CN101178588B - Air sword blower fan precision detection monitoring system - Google Patents
Air sword blower fan precision detection monitoring system Download PDFInfo
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- CN101178588B CN101178588B CN2007101587395A CN200710158739A CN101178588B CN 101178588 B CN101178588 B CN 101178588B CN 2007101587395 A CN2007101587395 A CN 2007101587395A CN 200710158739 A CN200710158739 A CN 200710158739A CN 101178588 B CN101178588 B CN 101178588B
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- air knife
- blower fan
- bearing
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to an air knife fan accurate detection monitoring system, consisting of a temperature and shake detecting element, an analog quantity input module, a PLC controller, a HMI human-computer interface and a process data acquisition system. The working procedure of the invention is that the detection data is transmitted to the PLC through the analog quantity input module by a thermoelectric couple and a shake sensor which are arranged on the bearing of the air knife fan; the temperature and the shake data are compared according to the programmed air knife program, and an alarming information is displayed through the HMI human-computer interface when the temperature and the shake data reach the alarming value; when the temperature and the shake data surpass the upper limit value, the order of stopping the vehicle is sent by the PLC and the air knife stops operating. Besides, the temperature and the shake data of the bearing of the air knife are recorded and the failures are diagnosed through the data acquisition system. The system has the advantages of stable operation, accurate detection, processing in time, achieving the real time data recording and displaying and the automatic stopping when in abnormal state, and preventing damage to the fan caused by the locking of the bearing of the air knife and the deterioration of the device due to over high temperature.
Description
Technical field
The invention belongs to the robotization detection range, be specifically related to a kind ofly detect, monitor the device and the control system of its running status and measure of precision by cold-rolling galvanization line air sword blower fan being carried out temperature, vibration data.
Background technology
What cold-rolling galvanization line air knife adopted is the tower structure design, and the three roller systems that sinking roller and bistable fixed roll are formed in the zinc pot can make the band steel stable, adjust the plate shape that the insertion depth of stablizing roller can be controlled the band steel, to obtain uniform coating.Applicating fluid impact principle such as the air that air knife uses, nitrogen are controlled zinc layer weight.In production practices, the operator mainly adjusts the air knife parameter according to the result of thickness measurement online instrument test, realizes the purpose of control zinc layer weight.The air knife air compression system be mainly used in to air knife cutter lip open soon, the edge dam open closed provides power gas.Air sword blower fan all plays an important role on whole air knife equipment even whole piece galvanization production line.In case blower fan damages, and will have a strong impact on the operation and the product quality of galvanization production line.
Yet the pressure control more complicated of air sword blower fan is although adopt the PI closed-loop control, because the phenomenon that locking of air sword blower fan bearing or draught fan impeller damage up to 3000 commentaries on classics/min, also takes place motor speed once in a while.Causing the reason of air knife reservoir bearing locking, mainly is that the air sword blower fan temperature is too high, and lubricated glycerine viscosity is reduced, due to bearing is owed to lubricate.The reason that causes draught fan impeller to damage then is that bad or bearing of bearing concentricity and axle sleeve excesssive gap cause.Solve this two problems, its core crux is to detect and control the temperature and the vibrating state of air sword blower fan bearing, promptly the measure of precision of air sword blower fan is carried out timing monitoring and diagnosis, judges in advance and is solved.
By retrieval, do not find identical with the present invention or akin patent documentation and relevant document announcement.
Summary of the invention
Purpose of the present invention is exactly at the problems referred to above, aim to provide a kind of by detection and processing to air sword blower fan temperature, vibration data, at any time monitor the air sword blower fan duty and also in time control automatically, guarantee the air sword blower fan precision detection monitoring system of blower fan operation steady in a long-term.
For this reason, technical solution of the present invention is:
Air sword blower fan precision detection monitoring system of the present invention, total system comprise temperature, shock detection element, long-range analog data load module, PLC controller, HMI man-machine interface and process data acquisition system.
Its setting and detection monitor procedure are:
1, on air sword blower fan inlet bearing and outlet bearing, detector unit and shock detection element are set respectively.
2, design air knife precision detection monitoring system electric installation drawing adds long-range analog data load module, with temperature on the air knife bearing, shock detection element testing to temperature, shock detection data transfer in long-range analog data load module.
3, the data that long-range analog data load module is collected are sent to by industrial field bus and carry out the program judgement among the PLC, detected temperature, vibration data are compared, when temperature or vibration data reach alarming value, PLC sends warning message, and information is sent on the man-machine picture of HMI shows; When temperature or vibration data surpassed the upper limit alarm value, PLC sent parking order, and air knife is out of service.
4, the data that show air knife bearing temperature, vibrations on the HMI picture are in real time grasped the fan operation state.
5, utilize the analytic record platform of process data acquisition system, record air knife bearing temperature, vibration data are analyzed the data in the current and historical record of blower fan, carry out fault diagnosis and ex-post analysis in advance.
Described detector unit is the temperature thermopair; The shock detection element is a shock sensor.
Described temperature or vibration data alarming value are respectively: temperature＞110 ℃, vibration amplitude＞8mm/s; Described temperature or vibration data upper limit alarm value are: temperature＞130 ℃, vibration amplitude＞13mm/s.
