CN112783101A - Storage, dangerous chemical tank area safety risk early warning method, equipment and device - Google Patents
Storage, dangerous chemical tank area safety risk early warning method, equipment and device Download PDFInfo
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Abstract
The invention discloses a safety risk early warning method, equipment and a device for a storage and a dangerous chemical tank area, wherein the method comprises the following steps: determining the basic risk level of each chemical enterprise according to the major dangerous source grading score of the dangerous chemicals in the dangerous chemical tank area of each chemical enterprise; acquiring alarm data of preset monitoring variables of a dangerous chemical tank area in real time; generating emergency alarm data when the alarm data accord with a first preset rule; updating alarm historical data of the dangerous chemical tank area according to the alarm data and/or the emergency alarm information; regularly counting and calculating alarm historical data; and calculating the safety production risk early warning index of the chemical industry enterprise according to a second preset rule by taking the basic risk grade and the current early warning value as parameters. The invention can automatically and accurately reflect the actual risk condition of the dangerous chemical tank field in time, and improves the government's management effect on the safety production risk of chemical enterprises.
Description
Technical Field
The invention relates to the field of industrial control, in particular to a safety risk early warning method, equipment and a device for a storage and a dangerous chemical tank area.
Background
The hazardous chemical tank area in the chemical enterprises has the characteristics of high risk, toxicity, harm, flammability and explosiveness, and once an accident occurs, serious harm can be caused to the society and the environment, so that economic loss is caused, and negative social effect is generated.
In order to manage and supervise the safety risks of dangerous sources such as dangerous chemical tank areas, the prior art (patent CN 104766160A) discloses a safety production diagnosis and early warning system based on inherent danger levels of enterprises, which diagnoses and early warns the safety risks of the dangerous sources by setting a multi-level and multi-index mode (4 first-level indexes, 19 second-level indexes and 214 third-level indexes).
The inventor finds that in the technical scheme, the data to be acquired are various, the early warning items are too many, and the results can be acquired only by analyzing and judging the early warning information by professional personnel, so that the method is not suitable for broad-spectrum management and supervision of safety risks of numerous dangerous sources in the jurisdiction by government departments.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to improve the timeliness and effectiveness of the government safety supervision department on the safety production risk supervision of the chemical enterprises.
The invention provides a dangerous chemical tank field safety risk early warning method, which comprises the following steps:
s11, determining the basic risk level of each chemical enterprise according to the dangerous chemical major hazard source grading score of the dangerous chemical tank area of each chemical enterprise;
s12, acquiring alarm data of preset monitoring variables of the dangerous chemical tank area in real time; the preset monitoring variables comprise the temperature, pressure, liquid level, toxic and harmful gases and combustible gases of a major hazard source of the hazardous chemical tank area;
s13, generating emergency alarm data when the alarm data accord with a first preset rule; updating alarm historical data of the dangerous chemical tank area according to the alarm data and/or the emergency alarm information;
s14, regularly counting and calculating the alarm historical data, including: generating a current early warning value of the dangerous chemical tank area according to numerical values of the quantity, frequency and duration of alarm data and emergency alarm data in the alarm historical data and respective weights of the numerical values;
and S15, calculating the safety production risk early warning index of the chemical industry enterprise according to a second preset rule by taking the basic risk level and the current early warning value as parameters.
In the present invention, the generating of the current warning value of the hazardous chemical tank area according to the numerical values of the number, frequency and duration of alarm data and emergency alarm data in the alarm history data and their respective weights includes:
respectively calculating a process control index and a tank area leakage alarm index of the major hazard source according to the alarm historical data; the process control index and the tank leakage alarm index are all comprehensively determined by daily average alarm frequency score, disturbance rate score, repeated alarm point position score, alarm point position ratio score, average alarm elimination duration score and alarm elimination disposal and time rate score.
In the present invention, the process control indexes include:
and the temperature and the pressure of the normal pressure tank and the LNG spherical tank as well as the height and the height of the liquid level of the normal pressure tank and the liquid level of the LNG spherical tank are alarmed.
In the invention, the tank field leakage alarm index comprises:
and toxic and harmful gas alarm and combustible gas alarm.
In the present invention, the calculating the safety production risk early warning index of the chemical industry enterprise according to a second preset rule with the basic risk level and the current early warning value as parameters includes:
s151, dividing the scores of the major hazard source classification of the dangerous chemicals into a plurality of basic risk grades in advance, and determining corresponding correction coefficients according to the basic risk grades; presetting a corresponding relation between the current early warning value and current early warning indexes of a plurality of current early warning grades;
s152, calculating a corresponding current early warning index according to the current early warning value obtained in real time;
s153, calculating a real-time safety production risk early warning index of the chemical enterprise according to a preset formula;
the preset formula comprises:
R＝γR·TR
in the formula: the R is a safety production risk early warning index of the dangerous chemical tank area; the gamma isRA correction factor determined according to the base risk level; the T isRAnd the index is the current early warning grade index.
