Sharing of operation demonstration videos for e*da Company’s internationally renowned SIL calculation software
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**The document \"An Jian Zong Guan San 116\" issued by the General Administration of Work Safety sets out specific requirements for the evaluation of Safety Instrumented Systems (SIS). The main points are as follows: Fully recognize the importance of strengthening the management of chemical process safety instrument systems; enhance the foundational work related to such system management; further improve the management of safety instrument systems throughout their entire life cycle (a key focus); pay close attention to the management of other related instrument protection measures; accelerate the standardization of safety instrument system management for new projects from the outset; actively promote the evaluation of existing safety instrument systems; new chemical processing facilities and hazardous chemical storage installations that fall under the category of “two key types and one major type” must be designed with safety instrument systems that meet the required standards. The in-service unit shall complete the assessment and improvement of its safety instrumented system by the end of 2019. Additionally: New old installations and new projects that do not have safety instrumented systems in place or that have not undergone SIL classification will not be issued a new \"Work Safety License.\" The methods for SIL verification include: 1. Using a simplified block diagram approach to calculate the SIL level of the safety instrumented system. 2. Use fault tree analysis to calculate the SIL level of the safety instrumented system. 3. Use the Markov algorithm to determine the SIL level of the safety instrumented loop. Among them, the Markov model algorithm has advantages such as accurate computation, sequential correlation, dynamic reflection, low dependence between devices, and thorough consideration of all details. However, Markov models are complex and must be implemented using software. When choosing SIL verification software, you can use the functions and calculation results of the exSILenia software shown in this video to verify that the software being used meets the requirements.
exSILentia software is currently the most recognized and widely used SIL calculation tool in this field. This video provides an introduction to the operation of exSILentia software, covering the following topics: 1) The PFDavg (average probability of dangerous failure under specified conditions) for the 1oo1, 1oo2, and 2oo3 voting logic in devices of the same type; 2) The 1oo2 voting logic for devices of different types, that is, the calculation process involving the use of sensors or actuators of various types for voting purposes. 3. Demonstration of voting logic operations for multiple sets of devices. Logical modes for multiple sets of devices are used less frequently; for example, there are two sets of sensors: one set of pressure sensors (1oo1) and one set of temperature sensors (1oo2), and these two sets of sensors undergo a voting logic verification process based on 1oo2.
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:Lol, welcome everyone to communicate and discuss. At present, the development of SIS systems in China is still in its initial stage……
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