Evaluation method and evaluation device for gasification safety of gasified coal in gasification system

Abstract

The invention provides an evaluation method and an evaluation device for gasification safety of gasified coal in a gasification system. The method comprises the following steps: acquiring a plurality of first process parameters in a first system and a plurality of second process parameters in a second system; determining a plurality of first weight parameters of the plurality of first process parameters, and calculating a first safety score of the first system at least according to the plurality of first weight parameters; determining a plurality of second weight parameters of the plurality of second process parameters, and calculating a second safety score of the second system at least according to the plurality of second weight parameters; calculating a third safety score at least according to the first safety score and the second safety score; when the third safety score is not smaller than the preset threshold value, it is determined that the safety of the gasification system is qualified, and when the third safety score is smaller than the preset threshold value, it is determined that the safety of the gasification system is unqualified, and the problem that in the prior art, the gasification safety of the gasification coal in the gasification system cannot be evaluated is solved.

Description

Technical Field

[0001] The present application relates to the field of industrial gasification, and in particular, to an evaluation method, an evaluation device and an electronic device for evaluating the gasification safety of gasified coal in a gasification system. Background Art

[0002] The gasifier is the core of the coal chemical plant. It determines whether the whole system of the coal chemical plant can operate safely and stably for a long period of time, at full load, and thus directly affects the economic benefits of the product. There are many factors that affect the safe and stable operation of the gasifier. In addition to the reasons of the equipment, instruments and processes themselves, it is also related to personnel operation, the nature of raw coal, etc., especially the quality of coal has a direct relationship with the safety of the gasifier operation, which may cause a breakdown and stop at the least, or cause a safety accident at the worst. The main reason for the change in coal quality is that the formation mechanism of different coal seams is different and the coal supply is unstable, resulting in a difference between the coal quality required for actual gasification production and the coal quality of the original gasifier design, resulting in a mismatch between the gasification raw material and the gasifier. Gasified coal will not only affect the furnace temperature distribution, heat load distribution, slag mouth pressure difference, etc. in the gasifier, but also affect auxiliary systems such as the coal grinding system and slag water treatment system, all of which will cause safety problems in the gasifier.

[0003] At present, most of the methods for evaluating the safety matching between gasification coal and gasifier are based on the prediction of coal quality index analysis, that is, by analyzing some basic characteristics of gasification coal, such as ash content, ash melting point, viscosity-temperature characteristics, calorific value, ash composition, etc., the safety matching problem between the gasification coal and the gasifier is inferred based on the range of these index data. This method has certain guidance in the selection of gasification coal, but it is not strong in guiding the safety of gasification coal during the gasification process, which is mainly manifested in the following aspects: 1) Due to the natural heterogeneity and complex characteristics of coal, the sampling requirements for coal are very high, and it is not known whether the coal type analyzed in the experiment is representative; 2) Most of the coal quality index data are measured under laboratory conditions, which is quite different from the actual gasification process environment, and there are certain errors in the test process. Therefore, the tested coal quality index data cannot be fully matched and applied on industrial gasifiers; 3) The gasification process is very complicated, especially the entrained flow gasification process. The existing coal quality index cannot meet the safety needs of the gasification process, which is why many industrial gasifiers are more willing to test burn gasification coal.

[0004] Therefore, there is an urgent need for a method for evaluating the gasification safety of gasified coal in a gasification system. Summary of the invention

[0005] The main purpose of the present application is to provide a method, an evaluation device and an electronic device for evaluating the gasification safety of gasified coal in a gasification system, so as to at least solve the problem that the gasification safety of gasified coal in a gasification system cannot be evaluated in the prior art.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present application, a method for evaluating the gasification safety of gasified coal in a gasification system is provided, the gasification system comprising a first system and a second system, the first system comprising at least a feeding device, a gasification device and a washing device, the second system comprising at least a coal grinding and pulverizing device and a slag water treatment device, the evaluation method comprising: obtaining a plurality of first process parameters in the first system and a plurality of second process parameters in the second system, wherein the plurality of first process parameters and the plurality of second process parameters respectively comprise at least pressure, temperature and current; determining a plurality of first weight parameters of the plurality of first process parameters, and calculating a first safety parameter of the first system at least based on the plurality of first weight parameters. A full score, wherein the plurality of the first weight parameters correspond one-to-one to the plurality of the first process parameters; a plurality of second weight parameters of the plurality of the second process parameters are determined, and a second safety score of the second system is calculated at least based on the plurality of the second weight parameters, wherein the plurality of the second weight parameters correspond one-to-one to the plurality of the second process parameters; a third safety score is calculated at least based on the first safety score and the second safety score, the third safety score being a comprehensive safety evaluation score of the gasified coal in the gasification process; when the third safety score is not less than a preset threshold, the safety of the gasification system is determined to be qualified, and when the third safety score is less than the preset threshold, the safety of the gasification system is determined to be unqualified.

