Method for analyzing safety and reliability of production equipment system based on energy action

Abstract

The embodiment of the invention provides a production equipment system safety reliability analysis method based on energy action, and belongs to the field of system reliability and production safety, the method comprises the following steps: constructing an energy activity model according to equipment bearing energy in a production system, and analyzing the activity rule of the energy activity model to obtain energy influence parameters; according to the energy influence parameters, safety and reliability analysis is carried out on the production system from self-stability, other stability and stability resistance to obtain safety and reliability parameters, and the safety and reliability parameters comprise a self-stability parameter, an anti-interference parameter and an other-stability parameter; according to the method, the problem of safety and reliability evaluation of the production system in the production process is solved, and an effective way is provided for improving the safety and reliability of the production system.

Description

Technical Field

[0001] The present invention relates to the field of system reliability and production safety, and in particular to a method for analyzing the safety reliability of a production equipment system under energy action. Background Art

[0002] The safe and reliable operation of the production system is the basis and premise for enterprises to carry out production activities. According to the energy transfer theory, the essence of an accident is the abnormal effect of energy. The root cause of a large number of production safety accidents is usually related to abnormal and faulty energy transfer activities during the operation of the production system. Existing research rarely analyzes the safety and reliability of production systems from the perspective of energy activities, ignoring the driving effect of energy activities on the functions of production systems and the root cause analysis of production safety accidents, resulting in imperfect control measures for production safety. Summary of the invention

[0003] The purpose of the embodiment of the present invention is to provide a method for analyzing the safety and reliability of a production equipment system under energy effects, which solves the problem of safety and reliability evaluation grading in the production process and improves the safety and reliability of subsequent production activities.

[0004] The present invention proposes a method for analyzing the safety and reliability of a production system under energy action, the method comprising: Building an energy activity model according to the energy carried by the equipment in the production system, and analyzing the activity rules of the energy activity model to obtain energy influencing parameters; According to the energy impact parameter, the safety reliability analysis of the production system is performed from the perspective of self-stability, other-stability and anti-stability to obtain safety reliability parameters, wherein the safety reliability parameters include self-stability parameters, anti-disturbance parameters and other-stability parameters; The functional requirements of the production system are determined based on the safety and reliability parameters to ensure the safety and reliability of the system.

[0005] Optionally, the energy includes material conversion energy, equipment absorption energy, diffusion energy, and dynamic energy flow; The energy activity model is:

[0006] in, For energy, Convert materials into energy, Absorb energy for the device; To diffuse energy; It is a dynamic energy flow.

[0007] Optionally, the material conversion energy is:

[0008] The energy absorbed by the device is:

[0009] The diffusion energy is:

[0010] in, is the quality of the material, is the specific heat capacity of the material, is the temperature change of the material, is the power consumption of the device, t is the working time of the device, represents the heat transfer coefficient, Represents surface area.

[0011] Optionally, the step of performing safety and reliability analysis on the production system from the perspective of self-stability, other-stability and anti-stability according to the energy impact parameter to obtain safety and reliability parameters includes: The energy influencing parameters include equipment reliability, equipment availability, equipment fault detection rate, maximum energy that the equipment can withstand, external disturbance recovery time, energy margin and energy leakage; Determining self-stabilization parameters based on the equipment reliability, equipment availability, and equipment failure detection rate; Determine the interference immunity parameters based on the maximum energy that the device can withstand and the external disturbance recovery time; The stability parameters are determined according to the energy margin and the energy leakage situation.

[0012] Optionally, determining the self-stabilization parameter according to the equipment reliability, equipment availability, and equipment fault detection rate includes:

[0013] Where S is the self-stabilization parameter, For reliability, For availability, is the fault detection rate, is the redundancy, is the i-th factor affecting the self-stability of the system, Factor The upper threshold of

[0014] Optionally, determining the anti-interference parameter according to the maximum energy that the device can withstand and the external disturbance recovery time includes:

[0015] Where I is the noise immunity parameter, is the maximum energy that the device can withstand, is the external disturbance recovery time, For each factor that affects the system immunity, Factor The upper threshold of

[0016] Optionally, determining the stability parameter according to the energy margin and the energy leakage situation includes:

[0017] Among them, H is the stability parameter, is the energy margin, For energy leakage, is the i-th factor affecting the stability of the system, Factor The upper threshold of

[0018] Optionally, determining the functional requirements of the production system according to the safety and reliability parameters includes: When the self-stability parameter, the anti-interference parameter and the hetero-stability parameter exceed the safety threshold range, the energy carrying capacity, production capacity, environmental conditions and monitoring and control safety of the equipment in the production system are analyzed.

[0019] The present invention also proposes a device for analyzing the safety and reliability of a production equipment system under energy action, the device comprising: A first processing module is used to construct an energy activity model according to the energy carried by the equipment in the production system, and to analyze the activity law of the energy activity model to obtain energy impact parameters; A second processing module is used to perform safety and reliability analysis on the production system from the perspectives of self-stability, other-stability and anti-stability according to the energy impact parameter to obtain safety and reliability parameters; The third processing module is used to determine the functional requirements of the production system according to the safety and reliability parameters, so as to ensure the safety and reliability of the system.

[0020] Optionally, the energy includes material conversion energy, equipment absorption energy, diffusion energy, and dynamic energy flow; The energy activity model is:

[0021] in, For energy, Convert materials into energy, Absorb energy for the device; To diffuse energy; It is a dynamic energy flow.

