CN111238675A - Real-time online monitoring system for surface temperature of vat in electric workshop - Google Patents
Real-time online monitoring system for surface temperature of vat in electric workshop Download PDFInfo
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- CN111238675A CN111238675A CN202010090693.3A CN202010090693A CN111238675A CN 111238675 A CN111238675 A CN 111238675A CN 202010090693 A CN202010090693 A CN 202010090693A CN 111238675 A CN111238675 A CN 111238675A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
- G01K7/22—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a non-linear resistance, e.g. thermistor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/024—Means for indicating or recording specially adapted for thermometers for remote indication
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
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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]
- G05B19/4183—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 data acquisition, e.g. workpiece identification
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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]
- G05B19/4184—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 fault tolerance, reliability of production system
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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 real-time online monitoring system for the surface temperature of a vat in an electric workshop, which comprises a baffle plate, wherein an inclined mounting cross beam is arranged above the baffle plate, the bottom end of the mounting cross beam is fixedly connected with the baffle plate through a plurality of mounting brackets, and a plurality of sensor fixing bases are uniformly distributed on one side of the mounting cross beam, which is far away from the vat. In the invention, a wireless sensing technology is applied, the temperature sensor and an object to be measured are measured in a non-contact manner, and the data output end of the temperature sensor is electrically connected with the signal input end of the distributed control system, so that the ultra-strong data transmission speed and anti-interference capability are realized, the stable and reliable operation of data is ensured, and the monitoring interface arranged on the distributed control system is added in the original DCS picture, thereby achieving the purposes of flexible use mode and complete functions. The data acquisition module, the data processing module and the control module visually and clearly display real-time data through the monitoring interface, and the control system is convenient to operate and ensures a safe and reliable control production process.
Description
Technical Field
The invention relates to the technical field of papermaking drying, in particular to a real-time online monitoring system for the surface temperature of a vat in an electric workshop.
Background
The special paper production adopts a special large drying cylinder drying mode which is the fastest drying mode with the highest efficiency, the working speed of the paper machine depends on the drying efficiency of the large drying cylinder to a great extent, and the monitoring, control and adjustment of the surface temperature of the large drying cylinder become a link which is particularly important for stable and reliable production when the large drying cylinder works with high efficiency.
Big dryer body structure includes: the cylinder body, the operation side end cover, the transmission side end cover, the manhole device, the heat preservation device and the like have special structures and rotate all the time, so that the collection of the temperature becomes a necessary obstacle in the present stage. The existing cylinder temperature acquisition is completed by an operator through a handheld infrared thermometer, and the operation method has great defects in sampling point position, accuracy and timeliness, but has the defect that no better solution is available and only manual monitoring can be used.
Disclosure of Invention
The invention aims to provide a real-time online monitoring system for the surface temperature of a cylinder of an electric workshop, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a real-time on-line monitoring system of electrical workshop vat surface temperature, includes the baffle, the top department of baffle is equipped with the installation crossbeam of slope, the bottom of installation crossbeam is through a plurality of installing supports and baffle fixed connection, one side evenly distributed that the vat was kept away from to the installation crossbeam has a plurality of sensor fixed baseplate, all be equipped with temperature sensor in the sensor fixed baseplate, and temperature sensor's sense terminal all passes the detection area on installation crossbeam and the directional vat, temperature sensor's data output end all is connected with the signal input part electricity of control system that distributes.
Wherein the detection area is positioned on the cylinder wall between the paper guide roller at the discharge port of the large cylinder and the large cylinder movable scraper.
The sensor fixing base is of a cylindrical structure, penetrates through the mounting cross beam and is welded with the top surface of the mounting cross beam, and two ends of the sensor fixing base are fixedly connected with the temperature sensor through nuts.
The temperature sensor is a non-contact sensor, and a sensitive element in the temperature sensor is a thermistor.
The distributed control system comprises a data acquisition module, a data processing module and a control module, the temperature sensors are in data connection with the data acquisition module, and the control module is in data connection with the vat.
The data processing module inputs the temperature data detected by the temperature sensors collected by the data acquisition module into the corresponding real-time list generation module respectively, and meanwhile, the corresponding data enter the historical database.
The real-time list generation module is in data connection with the report generation module and is used for outputting reports.
The signal output end of the control module is electrically connected with the signal input ends of the drying module of the vat and the rotating module of the vat so as to regulate and control the temperature and the rotating speed of the vat.
