Tank field alarm grading safety management method

Abstract

The invention relates to the field of dangerous chemicals, in particular to a tank field alarm grading safety management method, which comprises the following steps: acquiring real-time operation parameters of production operation of stored and turnover dangerous chemicals; evaluating and selecting alarm parameters according to the risk quantized values of the real-time operation parameters, and dividing alarm grades according to the risk quantized values to form an alarm ledger containing information working conditions; according to the working condition alarm ledger, inputting risk quantized values for corresponding alarm parameters in a DCS system, and performing character labeling of different alarm levels and alarm acousto-optic setting; according to the tank field alarm grading safety management method provided by the invention, corresponding early warning can be carried out according to the alarm grade, the workload of workers is reduced, the efficiency and accuracy of safety monitoring management of the tank field are improved, accidents are avoided, and the safety of the tank field is improved. And personnel and property safety is guaranteed.

Description

Technical Field

[0001] The present invention belongs to the field of hazardous chemicals, and in particular relates to a tank area alarm classification safety management method. Background Art

[0002] As the petrochemical industry expands, tank farm safety management becomes increasingly important. However, traditional tank farm alarm systems typically only provide a single level of alert. This leads to a high volume of alarms and frequent alerts, making operators prone to complacency and leading to frequent safety incidents.

[0003] A DCS, or Distributed Control System, is a new type of computer control system. Compared to traditional centralized control systems, it offers both decentralized control and centralized management. Based on microprocessors, DCS systems employ the design principle of decentralized control functions and centralized display and operation, achieving both decentralized autonomy and integrated coordination.

[0004] Therefore, there is an urgent need for a tank area alarm method that can carry out graded management according to the degree of danger. Summary of the Invention

[0005] In order to solve the problem that the existing tank area alarm method usually only provides a single level of alarm, the number of alarms is extremely large, the alarms are frequent, each alarm must be recorded, and the record volume is large. Operators are very likely to become tired of and careless about the alarms, which may lead to untimely alarm handling, tank area safety accidents, and endanger the lives of workers. The present invention provides a tank area alarm hierarchical safety management method, which can provide corresponding early warnings according to the alarm level, reduce the workload of workers, improve the efficiency and accuracy of tank area safety monitoring and management, avoid accidents, and ensure the safety of people and property.

[0006] The technical solutions of the present invention are as follows:

[0007] A tank area alarm hierarchical safety management method includes the following steps:

[0008] Step 1: Obtain real-time operating parameters of the production and operation of storage and turnover hazardous chemicals;

[0009] Step 2: Select alarm parameters based on the risk quantification value of real-time operating parameters, and divide alarm levels according to their risk quantification values ​​to form an alarm log containing information conditions;

[0010] Step 3: Enter the risk quantification value of the corresponding alarm parameter in the DCS system according to the working condition alarm record, and make text labels for different alarm levels and set alarm sound and light;

[0011] Step 4: If an operating parameter alarm occurs during the tank farm's production operation, take appropriate action based on the alarm level.

[0012] Preferably, the alarm levels include emergency alarm, important alarm and general alarm.

[0013] Preferably, step 4 is specifically as follows: if the current alarm level is an emergency alarm, it means that the alarm parameters can affect the normal and safe operation of the tank farm, and the operator needs to take emergency measures immediately;

[0014] If the current alarm level is a major alarm, it means that there is a significant change in the production operation parameters or status, and the operator needs to take appropriate measures or pay special attention;

[0015] If the current alarm level is a general alarm, it means that if the current alarm is not properly handled for a long time, it may affect the production and operation of the tank area and needs to be handled in a short time.

[0016] Preferably, the information condition includes alarm parameters, bit numbers, names, alarm values ​​and alarm levels.

[0017] Preferably, the alarm levels are divided according to their risk quantification values, specifically: professional technicians classify all alarms, combine risk identification methods, and determine the importance of alarms according to the alarm protection scenario.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention provides multi-level alarm classification and can issue corresponding early warnings according to the alarm level, thereby reducing the workload of staff, improving the efficiency and accuracy of tank area safety monitoring and management, avoiding accidents, and ensuring the safety of personnel and property. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the alarm record of the present invention;

[0021] Figure 2 Diagram of steps for organizing alarm records of different levels in the tank area; DETAILED DESCRIPTION

[0022] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] See also Figure 2 A tank area alarm hierarchical safety management method includes the following steps:

[0024] Step 1: Obtain real-time operating parameters of the production and operation of storage and turnover hazardous chemicals;

[0025] Step 2: Select alarm parameters based on the risk quantification value of real-time operating parameters, and divide the alarm levels according to their risk quantification values;

[0026] Step 3: Create an alarm log containing information conditions;

[0027] Step 4: Enter the risk quantification value of the corresponding alarm parameter in the DCS system according to the working condition alarm record, and make text labels for different alarm levels and set alarm sound and light;

[0028] Step 5: If an operating parameter alarm occurs during the tank farm's production operation, take appropriate action based on the alarm level.