[0022] The present invention discloses a method for analyzing the safety and reliability of a production equipment system under the action of energy, the method comprising: constructing an energy activity model according to the energy carried by the equipment in the production system, analyzing the activity law of the energy activity model to obtain energy impact parameters; according to the energy impact parameters, analyzing the safety and reliability of the production system from the perspective of self-stability, other stability, and anti-stability to obtain safety and reliability parameters, the safety and reliability parameters including self-stability parameters, anti-interference parameters, and other stability parameters; determining the functional requirements of the production system according to the safety and reliability parameters to ensure the safety and reliability of the system. The method analyzes the interactive operation mechanism of the production system operation factors of energy transmission by considering the effect of the energy activity of the production system, analyzes the failure mode and safety of the production system from the perspective of all production factors, constructs an index system of self-stability, other stability, and anti-interference for evaluating the safety and reliability of the operation, solves the problem of safety and reliability evaluation grading in the production process, and improves the safety and reliability of subsequent production activities. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the embodiments of the present invention and constitute a part of the specification. Together with the following specific implementations, they are used to explain the embodiments of the present invention, but do not constitute a limitation on the embodiments of the present invention. In the accompanying drawings: Figure 1 It is a schematic flow chart of a method for analyzing the safety and reliability of a production equipment system under energy action according to the present invention; Figure 2 It is a schematic diagram of material flow classification of the present invention; Figure 3 It is a schematic diagram of a double chain model of energy equipment and materials of the production system of the present invention; Figure 4 It is a schematic diagram of a flow chart of an embodiment of the present invention; Figure 5 is a schematic diagram of comprehensive analysis of production system safety considering energy activities of the present invention; Figure 6 It is a schematic diagram of production safety analysis of a typical chemical plant of the present invention taking into account energy activities; Figure 7 is a schematic diagram of the comprehensive analysis results of the safety of the production system considering the energy activities of the present invention; Figure 8 This is the intention of the present invention to provide a safety and reliability analysis device for a production equipment system under energy action.

[0024] Description of Reference Numerals 100-Production equipment system safety and reliability analysis device based on energy action; 200-first processing module; 300-second processing module; 400-third processing module. DETAILED DESCRIPTION

[0025] The specific implementation of the embodiment of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the embodiment of the present invention, and is not used to limit the embodiment of the present invention.

[0026] It should be noted that the acquisition, transmission, storage, use, and processing of data in the technical solution of this application are in compliance with the relevant provisions of laws and regulations. In the embodiments of this application, some existing solutions in the industry such as certain software, components, and models may be mentioned, which should be considered as exemplary. Their purpose is only to illustrate the feasibility of implementing the technical solution of this application, but it does not mean that the applicant has or will necessarily use the solution.

[0027] Embodiment 1 The present invention provides a method for analyzing the safety and reliability of a production equipment system under energy action, such as Figure 1 As shown, the method includes: step S101 is to construct an energy activity model according to the energy carried by the equipment in the production system, and analyze the activity law of the energy activity model to obtain energy influencing parameters.

[0028] According to a specific implementation method, the energy includes material conversion energy, equipment absorption energy, diffusion energy, and dynamic energy flow; the energy activity model is: ,in, is the energy, i is the process number, Convert materials into energy, Absorb energy for the device; To diffuse energy; is a dynamic energy flow. The material conversion energy is: ; The energy absorbed by the device is: ; The diffusion energy is: ;in, is the quality of the material, is the specific heat capacity of the material, is the temperature change of the material, is the power consumption of the device, t is the working time of the device, represents the heat transfer coefficient, Represents surface area.

[0029] The present invention analyzes the importance and complexity of the interaction between matter and energy in the production system, refines the energy activity model and visualizes the energy activity in the form of energy flow, laying the foundation for abnormal activity energy analysis and safety and reliability analysis.

[0030] Specifically, as a production tool, production equipment relies on energy drive to realize its functions. In the production process, according to the production process requirements, it completes various production tasks through the interaction of materials and energy through multiple process links. This process requires external material and energy input. After multiple process links, along with the transmission, transformation and output of materials and energy in the production system, various materials and energy bodies form material flow and energy flow respectively.

[0031] The production process includes multiple production process links. After external energy is input into the system, in each process link, it receives the transferred energy and material conversion energy from the previous link, and consumes energy to carry out the process.

[0032] In general, in each process link, energy activities are divided into four parts: driving equipment to do work on materials and performing energy exchange and conversion with materials; part of the energy is absorbed by the equipment, generating heat, vibration, noise, etc.; it diffuses into the spatial environment in the form of energy such as heat; and it is transmitted to the next link of the system, forming an interconnected dynamic energy flow to maintain continuous production operations.

[0033] According to a specific implementation mode, The energy activity model of the process is: .in, It represents the energy input into the process, which usually includes the power consumption of the drive motor, heat source, power source, etc. It can be obtained by multiplying power by time: ; Indicates the material conversion energy. If the material absorbs energy, it is represented by a positive value. If the material releases energy, it is represented by a negative value. The temperature change, phase change, chemical reaction, etc. of the material will involve the absorption or release of energy, which can be calculated through thermodynamics and process flow: , Indicates quality, represents the specific heat capacity, Indicates temperature change; Indicates the energy absorbed by the device, which can usually be calculated by the efficiency and power consumption of the device: , Indicates the power consumption of the device; It represents the energy diffused into space, which can be estimated by ambient temperature change, equipment surface temperature, radiation and convection loss, etc. The specific calculation method can be used including heat conduction, convection and radiation processes: , represents the heat transfer coefficient, represents surface area; Indicates the energy transferred to the next link, which can be calculated by the transfer of materials in the system; Indicates the process link.

