CN104267708A - Method for detecting losing of short-fiber sulfonated flow signal - Google Patents
Method for detecting losing of short-fiber sulfonated flow signal Download PDFInfo
- Publication number
- CN104267708A CN104267708A CN201410555289.3A CN201410555289A CN104267708A CN 104267708 A CN104267708 A CN 104267708A CN 201410555289 A CN201410555289 A CN 201410555289A CN 104267708 A CN104267708 A CN 104267708A
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- value
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- flow signal
- controller
- flowmeter
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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
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM]
- G05B19/41875—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM] characterised by quality surveillance of production
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The invention discloses a method for detecting losing of a short-fiber sulfonated flow signal. According to the method, the flow signal real-time monitoring task of at flowmeter at a time can be completed through a controller, a flow signal collector and an alarm, manual online monitoring is completely replaced, once abnormity appears, an alarm can be given out immediately, and a worker can be reminded to carry out processing in time. The automation degree is further improved, and the manual application amount is reduced. The labor cost is saved, the number of required devices is small, the structure is simple, operation is simple and easy to implement, the investment cost is low, and the method is convenient to apply and popularize. According to the process steps, whether the flow of the flowmeter is abnormal or not can be monitored at any time, and the powerful guarantee is provided for normal sulfonated working procedures.
Description
Technical field
The present invention relates to the process for sulfonation in a kind of short fiber manufacture field, particularly relate to a kind of method that whether various signal is lost when detecting sulfonation operation.
Background technology
In short fiber manufacture field, especially the process for sulfonation in short fiber manufacturing process, need to detect at any time the flow of the various materials entered in sulfonation machine, ensure that various material can accurately and timely join in sulfonation machine, allow the going on of whole short fiber production technology serialization.
In the manufacture scene of short fiber, existing processing mode is: when object, liquid, gas are by flowmeter, being transmitted, by gathering signal, forming DCS picture on-line monitoring by a kind of small-signal of form of electromagnetism or pulse.When flow signal transmitting procedure have active, interference and fault time, DCS picture cannot show flow, there is monitoring error, object in situ, liquid, gas is easily caused to continue to add corresponding device (sulfonation machine), flow total amount cannot reach, automaticity will stop at this step, cause the fine sulfonation quality in sulfonation process of alkali, security incident occurs and the consumption of material installation.
For this reason, for the loss of flow signal, interference and fault time cannot monitor, present stage, by DCS personnel on-line monitoring, carries out man-to-man real-time follow-up to signal when often entering a flow.In sulfonation process, average 1 hour flow divides 5 times to add, and needs DCS employee to stand fast at this point of monitoring always, proposes query like this, waste the input of a large amount of personnel and equipment simultaneously, be unfavorable for that process practice is produced to the automaticity of DCS system.
Summary of the invention
In order to overcome the input of the prior art a large amount of personnel of waste that exist and equipment when detecting short fiber sulfonation flow signal, be unfavorable for the defect that process practice is produced, the invention provides the detection method that a kind of short fiber sulfonation flow signal is lost, this detection method is when there is deviation in flow signal, at once report to the police, prompting staff takes treatment measures, improves the automaticity of whole DCS system, reduce personnel control, save employment cost.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is:
The detection method that short fiber sulfonation flow signal is lost, is characterized in that: comprise following processing step:
A, in the controller a setting flow signal initial value;
B, arrange a transient delay value, this transient delay value is the standard value of flowmeter instantaneous delivery;
C, on flowmeter install a flow signal collector, the at any time flow value of acquisition stream gauge, this flow value is the actual instantaneous delivery value of flowmeter;
D, the transient delay value that the actual instantaneous delivery value collected in step C and b step set to be compared, when actual instantaneous delivery value is equal with transient delay value, the transient delay value collected is exported to controller;
The flow signal initial value that Step d is exported transient delay value and the setting of coming by e, controller compares, obtain a fiducial value, when fiducial value is zero, controller does not send control signal, when fiducial value is not 0, controller sends an alerting signal to alarm, and alarm is reported to the police after receiving alerting signal, prompting staff processes, and fixes a breakdown.
Described controller is PLC.