The data processing module is internally provided with an abnormal data processing module, and the signal output end of the abnormal data processing module is electrically connected with the signal input ends of the alarm and the real-time list generating module.
The outer side of the heat-conducting wire is coated with an insulating layer, and the heat-conducting wire is uniformly wound on the surface of the armor layer and is integrally formed with the outer sheath.
The abnormal data processing module marks the abnormal data and then transmits the marked abnormal data to the real-time list generating module, and the mark is highlighted on the human-computer interface.
Compared with the prior art, the invention has the beneficial effects that:
1. in the invention, a wireless sensing technology is applied, the temperature sensor and an object to be measured are measured in a non-contact manner, and the data output end of the temperature sensor is electrically connected with the signal input end of the distributed control system, so that the ultra-strong data transmission speed and anti-interference capability are realized, the stable and reliable operation of data is ensured, and the monitoring interface arranged on the distributed control system is added in the original DCS picture, thereby achieving the purposes of flexible use mode and complete functions. The data acquisition module, the data processing module and the control module visually and clearly display real-time data through the monitoring interface, and the control system is convenient to operate and ensures a safe and reliable control production process.
2. In the invention, aiming at the improvement aspects of the production process, such as the defects of on-site monitoring, large measurement deviation, incapability of monitoring a temperature rise historical curve and the like of an operator, the distributed control system can realize the functions of monitoring early warning and alarming, real-time curve display, historical data tracking, process data analysis and the like, and the realization of the functions not only greatly reduces the labor intensity of the operator and improves the product quality stability, but also provides visual and accurate data support for process technicians in the aspects of controlling technical indexes, optimizing control parameters, saving steam and the like.
Drawings
FIG. 1 is a schematic structural diagram of a real-time online monitoring system for the surface temperature of a cylinder of an electric workshop;
FIG. 2 is a side view of a sensor fixing base in the real-time online monitoring system for the surface temperature of a cylinder of an electric workshop;
FIG. 3 is a block diagram of a distributed control system in the real-time online monitoring system for the surface temperature of the cylinder of the electric workshop.
In the figure: 1. a baffle plate; 2. mounting a cross beam; 3. mounting a bracket; 4. a sensor fixing base; 5. a temperature sensor; 6. a distributed control system; 601. a data acquisition module; 602. a data processing module; 603. a control module; 604. a real-time list generation module; 605. a history database; 606. a report generation module; 607. an abnormal data processing module; 7. paper guiding rolls; 8. the large cylinder moves the scraper; 9. a drying module; 10. and rotating the module.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution:
the utility model provides a real-time on-line monitoring system of electrical workshop vat surface temperature, including baffle 1, the top department of baffle 1 is equipped with the installation crossbeam 2 of slope, the bottom of installation crossbeam 2 is through a plurality of installing supports 3 and baffle 1 fixed connection, one side evenly distributed that the vat was kept away from to installation crossbeam 2 has a plurality of sensor fixed baseplate 4, all be equipped with temperature sensor 5 in the sensor fixed baseplate 4, and temperature sensor 5's sense terminal all passes the detection area on installation crossbeam 2 and the directional vat, temperature sensor 5's data output end all is connected with the signal input part electricity of control system 6 that distributes.
In the technical scheme of the invention, a wireless sensing technology is applied, the temperature sensor 5 and an object to be measured are subjected to non-contact measurement, the data output end of the temperature sensor 5 is electrically connected with the signal input end of the distributed control system 6, the ultra-strong data transmission speed and the anti-interference capability are realized, the stable and reliable operation of data is ensured, and the monitoring interface arranged on the distributed control system 6 is added in the original DCS picture, so that the flexible use mode and complete functions are achieved. The data acquisition module 601, the data processing module 602 and the control module 603 all visually and clearly display real-time data through the monitoring interface, and the operation is convenient, so that the safe and reliable control of the production process is ensured.
Aiming at the improvement aspect of the production process, such as the defects of on-site monitoring, large measurement deviation, incapability of monitoring a temperature rise historical curve and the like of an operator, the distributed control system 6 can realize the functions of monitoring early warning and alarming, real-time curve display, historical data tracking, process data analysis and the like, and the realization of the functions not only greatly reduces the labor intensity of the operator and improves the stability of product quality, but also provides visual and accurate data support for process technicians in the aspects of controlling technical indexes, optimizing control parameters, saving steam and the like.
Wherein, detection area a is located the cylinder wall between the drawing roller 7 of vat discharge gate department and vat removal scraper 8, avoids detecting the position and too close to vat inside for temperature sensor 5 self receives the temperature influence and leads to.