[0034] The energy activity model of the entire production system is: .in, represents exogenous energy (i.e., the energy input into the production system, which is the sum of the energy of all process links), , As recyclable surplus energy, the surplus energy can be reused through a recovery system (such as waste heat recovery), reducing the system's demand for external energy. , since the remaining energy can be reused, it is represented by a negative sign, Indicates the total number of processes. Indicates the material conversion energy, Indicates that the device absorbs energy, Represents the energy diffused into space.

[0035] In addition, the production system is in a certain environment, and its state during operation is affected by the surrounding environment. The environmental impact includes two aspects: physical environment and spatial environment.

[0036] The physical environment refers to the set of surrounding environmental conditions that affect the production system, including temperature, humidity, vibration, etc., which will have a certain impact on the manufacturing process and operators. These environmental factors depend on the natural environment and the design of the production system itself. Therefore, the energy activity model of environmental changes is obtained: .in, is the energy change within the production system, It is the energy input of the external environment to the manufacturing system. Through the change of the environment, it affects the operation efficiency of the equipment, the conversion efficiency of materials and the overall energy balance of the system. The energy input of the external environment increases the energy consumption of the production system, which may be manifested as additional heat energy or power consumed by the equipment. However, it should be pointed out that this formula represents the energy process, and the specific effect of the environment on the production system cannot be directly reflected. Represents the energy diffused into space.

[0037] The spatial environment is a collection of factors such as the production system structure and spatial layout, including three-dimensional space, personnel gaps, material flow, etc., which will make the operation of production equipment complicated.

[0038] The core of production activities lies in the acquisition, processing, manufacturing and transmission of material objects, thus forming a material flow consisting of raw materials, semi-finished products, products and waste. Each production industry has formed its own characteristic material flow type according to its specific production objects and products (such as Figure 2 The production system can restore the material flow and energy flow to a relatively stable state through its own adjustment mechanism, such as the automatic feedback control system to adjust the equipment power and the adaptive change of material transmission speed, so as to ensure the continuity and stability of the production process.

[0039] In summary, the material flow and energy flow in the production system are analyzed to form the following Figure 3 The double-chain model of energy, equipment and materials in the production system shown lays the foundation for the subsequent theoretical modeling analysis and control methods of safety and reliability of the production system.

[0040] This application discloses a classification analysis of different types of abnormal energy activities related to failure modes. Traditional equipment failure analysis often focuses on a single type or a few related failures for discussion. This method conducts a two-way deep correlation between energy and failures, further combining energy with production equipment functional failures, and more comprehensively revealing the complex relationships hidden behind them.

[0041] By analyzing the abnormal energy activities and failure modes of the production system, the safety and reliability of the production system have been improved. The intrinsic relationship between abnormal energy activities and failure modes has been innovatively analyzed in depth from multiple dimensions. With the help of advanced technical means and analysis methods, a more accurate, comprehensive and forward-looking risk prevention and control system has been built.

[0042] Energy activities in production systems include thermal energy activities, mechanical energy activities, electrical energy activities, kinetic energy activities, chemical energy activities, radiation energy activities, and potential energy activities. The corresponding abnormal energy activities include abnormal temperature rise or fall in equipment or systems, causing abnormal changes in related energy; abnormal energy changes in equipment or systems due to loss of control, excessive vibration or unexpected impact; abnormal energy changes caused by abnormal changes in current or voltage; abnormal energy changes caused by sudden release or suppression of kinetic energy in the system; abnormal energy changes caused by abnormal energy release related to chemical substances or reactions; abnormal energy release of light radiation and electromagnetic radiation; abnormal energy release caused by gravity, pressure and other factors. In general, the binary attributes of energy can be expressed as follows: ,in, Indicates the intensity, Represents the extended quantity. From the above expression, it can be seen that energy is the cumulative effect of the intensity quantity on the corresponding extended quantity. By combining the intensity quantity and the extended quantity, the abnormal activity of energy can be effectively quantified, and various energy activities in the production system can be deeply analyzed. Each energy activity has its corresponding intensity quantity and extended quantity. Through this combination of binary attributes, accurate monitoring and abnormal detection of energy can be achieved, providing a scientific basis for the safety, reliability and efficiency of the production system.

[0043] The above abnormal energy activities are the internal factors that lead to production accidents. They may be generated, stored or released inside the production equipment system, or they may come from the input of the external environment. In the production process, the reasonable control of energy is very important to ensure the stable operation of the equipment system and reliable and safe production. A typical production system can be divided into the following main parts according to its function: (1) Production function: Through a specific combination of equipment and process, core production tasks are efficiently performed, raw materials are converted into products that meet the requirements, and the orderly advancement and precise implementation of the product production process are ensured.

[0044] (2) Energy supply function: Build a complete energy security system that covers multiple energy supply channels such as electricity, heat, and gas, accurately match and continuously meet the diverse needs of various links in the production process for various types of energy, and provide a solid power foundation for the stable development of production activities.

[0045] (3) Monitoring function: With the help of advanced monitoring and control systems, real-time and accurate data collection and in-depth analysis of key parameters in the production process are carried out to detect abnormal conditions in a timely manner and trigger the alarm mechanism. At the same time, the system operation is optimized and adjusted based on the data analysis results to achieve refined management and efficient control of the production process, ensuring that production operations are always in the best operating state.

[0046] The production equipment system must have a complete abnormal energy activity bearing function to keep the energy in the production system in a stable control state. The failure modes of the abnormal energy activity bearing capacity of the general production system are divided into the following categories: (1) Lack of functions: In terms of design, the production equipment system does not have complete abnormal energy activity bearing functions, environmental functions, protection functions, monitoring functions, control functions, etc., and does not meet the safety and reliability requirements.