[0007] Optionally, determining multiple first weight parameters of the multiple first process parameters includes: utilizing a hazard and operability analysis method to determine multiple first risk levels of the multiple first process parameters; determining multiple first weight parameters of the multiple first process parameters based on the multiple first risk levels, wherein the higher the first risk level, the larger the first weight parameter.

[0008] Optionally, and at least based on the multiple first weight parameters, calculating the first safety score of the first system includes: determining multiple first scores, wherein the first score is the safety score of the first process parameter; constructing a first scoring formula, wherein the independent variables of the first scoring formula are the first score and the first weight parameter, and the dependent variable of the first scoring formula is the first safety score; inputting the multiple first scores and the multiple first weight parameters into the first scoring formula to obtain the first safety score of the first system.

[0009] Optionally, determining multiple first scores includes: comparing the multiple first process parameters with thresholds in a first threshold group to determine the multiple first scores, wherein the multiple first scores correspond to the first process parameters one by one, the first threshold group includes a first threshold, a second threshold, a third threshold, a fourth threshold, a fifth threshold and a sixth threshold, the first threshold is a first alarm value when the first process parameter is not within a first normal range, the second threshold is a second alarm value when the first process parameter is not within the first normal range, the third threshold is an upper limit value of the first normal range, the fourth threshold is a lower limit value of the first normal range, the fifth threshold is a third alarm value when the first process parameter is not within the first normal range, the sixth threshold is a fourth alarm value when the first process parameter is not within the first normal range, and the first threshold, the second threshold, the third threshold , the fourth threshold, the fifth threshold and the sixth threshold decrease in sequence; when the first process parameter is not less than the first threshold and the first process parameter is not greater than the sixth threshold, the first score is determined to be the first score; when the first process parameter is less than the first threshold and not less than the second threshold or the first process parameter is greater than the sixth threshold and not greater than the fifth threshold, the first score is determined to be the second score; when the first process parameter is less than the second threshold and not less than the third threshold or the first process parameter is not greater than the fourth threshold and greater than the fifth threshold, the first score is determined to be the third score; when the first process parameter is less than the third threshold and greater than the fourth threshold, the first score is determined to be the fourth score, and the sizes of the first score, the second score, the third score and the fourth score increase in sequence.

[0010] Optionally, determining multiple second weight parameters for the multiple second process parameters includes: utilizing a hazard and operability analysis method to determine multiple second risk levels for the multiple second process parameters; determining multiple second weight parameters for the multiple second process parameters based on the multiple second risk levels, wherein the higher the second risk level, the greater the second weight parameter.

[0011] Optionally, and at least based on the multiple second weight parameters, calculating the second safety score of the second system includes: determining multiple second scores, wherein the second score is the safety score of the second process parameter; constructing a second scoring formula, the independent variables of the second scoring formula are the second score and the second weight parameter, and the dependent variable of the second scoring formula is the second safety score; inputting the multiple second scores and the multiple second weight parameters into the second scoring formula to obtain the second safety score of the second system.

[0012] Optionally, determining multiple second scores includes: comparing the multiple second process parameters with the thresholds in the second threshold group to determine the multiple second scores, wherein the multiple second scores correspond to the second process parameters one by one, the second threshold group includes a seventh threshold, an eighth threshold, a ninth threshold, a tenth threshold, an eleventh threshold and a twelfth threshold, the seventh threshold is the fifth alarm value that the second process parameter is not within the second normal range, the eighth threshold is the sixth alarm value that the second process parameter is not within the second normal range, the ninth threshold is the upper limit value of the second normal range, the tenth threshold is the lower limit value of the second normal range, the eleventh threshold is the seventh alarm value that the second process parameter is not within the second normal range, the twelfth threshold is the eighth alarm value that the second process parameter is not within the second normal range, and the seventh threshold, the eighth threshold, the ninth threshold, The tenth threshold, the eleventh threshold and the twelfth threshold decrease in sequence; when the second process parameter is not less than the seventh threshold and is not greater than the twelfth threshold, the second score is determined to be the fifth score; when the second process parameter is less than the seventh threshold and not less than the eighth threshold or the first process parameter is greater than the twelfth threshold and not greater than the eleventh threshold, the second score is determined to be the sixth score; when the second process parameter is less than the eighth threshold and not less than the ninth threshold or the second process parameter is not greater than the tenth threshold and greater than the eleventh threshold, the second score is determined to be the seventh score; when the second process parameter is less than the ninth threshold and greater than the tenth threshold, the second score is determined to be the eighth score, and the fifth score, the sixth score, the seventh score and the eighth score increase in sequence.

