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 PDF

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Publication number
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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dcs
failure
dcs system
oxygen compressor
signals
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CN105201810A (en
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陈伟
麦吉昌
陈继科
汪建平
周平
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Sichuan Desheng Group Vanadium Titanium Co Ltd
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Sichuan Desheng Group Vanadium Titanium Co Ltd
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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

A kind of method of the quick lookup failure based on DCS system
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.
CN201510514515.8A 2015-08-20 2015-08-20 A kind of method of the quick lookup failure based on DCS system Active CN105201810B (en)

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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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