[0047] (2) Functional failure: Although the abnormal energy activity carrying function has been taken into account during the design stage, these functions may be weakened or fail due to manufacturing or use reasons and may not be able to effectively play the expected role.

[0048] (3) Function failure: During the operation of the equipment system, due to reasons such as process and operating procedures, when production changes, certain abnormal energy activity carrying functions within the system cannot be correctly started, used or functioned, and may even cause malfunctions.

[0049] In general, the most fundamental reason for missing functions is design problems. Due to the existing technical level, the ability of designers, resource conditions and other reasons, the working principle is not scientific and reasonable or the system structure has defects. Functional failure is the impact of factors such as equipment maintenance, production load, and environmental conditions during the production stage, which leads to the performance degradation or failure of system components, manifested as functional failure and performance degradation. Functions are not launched due to technical limitations or equipment performance problems, and these functions fail to start or function normally under certain circumstances.

[0050] By analyzing the transmission and transformation process of matter and energy in the production system, we help determine the boundary conditions for stable operation of the system; by analyzing the physical and spatial environment of the production system, we clarify the impact of external interference factors on the interaction between matter and energy; by studying the changes in the interaction between matter and energy under external interference, we quantify the relationship between interference intensity and system response; by classifying abnormal energy activities and functional failure modes, we clarify the possible unstable states of the system.

[0051] Step S102 is to perform safety reliability analysis on the production system from the perspective of self-stability, other-stability and anti-stability according to the energy impact parameter to obtain safety reliability parameters, wherein the safety reliability parameters include self-stability parameters, anti-disturbance parameters and other-stability parameters.

[0052] According to a specific implementation method, the safety and reliability parameters of the production system are obtained by performing a safety and reliability analysis on the self-stability, the other-stability and the anti-stability according to the energy influencing parameters, including: the energy influencing parameters include equipment reliability, equipment availability, equipment fault detection rate, the maximum energy that the equipment can withstand, external disturbance recovery time, energy margin and energy leakage; the self-stability parameters are determined according to the equipment reliability, equipment availability and equipment fault detection rate; the anti-disturbance parameters are determined according to the maximum energy that the equipment can withstand and the external disturbance recovery time; the other-stability parameters are determined according to the energy margin and energy leakage.

[0053] Specifically, determining the self-stabilization parameter according to the equipment reliability, equipment availability, and equipment fault detection rate includes:

[0054] Where S is the self-stabilization parameter, For reliability, For availability, is the fault detection rate, is the redundancy, is the i-th factor affecting the self-stability of the system, Factor The upper threshold of

[0055] Determining the anti-interference parameter according to the maximum energy that the device can withstand and the external disturbance recovery time includes:

[0056] Where I is the noise immunity parameter, is the maximum energy that the device can withstand, is the external disturbance recovery time, For each factor that affects the system immunity, Factor The upper threshold of

[0057] The determining of the stability parameter according to the energy margin and the energy leakage situation includes:

[0058] Among them, H is the stability parameter, is the energy margin, For energy leakage, is the i-th factor affecting the stability of the system, Factor The upper threshold of

[0059] Specifically, based on the understanding of the functional structure of the production system and the consideration of the interactive relationship between energy activities and the production system and the potential abnormal release of energy, the connotation of the safety and reliability of the production system considering energy activities is analyzed and its theoretical model is constructed.

[0060] The safety and reliability of a production system that takes energy activities into consideration refers to its ability to maintain safe and stable operation during operation, including the ability of the production system to avoid accidents or failures under normal operating conditions, the ability to promptly identify, respond to and recover from abnormal situations, and the ability to ensure that the system energy is not output to the outside to cause accidents.

[0061] The stability, robustness and safety of the equipment system are important indicators of its safety and reliability, which respectively judge the equipment system's ability to maintain stability under normal working conditions, its ability to resist external interference and damage, and its ability to maintain stability under abnormal conditions. The production capacity of the equipment system reflects its stability, that is, it can stably achieve the expected production goals and indicators during the production process; the environmental function reflects the robustness of the equipment system, that is, it can maintain a stable operating state under different environmental conditions; the protection function reflects the safety of the equipment system, that is, it can effectively prevent external destructive factors from causing damage to the system.

[0062] Based on this, the safety and reliability of the production system are mainly reflected in three aspects: self-stability, anti-interference and hetero-stability. Specifically, the self-stability refers to the ability of the production system to self-regulate and operate stably to prevent internal reasons such as failure of abnormal energy activity carrying functions from causing equipment damage and production interruptions. High self-stability means that it can effectively prevent production stoppages caused by fluctuations within the system, so that the system can recover quickly when faults such as failure of abnormal energy activity carrying functions occur within the system, and avoid minor faults from quickly expanding into safety accidents due to energy anomalies. The self-stability of the production system is affected by multiple factors, and can be evaluated from indicators related to system health detection. The theoretical model of the self-stability indicator is as follows:

[0063] in, Reliability refers to the ability of a device to complete its intended function without failure under specified conditions and within a specified time. It is an important indicator for measuring the stability and sustainability of a device during actual use. It is usually described by the failure probability distribution. Common distributions include exponential distribution and Weibull distribution. Availability refers to the ability of a system or device to operate normally and provide scheduled services when needed. It is used to measure the normal working proportion of a device or system over a period of time. It is usually expressed as the ratio of the mean time between failures to the sum of the mean time between failures and the mean time to repair. It indicates the fault detection rate, which refers to the proportion of faults that can be effectively identified and detected during the operation of a system or device, and measures the response speed and accuracy of the detection system to potential faults; Indicates every factor that affects the self-stability of the system; It represents redundancy, reflecting the proportion of redundant resources added to the system to achieve reliability or fault tolerance; The corresponding factor The upper threshold of The larger the value, the higher the self-stability.