[0013] Optionally, calculating a third safety score at least based on the first safety score and the second safety score includes: determining a third weight parameter of the first safety score and a fourth weight parameter of the second safety score, wherein the third weight parameter and the fourth weight parameter are set according to actual conditions, and the third weight parameter is greater than the fourth weight parameter; constructing a comprehensive scoring formula, wherein the independent variables of the comprehensive scoring formula are the third weight parameter, the fourth weight parameter, the first safety score and the second safety score, and the dependent variable of the comprehensive scoring formula is the third safety score; and inputting the third weight parameter, the fourth weight parameter, the first safety score and the second safety score into the comprehensive scoring formula to obtain the third safety score.

[0014] According to another aspect of the present application, a device for evaluating the gasification safety of gasified coal in a gasification system is provided. The gasification system includes a first system and a second system. The first system includes at least a feed unit device, a gasification device, and a washing device. The second system includes at least a coal pulverizing device and a slag water treatment device. The evaluation device includes:

[0015] An acquisition unit, which acquires a plurality of first process parameters in the first system and a plurality of second process parameters in the second system, wherein the plurality of first process parameters and the plurality of second process parameters respectively include at least pressure, temperature and current;

[0016] a first determining unit, determining a plurality of first weight parameters of the plurality of first process parameters, and calculating a first safety score of the first system at least based on the plurality of first weight parameters, wherein the plurality of first weight parameters correspond one-to-one to the plurality of first process parameters;

[0017] a second determining unit, determining a plurality of second weight parameters of the plurality of second process parameters, and calculating a second safety score of the second system at least based on the plurality of second weight parameters, wherein the plurality of second weight parameters correspond one-to-one to the plurality of second process parameters;

[0018] A calculation unit, calculating a third safety score based on at least the first safety score and the second safety score, wherein the third safety score is a comprehensive safety evaluation score of the gasified coal in the gasification process;

[0019] The third determination unit determines that the safety of the gasification system is qualified when the third safety score is not less than a preset threshold, and determines that the safety of the gasification system is unqualified when the third safety score is less than the preset threshold.

[0020] According to another aspect of the present application, an electronic device is provided, comprising: one or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and are configured to be executed by the one or more processors, and the one or more programs include a method for executing any one of the above-mentioned methods for evaluating the gasification safety of gasified coal in a gasification system.

[0021] Applying the technical solution of the present application, the gasification system includes a first system and a second system, the first system at least includes a feeding device, a gasification device and a washing device, and the second system at least includes a coal grinding and pulverizing device and a slag water treatment device. First, a plurality of first process parameters in the first system and a plurality of second process parameters in the second system are obtained; secondly, a plurality of first weight parameters of the plurality of first process parameters are determined, and a first safety score of the first system is calculated at least based on the plurality of first weight parameters; then, a plurality of second weight parameters of the plurality of second process parameters are determined, and a second safety score of the second system is calculated at least based on the plurality of second weight parameters; thirdly, a third safety score is calculated at least based on the first safety score and the second safety score; finally, when the third safety score is not less than When the safety score of the gasification system is less than the preset threshold, it is determined that the safety of the gasification system is qualified; when the third safety score is less than the preset threshold, it is determined that the safety of the gasification system is unqualified. Compared with the prior art, the present application obtains the first safety score of the first system and the second safety score of the second system respectively by determining the first weight parameter of the first process parameter of the first system and the second weight parameter of the second process parameter of the second system in the gasification system, and calculates the comprehensive safety evaluation score of the gasified coal in the gasification process according to the first safety score and the second safety score. When the comprehensive safety evaluation score is not less than the preset threshold, the safety of the gasification system is qualified; when the comprehensive safety evaluation score is greater than the preset threshold, the safety of the gasification system is unqualified, thereby solving the problem that the gasification safety of the gasified coal in the gasification system cannot be evaluated in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting part of the present application are used to provide a further understanding of the present application. The exemplary embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0023] Figure 1 A hardware structure block diagram of a mobile terminal for executing a method for evaluating gasification safety of gasified coal in a gasification system provided in an embodiment of the present application is shown;

