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GB/T 44693.2-2024: Process stability of hazardous chemical enterprises - Part 2: Technical specification for control loop performance evaluation and optimization
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Process stability of hazardous chemical enterprises - Part 2: Technical specification for control loop performance evaluation and optimization
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GB/T 44693.2-2024
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Basic data | Standard ID | GB/T 44693.2-2024 (GB/T44693.2-2024) | | Description (Translated English) | Process stability of hazardous chemical enterprises - Part 2: Technical specification for control loop performance evaluation and optimization | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | E09 | | Classification of International Standard | 13.200 | | Word Count Estimation | 30,337 | | Date of Issue | 2024-09-29 | | Date of Implementation | 2025-04-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 44693.2-2024: Process stability of hazardous chemical enterprises - Part 2: Technical specification for control loop performance evaluation and optimization
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ICS 13.200
CCSE09
National Standard of the People's Republic of China
Process stability of hazardous chemical enterprises
Part 2.Technical specifications for control loop performance evaluation and optimization
Released on 2024-09-29
2025-04-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface III
Introduction IV
1 Scope 1
2 Normative references 1
3 Terms and definitions, abbreviations 1
3.1 Terms and Definitions 1
3.2 Abbreviations 3
4 General Requirements 3
5 Basic Information Management 3
6 Performance Evaluation 4
6.1 Scope 4
6.2 Data collection and processing 4
6.3 Single loop evaluation 5
6.4 Comprehensive Assessment 6
7 Performance Diagnosis 6
8 Performance Optimization 6
8.1 Optimization Preparation 6
8.2 Optimizing Execution 6
8.2.1 Maintenance and Repair 6
8.2.2 Improvement of control strategy 7
8.2.3 PID parameter optimization 7
8.3 Optimization Verification 7
9 Verification Methods 7
Appendix A (Informative) Data Sampling Period 8
Appendix B (Informative) Calculation of Control Loop Performance Evaluation Index 9
Appendix C (Informative) Selection of weighting factors for control loop performance scoring 11
Appendix D (Informative) Control loop performance classification 12
Appendix E (Informative) Control loop key performance indicators 13
Appendix F (Informative) Control loop performance fault diagnosis indicators 14
Appendix G (Informative) PID parameter optimization method 19
Appendix H (Informative) Control loop performance evaluation and optimization system 21
Reference 23
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents"
Drafting.
This document is Part 2 of GB/T 44693 "Process stability of hazardous chemical enterprises". GB/T 44693 has been published as follows
part.
--- Part 1.Management guidelines;
--- Part 2.Technical specifications for control loop performance evaluation and optimization.
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document was proposed and coordinated by the National Technical Committee for Standardization of Hazardous Chemicals Management (SAC/TC251).
This document was drafted by. Sinopec Safety Engineering Research Institute Co., Ltd., Chemical Registration Center of the Ministry of Emergency Management, Sinopec National Petrochemical
Project Risk Assessment Technology Center Co., Ltd., Sinopec Qingdao Refining and Chemical Co., Ltd., Sinopec Zhen
Hailianhua Branch, Beijing University of Chemical Technology, Supcon Technology Co., Ltd., Tianjin Bohai Chemical Development Co., Ltd., Wanhua Chemical Group Co., Ltd.
Co., Ltd., Sinochem Blue Sky Group Co., Ltd., Shandong Huaxia Shenzhou New Materials Co., Ltd., China Petroleum Engineering Construction Co., Ltd. North China Branch
Company, Nantong Xingchen Synthetic Materials Co., Ltd., Chongqing Chuanyi Control Valve Co., Ltd., Anhui Jinhe Industrial Co., Ltd., Shandong Haihua
Longxin Materials Co., Ltd., Shanghai Huayi Tianyuan Chemical Logistics Co., Ltd., Zhejiang Quzhou Guibao Chemical Co., Ltd., Ningbo Bohui Chemical Technology
Co., Ltd., Dalian Qikai Pharmaceutical Technology Co., Ltd., Shandong Haiwang Chemical Co., Ltd., Shanxi Fuhengdi New Materials Co., Ltd.
Company, Fujian Jianya Chemical Co., Ltd.
The main drafters of this document are. Yang Zhe, Xu Wei, Gou Chengdong, Gao Xinjiang, He Yadong, Wang Chunli, Li Chuankun, Liu Gehong, Sun Bing, Du Yanhua,
Zhang Zhe, Zhang Jiedong, Zhang Shuai, Chen Xin, Wang Feng, Li Rongqiang, Jiang Weiwei, Yang Yong, Wang Ting, Yang Zhanqiang, Geng Zhiqiang, Yuan Zhuang, Wu Chuanpeng, Lin Yang, Chen Guoxin,
Tong Bufan, Tang Zaifeng, Jiang Jiande, Sun Chuanyi, Chen Qiang, Chen Wu, Zhou Zhongze, Wang Liang, Hu Chuan, Lu Rongbo, Liu Fa'an, Zhang Jian, Liu Xiaoqiang, Yang Le,
Xu Jiade, Zhan Jiangqin, Li Chonghe, Jin Bihua, Zhang Hongxue, Sun Tongjiang, Chai Juncai, Zheng Hua.