[0064] The anti-interference performance refers to the ability of the production system to effectively resist external risks and influences, prevent abnormal production interruptions and equipment damage caused by human errors, external environment and other factors, and indicate the robustness of the system. It can still maintain normal operation in the face of uncontrollable factors, reduce excessive wear or damage to equipment caused by emergencies, effectively respond to sudden external changes, avoid cost waste and production delays caused by shutdowns, and protect the safety of personnel and property. The theoretical model of the anti-interference performance index is as follows:

[0065] in, Indicates the maximum energy that the device can withstand. The larger the value, the more effective the system is in preventing the impact of external energy and reducing risks. It represents the external disturbance recovery time, which refers to how long it takes for the production system to resume normal operation after a risk event occurs; Indicates every factor that affects the self-stability of the system; The corresponding factor The upper threshold of

[0066] The stability of the system is the ability of the production system to ensure that it does not output risks to the outside world, prevent the abnormal release of system energy from causing personal injury, property loss and environmental damage, and reflect the safety design of the system, ensuring that the unstable factors of the system can be controlled within the system and do not affect the surrounding environment or personnel. The theoretical model of the stability index is as follows:

[0067] in, Energy margin refers to the gap between the additional energy (such as electricity, heat energy, mechanical energy, etc.) that the production system can withstand when working and the maximum safe load of the system; Indicates the energy leakage situation, which means that the energy of the leaked part does not exceed the limit value of other equipment protection; Indicates the factors that affect the self-stability of the system; The corresponding factor The upper threshold of The larger the value, the higher the stability. In summary, the conceptual evaluation formula for the safety and reliability of the production system is given as: .

[0068] Step S103 is to determine the functional requirements of the production system according to the safety and reliability parameters, so as to ensure the safety and reliability of the system.

[0069] According to a specific implementation method, the determination of the functional requirements of the production system based on the safety and reliability parameters includes: analyzing the energy carrying capacity, environmental conditions and monitoring and control safety of the equipment in the production system based on the self-stability parameters, anti-interference parameters and hetero-stability parameters, so as to provide the functional requirements of the production system. According to the compliance of the system's self-stability parameters, the functional requirements of the safety and reliability evaluation indicators of the production system when they are within the range of the self-stability parameters are determined from the two aspects of monitoring and control; according to the compliance of the system's anti-interference parameters, the functional requirements of the safety and reliability evaluation indicators of the production system when they are within the range of the anti-interference parameters are determined from the aspect of environmental conditions; according to the compliance of the system's hetero-stability parameters, the functional requirements of the safety and reliability evaluation indicators of the production system when they are within the range of the hetero-stability parameters are determined from the aspect of energy carrying capacity.

[0070] Specifically, from the perspective of the safety and reliability of the production system, this application proposes the requirements for ensuring the safety and reliability functions of the production system. This method systematically integrates self-stability, anti-interference and hetero-stability into the safety and reliability function protection analysis framework of the production system for the first time, providing an innovative theoretical basis for building comprehensive safety and reliability protection requirements. In addition, the risks brought by functional completeness and abnormal energy activity carrying functions are comprehensively considered, and a new protection method is proposed to balance the transmission and constraint of energy. The requirements for the safety and reliability function protection of the production system mainly include the following aspects.

[0071] (1) Monitoring reliability requirements: Through real-time and regular monitoring, the production situation can be fully understood, especially the changes in the system operation status and performance parameters, and timely feedback can be given to the control system to deal with possible accidental release of energy or material reaching a critical state, thereby achieving timely warning and risk control, which can effectively improve self-stability. The monitoring objects cover the following points: 1) Material and connection, shape and appearance of equipment parts. Monitor the material condition and connection status of equipment parts, as well as changes in shape and appearance, and promptly detect possible wear, corrosion, looseness and other problems. For parts that are prone to wear, such as gears and chains in mechanical transmission devices, wear-resistant coatings or regular replacement protection measures can be used; for parts that are prone to corrosion, such as the metal casing of chemical equipment, anti-corrosion paint can be applied or corrosion-resistant materials can be used; for connection parts, anti-loosening nuts, spring washers, etc. are used to ensure a firm connection to ensure the safe and stable operation of equipment parts.

[0072] 2) Key operating indicators of system equipment. The key operating indicators of system equipment are monitored, including flow, temperature, pressure and other parameters, which reflect the operating status and performance of the system equipment, and detect abnormal conditions in a timely manner and make adjustments and controls. For example, for temperature monitoring, high-precision temperature sensors are installed at key heating parts of the equipment, and temperature alarm devices are equipped. When the temperature exceeds the set threshold, cooling equipment such as cooling fans and water cooling systems are automatically started; for pressure monitoring, pressure sensors and safety valves are installed. Once the pressure rises abnormally, the safety valve automatically opens to release pressure to ensure the safe operation of the equipment.

[0073] 3) Changes in environmental conditions. Monitor changes in environmental conditions, including temperature, humidity, air pressure and other factors. Timely discover the impact that changes in environmental conditions may have on equipment and production processes, and take appropriate measures to adjust and respond. For example, in a high-temperature environment, equip the equipment with a heat shield to reduce the amount of heat transferred into the equipment; in a humid environment, perform moisture-proof treatment on the internal circuit of the equipment, such as sealing with sealant, installing a desiccant box, etc., to prevent short-circuit failures.

