Petrochemical energy isolation and locking management

Energy isolation and locking management is an effective means to control the accidental release of dangerous energy and materials in the process of device inspection and maintenance, start-up and shutdown, and to implement the most basic isolation and protection measures. It has been widely promoted and applied in first-class energy and chemical enterprises at home and abroad.
Group company set issued a “about strengthening the special period of production safety emergency notice” China petrochemical energy isolation management regulations “, clearly put forward to perform to carry out the energy isolation and Lockout tagout management requirements, risk in the process of maintenance, plant shutdown to prevent the accidental release of the energy and material, to carry out the most basic isolation and protective measures, Strengthen the safety of blind plate pumping and plugging, electrical construction and other operations.

At present, mechanical locks are mainly used to lock the energy isolation points in foreign countries, but there are some shortcomings generally:

First, the logical permission control in isolation locking process is insufficient.
Mechanical locks cannot be authorized to open and close according to the isolation lock process. Improper management of mechanical keys may lead to the wrong opening and closing of locks, resulting in incomplete execution of isolation lock control procedures.

Second, the isolation lock state cannot be monitored in real time.

Due to the lack of effective process records in the isolation locking process of mechanical locks, on-site isolation locking operation information and locking status cannot be monitored in real time, and effective statistical analysis and process traceability cannot be carried out.

Third, it is difficult to use, keep and recycle locks and keys.

For the situation that there are many energy isolation points in overhaul operation, each isolation point needs to be equipped with mechanical locks and keys. The number of locks and keys is large, and the collection, storage and recovery management is complex and tedious.

Fourth, the informatization degree of control process is not high.

The operation information and locking status of mechanical locks cannot interact with the job license management system, nor can they share the results of job safety analysis (JSA), nor can they realize the integrated management and control of inspection and maintenance risks.
Therefore, sinopec safety engineering research institute co., LTD., based on the petrochemical enterprise energy isolation and intelligent lock technology and control platform for research and development, research achievements, using industrial iot technology, independent development of petrochemical enterprises energy isolation intelligent control system and locking device, by means of isolation lock operation logic control and real-time monitoring of the process, Ensure the rigid implementation of “Sinopec Energy isolation Management Regulations”.