Introduction
Process stability is the basis for the sustainable development and innovation of hazardous chemical production enterprises.
The status quo of process management in chemical production enterprises, the construction of GB/T 44693 "Process stability of hazardous chemicals enterprises" comprehensive management system, innovation and upgrading
The first-level process management model builds a scientific, efficient and standardized process operation control mechanism to effectively prevent and resolve hazardous chemicals.
To reduce major safety risks in manufacturing enterprises, it is of great significance to ensure the smooth and safe production process.
GB/T 44693 "Process Stability of Hazardous Chemicals Enterprises" is planned to consist of 6 parts.
--- Part 1.Management guidelines. The purpose is to determine the general principles and relevant requirements that need to be followed for process stability management.
--- Part 2.Technical specification for control loop performance evaluation and optimization. The purpose is to provide control loop performance evaluation and optimization for process stability management.
Provides actionable and verifiable methods for assessment and optimization.
--- Part 3.Standard operating procedures preparation and use specifications. The purpose is to clarify the standard operating procedures in process stability management
(Work Instructions) Principles and requirements that need to be followed in writing and using.
--- Part 4.Start-up process management specifications. The purpose is to determine the requirements for the start-up management of the device in process stability management.
basic principles and working norms.
--- Part 5.Technical specification for process alarm optimization. The purpose is to provide operational
A proven method.
--- Part 6.Technical specifications for key performance indicators. The purpose is to provide operational,
Verifiable indicators and calculation methods.
As a key component of the basic process control system of hazardous chemical production enterprises, the control loop integrates sensors, actuators,
According to the specific needs of the actual production equipment, multiple control loops can be flexibly combined to build a variety of
These control loops continuously monitor process parameters and implement precise adjustments.
Control effectively reduces the interference of parameter fluctuations on the production process, reduces the intervention of manual operation, ensures the stability of production, and improves product
quality and production efficiency, providing a solid guarantee for production safety and helping enterprises achieve the goal of energy conservation and emission reduction.
As the operating cycle lengthens and the operating conditions change, the performance of the control loop tends to gradually decline. Therefore, in order to ensure the control system
To ensure long-term efficient and stable operation, continuous performance evaluation and optimization of the control loop is particularly important, which is to maintain a smooth, safe and environmentally friendly production process.
Necessary measures to ensure efficient operation.
This document effectively regulates the performance evaluation and optimization technology of control loops in hazardous chemical production enterprises and defines the control loop
The terminology and models for performance evaluation and optimization are established, and the recommended technical methods for effectively evaluating and optimizing control loop systems are established, which can effectively guide
The company promptly discovered control loops with performance problems, and diagnosed and optimized the causes of poor performance, improving the control loops of the device.
Performance ensures safe and efficient operation of the production process.
Process stability of hazardous chemical enterprises
Part 2.Technical specifications for control loop performance evaluation and optimization
1 Scope
This document specifies the overall requirements for control loop performance evaluation and optimization technology for hazardous chemical production enterprises, as well as basic information management,
Requirements for performance evaluation, performance diagnosis and performance optimization describe the verification methods.
This document is applicable to the control loop performance evaluation and optimization of basic process control systems of hazardous chemical production enterprises.
Note. In order to avoid confusion, the "hazardous chemical production enterprises" in this document are hereinafter referred to as "enterprises".
2 Normative references
The contents of the following documents constitute essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
GB/T 31497 Information technology security technology Information security management Monitoring, measurement, analysis and evaluation
GB/T 44693.1 Process stability in hazardous chemical enterprises Part 1.Management guidelines
3 Terms, definitions and abbreviations
3.1 Terms and Definitions
The terms and definitions defined in GB/T 44693.1 and the following apply to this document.
3.1.1
control loop
In an automatic control system, the basic control unit consists of sensors, actuators, controllers and signal processors.
Note. The controller automatically adjusts the controller input by comparing the difference between the measured value of the controlled variable from the sensor and the expected value of the system, so that the controlled variable approaches
Expected value.
3.1.2
The ability to quickly, accurately, and stably control the controlled variables to follow the expected values when faced with changes in internal system parameters or external disturbances.
3.1.3
Comprehensively consider the performance of the control loop and the control characteristics, and conduct quantitative or qualitative analysis and evaluation of the control loop performance (3.1.2)
process.
3.1.4
The process of enhancing and improving control loop performance (3.1.2).
3.1.5
The percentage of time in automatic control state (AUTO, CAS, REMOTE, etc.) in the statistical time range.
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