In the present invention, the determining the classification scores of the major hazard sources of hazardous chemicals of each hazardous chemical tank area respectively comprises:
when the hazardous chemical tank farm includes a plurality of significant hazard sources, the highest hazardous chemical significant hazard source ranking score is the criterion.
In another aspect of the present invention, there is also provided a hazardous chemical tank farm safety risk early warning device, comprising:
the system comprises a danger source grading unit, a risk source grading unit and a risk source grading unit, wherein the danger source grading unit is used for determining the basic risk grade of each chemical enterprise according to the major danger source grading score of the dangerous chemicals in the dangerous chemical tank area of each chemical enterprise;
the alarm receiving unit is used for acquiring alarm data of preset monitoring variables of the dangerous chemical tank area in real time; the preset monitoring variables comprise the temperature, pressure, liquid level, toxic and harmful gases and combustible gases of a major hazard source of the hazardous chemical tank area;
the data processing unit is used for generating emergency alarm data when the alarm data accord with a first preset rule; updating alarm historical data of the dangerous chemical tank area according to the alarm data and/or the emergency alarm information;
the data analysis unit is used for regularly counting and calculating the alarm historical data and comprises the following steps: generating a current early warning value of the dangerous chemical tank area according to numerical values of the quantity, frequency and duration of alarm data and emergency alarm data in the alarm historical data and respective weights of the numerical values;
and the risk early warning generation unit is used for calculating the safety production risk early warning index of the chemical enterprise according to a second preset rule by taking the basic risk level and the current early warning value as parameters.
In the present invention, the risk early warning generation unit includes:
the grade division module is used for dividing the grading values of the major hazard sources of the dangerous chemicals into a plurality of basic risk grades in advance and determining corresponding correction coefficients according to the basic risk grades; presetting a corresponding relation between the current early warning value and current early warning indexes of a plurality of current early warning grades;
the grade value calculation module is used for calculating a corresponding current early warning index according to the current early warning value obtained in real time;
the result generation module is used for calculating the real-time safety production risk early warning index of the chemical enterprise according to a preset formula;
the preset formula comprises:
R＝γR·TR
in the formula: the R is a safety production risk early warning index of the dangerous chemical tank area; the gamma isRA correction factor determined according to the base risk level; the T isRAnd the index is the current early warning grade index.
In the invention, the process control indexes comprise the temperature and the pressure of the normal pressure tank and the LNG spherical tank, and the high-high and low alarms of the liquid level of the normal pressure tank and the liquid level of the LNG spherical tank;
the tank area leakage alarm indexes comprise toxic and harmful gas alarm and combustible gas alarm.
In another aspect of the embodiment of the present invention, there is also provided a memory including a software program, the software program being adapted to execute the steps of the above-mentioned hazardous chemical tank farm safety risk early warning method by a processor.
In another aspect of the embodiments of the present invention, there is also provided a hazardous chemical tank farm safety risk early warning device, which includes a computer program stored on a memory, where the computer program includes program instructions, and when the program instructions are executed by a computer, the computer executes the method in the above aspects, and achieves the same technical effect.
Compared with the prior art, the invention has the following beneficial effects:
on one hand, the risk level value of each dangerous chemical tank area is determined according to the temporary regulations on the supervision and management of the major dangerous sources of dangerous chemicals in appendix 1 grading method of the major dangerous sources of dangerous chemicals in the 40 th order of the State safety production supervision and administration; on the other hand, the alarm data of some preset monitoring variables of the dangerous chemical tank area are acquired and stored in real time according to the importance degree and the acquisition difficulty of the data; secondly, monitoring the current risk state of the chemical industry enterprise in real time according to the currently acquired alarm data; on the other hand, the degree of safe production risk (i.e., the current warning value) over a period of time of the hazardous chemical tank farm is also evaluated from the alarm history data.
Under the same risk degree (namely under the condition that the current early warning values are the same), the chemical enterprises with high grading scores of the major dangerous sources of the dangerous chemicals have greater risks, so that in the embodiment of the invention, the real-time safety production risk early warning indexes of the chemical enterprises are determined by combining the grading scores of the major dangerous sources of the dangerous chemicals in the dangerous chemical tank area and the real-time current early warning values of the dangerous chemical tank area for comprehensive evaluation, and the risk conditions of the chemical enterprises are mastered.