Wherein, sensor fixed baseplate 4 is the tubular structure, and pass installation crossbeam 2 and with the top surface welding of installation crossbeam 2, the both ends of sensor fixed baseplate 4 all are through nut and 5 fixed connection of temperature sensor, can protect temperature sensor 5 inside sensor fixed baseplate 4 on the one hand, and on the other hand passes through the nut at 4 both ends of sensor fixed baseplate and fixes temperature sensor 5 for temperature sensor 5's detection direction is invariable, improves the accuracy of detected data.
The temperature sensor 5 is a non-contact sensor, the sensitive element in the temperature sensor 5 is a thermistor, the temperature sensor 5 is not affected by the measured medium, the accuracy of the initial value is ensured, the initial deviation is reduced to the maximum extent, and the actual detection value on site is obtained after subsequent signal transmission and operation.
The distributed control system 6 comprises a data acquisition module 601, a data processing module 602 and a control module 603, the temperature sensors 5 are in data connection with the data acquisition module 601, the control module 603 is in data connection with a vat, functions such as monitoring early warning and alarming, real-time curve display, historical data tracking, process data analysis and the like are realized through modules inside the distributed control system 6, the functions are realized, the labor intensity of operators is greatly reduced, the stability of product quality is improved, and visual and accurate data support is provided for process technicians in aspects of controlling technical indexes, optimizing control parameters, saving steam and the like.
The data processing module 602 inputs the temperature data detected by each temperature sensor 5 collected by the data acquisition module 601 into the corresponding real-time list generation module 604, and the corresponding data enters the historical database 605, the temperature data detected by each temperature sensor 5 is processed individually, a continuous data list is generated by the real-time list generation module 604 for an operator to observe, and the corresponding data while generating the list also enters the historical database 605 for archiving, so as to be called later.
The real-time list generating module 604 is in data connection with the report generating module 606 and is configured to output a report, and the real-time list generating module 604 may directly generate a corresponding temperature report through the report generating module 606 and may generate a periodic report or a triggered report as required.
The signal output end of the control module 603 is electrically connected with the signal input ends of the drying module 9 and the rotating module 10 of the vat so as to regulate and control the temperature and the rotating speed of the vat, and the control module 603 sends commands to the drying module 9 and the rotating module 10 of the vat according to the production process requirements and by referring to the temperature data monitored in real time, so that the working efficiency of the vat is continuously optimized.
The abnormal data processing module 607 is arranged in the data processing module 602, the signal output end of the abnormal data processing module 607 is electrically connected with the signal input end of the alarm and the real-time list generating module 604, before the data processing module 602 transmits the processed data, the abnormal data processing module 607 detects the data to be abnormal (if the temperature data difference with the temperature data monitored by other temperature sensors 5 is too large or the numerical value difference between adjacent temperature data is too large, etc.), if the abnormal data is found, the abnormal data is marked and is marked in the real-time list generating module 604, and meanwhile, the alarm is given out, and if the data are abnormal continuously, the alarm is given out through the alarm.
The abnormal data processing module 607 marks the abnormal data and transmits the marked abnormal data to the real-time list generating module 604, and the mark is highlighted on the human-computer interface, so that the abnormal data can be highlighted on the human-computer interface after being marked to facilitate observation of an operator, so as to attract the attention of the operator.
The working principle is as follows:
the wireless sensing technology is applied, the temperature sensor 5 and an object to be measured are measured in a non-contact mode, the data output end of the temperature sensor 5 is electrically connected with the signal input end of the distributed control system 6, the ultra-strong data transmission speed and the anti-interference capacity are achieved, stable and reliable operation of data is guaranteed, a monitoring interface arranged on the distributed control system 6 is added in an original DCS picture, and the purposes of flexible use mode and complete functions are achieved. The data acquisition module 601, the data processing module 602 and the control module 603 all visually and clearly display real-time data through the monitoring interface, and the operation is convenient, so that the safe and reliable control of the production process is ensured.
Aiming at the improvement aspect of the production process, such as the defects of on-site monitoring, large measurement deviation, incapability of monitoring a temperature rise historical curve and the like of an operator, the distributed control system 6 can realize the functions of monitoring early warning and alarming, real-time curve display, historical data tracking, process data analysis and the like, and the realization of the functions not only greatly reduces the labor intensity of the operator and improves the stability of product quality, but also provides visual and accurate data support for process technicians in the aspects of controlling technical indexes, optimizing control parameters, saving steam and the like.