[0074] (2) Control reliability analysis: To ensure the coordination, safety and reliability of the production system, the production system needs to have the ability to control changes in production conditions and effectively improve self-stability. This control capability is mainly reflected in the following three aspects: 1) Control capability based on changes. Production conditions may change with time, raw materials, environment and other factors. The equipment system should have the ability to control based on these changes, including effective adjustment of dynamic indicators such as energy flow, material flow, and environmental conditions. For example, when the properties of raw materials change, the control system of the equipment automatically adjusts the processing parameters, such as heating temperature, processing speed, etc.; for changes in energy flow, real-time monitoring is carried out through monitoring equipment such as smart meters and flow meters, and then the motor speed is adjusted using a frequency converter to achieve reasonable distribution and utilization of energy and ensure stable operation of the equipment.

[0075] 2) Emergency response capabilities based on dangerous situations. When unexpected situations or dangerous situations occur during production, the equipment system should have emergency response capabilities to safely release the energy in the system through diversion, unloading, etc., thereby eliminating potential dangerous situations and ensuring the safety of personnel and equipment. For example, short-circuit protection devices and overload protection relays are installed in the electrical system. Once a short circuit or overload occurs, the circuit is quickly cut off to prevent electrical equipment from being damaged by excessive current; for hydraulic systems, a relief valve is installed. When the pressure exceeds the set value, the relief valve opens to allow excess hydraulic oil to flow back to the tank to avoid danger caused by excessive system pressure.

[0076] 3) Problem-based compensation processing capabilities. The equipment system needs to have corresponding compensation processing capabilities for abnormal situations or problems that may occur in production. For example, when a sensor fails, the control system of the equipment automatically switches to a backup sensor or uses an estimation algorithm to compensate for the missing data of the sensor based on other relevant parameters to ensure that the equipment can continue to operate normally; for the decrease in accuracy caused by wear of the mechanical parts of the equipment, the processing position can be adjusted through an automatic compensation device or an error correction algorithm can be used to ensure that product quality is not greatly affected.

[0077] (3) Environmental condition stability reliability analysis: Environmental condition stability reliability refers to the ability of the production system to continue to operate normally under different environmental conditions. The safety of the production system is largely affected by various energies in the environment. The physical environment affects the state of the production system, which is essentially energy action, including thermal energy, mechanical energy, electromagnetic energy, etc. The spatial environment affects the operating activities of equipment and personnel, and is an important condition factor affecting energy activities. Therefore, environmental condition reliability analysis is the ability of the production system to withstand various energy changes after environmental changes. It is determined by using various tools to calculate the equipment degradation, thereby effectively improving the anti-interference performance.

[0078] In the analysis of the stability and reliability of the environmental conditions of the production system, the energy aspect covers a variety of forms and is intertwined to affect the operation of the equipment. The high and low temperature changes of thermal energy test the heat resistance and cold resistance of the equipment respectively. At high temperatures, heat dissipation and heat insulation measures ensure that the equipment does not fail due to overheating. At low temperatures, heating and adaptive lubricating oil ensure the normal operation of the equipment. The strong field interference of electromagnetic energy and the electromagnetic compatibility problems between equipment require the use of shielding packaging, reasonable layout, filtering circuits and strict testing to maintain the stability of the electronic components of the equipment and the accuracy of signal transmission. Chemical energy, in different humidity and corrosive environments, through dehumidification, humidification, selection of corrosion-resistant materials, anti-corrosion coatings and regular maintenance, can deal with risks such as circuit short circuits, corrosion, and static electricity accumulation to maintain the reliability and life of the equipment in the chemical environment. Multiple energy factors act on the equipment together, and their response measures complement each other, which is the key to ensuring the stable operation of the production system in a complex energy environment.

[0079] In the analysis of the stability and reliability of the environmental conditions of the production system, the spatial environment plays an indispensable role. The three-dimensional spatial layout determines the installation height, position and spacing of the equipment. Reasonable planning can avoid the difficulty of equipment maintenance, inconvenience of personnel operation and the risk of mutual collision, and at the same time create a suitable space for high-precision equipment to ensure its operating accuracy. The scientific design of personnel gaps and operation channels ensures that personnel have sufficient and unobstructed walking and operation space between equipment, forms a safe and efficient channel network in the multi-equipment area, and reserves a non-interfering operation range for multi-person collaborative operation to improve work efficiency and safety. Material flow path planning effectively separates the material transportation route from the personnel and equipment operation area, and ensures safe and orderly material transportation through special transportation methods and channel settings, combined with the protection and detection of key nodes. The material storage area is reasonably laid out according to the material characteristics and matches the production system capacity, which helps the production system to operate stably and reliably in the spatial dimension from multiple aspects. The various elements of the spatial environment are interrelated and influence each other, and jointly build a spatial infrastructure for the stable operation of the production system.

[0080] (4) Energy carrying reliability analysis: In the production system, components are interconnected to form a complex structure, which can be divided into two categories according to their functions: energy bodies and constraint bodies. The energy body is responsible for the transmission, conversion and storage of energy, while the constraint body ensures that energy flows safely along a specific path within the system. The input of external energy sources must meet the needs of processing raw materials into products, but cannot exceed the rated design value of the system. Generally, there is an optimal value for the input of external energy, and this optimal value is equal to the rated design value of the equipment, which puts the equipment in the best operating state, thereby effectively improving its stability. Specifically include: 1) Energy activity carrying capacity. The energy carrying capacity of the production system determines the product production capacity, and the system's energy carrying capacity depends on the system hardware structure (strength) performance and reliability. In order to improve the energy carrying capacity, the key structural components of the equipment are made of high-strength materials, such as alloy steel for container walls that withstand greater pressure; for energy transmission components, such as cables and transmission shafts, appropriate specifications and materials are selected according to their energy carrying requirements, and regular strength testing and maintenance are carried out to ensure that they can transmit energy safely and reliably.