The present invention has the following advantages relative to prior art:
The present invention sets a flow signal initial value in the controller; Arrange a transient delay value, this transient delay value is the standard value of flowmeter instantaneous delivery; Flowmeter installs a flow signal collector, the at any time flow value of acquisition stream gauge, and this flow value is the actual instantaneous delivery value of flowmeter; The actual instantaneous delivery value collected in step C and b step are set transient delay value compare, when actual instantaneous delivery value is equal with transient delay value, the transient delay value collected is exported to controller; The flow signal initial value that Step d is exported transient delay value and the setting of coming by controller compares, obtain a fiducial value, when fiducial value is zero, controller does not send control signal, when fiducial value is not 0, controller sends an alerting signal to alarm, and alarm is reported to the police after receiving alerting signal, prompting staff processes, and fixes a breakdown.The present invention just can complete the task of the flow signal actual monitored of each flowmeter by a controller, a flow signal collector and alarm, substitute by artificial on-line monitoring completely, once occur extremely reporting to the police at once, prompting staff processes in time, further increase automaticity, and decrease artificial use amount, saved employment cost, the equipment used is few, structure is simple, operation is simple, and input cost is lower, easy to utilize.The present invention just can whether monitoring flow gauge flow be abnormal at any time, for sulfonation operation normally carries out providing powerful guarantee by above-mentioned processing step.
Accompanying drawing explanation
Fig. 1 is Cleaning Principle schematic diagram of the present invention.
Embodiment
The present invention is based on existing by DCS personnel on-line monitoring, the means of when often entering a flow, man-to-man real-time follow-up carrying out to signal solve the loss of flow signal, interference and fault time cannot monitor technical matters time a large amount of personnel of waste that also exist and the input of equipment, be unfavorable for the improvement that the defect that process practice is produced is carried out.
Crucial part of the present invention is the monitoring completing flow signal by a supervisory system, once occur extremely at once to report to the police, prompting staff carries out process and fixes a breakdown.
The present invention includes following processing step specifically:
A, in the controller a setting flow signal initial value;
B, arrange a transient delay value, this transient delay value is the standard value of flowmeter instantaneous delivery;
C, on flowmeter install a flow signal collector, the at any time flow value of acquisition stream gauge, this flow value is the actual instantaneous delivery value of flowmeter;
D, the actual instantaneous delivery value collected in step C and b step are set transient delay value compare, when actual instantaneous delivery value is equal with transient delay value, the transient delay value collected is exported to controller.
The flow signal initial value that Step d is exported transient delay value and the setting of coming by e, controller compares, obtain a fiducial value, when fiducial value is zero, controller does not send control signal, when fiducial value is not 0, controller sends an alerting signal to alarm, and alarm is reported to the police after receiving alerting signal, prompting staff processes, and fixes a breakdown.Controller in the present invention is PLC.
Principle of the present invention is elaborated below in conjunction with specific embodiment.
Embodiment 1
The equipment that the present embodiment relates to has PLC, flowmeter, flow signal collector and alarm, the annexation of each equipment is: flowmeter is for detecting the flow of the material entering into sulfonation machine, flow signal collector is arranged on flowmeter, for gathering flow signal, flow signal collector is connected in PLC by data line, PLC controls to be connected on alarm by data line, and alarm is photoelectricity and voice guard.Before metering starts, we first set the initial value of a flow signal in the controller, then metering is started, in the metering incipient stage, first little rear smoothing process during flow, in the process with regard to delay value during setting a flash, just flow signal is exported to PLC when flow signal arrives this value, compare with the initial value of setting after PLC receives flow signal, the initial value of setting is deducted by the instantaneous delivery value of reality, be 0 count 0, 1 is counted when not being 0, when calculated value is 0, illustrate that the flow of flowmeter is normal, all are according to normally carrying out, when calculated value is 1, illustrate that the flow of flowmeter is abnormal, PLC drives alarm to report to the police, prompting workman carries out troubleshooting process.In the present embodiment we adopt flow signal collector be a sensor, it by flow accurately and timely be transferred to PLC.
In accompanying drawing of the present invention,
Metering starts: metering starts to refer to the judgement by the anterior automatic valve of flow meter in process for sulfonation is produced, and gathers the beginning that devise a stratagem amount is determined in automatic valve open state monitoring point when autovalve is opened.
Initial value sets: to refer to that before metering starts the instantaneous delivery of DCS employee to metering carries out a standard value given.
