The ENVADA Online monitoring and fault diagnosis system contains the products and services provided by ENVADA and her companion. The aim of the system is to help the client create a safe and comfortable production and live space so as to make the client not worrying the safe problem of their device any longer. This solution is for metallurgical industry. How to solve the problem of safety of production and fault prediction is introduced hereafter.
This is one of complete sets of guides introducing ENVADA’s solutions for the good of clients and some successful examples through the cooperation between ENVADA and other companies.
1. Metallurgical industry present development trend
The metallurgical industry is one of the most important industries in the world. The characteristic of the industry makes the company in the industry continually compete with other companies in the same industry and the substitutes produced by other industry for market. Therefore, the production company in the industry must continually develop new product and improve production efficiency and quality of its product to meet the demand of market. All of these conditions challenge the sensitivity of metallurgical industry. The company in the industry must also meet the demands in quality of product, delivery on time, low cost and so on.
The safety of production and continual safe operation of device is the first task of metallurgical industry. To complete this task, the device must always be in a good condition. The unexpected accident, tear and wear rate and life prediction of device should be understood in advance. Therefore, the company should be able to predict various conditions that the device may meet so as to take suitable measures in advance to ensure continual safe operation of device.
2. Solving your problem is our aim
To complete continual safe production, the device must always be in a good condition. Therefore, the forward real-time online monitoring is required so as to understand possible condition and time of occurrence of fault through monitoring variety of operation parameters of device before the fault occurs. Because the random fault occurs abruptly, which will produce the largest damage and cause the hardest loss, how to avoid the occurrence of random fault of device should be firstly considered. The technique of automatic online monitoring mode is advanced in comparison with online measuring and offline analysis monitoring mode as well as periodic monitoring mode so it can prevent the occurrence of abrupt fault of device and no special expert is needed to operate in the site. To predict the fault of device, which has much to do with time, and to change the maintenance mode of device are mainly take into attention here. The technique develops on the basic of state monitoring and fault analysis and is a key to complete that advanced predict maintenance substitutes preventative maintenance based on time.
The vibration signal is most widely used among many signals reflecting the status of device. Because the vibration is often the main cause of fault of device, the signal of vibration commonly reflects variety of fault of device and contains variety of rich messages. Measuring vibration of device is convenient and generally without any effect on normal operation of device. The necessity and meaning installing rotating machinery vibration monitoring and fault diagnosis system are as follows：
1． The data record and signal analysis are able to provide powerful evidence for accident analysis after the accident occurs so as to save time judging the fault and to decrease the loss caused by stop of device.
2． The occurrences of many faults have a developing procedure from light to hard. The trend analysis and the measurement of abnormal signal are able to find the potential fault of device early so as to take measures in advance, to avoid or decrease the occurrence of accident, to extend the life of device and to improve usable time of device.
3． By analyzing the state of device is able to determine the best suitable time of maintenance and the project of maintenance, to prompt the transformation of maintenance mode from accident maintenance mode and periodic maintenance mode to condition maintenance mode, to avoid unnecessary stop of device, to speed up the maintenance to decrease the time of stop of device and to save the cost of maintenance.
4． The application of fault diagnosis expert system is able to solve the problem of lack of expert in the site, to make best of rich experience of the expert in vibration monitoring domain so as to improve the level of fault diagnosis and produce great social and economical benefits.
5． The vibration measuring technology is an essential tool for dynamic balance of rotator in the site.
Online monitoring technology is able to monitor and analyze the state of machinery. By monitoring and analyzing the state of fault of device and the development of fault in real time is not only able to understand the fault and the fault extent of device at any time but also to predict what time the fault of device would reach a danger extent and the device should be stopped for maintenance so as to apply advanced predict maintenance, which is used to substitute the traditional preventative maintenance based on time, to the device and to provide scientific guarantee for continual safe production.
3. EN8000 feature and advantage---Our product ensures safety of your device
The EN8000 large-scale rotating machinery vibration monitoring and fault diagnosis expert system made in ENVADA is designed and produced to meet above demands. It is able to provide continual protection for your device.
