【Ten Years of Rapid Development in Chemical Equipment】China Petrochemical’s first domestically produced Safety Instrumented System (SIS) was successfully tested and approved in Hangzhou from 2661 to 2025
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Give praise and encouragement to the achievements made in China’s chemical engineering technology and equipment; your participation in discussions is the greatest encouragement. **********************【Ten Years of Progress in Chemical Engineering Equipment】Regular updates and summaries are available – feel free to join the discussions: https://bbs.hcbbs.com/thread-3576046-1-1.html ***************** China Petrochemical’s first fully domestically developed Safety Instrumented System (SIS) has passed factory testing in Hangzhou and will be used in the new jet fuel hydrogenation facility built by Sino-Korean Petrochemical. This system achieves full autonomy and control throughout the entire chain, from the core chip to the overall system. It fills the gap in the use of domestic high-end security control equipment in important petrochemical facilities, successfully breaking foreign monopolies. To comprehensively verify the system’s reliability, Sino-Korean Petrochemical, the project construction company, and Zhejiang Zhongkong Technology Co., Ltd. conducted multiple rounds of tests across various scenarios, with the Information and Digital Management Department of the group company participating in these efforts. Test results show that the system features high CPU processing efficiency, good temperature rise control, and rapid operational response. Even in an environment with strong electromagnetic interference, it remains stable in operation, with performance metrics that are superior to those of common non-domestic systems. As the \"pillar of stability\" that ensures the safe and stable operation of equipment, the localization of SIS has always been a focus of attention in the industry. This fully domesticated system has established an independent technical framework that integrates chips, control systems, and operation platforms, all of which are domestically produced. It has passed security certifications from authoritative domestic institutions, enabling it to effectively cope with the harsh operating conditions of high temperature and high pressure.
1. Definition of Safety Instrumented Systems and Related Concepts 1.1 Definition of Safety Instrumented Systems A Safety Instrumented System (SIS) is a control system used to implement one or more safety-related functions. The safety instrument system is designed to address the hazardous situations that arise during the production process. When potential dangerous conditions or various hazards are detected in the production process or equipment, the safety instrument system must issue safety protection commands in accordance with pre-set procedures, thereby bringing the process or equipment back to a safe state. This helps to prevent any hazards from occurring or to mitigate the consequences of accidents, ultimately ensuring the safety of personnel, equipment, and the environment. 1.2 Composition of the Safety Instrumented System The Safety Instrumented System mainly consists of a measurement unit, a logic control unit, and an actuation unit, along with corresponding software. It usually requires communication with basic process control systems (such as DCS systems), together forming the process instrument control system of the production facility. The method for calculating its failure rate is as follows: 1.3 Safety Integrity Level (SIL) The safety integrity level is an internationally recognized \"standard language\" designed to provide a simple way of determining the safety requirements for each safety instrumented loop in a process plant. It is an important security metric that must be adhered to in the design of SIS systems. According to the IEC standard, it is classified from low to high as SIL1-SIL4; the ISA 84.01 standard classifies it as SIL1-SIL3, while the DIN V VDE0804 standard classifies it from low to high as AK1-AI8. The corresponding relationships between them are as follows.
Give praise and encouragement to the achievements made in China’s chemical technology and equipment sector
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Give praise and encouragement to the achievements made in China’s chemical technology and equipment sector
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