By the method, a government supervision department can directly acquire the production risk condition of the current working condition of the dangerous chemical tank field in real time in the process of carrying out safety production risk management on each chemical enterprise; therefore, on one hand, the invention saves a great deal of workload of data analysis and result judgment of the monitoring personnel; on the other hand, the problem that the subjective performance of data cannot reflect the actual situation in a mode of expert scoring can be avoided, and the government management effect on the safety production risk of the chemical enterprises is further improved.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood and to make the technical means implementable in accordance with the contents of the description, and to make the above and other objects, technical features, and advantages of the present invention more comprehensible, one or more preferred embodiments are described below in detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a diagram of the steps of the hazardous chemical tank farm safety risk warning method of the present invention;
FIG. 2 is a diagram of another step of the hazardous chemical tank farm safety risk early warning method of the present invention;
FIG. 3 is a schematic structural diagram of a dangerous chemical tank farm safety risk early warning device according to the present invention;
fig. 4 is a schematic structural diagram of the safety risk early warning device for the hazardous chemical tank farm in the present invention.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
Spatially relative terms, such as "below," "lower," "upper," "above," "upper," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element or feature in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the object in use or operation in addition to the orientation depicted in the figures. For example, if the items in the figures are turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the elements or features. Thus, the exemplary term "below" can encompass both an orientation of below and above. The article may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative terms used herein should be interpreted accordingly.
In this document, the terms "first", "second", etc. are used to distinguish two different elements or portions, and are not used to define a particular position or relative relationship. In other words, the terms "first," "second," and the like may also be interchanged with one another in some embodiments.
Example one
In order to improve timeliness and effectiveness of a supervision department for monitoring safety production risks of chemical enterprises, as shown in fig. 1, an embodiment of the invention provides a safety risk early warning method for a dangerous chemical tank field, which comprises the following steps:
s11, determining the basic risk level of each chemical enterprise according to the dangerous chemical major hazard source grading score of the dangerous chemical tank area of each chemical enterprise;
the application scenario of the embodiment of the invention can be that a government supervision department establishes data communication connection with all dangerous chemical tank areas in the jurisdiction of the government department based on the internet to acquire the reported data of each dangerous chemical tank area.
In practical application, the major hazard sources can be classified according to the classification method of the major hazard sources of the hazardous chemicals in appendix 1 of provisional regulations on the supervision and management of the major hazard sources of the hazardous chemicals in the 40 th order of the State safety production supervision and administration, and the basic risk grades of the chemical enterprises are respectively determined according to the scores of the maximum hazard source grades of the hazardous chemical tank areas;
preferably, the score for the maximum hazard level for a hazardous chemical tank farm may be set to four base risk levels, which may be calculated as:
in the formula: rMaj_hazardIn order to adopt the ratio of the actual (on-line) quantity of various dangerous chemicals in the unit to the critical quantity specified in the identification of dangerous chemical major hazard source (GB18218), the sum of the ratios corrected by the correction coefficient is used as the grading index.
q1,q2,…,qnThe actual (on-line) amount of each hazardous chemical (unit: ton);
Q1,Q2,…,Qnis a critical amount (unit: ton) corresponding to each hazardous chemical;
β1，β2…,βncorrection coefficients corresponding to the respective hazardous chemicals;
alpha is the correction factor of the exposed personnel outside the factory area of the major hazard source of the hazardous chemicals.
It should be noted that, in practical applications, when a chemical industry enterprise includes a plurality of major risk sources, the enterprise risk source rating may be based on the highest dangerous chemical major risk source rating score, that is, the basic risk rating of the chemical industry enterprise is determined according to the highest dangerous chemical major risk source rating score of the major risk source with the highest score.
S12, acquiring alarm data of preset monitoring variables of the dangerous chemical tank area in real time; the preset monitoring variables comprise the temperature, pressure, liquid level, toxic and harmful gases and combustible gases of a major hazard source of the hazardous chemical tank area;
in practical application, a Distributed Control System (DCS) for controlling a hazardous chemical tank field acquires various monitoring variables to acquire data of various devices including major hazard sources and generates alarm data when the data is abnormal in the process of production control and monitoring.
In the embodiment of the invention, firstly, monitoring variables (namely preset monitoring variables) such as temperature, pressure, liquid level, toxic and harmful gases and combustible gases of a major hazard source are determined to be used as key parameters for representing the safety risk of a dangerous chemical tank area;
it should be noted that, in addition to the preset monitoring variables already listed above, according to practical situations, those skilled in the art may also determine other key parameters capable of characterizing the safety risk of the hazardous chemical tank field as the preset monitoring variables, and are not limited herein.
S13, generating emergency alarm data when the alarm data accord with a first preset rule; updating alarm historical data of the dangerous chemical tank area according to the alarm data and/or the emergency alarm information;
the inventor finds that as a supervision department, the dangerous chemical tank area is not required to be comprehensively monitored and controlled through a large amount of early warning data, so that in the embodiment of the invention, a few key alarm data capable of representing the safety risk of the dangerous chemical tank area are determined to serve as a monitoring basis, the data type and the data amount of the alarm data received by the supervision department are further simplified, and the difficulty in remotely acquiring the data and the difficulty and the workload in analyzing the data are reduced.