[0029] In one embodiment of the present invention, the alarm levels include emergency alarm, important alarm and general alarm.

[0030] In one embodiment of the present invention, step 4 specifically includes: if the current alarm level is an emergency alarm, it means that the alarm parameters can affect the normal and safe operation of the tank farm, and the operator needs to take emergency measures immediately;

[0031] Emergency alarms are alarms for serious events, such as the liquid level, pressure, temperature and other parameters of storage tanks in the first-level major hazardous source tank area. For example, the high-high alarm value of the liquid level of a liquefied petroleum gas ball tank is 13.25m, the low-low alarm value is 2.2m, the high pressure alarm value is 1.2MPa, the low pressure alarm value is 0.3MPa, the high-high temperature alarm value is 40℃, and the low-low temperature alarm value is 5℃. Operators are required to take emergency measures immediately, otherwise serious consequences may occur.

[0032] If the current alarm level is a major alarm, it means that there is a significant change in the production operation parameters or status, and the operator needs to take appropriate measures or pay special attention;

[0033] If the current alarm level is a general alarm, it means that if the current alarm is not properly handled for a long time, it may affect the production and operation of the tank area and needs to be handled in a short time.

[0034] When an alarm is sounded, an important alarm is an important event alarm, and there are important changes in production operation parameters or status, such as the temperature, pressure, and other parameters of the storage tanks in the second and third level major hazardous source tank areas (the high-high alarm value of the liquid level of the xylene storage tank is 14.7m, the low-low alarm value is 2.3m, the high-pressure alarm value is 1.9kPa, the low-low alarm value is -0.3kPa, the high-high alarm value of the temperature is 45℃, and the low-low alarm value is 15℃), which requires operators to take appropriate measures or pay special attention.

[0035] General alarms are alarms other than emergency alarms and important alarms, such as pump outlet pressure and current (the high-high alarm value for fuel oil delivery pump outlet pressure is 1.4MPa, the low-low alarm value is 1.1MPa, and the high-high alarm value for current is 191.6A). If the alarm is not properly handled for a long time, it may affect the normal operation of the enterprise.

[0036] In the above case, the high-high alarm value or high alarm value means that if the value is exceeded, an emergency alarm will be triggered. The low-low pressure alarm value or low alarm value means that if the pressure is lower than the value, an emergency alarm will be triggered. The descriptions of high-high and low-low are common adjectives in the field of tank area technology. Generally, high-low alarms can be set for non-important purposes. High-high alarms, high, low and low-low alarms need to be set for purposes that have a great impact on the process.

[0037] See also Figure 1 In one embodiment of the present invention, the information condition includes alarm parameters, bit numbers, names, alarm values ​​and alarm levels.

[0038] In one embodiment of the present invention, the classification of alarm levels according to their risk quantification values ​​is specifically as follows: professional technicians classify all alarms, combine risk identification methods, and determine the importance of alarms according to the alarm protection scenario.

[0039] Specifically, in an embodiment of the present invention, the risk identification method may be a risk identification method such as Hazard and Operability Analysis (HAZOP) or Layer of Protection Analysis (LOPA).

[0040] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention's description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A tank area alarm hierarchical safety management method, characterized in that: The steps include: Step 1: Obtain real-time operating parameters of the production and operation of storage and turnover hazardous chemicals; Step 2: Select alarm parameters based on the risk quantification value of real-time operating parameters, and divide alarm levels according to their risk quantification values ​​to form an alarm log containing information conditions; Step 3: Enter the risk quantification value of the corresponding alarm parameter in the DCS system according to the working condition alarm record, and make text annotations for different alarm levels and alarm sound and light settings; Step 4: When an operating parameter alarm occurs during the production operation of the tank area, corresponding processing is performed according to the alarm level.

2. A tank area alarm hierarchical safety management method according to claim 1, characterized in that: The alarm levels include emergency alarm, important alarm and general alarm.

3. A tank area alarm hierarchical safety management method according to claim 2, characterized in that: Step 4 is specifically as follows: if the current alarm level is an emergency alarm, it means that the alarm parameters can affect the normal and safe operation of the tank farm, and the operator needs to take emergency measures immediately; If the current alarm level is a major alarm, it means that there is a major change in the production operation parameters or status, and the operator needs to take appropriate measures or pay special attention; If the current alarm level is a general alarm, it means that if the current alarm is not properly handled for a long time, it may affect the production and operation of the tank area and needs to be handled in a short time.

4. A tank area alarm hierarchical safety management method according to claim 1, characterized in that: The information condition includes alarm parameters, bit numbers, names, alarm values ​​and alarm levels.

5. A tank area alarm hierarchical safety management method according to claim 1, characterized in that: The classification of alarm levels according to their risk quantification values ​​is specifically as follows: professional technicians classify all alarms, combine risk identification methods, and determine the importance of alarms according to the alarm protection scenarios.

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