[0081] 2) Energy activity constraint capability. Safe production requires coordination between energy flow, system and material flow during system operation, maximizing the use of external energy and constraining it so that the equipment is in the best operating state. For example, in electrical systems, current limiters, voltage stabilizers and other equipment are installed to limit excessive current and stabilize voltage to ensure the safe transmission and rational use of electrical energy within the equipment; in hydraulic systems, throttle valves, speed regulating valves and other equipment are used to control the flow and flow rate of hydraulic oil so that hydraulic energy is transmitted according to predetermined paths and parameters to ensure the smoothness and reliability of equipment operation.

[0082] Embodiment 2 like Figure 4 As shown, the present invention proposes an example of a chemical system, and its steps include: Step 1 is to analyze the material interaction and energy interaction of the production system. Chemical production systems are classified into core production systems and auxiliary systems, and are further subdivided into multiple subsystems. The core production system of the chemical system is the key part, which is directly related to the core production process of the product, and mainly includes the following subsystems: Reaction system: responsible for the chemical reaction, including reactors, catalysts and their control systems. The design and optimization of the reaction system directly affects the quality and yield of the product; separation system: used to separate the desired products and by-products from the reaction mixture. Commonly used separation technologies include distillation, extraction, filtration, etc.; processing system: post-processing the separated products, such as drying, mixing, packaging, etc., to meet market demand. The auxiliary system provides support and guarantee for the core production system to ensure the smooth progress of the production process. It mainly includes the following subsystems: Energy supply system: responsible for providing the required electricity, heat and gas, including boilers, generators, compressors and other equipment to ensure that the energy demand in the production process is met; Control and automation system: used to monitor the key parameters in the production process in real time, conduct data collection, alarm management and system optimization to achieve efficient control of the production process; Maintenance and support system: responsible for the daily maintenance and overhaul of equipment to ensure the reliability and stability of production equipment. At the same time, it provides necessary safety measures to reduce the risk of accidents; Logistics and material management system: responsible for the procurement, storage, transportation and distribution of raw materials, ensuring the timely supply of raw materials required for production and the smooth circulation of products.

[0083] The energy activity of the heat exchanger includes the heat released by the heat source fluid, the energy absorbed by the cold source fluid in the heat exchanger, etc. The energy activity of the reactor comes from the energy input from the external source, including the energy required for heating, cooling or stirring, absorbing energy, generating heat, vibration, etc. During the reaction, heat or other forms of energy are diffused to the surrounding environment. The energy activity of the storage tank is usually the energy brought by the fluid flowing from the reactor into the storage tank. In addition, the temperature and humidity of the surrounding environment may affect the energy efficiency of the reactor and the energy storage capacity of the storage tank. The layout and design of the reactor and storage tank will affect the flow path and efficiency of the energy. The optimized layout can reduce energy loss and improve energy utilization. For example, higher temperatures may lead to faster reaction rates, thereby affecting the energy input and output of the reactor.

[0084] Step 2 is the analysis of abnormal energy activities and failure modes of the production system. In chemical reactors, conductive energy activities are mainly reflected in the transfer of heat and the movement of fluids during the reaction process. For example, in the reactor, heat is transferred from the heater to the reactants, or the heat generated by the reaction is transferred to the cooling medium through the cooling system. In the reactor, the catalyst converts the input chemical energy into thermal energy and chemical energy by promoting the reaction. The reactants are converted into products during the reaction, and the energy is stored and released in different forms. The gas or heat generated by the reaction can be used or converted into other forms of energy. In the storage tank, the stored liquid ammonia releases heat in an exothermic reaction, or absorbs heat in an endothermic reaction. The pump converts electrical energy into mechanical energy to drive the operation. It can be seen that the above energy activity locations are the objects that need to be focused on, and they may all cause corresponding failures. Therefore, it is necessary to verify the corresponding functions to ensure the safe operation of the production system.

[0085] Step 3 is to analyze the safety and reliability of the production system considering energy activities. A comprehensive analysis of the safety of the production system is conducted from the dimensions of self-stability, anti-interference and hetero-stability, and the energy constraints in the safety and reliability function are analyzed from four aspects: monitoring reliability, control reliability, environmental condition stability reliability and energy carrying reliability, and the corresponding guarantee requirements are given (the analysis results are shown in Figure 2). Figure 5 as shown).

[0086] Step 4 is to analyze the safety and reliability function assurance requirements of the production system. Select a process in the chemical system that includes a reactor, heat exchanger, pump and storage tank for practical analysis (the results are as follows: Figure 6 as shown).

[0087] Based on this, the application of the safety reliability analysis method of a production system under a certain energy effect in a certain process of a chemical system is completed (the analysis results are as follows Figure 7 as shown).

[0088] Embodiment 3 The present invention also proposes a production equipment system safety reliability analysis device based on energy action, such as Figure 8 As shown, the device 100 for analyzing the safety and reliability of a production equipment system under energy action includes: a first processing module 200, which is used to construct an energy activity model according to the energy carried by the equipment in the production system, and analyze the activity law of the energy activity model to obtain energy impact parameters; a second processing module 300, which is used to analyze the safety and reliability of the production system from the perspective of self-stability, other-stability and anti-stability according to the energy impact parameters to obtain safety and reliability parameters; a third processing module 400, which is used to determine the functional requirements of the production system according to the safety and reliability parameters, so as to ensure the safety and reliability of the system.