In the embodiment of the invention, on one hand, various real-time alarm data can be judged in a mode of respectively presetting threshold values of various alarm data (namely, a first preset rule) so as to determine whether the current dangerous chemical tank area has the possibility of serious safety accidents; on the other hand, the real-time alarm data is stored to generate alarm historical data, and it should be noted that, in the embodiment of the present invention, the analysis results of the multiple kinds of alarm data each time of the emergency alarm data may also be stored in the alarm historical data.
S14, regularly counting and calculating the alarm historical data, including: generating a current early warning value of the dangerous chemical tank area according to numerical values of the quantity, frequency and duration of alarm data and emergency alarm data in the alarm historical data and respective weights of the numerical values;
when the alarm data of the temperature, the pressure, the liquid level and the like of a certain major hazard source has too many alarms within a certain time range, or the alarms are too frequent, or the alarm duration is too long, it is indicated that the safety risk of the hazardous chemical tank area is continuously in a high-level operation state, and attention needs to be paid and potential safety hazards need to be checked and controlled. In addition, for the safety risk of the dangerous chemical tank area, the quantity, the frequency and the duration of the emergency alarm data in the embodiment of the invention have important reference significance, so that the risk degree of the dangerous chemical tank area is comprehensively represented by counting the emergency alarm data into the category of statistics and calculation.
In practical application, the generating of the current warning value of the hazardous chemical tank area according to the numerical values of the number, frequency and duration of the alarm data and the emergency alarm data in the alarm history data and the respective weights thereof may specifically include:
respectively calculating a process control index and a tank area leakage alarm index of the major hazard source according to the alarm historical data; the process control index and the tank leakage alarm index are all comprehensively determined by daily average alarm frequency score, disturbance rate score, repeated alarm point position score, alarm point position ratio score, average alarm elimination duration score and alarm elimination disposal and time rate score. The process control indexes in the embodiment of the invention can comprise the temperature and the pressure of the normal pressure tank and the LNG spherical tank, and the high-high and low alarms of the liquid level of the normal pressure tank and the liquid level of the LNG spherical tank; the tank area leakage alarm index can be toxic and harmful gas, combustible gas alarm and the like.
The alarm data of each preset monitoring variable is only independent alarm data and cannot directly reflect the overall risk condition of the dangerous chemical tank area, so that in the embodiment of the invention, the process control index of a major hazard source and the tank area leakage alarm index are respectively calculated.
Generally, the process control index and the tank field leakage alarm index can be composed of 5 evaluation items, which are respectively: average disturbance rate, repeated alarm, average alarm frequency of point location, average alarm-eliminating duration, alarm-eliminating disposal and timeliness rate. Each index evaluates different aspects of the alarm index, such as evaluating disturbance rate to calculate the proportion of alarm points in all alarm points, so as to distinguish tank areas with different scales; and (4) repeatedly alarming, and calculating the number of the point locations with repeated alarming so as to highlight the point locations always alarming.
Each evaluation item can be set to be 20 points, so that the total point is 100 points, the time span of each statistical calculation can be the number of times of continuously accumulating alarm data for 1 day (namely, the statistical calculation is performed once every day), and the acquisition frequency of the alarm data can be acquired once every ten minutes.
Therefore, the risk of the dangerous chemical tank field can be comprehensively represented from the two aspects of the process control index and the tank field leakage alarm index.
In the embodiment of the invention, the risk of the dangerous chemical tank area is comprehensively calculated by further obtaining the process control index and the tank area leakage alarm index to obtain a current early warning value.
In practical application, the current early warning value TAlarmThe specific calculation method may be:
according to the related standard and system of international alarm management: EEMU _191_ Alarm systems, while in conjunction with the actual access to hazardous chemical tank farm itself, calculate the current warning value according to the following formula:
in the formula:
TAlarmfor the current warningA value; t is1,jAlarming for process control indexes such as temperature, pressure and liquid level of the normal pressure tank and the LNG spherical tank;
T2,jalarm indexes for tank area leakage, including toxic and harmful gas, combustible gas alarm and the like;
α1and alpha2The weight coefficients are secondary indexes, and specific values of the weight coefficients can be calculated by an analytic hierarchy process; or may be obtained empirically or by limited experimentation by those skilled in the art.
And S15, calculating the safety production risk early warning index of the chemical industry enterprise according to a second preset rule by taking the basic risk level and the current early warning value as parameters.