[0024] Figure 2 A schematic flow chart of a method for evaluating gasification safety of gasified coal in a gasification system provided according to an embodiment of the present application is shown;

[0025] Figure 3 A schematic diagram showing main units of a first system of a gasification system and various first process parameters of a method for evaluating gasification safety of gasified coal in a gasification system provided in an embodiment of the present application is shown;

[0026] Figure 4A schematic diagram showing main units of a second system of a gasification system and various second process parameters according to a method for evaluating gasification safety of gasified coal in a gasification system provided in an embodiment of the present application is shown;

[0027] Figure 5 A structural block diagram of a device for evaluating the gasification safety of gasified coal in a gasification system provided according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0030] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0031] As introduced in the background technology, the prior art cannot evaluate the gasification safety of gasified coal in a gasification system. To solve the above problem, the embodiments of the present application provide an evaluation method, evaluation device and electronic equipment for the gasification safety of gasified coal in a gasification system.

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0033] The method embodiments provided in the embodiments of the present application can be executed in a mobile terminal, a computer terminal or a similar computing device. Taking running on a mobile terminal as an example, Figure 11 is a hardware structure block diagram of a mobile terminal for evaluating the gasification safety of gasified coal in a gasification system according to an embodiment of the present invention. Figure 1 As shown, the mobile terminal may include one or more ( Figure 1 Only one is shown in the figure) a processor 102 (the processor 102 may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data, wherein the mobile terminal may also include a transmission device 106 and an input / output device 108 for communication functions. It can be understood by those skilled in the art that Figure 1 The structure shown is only for illustration and does not limit the structure of the mobile terminal. Figure 1 More or fewer components as shown, or with Figure 1 Different configurations are shown.

[0034] The memory 104 can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the display method of device information in the embodiment of the present invention. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, that is, the above method is implemented. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include a memory remotely arranged relative to the processor 102, and these remote memories can be connected to the mobile terminal via a network. Examples of the above-mentioned network include but are not limited to the Internet, an intranet, a local area network, a mobile communication network, and a combination thereof. The transmission device 106 is used to receive or send data via a network. The above-mentioned specific examples of the network may include a wireless network provided by a communication provider of the mobile terminal. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, referred to as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 may be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0035] In this embodiment, a method for evaluating the gasification safety of gasified coal in a gasification system is provided, which runs on a mobile terminal, a computer terminal or a similar computing device. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0036] Figure 2 1 is a flow chart of a method for evaluating the gasification safety of gasified coal in a gasification system according to an embodiment of the present application. Figure 2 As shown, the method comprises the following steps:

[0037] Step S201 , obtaining a plurality of first process parameters in the first system and a plurality of second process parameters in the second system, wherein the plurality of first process parameters and the plurality of second process parameters respectively include at least pressure, temperature and current.

[0038] Specifically, the plurality of first process parameters and the plurality of second process parameters include but are not limited to pressure, temperature, flow rate, liquid level, pressure difference, content of each component, current, voltage, etc.

[0039] Specifically, a plant uses an entrained-bed dry pulverized coal gasification process, such as Figure 3 As shown in the figure, the first system of the gasification system and the various first process parameters are shown. The first system is divided into a feeding unit, a gasification unit and a washing unit. The first process parameters of the feeding unit include the carbon dioxide pressure of the coal conveying, the oxygen flow rate, the oxygen temperature, the oxygen pressure, the medium-pressure superheated steam temperature to the burner, the steam pressure, the pulverized coal conveying density, the oxygen pressure and the pressure difference between the gasifier and the pulverized coal feed tank and the burner. The first process parameters of the gasification unit include the quenching chamber liquid level, the quenching water flow rate, the burner cooling water flow rate, the burner cooling water buffer tank liquid level, the gasifier pressure, the gasifier synthesis gas outlet temperature, the bubble liquid level, the bubble circulation water flow rate, the total oxygen-coal ratio and the slag mouth pressure difference. The first process parameters of the washing unit include the washing tower liquid level and the cyclone separator.