Transient delay value: in the metering incipient stage, during flow, first little rear smoothing process, just sets a delay value in the process.
Actual instantaneous delivery value: instantaneous delivery smoothing stage after the delay, the actual result that the value of convection current inflow-rate of water turbine collection is carried out measuring and obtained.
Relatively: setting instantaneous value compares with actual instantaneous value, adopts actual value to deduct the principle of setting value.
Identical: to refer to comparative result in step, actual value and instantaneous value indifference.
Continue to perform: flow continues through, and real-time follow-up, until flow reaches accumulated value.
Metering terminates: the accumulated value of flow reaches setting value.
Be greater than or less than: refer to comparative result in step, actual value and instantaneous value there are differences.
Report to the police and start: compare the result drawn, by PLC coding, utilize digital output point position, Output rusults.
Report to the police: when alarm set point collect digital output point position for ' 1 ' time, report to the police send alarm sound.
DCS personnel investigate fault: personnel, after hearing alarm sound, according to DCS picture warning point of scintillation, determine alert locations, process corresponding fault, guarantee the normal acquisition of flow instantaneous value.
Claims (2)
1. the detection method of short fiber sulfonation flow signal loss, is characterized in that: comprise following processing step:
A, in the controller a setting flow signal initial value;
B, arrange a transient delay value, this transient delay value is the standard value of flowmeter instantaneous delivery;
C, on flowmeter install a flow signal collector, the at any time flow value of acquisition stream gauge, this flow value is the actual instantaneous delivery value of flowmeter;
D, the actual instantaneous delivery value collected in step C and b step are set transient delay value compare, when actual instantaneous delivery value is equal with transient delay value, the transient delay value collected is exported to controller;
The flow signal initial value that Step d is exported transient delay value and the setting of coming by e, controller compares, obtain a fiducial value, when fiducial value is zero, controller does not send control signal, when fiducial value is not 0, controller sends an alerting signal to alarm, and alarm is reported to the police after receiving alerting signal, prompting staff processes, and fixes a breakdown.
2. the detection method of short fiber sulfonation flow signal loss according to claim 1, is characterized in that: described controller is PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410555289.3A CN104267708A (en) | 2014-10-20 | 2014-10-20 | Method for detecting losing of short-fiber sulfonated flow signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410555289.3A CN104267708A (en) | 2014-10-20 | 2014-10-20 | Method for detecting losing of short-fiber sulfonated flow signal |
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| CN104267708A true CN104267708A (en) | 2015-01-07 |
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| CN201410555289.3A Pending CN104267708A (en) | 2014-10-20 | 2014-10-20 | Method for detecting losing of short-fiber sulfonated flow signal |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2687382Y (en) * | 2004-03-26 | 2005-03-23 | 石家庄铁路分局邯郸给水电力段 | Discharging amount reduction and vacuum auto-protection device for submersible pump |
| JP2005175052A (en) * | 2003-12-09 | 2005-06-30 | Tokyo Electron Ltd | Substrate processing apparatus and controlling method therefor |
| CN1670646A (en) * | 2005-04-14 | 2005-09-21 | 东北大学 | Rare earth cascade extraction separation intelligence control system and method |
| CN103234606A (en) * | 2013-04-19 | 2013-08-07 | 睿能太宇（沈阳）能源技术有限公司 | System and method for verifying flow rate |
-
2014
- 2014-10-20 CN CN201410555289.3A patent/CN104267708A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005175052A (en) * | 2003-12-09 | 2005-06-30 | Tokyo Electron Ltd | Substrate processing apparatus and controlling method therefor |
| CN2687382Y (en) * | 2004-03-26 | 2005-03-23 | 石家庄铁路分局邯郸给水电力段 | Discharging amount reduction and vacuum auto-protection device for submersible pump |
| CN1670646A (en) * | 2005-04-14 | 2005-09-21 | 东北大学 | Rare earth cascade extraction separation intelligence control system and method |
| CN103234606A (en) * | 2013-04-19 | 2013-08-07 | 睿能太宇（沈阳）能源技术有限公司 | System and method for verifying flow rate |
Non-Patent Citations (1)
| Title |
|---|
| 张磊，黄武辉: "磺化工艺流程计算机监控系统的开发与应用", 《创意与实践》 * |
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Application publication date: 20150107 |
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