Because the chemical enterprises with high grading scores (i.e., basic risk grades) of the major dangerous sources of the dangerous chemicals have greater risks under the same risk degree (i.e., under the condition that the current early warning values are the same), in the embodiment of the invention, a risk factor which can integrally and comprehensively evaluate the risks of the safe production (i.e., the early warning indexes of the safe production risks) is obtained by combining the grading scores of the major dangerous sources of the dangerous chemicals of the chemical enterprises with the real-time current early warning values.
In practical application, a corresponding correction coefficient can be generated according to the basic risk level, and then a safety production risk early warning index can be obtained according to the correction coefficient and the real-time current early warning value, and can also be obtained through other calculation modes. For example, the basic risk grade corresponding to the major hazard source classification of a certain chemical may be set to be the standard correction coefficient 1, and the other grades may be set to be specific numerical values such as 0.8 according to the experience of the skilled person in the art, so that the final safety production risk early warning index may be obtained by calculating the product of the correction coefficient and the current early warning value.
In summary, in the embodiment of the present invention, on one hand, the risk level value of each hazardous chemical tank area is determined according to the provisional regulation for hazardous chemical major hazard source supervision and management of the national safety production supervision and administration headquarter No. 40, annex 1 classification method for hazardous chemical major hazard source; on the other hand, the alarm data of some preset monitoring variables of the dangerous chemical tank area are acquired and stored in real time according to the importance degree and the acquisition difficulty of the data; secondly, monitoring the current risk state of the chemical industry enterprise in real time according to the currently acquired alarm data; on the other hand, the degree of safe production risk (i.e., the current warning value) over a period of time of the hazardous chemical tank farm is also evaluated from the alarm history data.
Under the same risk degree (namely under the condition that the current early warning values are the same), the chemical enterprises with high grading scores of the major dangerous sources of the dangerous chemicals have greater risks, so that in the embodiment of the invention, the real-time safety production risk early warning indexes of the chemical enterprises are determined by combining the grading scores of the major dangerous sources of the dangerous chemicals in the dangerous chemical tank area and the real-time current early warning values of the dangerous chemical tank area for comprehensive evaluation, and the risk conditions of the chemical enterprises are mastered.
By the method, a government supervision department can directly acquire the production risk condition of the current working condition of the dangerous chemical tank field in real time in the process of carrying out safety production risk management on each chemical enterprise; therefore, on one hand, the invention saves a great deal of workload of data analysis and result judgment of the monitoring personnel; on the other hand, the problem that the subjective performance of data cannot reflect the actual situation in a mode of expert scoring can be avoided, and the government management effect on the safety production risk of the chemical enterprises is further improved.
Example two
In order to obtain a more intuitive and accurate safety production risk early warning index, in the embodiment of the present invention, on the basis of the first embodiment, an obtaining manner of the safety production risk early warning index is further optimized, as shown in fig. 2, which specifically includes:
s151, dividing the scores of the major hazard source classification of the dangerous chemicals into a plurality of basic risk grades in advance, and determining corresponding correction coefficients according to the basic risk grades; presetting the current early warning value and the current early warning of a plurality of current early warning levelsIndex TRThe corresponding relationship of (a);
in practical application, as shown in table 2, the classification into four basic risk classes and their corresponding correction coefficients γ can be performed according to the score of the dangerous chemical major hazard classificationR；
Table 2:
| serial number | RMaj_hazardValue of | Basic risk rating | Correction coefficient gammaR |
| 1 | RMaj_hazard≥100 | First stage | 1 |
| 2 | 50≤RMaj_hazard＜100 | Second stage | 0.77 |
| 3 | 10≤RMaj_hazard＜50 | Three-stage | 0.58 |
| 4 | RMaj_hazard＜10 | Four stages | 0.3 |
Then, the current early warning index T related to the current early warning value and a plurality of current early warning levelsRThe corresponding relationship of (a); as shown in table 3, the current warning value may be divided into five current warning levels, and the current warning value may be further converted into a corresponding current warning index TRDue to the current early warning index TRThe interval range of (1) to (5) can be conveniently corresponding to five current early warning levels, so that subsequent calculation is easy, and the final result is easier to interpret and identify.
Specifically, the current warning value T is usedAlarmDividing the risk into 5 grades of serious high, general and low according to the risk, and using the current early warning index T of 1-5 grade intervals for each gradeRTo represent; table 3:
| serial number | TAlarmValue of | Current level of pre-warning | Current early warning index TR |
| l | 0＜TAlarm≤20 | Severe high | 4＜TR≤5 |
| 2 | 20＜TAlarm≤40 | Height of | 3＜TR≤4 |
| 3 | 40＜TAlarm≤60 | Is higher than | 2＜TR≤3 |
| 4 | 60＜TAlarm≤80 | In general | l＜TR≤2 |
| 5 | 80＜TAlarm≤100 | Is low in | 0＜TR≤1 |
S152, calculating a corresponding current early warning index according to the current early warning value obtained in real time;
table 3 shows the current warning value and the current warning index TROne specific example of the correspondence relationship of (a); that is, after the current warning value of the hazardous chemical tank area is generated according to the alarm data in the alarm history data and the quantity, frequency, duration and other values of the emergency alarm data, the corresponding current warning index T needs to be further calculatedRThe result should fall on one of 5 levels, severe high, normal or low.