[0040] Specifically, a plant uses an entrained-bed dry pulverized coal gasification process, such as Figure 4 As shown in the figure, the second system of the gasification system and each second process parameter are shown. The second system is divided into a coal pulverizing unit and a slag water treatment unit. The second process parameters of the coal pulverizing unit include the vibration rate of the coal pulverizing unit, the pressure difference between the inlet and outlet of the coal pulverizing unit, the outlet pressure of the coal pulverizing unit, the outlet temperature of the coal pulverizing unit, the oxygen content of the hot blast furnace outlet, the outlet temperature of the hot blast furnace, the CO content of the bag filter outlet, and the oxygen content of the bag filter outlet. The second process parameters of the slag water treatment unit include the liquid level of the high-pressure flash separation tank, the liquid level of the low-pressure flash separation tank, the liquid level of the slag pool, the vibration rate of the horizontal screw centrifuge, and the current of the horizontal screw centrifuge.

[0041] Step S202, determining a plurality of first weight parameters of the plurality of first process parameters, and calculating a first safety score of the first system at least based on the plurality of first weight parameters, wherein the plurality of first weight parameters correspond one-to-one to the plurality of first process parameters.

[0042] Specifically, the importance of each first process parameter of the first system of the gasification system to safe operation is analyzed, key safety influencing factors such as temperature, pressure, flow, etc. are identified, and a weight value is assigned to each factor. The size of the weight value reflects the importance ratio of the factor in the safety evaluation.

[0043] Step S203, determining a plurality of second weight parameters of the plurality of second process parameters, and calculating a second safety score of the second system at least based on the plurality of second weight parameters, wherein the plurality of second weight parameters correspond one-to-one to the plurality of second process parameters.

[0044] Specifically, the importance of each second process parameter of the second system of the gasification system to safe operation is analyzed, key safety influencing factors such as temperature, pressure, flow, etc. are identified, and a weight value is assigned to each factor. The size of the weight value reflects the importance ratio of the factor in the safety evaluation.

[0045] Step S204: Calculate a third safety score based on at least the first safety score and the second safety score. The third safety score is a comprehensive safety evaluation score of the gasified coal during the gasification process.

[0046] Specifically, if the safety score of a certain equipment or the first process parameter in the first system is low, even if the score of the second system is very high, it may lead to a decline in the overall comprehensive safety evaluation score. Conversely, if both the first safety score and the second safety score are maintained at a high level, the comprehensive safety evaluation score will also reflect this good status.

[0047] Step S205, when the third safety score is not less than a preset threshold, it is determined that the safety of the gasification system is qualified; when the third safety score is less than the preset threshold, it is determined that the safety of the gasification system is unqualified.

[0048] Specifically, the comprehensive evaluation score can be set to be no less than 90 points to be qualified, otherwise it will be regarded as unqualified.

[0049] In the above embodiment, the gasification system includes a first system and a second system, the first system at least includes a feeding device, a gasification device and a washing device, and the second system at least includes a coal grinding and pulverizing device and a slag water treatment device. First, a plurality of first process parameters in the first system and a plurality of second process parameters in the second system are obtained; secondly, a plurality of first weight parameters of the plurality of first process parameters are determined, and a first safety score of the first system is calculated at least based on the plurality of first weight parameters; then, a plurality of second weight parameters of the plurality of second process parameters are determined, and a second safety score of the second system is calculated at least based on the plurality of second weight parameters; thirdly, a third safety score is calculated at least based on the first safety score and the second safety score; finally, when the third safety score is not less than When the preset threshold is met, the safety of the gasification system is determined to be qualified; when the third safety score is less than the preset threshold, the safety of the gasification system is determined to be unqualified. Compared with the prior art, the present application obtains a first safety score of the first system and a second safety score of the second system respectively by determining a first weight parameter of a first process parameter of the first system and a second weight parameter of a second process parameter of the second system in the gasification system, and calculates a comprehensive safety evaluation score of gasified coal in the gasification process according to the first safety score and the second safety score. When the comprehensive safety evaluation score is not less than the preset threshold, the safety of the gasification system is qualified; when the comprehensive safety evaluation score is greater than the preset threshold, the safety of the gasification system is unqualified, thereby solving the problem that the prior art cannot evaluate the gasification safety of gasified coal in the gasification system.

[0050] In one embodiment of the present application, determining multiple first weight parameters of the multiple first process parameters includes: using a hazard and operability analysis method to determine multiple first risk levels of the multiple first process parameters; and determining multiple first weight parameters of the multiple first process parameters according to the multiple first risk levels, wherein the higher the first risk level, the larger the first weight parameter. In this method, the first weight parameter is set using the risk level determined by the hazard and operability analysis method, thereby further improving the accuracy of the setting of the first weight parameter.