The sensitive element inside the temperature sensor 5 is a thermistor, and since the thermistor is sensitive to temperature and different materials are sensitive to temperature to different degrees, i.e. the temperature coefficients of the thermistor are different, temperature measurement in industrial application is to utilize the different degrees of sensitivity of the thermistor to temperature, which shows that the resistivity changes:
Rt＝RT*EXP(Bn*(1/T-1/T0)
wherein RT and RT0 are resistance values at T, T0 temperature, and Bn is material constant.
The working temperature of the large cylinder is measured in the above mode, and the temperature value can be accurately measured.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a real-time on-line monitoring system of big jar surface temperature of electrical workshop, includes baffle (1), its characterized in that: the utility model discloses a temperature sensor, including baffle (1), one side evenly distributed that the top department of baffle (1) was equipped with the installation crossbeam (2) of slope, the bottom of installation crossbeam (2) is through a plurality of installing support (3) and baffle (1) fixed connection, one side evenly distributed that the vat was kept away from in installation crossbeam (2) has a plurality of sensor fixed baseplate (4), all be equipped with temperature sensor (5) in sensor fixed baseplate (4), and the sense terminal of temperature sensor (5) all passes installation crossbeam (2) and the detection area on the directional vat, the data output part of temperature sensor (5) all is connected with the signal input part electricity of control system (6) is scattered.
2. The real-time online monitoring system for the surface temperature of the cylinder of the electric workshop according to claim 1, characterized in that: the detection area is positioned on the cylinder wall between a paper guide roller (7) at the discharge port of the large cylinder and a large cylinder moving scraper (8).
3. The real-time online monitoring system for the surface temperature of the cylinder of the electric workshop according to claim 1, characterized in that: the sensor fixing base (4) is of a cylindrical structure, penetrates through the mounting cross beam (2) and is welded with the top surface of the mounting cross beam (2), and the two ends of the sensor fixing base (4) are fixedly connected with the temperature sensor (5) through nuts.
4. The real-time online monitoring system for the surface temperature of the cylinder of the electric workshop according to claim 1, characterized in that: the temperature sensor (5) is a non-contact sensor, and a sensitive element in the temperature sensor (5) is a thermistor.
5. The real-time online monitoring system for the surface temperature of the cylinder of the electric workshop according to claim 1, characterized in that: the distributed control system (6) comprises a data acquisition module (601), a data processing module (602) and a control module (603), the temperature sensors (5) are in data connection with the data acquisition module (601), and the control module (603) is in data connection with the vat.
6. The real-time online monitoring system for the surface temperature of the cylinder of the electric workshop according to claim 5, characterized in that: the data processing module (602) inputs the temperature data detected by each temperature sensor (5) collected by the data acquisition module (601) into the corresponding real-time list generation module (604), and meanwhile, the corresponding data enter the historical database (605).
7. The real-time online monitoring system for the surface temperature of the cylinder of the electric workshop according to claim 6, characterized in that: the real-time list generation modules (604) are in data connection with the report generation module (606) and are used for outputting reports.
8. The real-time online monitoring system for the surface temperature of the cylinder of the electric workshop according to claim 5, characterized in that: and the signal output end of the control module (603) is electrically connected with the signal input ends of the drying module (9) of the vat and the rotating module (10) of the vat so as to regulate and control the temperature and the rotating speed of the vat.
9. The real-time online monitoring system for the surface temperature of the cylinder of the electric workshop according to claim 6, characterized in that: an abnormal data processing module (607) is arranged in the data processing module (602), and the signal output end of the abnormal data processing module (607) is electrically connected with the signal input end of the alarm and the real-time list generating module (604).
10. The real-time online monitoring system for the surface temperature of the cylinder of the electric workshop according to claim 9, characterized in that: and the abnormal data processing module (607) marks the abnormal data and then transmits the marked abnormal data to the real-time list generating module (604), and the mark is highlighted on the human-computer interface.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112781748A (en) * | 2020-12-22 | 2021-05-11 | 江苏钧瓷科技有限公司 | Testing device for surface temperature of PTC thermistor |
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| US6104987A (en) * | 1997-10-03 | 2000-08-15 | The Nash Engineering Company | System for monitoring dryer drum temperatures |
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| CN112781748A (en) * | 2020-12-22 | 2021-05-11 | 江苏钧瓷科技有限公司 | Testing device for surface temperature of PTC thermistor |
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Application publication date: 20200605 |
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