S153, calculating a real-time safety production risk early warning index of the chemical enterprise according to a preset formula;
the preset formula comprises:
R＝γR·TR
in the formula: the above-mentionedR is a safety production risk early warning index of a chemical enterprise; the gamma isRA correction factor determined according to the base risk level; the T isRIs the current early warning index.
EXAMPLE III
On the other hand, in the embodiment of the present invention, there is also provided a dangerous chemical tank farm safety risk early warning apparatus, fig. 3 shows a schematic structural diagram of the dangerous chemical tank farm safety risk early warning apparatus provided in the embodiment of the present invention, the dangerous chemical tank farm safety risk early warning apparatus is an apparatus corresponding to the dangerous chemical tank farm safety risk early warning method in the first embodiment corresponding to fig. 1 and 2, that is, the dangerous chemical tank farm safety risk early warning method in the embodiment corresponding to fig. 1 and 2 is implemented by a virtual apparatus, and each virtual module constituting the dangerous chemical tank farm safety risk early warning apparatus may be executed by an electronic device, such as a network device, a terminal device, or a server. Specifically, the dangerous chemical tank field safety risk early warning device in the embodiment of the invention comprises:
the dangerous source grading unit 01 is used for respectively determining the serious dangerous source grading scores of the dangerous chemicals in each dangerous chemical tank area;
the alarm receiving unit 02 is used for acquiring alarm data of preset monitoring variables of the hazardous chemical tank area in real time; the preset monitoring variables comprise the temperature, pressure, liquid level, toxic and harmful gases and combustible gases of a major hazard source of the hazardous chemical tank area;
the data processing unit 03 is used for generating emergency alarm data when the alarm data accord with a first preset rule, and updating alarm historical data of the dangerous chemical tank area according to the alarm data and the emergency alarm information;
the data analysis unit 04 is configured to periodically count and calculate the alarm history data, and includes: generating a current early warning value of the dangerous chemical tank area according to numerical values of the quantity, frequency and duration of alarm data and emergency alarm data in the alarm historical data and respective weights of the numerical values;
the risk early warning generation unit 05 is configured to calculate a safety production risk early warning index of the hazardous chemical tank area according to a second preset rule by using the major hazard source classification score of the hazardous chemical and the current early warning value as parameters.
Further, in this embodiment of the present invention, the risk early warning calculation unit 05 may specifically include:
a grading module (not shown in the figure) for previously and respectively grading the scores of the major hazard source grades of the dangerous chemicals and the scores of the current early warning values into a plurality of grades;
a rank value calculation module (not shown in the figure) for determining the rank value of the major dangerous source of the dangerous chemical and the current early warning rank value according to the real-time major dangerous source ranking score of the dangerous chemical and the current early warning value;
a result generation module (not shown in the figure) for calculating a real-time safety production risk early warning index of the dangerous chemical tank area according to a preset formula;
the preset formula comprises:
R＝γR·TR
in the formula: the R is a safety production risk early warning index of the dangerous chemical tank area; the gamma isRThe correction coefficient is determined according to the grading value of the major hazard source of the hazardous chemicals; the T isRAnd the value is the current early warning grade value.
Since the working principle and the beneficial effects of the dangerous chemical tank area safety risk early warning device in the embodiment of the invention are also recorded and described in the dangerous chemical tank area safety risk early warning method corresponding to fig. 1 and fig. 2, they can be referred to each other and are not described herein again.
Example four
In an embodiment of the present invention, a memory is further provided, where the memory includes a software program, and the software program is adapted to enable the processor to execute each step in the hazardous chemical tank farm safety risk early warning method corresponding to fig. 1 or fig. 2.
The embodiment of the present invention may be implemented by a software program, that is, by writing a software program (and an instruction set) for implementing each step in the safety risk early warning method for a hazardous chemical tank farm corresponding to fig. 1 or fig. 2, the software program is stored in a storage device, and the storage device is disposed in a computer device, so that the processor of the computer device may call the software program to implement the purpose of the embodiment of the present invention.
EXAMPLE five
In an embodiment of the present invention, a dangerous chemical tank farm safety risk early warning apparatus is further provided, where a memory included in the dangerous chemical tank farm safety risk early warning apparatus includes a corresponding computer program product, and program instructions included in the computer program product, when executed by a computer, enable the computer to execute the dangerous chemical tank farm safety risk early warning method described in the above aspects, and achieve the same technical effect.