[0089] The energy includes material conversion energy, equipment absorption energy, diffusion energy, and dynamic energy flow; the energy activity model is: ,in, For energy, Convert materials into energy, Absorb energy for the device; To diffuse energy; It is a dynamic energy flow.

[0090] The device considers the role of energy activities in the production system, analyzes the interactive operation mechanism of the production system operating factors of energy transfer, analyzes the failure mode and safety of the production system from the perspective of all production factors, and constructs an indicator system such as self-stability, hetero-stability and anti-interference for evaluating the safety and reliability of operation. It solves the problem of safety and reliability evaluation grading in the production process and improves the safety and reliability of subsequent production activities.

[0091] The present invention provides a method for analyzing the safety and reliability of a production equipment system under the action of energy, the method comprising: constructing an energy activity model according to the energy carried by the equipment in the production system, analyzing the activity law of the energy activity model to obtain energy impact parameters; according to the energy impact parameters, analyzing the safety and reliability of the production system from the perspective of self-stability, other stability, and anti-stability to obtain safety and reliability parameters, the safety and reliability parameters including self-stability parameters, anti-interference parameters, and other stability parameters; determining the functional requirements of the production system according to the safety and reliability parameters to ensure the safety and reliability of the system. The method considers the role of energy activity in the production system, analyzes the interactive operation mechanism of the production system operation factors of energy transmission, analyzes the failure mode and safety of the production system from the perspective of all production factors, constructs an index system of self-stability, other stability, and anti-interference for evaluating the safety and reliability of the operation, solves the problem of safety and reliability evaluation grading in the production process, and improves the safety and reliability of subsequent production activities.

[0092] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0093] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0094] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0095] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process in the computer or other programmable device. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0096] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0097] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0098] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0099] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0100] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.

Claims

1. A safety reliability analysis method for production equipment system based on energy action, characterized in that: The method includes: Building an energy activity model according to the energy carried by the equipment in the production system, and analyzing the activity rules of the energy activity model to obtain energy influencing parameters; According to the energy impact parameter, the safety reliability analysis of the production system is performed from the perspective of self-stability, other-stability and anti-stability to obtain safety reliability parameters, wherein the safety reliability parameters include self-stability parameters, anti-disturbance parameters and other-stability parameters; The functional requirements of the production system are determined based on the safety and reliability parameters to ensure the safety and reliability of the system.

2. The method according to claim 1, characterized in that The energy includes material conversion energy, equipment absorption energy, diffusion energy, and dynamic energy flow; The energy activity model is: in, For energy, Convert materials into energy, Absorb energy for the device; To diffuse energy; It is a dynamic energy flow.

3. The method according to claim 2, characterized in that The material conversion energy is: The energy absorbed by the device is: The diffusion energy is: in, is the quality of the material, is the specific heat capacity of the material, is the temperature change of the material, is the power consumption of the device, t is the working time of the device, represents the heat transfer coefficient, Represents surface area.

4. The method according to claim 1, characterized in that: The safety reliability parameters are obtained by performing safety reliability analysis on the production system from the perspectives of self-stability, other-stability and anti-stability according to the energy impact parameters, including: The energy influencing parameters include equipment reliability, equipment availability, equipment fault detection rate, maximum energy that the equipment can withstand, external disturbance recovery time, energy margin and energy leakage; Determining self-stabilization parameters based on the equipment reliability, equipment availability, and equipment failure detection rate; Determine the interference immunity parameters based on the maximum energy that the device can withstand and the external disturbance recovery time; The stability parameters are determined according to the energy margin and the energy leakage situation.

5. The method according to claim 4, characterized in that The determining of the self-stabilization parameter according to the equipment reliability, equipment availability, and equipment fault detection rate includes: Where S is the self-stabilization parameter, For reliability, For availability, is the fault detection rate, is the redundancy, is the i-th factor affecting the self-stability of the system, Factor The upper threshold of 6. The method according to claim 4, characterized in that Determining the anti-interference parameter according to the maximum energy that the device can withstand and the external disturbance recovery time includes: Where I is the noise immunity parameter, is the maximum energy that the device can withstand, is the external disturbance recovery time, For each factor that affects the system immunity, Factor The upper threshold of 7. The method according to claim 4, characterized in that The determining of the stability parameter according to the energy margin and the energy leakage situation includes: Among them, H is the stability parameter, is the energy margin, For energy leakage, is the i-th factor affecting the stability of the system, Factor The upper threshold of 8. The method according to claim 1, characterized in that Determining the functional requirements of the production system according to the safety and reliability parameters includes: The energy carrying capacity, environmental conditions and monitoring and control safety of the equipment in the production system are analyzed based on the self-stability parameters, anti-interference parameters and hetero-stability parameters.

9. A device for analyzing the safety and reliability of a production equipment system under energy action, characterized in that: The device includes: A first processing module is used to construct an energy activity model according to the energy carried by the equipment in the production system, and to analyze the activity law of the energy activity model to obtain energy impact parameters; A second processing module is used to perform safety and reliability analysis on the production system from the perspectives of self-stability, other-stability and anti-stability according to the energy impact parameter to obtain safety and reliability parameters; The third processing module is used to determine the functional requirements of the production system according to the safety and reliability parameters, so as to ensure the safety and reliability of the system.

10. The device according to claim 9, characterized in that The energy includes material conversion energy, equipment absorption energy, diffusion energy, and dynamic energy flow; The energy activity model is: in, For energy, Convert materials into energy, Absorb energy for the device; To diffuse energy; It is a dynamic energy flow.

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