Implementation result of the present invention is:
Since be provided with rationally, the program composition science, total system operates steadily, and temperature, vibration data detect accurately, are quick on the draw, and handle in time, have realized the predetermined function of system.The operative employee can see temperature, vibration data and the diagnostic result of air sword blower fan at any time, understands and grasps the fan operation state, provides reliable basis for the equipment point-detecting personnel formulate the air sword blower fan precision spot-checking plan.Alarm control system is in monitoring in real time; realized the automatic chain shutdown of abnormality; avoid that air sword blower fan Yin Wendu is too high to be caused bearing locking and equipment deterioration and produce the phenomenon of blower fan damage; guarantee blower fan operation steady in a long-term, for the raising of whole galvanized wire production direct motion and product quality provides essential condition.
Description of drawings
Fig. 1 is the air sword blower fan precision detection monitoring system arrangement plan.
Fig. 2 is the air sword blower fan precision detection monitoring system working plan.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described.
As seen from Figure 1, air sword blower fan precision detection monitoring system is made up of detecting element, long-range analog data input system, PLC, HMI man-machine interface, process data acquisition system.
Air sword blower fan precision detection monitoring system is provided with and detects watchdog routine as shown in Figure 2:
By being arranged on thermopair (PT100) and the shock sensor (MTN/1185CQ) on air sword blower fan inlet bearing and the outlet bearing, detected temperature and vibration data are flowed to the analog quantity load module respectively.
The analog quantity load module is sent to deal with data among the PLC by fieldbus.
PLC compares temperature, vibration data and normal value according to the program of establishment.
When detected temperatures＜110 ℃, vibration amplitude＜8m/s, the air sword blower fan operate as normal; According to relevant with the HMI display routine of the air knife PLC that writes, on the HMI interface, show the data of air knife bearing temperature, vibrations in real time, so that grasp the fan bearing running status with the HMI communication program.
When temperature＞110 ℃ or vibration amplitude＞8mm/s, PLC procedure triggers alerting signal gives a warning and show relevant data and warning message on the HMI man-machine interface.
When temperature＞130 ℃ or vibration amplitude＞13mm/s promptly surpassed the upper limit alarm value, PLC sent parking order, and air knife is out of service; The HMI man-machine interface shows relevant warning message.
Utilize the process data acquisition system analysis platform of installing, the real time data of track record air knife bearing temperature, vibrations is write relative program; Being convenient to the operative employee understands at any time and monitors the fan operation situation; The equipment point-detecting personnel formulate accurate spot-checking plan, carry out fault diagnosis in advance and are also eliminated.
Claims (3)
1. an air sword blower fan precision detection monitoring system is characterized in that, described system comprises temperature, shock detection element, long-range analog data load module, PLC controller, HMI man-machine interface and process data acquisition system; Its setting and detection monitor procedure are:
1), on air sword blower fan inlet bearing and outlet bearing, detector unit and shock detection element are set respectively;
2), design air knife precision detection monitoring system electric installation drawing, add long-range analog data load module, with temperature on the air knife bearing, shock detection element testing to temperature, shock detection data transfer in long-range analog data load module;
3), the data that long-range analog data load module is collected are sent to by industrial field bus and carry out the program judgement among the PLC, detected temperature, vibration data are compared, when temperature or vibration data reach alarming value, PLC sends warning message, and information is sent on the man-machine picture of HMI shows; When temperature or vibration data surpassed the upper limit alarm value, PLC sent parking order, and air knife is out of service;
4), on the HMI picture, show in real time the data of air knife bearing temperature, vibrations, grasp the fan operation state;
5), utilize the analytic record platform of process data acquisition system, record air knife bearing temperature, vibration data are analyzed the data in the current and historical record of blower fan, carry out fault diagnosis and ex-post analysis in advance.
2. air sword blower fan precision detection monitoring system according to claim 1 is characterized in that, described detector unit is the temperature thermopair; The shock detection element is a shock sensor.
3. air sword blower fan precision detection monitoring system according to claim 1 is characterized in that, described temperature or vibration data alarming value are respectively: temperature＞110 ℃, vibration amplitude＞8mm/s; Described temperature or vibration data upper limit alarm value are: temperature＞130 ℃, vibration amplitude＞13mm/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101587395A CN101178588B (en) | 2007-12-06 | 2007-12-06 | Air sword blower fan precision detection monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101587395A CN101178588B (en) | 2007-12-06 | 2007-12-06 | Air sword blower fan precision detection monitoring system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101178588A CN101178588A (en) | 2008-05-14 |
| CN101178588B true CN101178588B (en) | 2010-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101587395A Expired - Fee Related CN101178588B (en) | 2007-12-06 | 2007-12-06 | Air sword blower fan precision detection monitoring system |
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| CN (1) | CN101178588B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111473022B (en) * | 2020-04-13 | 2022-08-19 | 攀钢集团攀枝花钢钒有限公司 | Method for analyzing and diagnosing fault vibration of servo hydraulic system |
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2007
- 2007-12-06 CN CN2007101587395A patent/CN101178588B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN101178588A (en) | 2008-05-14 |
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Granted publication date: 20100728 Termination date: 20191206 |
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| CF01 | Termination of patent right due to non-payment of annual fee |