Fig. 4 is a schematic diagram of a hardware structure of a hazardous chemical tank farm safety risk early warning device as an electronic device according to an embodiment of the present invention, and as shown in fig. 4, the device includes one or more processors 610, a bus 630, and a memory 620. Taking one processor 610 as an example, the apparatus may further include: input device 640, output device 650.
The processor 610, the memory 620, the input device 640, and the output device 650 may be connected by a bus or other means, such as the bus connection in fig. 4.
The memory 620, which is a non-transitory computer readable storage medium, may be used to store non-transitory software programs, non-transitory computer executable programs, and modules. The processor 610 executes various functional applications and data processing of the electronic device, i.e., the processing method of the above-described method embodiment, by executing the non-transitory software programs, instructions and modules stored in the memory 620.
The memory 620 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data and the like. Further, the memory 620 may include high speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory 620 optionally includes memory located remotely from the processor 610, which may be connected to the processing device via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 640 may receive input numeric or character information and generate a signal input. The output device 650 may include a display device such as a display screen.
The one or more modules are stored in the memory 620 and, when executed by the one or more processors 610, perform:
s11, determining the basic risk level of each chemical enterprise according to the dangerous chemical major hazard source grading score of the dangerous chemical tank area of each chemical enterprise;
s12, acquiring alarm data of preset monitoring variables of the dangerous chemical tank area in real time; the preset monitoring variables comprise the temperature, pressure, liquid level, toxic and harmful gases and combustible gases of a major hazard source of the hazardous chemical tank area;
s13, generating emergency alarm data when the alarm data accord with a first preset rule; updating alarm historical data of the dangerous chemical tank area according to the alarm data and/or the emergency alarm information;
s14, regularly counting and calculating the alarm historical data, including: generating a current early warning value of the dangerous chemical tank area according to numerical values of the quantity, frequency and duration of alarm data and emergency alarm data in the alarm historical data and respective weights of the numerical values;
and S15, calculating the safety production risk early warning index of the chemical industry enterprise according to a second preset rule by taking the basic risk level and the current early warning value as parameters.
Preferably, the calculating the safety production risk early warning index of the chemical industry enterprise according to a second preset rule by using the basic risk level and the current early warning value as parameters includes:
s151, dividing the scores of the major hazard source classification of the dangerous chemicals into a plurality of basic risk grades in advance, and determining corresponding correction coefficients according to the basic risk grades; presetting a corresponding relation between the current early warning value and current early warning indexes of a plurality of current early warning grades;
s152, calculating a corresponding current early warning index according to the current early warning value obtained in real time;
s153, calculating a real-time safety production risk early warning index of the chemical enterprise according to a preset formula;
the preset formula comprises:
R＝γR·TR
in the formula: the R is a safety production risk early warning index of the dangerous chemical tank area; the gamma isRA correction factor determined according to the base risk level; the T isRAnd the index is the current early warning grade index.
The product can execute the method provided by the embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method. For technical details that are not described in detail in this embodiment, reference may be made to the method provided by the embodiment of the present invention.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus, device and method can be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage device and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage device includes: a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a ReRAM, an MRAM, a PCM, a NAND Flash, a NOR Flash, a Memory, a magnetic disk, an optical disk, or other various media that can store program codes.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (11)
1. A dangerous chemical tank field safety risk early warning method is characterized by comprising the following steps:
s11, determining the basic risk level of each chemical enterprise according to the dangerous chemical major hazard source grading score of the dangerous chemical tank area of each chemical enterprise;
s12, acquiring alarm data of preset monitoring variables of the dangerous chemical tank area in real time; the preset monitoring variables comprise the temperature, pressure, liquid level, toxic and harmful gases and combustible gases of a major hazard source of the hazardous chemical tank area;
s13, generating emergency alarm data when the alarm data accord with a first preset rule; updating alarm historical data of the dangerous chemical tank area according to the alarm data and/or the emergency alarm information;
s14, regularly counting and calculating the alarm historical data, including: generating a current early warning value of the dangerous chemical tank area according to numerical values of the quantity, frequency and duration of alarm data and emergency alarm data in the alarm historical data and respective weights of the numerical values;
and S15, calculating the safety production risk early warning index of the chemical industry enterprise according to a second preset rule by taking the basic risk level and the current early warning value as parameters.
2. The hazardous chemical tank farm safety risk early warning method of claim 1, wherein generating the current early warning value of the hazardous chemical tank farm from the numerical values of the number, frequency and duration of alarm data and emergency alarm data in the alarm history data and their respective weights comprises:
respectively calculating a process control index and a tank area leakage alarm index of the major hazard source according to the alarm historical data; the process control index and the tank leakage alarm index are all comprehensively determined by daily average alarm frequency score, disturbance rate score, repeated alarm point position score, alarm point position ratio score, average alarm elimination duration score and alarm elimination disposal and time rate score.