4. EN8000 system main feature
⑴A data acquisition box adopts a module construction and has good reliability and easy of installation, maintenance and substitution.
⑵The system adopts industrial configuration mode and can online edit the data measured and the expression form of the data.
⑶The system has many vibration analysis methods available suitable for gear and rolling bearing, e.g. Filter analysis, reverse spectrum analysis, envelop analysis, detailed spectrum analysis, wavelet transformation etc.
⑷The fault diagnosis expert system has many functions, e.g. Acquiring sign, automatic diagnosis, dialogue diagnosis, storage of diagnosis result etc.
⑸The system adopts Windows Operating System so the user interface is very friendly and the operation is very convenient.
5. EN8000 system installation
The EN8000 hot-strip mill online monitoring and fault diagnosis system installed in the 2250mm hot-strip mill of No.2 Hot-strip Plant of Wuhan Steel Group is composed of 10 intelligent data acquisition boxes, an upper computer and a data server.
The 1#EN8000 intelligent data acquisition box is used to sample the relative vibration of main transmission reduction device of fixed width pressure and reduction device of carrying roll-type of fixed width.
The 2#EN8000 intelligent data acquisition box is used to sample the relative vibration of main transmission reduction device, herringbone gear base and push down transmission reduction device of R1 rough hot-strip mill.
The 3#EN8000 intelligent data acquisition box is used to sample the relative vibration of two transmission reduction devices of E2 vertical hot-strip mill and push down transmission reduction device of R2 rough hot-strip mill.
The 4#EN8000 intelligent data acquisition box is used to sample the relative vibration of main transmission reduction device and herringbone gear base of F1 and F2 refined hot-strip mills.
The 5#EN8000 intelligent data acquisition box is used to sample the relative vibration of main transmission reduction device and herring bone gear base of F3 and F4 refined hot-strip mills.
The 6#EN8000 intelligent data acquisition box is used to sample the relative vibration of herring bone gear base and cant flywheel of F5, F6 and F7 refined hot-strip mills.
The 7#EN8000 intelligent data acquisition box is used to sample the relative vibration of reduction device of curling carrying roll-type and reduction device of curling reel of 1#, 2# and 3#.
The 8#EN8000 intelligent data acquisition box is used to sample the relative vibration of reduction device of rolling reel and crosscut shearing device in the crosscut line.
The 9#EN8000 intelligent data acquisition box is used to sample the relative vibration of rolling transmission reduction device, main transmission reduction device and curling transmission reduction device in the planisher.
The 10#EN8000 intelligent data acquisition box is used to sample the relative vibration of 1# and2# fans of 1# heating furnace and 1# and 2# fans of 2# heating furnace.
The data server of EN8000 hot-strip mill online monitoring and fault diagnosis system has been installed in the refined hot-strip message room and the upper computer on the computer desk in the refined message room. The cases of 1—10# EN8000 intelligent data acquisition boxes are individually connected with the optical fiber receiver/sender in the case of data server through an optical fiber of 4 optical modes and then are introduced into the CISCO switching device. The upper computer is introduced into CISCO switching device through a No.5 network line so as to form a network.
The EN8000 hot-strip mill online monitoring and fault diagnosis expert system has been operating normally in the 2250mm hot-strip mill of No.2 Hot-strip Plant of Wuhan Steel Group up to now. ENVADA Beijing provides careful and perfect service for the client.
The EN8000 system can ensure advanced technical level in the world and working stably in a long period for your device. The system can make best of important action for safety and economical operation of device.
Cooperating with ENVADA for safety of your device
The problem of safety of device is not solely a technical problem. ENVADA Beijing is the best company in the domain of vibration monitoring and fault diagnosis. She has many experienced experts and her developing section has rich experience accumulated in a long period at your service. If your company has been afflicting with the problem of safety of production and periodic maintenance, cooperating with ENVADA would be your best choice.