3. The hazardous chemical tank farm safety risk early warning method of claim 2, wherein the process control indicators comprise:
and the temperature and the pressure of the normal pressure tank and the LNG spherical tank as well as the height and the height of the liquid level of the normal pressure tank and the liquid level of the LNG spherical tank are alarmed.
4. The hazardous chemical tank farm safety risk early warning method of claim 2, wherein the tank farm leakage alarm indicator comprises:
and toxic and harmful gas alarm and combustible gas alarm.
5. The hazardous chemical tank farm safety risk early warning method according to claim 1, wherein the calculating the safety production risk early warning index of the chemical industry according to a second preset rule with the basic risk level and the current early warning value as parameters comprises:
s151, dividing the scores of the major hazard source classification of the dangerous chemicals into a plurality of basic risk grades in advance, and determining corresponding correction coefficients according to the basic risk grades; presetting a corresponding relation between the current early warning value and current early warning indexes of a plurality of current early warning grades;
s152, calculating a corresponding current early warning index according to the current early warning value obtained in real time;
s153, calculating a real-time safety production risk early warning index of the chemical enterprise according to a preset formula;
the preset formula comprises:
R＝γR·TR
in the formula: the R is a safety production risk early warning index of the dangerous chemical tank area; the gamma isRA correction factor determined according to the base risk level; the T isRAnd the index is the current early warning grade index.
6. The hazardous chemical tank farm safety risk early warning method according to claim 1, wherein the determining the major hazardous chemical hazard source classification score of each hazardous chemical tank farm respectively comprises:
when the hazardous chemical tank farm includes a plurality of significant hazard sources, the highest hazardous chemical significant hazard source ranking score is the criterion.
7. The utility model provides a dangerous chemical tank field safety risk early warning device which characterized in that includes:
the system comprises a danger source grading unit, a risk source grading unit and a risk source grading unit, wherein the danger source grading unit is used for determining the basic risk grade of each chemical enterprise according to the major danger source grading score of the dangerous chemicals in the dangerous chemical tank area of each chemical enterprise;
the alarm receiving unit is used for acquiring alarm data of preset monitoring variables of the dangerous chemical tank area in real time; the preset monitoring variables comprise the temperature, pressure, liquid level, toxic and harmful gases and combustible gases of a major hazard source of the hazardous chemical tank area;
the data processing unit is used for generating emergency alarm data when the alarm data accord with a first preset rule; updating alarm historical data of the dangerous chemical tank area according to the alarm data and/or the emergency alarm information;
the data analysis unit is used for regularly counting and calculating the alarm historical data and comprises the following steps: generating a current early warning value of the dangerous chemical tank area according to numerical values of the quantity, frequency and duration of alarm data and emergency alarm data in the alarm historical data and respective weights of the numerical values;
and the risk early warning generation unit is used for calculating the safety production risk early warning index of the chemical enterprise according to a second preset rule by taking the basic risk level and the current early warning value as parameters.
8. The hazardous chemical tank farm safety risk pre-warning device of claim 7, wherein the risk pre-warning generating unit comprises:
the grade division module is used for dividing the grading values of the major hazard sources of the dangerous chemicals into a plurality of basic risk grades in advance and determining corresponding correction coefficients according to the basic risk grades; presetting a corresponding relation between the current early warning value and current early warning indexes of a plurality of current early warning grades;
the grade value calculation module is used for calculating a corresponding current early warning index according to the current early warning value obtained in real time;
the result generation module is used for calculating the real-time safety production risk early warning index of the chemical enterprise according to a preset formula;
the preset formula comprises:
R＝γR·TR
in the formula: the R is a safety production risk early warning index of the dangerous chemical tank area; the gamma isRA correction factor determined according to the base risk level; the T isRAnd the index is the current early warning grade index.
9. The hazardous chemical tank farm safety risk early warning device of claim 8,
the process control indexes comprise the temperature and the pressure of the normal pressure tank and the LNG spherical tank, and the high-high and low alarms of the liquid level of the normal pressure tank and the liquid level of the LNG spherical tank;
the tank area leakage alarm indexes comprise toxic and harmful gas alarm and combustible gas alarm.
10. A memory comprising a software program adapted to execute the steps of the hazardous chemical tank farm safety risk pre-warning method of any of claims 1 to 6 by a processor.
11. A hazardous chemical tank farm safety risk early warning device, comprising a bus, a processor, and a memory as recited in claim 10;
the bus is used for connecting the memory and the processor;
the processor is configured to execute a set of instructions in the memory.
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