[0051] Specifically, the use of the hazard and operability analysis method to determine the first risk level includes: first, in order to conduct risk analysis logically and effectively, the process should be divided into operating steps according to the operating steps of the process flow chart of the continuous production process. For the continuous production process operation process, the nodes of the hazard and operability analysis are the process units divided according to the production process. For each divided node, the analysis takes the first process parameter during normal operation as a reference value, analyzes the changes in the first process parameter during operation, and thus generates a deviation of the first process parameter; second, the cause of the deviation is determined based on the deviation value, and the severity of the consequences of the deviation and the probability of its occurrence are evaluated; finally, a risk matrix is ​​constructed based on the severity and probability of the consequences of the deviation, wherein the risk matrix is ​​a two-dimensional table, the horizontal axis of the table is the probability of occurrence, the vertical axis is the severity of the consequences, and the first cell in the matrix corresponds to a specific risk level, wherein the risk levels include low risk, medium risk, high risk and extremely high risk.

[0052] Specifically, the sum of the first weight parameters in the first system is 100%, as shown in Table 1, which is a statistical table of multiple first weight parameters of the first system.

[0053] Table 1

[0054]

[0055] In order to make the first safety score more accurate, in an embodiment of the present application, the first safety score of the first system is calculated at least based on the multiple first weight parameters, including: determining multiple first scores, wherein the first score is the safety score of the first process parameter; constructing a first scoring formula, the independent variables of the first scoring formula are the first score and the first weight parameter, and the dependent variable of the first scoring formula is the first safety score; inputting the multiple first scores and the multiple first weight parameters into the first scoring formula to obtain the first safety score of the first system.

[0056] Specifically, the first safety score in the first system is obtained by combining the first weight parameters w i , and obtained the first safety score G of the first gasification system s , the first scoring formula is as follows:

[0057]

[0058] Where y i is the first score, and N is the number of the first process parameters involved.

[0059] In another example, determining a plurality of first scores includes: comparing the plurality of first process parameters with thresholds in a first threshold group to determine the plurality of first scores, wherein the plurality of first scores correspond to the first process parameters one by one, the first threshold group includes a first threshold, a second threshold, a third threshold, a fourth threshold, a fifth threshold and a sixth threshold, the first threshold being a first alarm value when the first process parameter is not within a first normal range, the second threshold being a second alarm value when the first process parameter is not within the first normal range, the third threshold being an upper limit value of the first normal range, the fourth threshold being a lower limit value of the first normal range, the fifth threshold being a third alarm value when the first process parameter is not within the first normal range, the sixth threshold being a fourth alarm value when the first process parameter is not within the first normal range, and the first threshold, the second threshold, the third threshold The threshold, the fourth threshold, the fifth threshold and the sixth threshold decrease in sequence; when the first process parameter is not less than the first threshold and the first process parameter is not greater than the sixth threshold, the first score is determined to be the first score; when the first process parameter is less than the first threshold and not less than the second threshold or the first process parameter is greater than the sixth threshold and not greater than the fifth threshold, the first score is determined to be the second score; when the first process parameter is less than the second threshold and not less than the third threshold or the first process parameter is not greater than the fourth threshold and greater than the fifth threshold, the first score is determined to be the third score; when the first process parameter is less than the third threshold and greater than the fourth threshold, the first score is determined to be the fourth score, and the sizes of the first score, the second score, the third score and the fourth score increase in sequence. In this method, the first score is obtained by comparing the first process parameter with the threshold in the first threshold group, so as to further improve the accuracy of the first score.

[0060] Specifically, as shown in Table 2, the table is a first process parameter scoring standard, wherein HH is a first threshold, H is a second threshold, OH is a third threshold, OL is a fourth threshold, L is a fifth threshold, and LL is a sixth threshold.

[0061] Table 2

[0062]

[0063] In order to further improve the accuracy of the setting of the second weight parameter, in an embodiment of the present application, multiple second weight parameters of the multiple second process parameters are determined, including: using a hazard and operability analysis method to determine multiple second risk levels of the multiple second process parameters; based on the multiple second risk levels, determining multiple second weight parameters of the multiple second process parameters, wherein the higher the second risk level, the larger the second weight parameter.

[0064] Specifically, the use of the hazard and operability analysis method to determine the second risk level includes: first, in order to conduct risk analysis logically and effectively, the process should be divided into operating steps according to the operating steps of the process flow chart of the continuous production process. For the continuous production process operation process, the nodes of the hazard and operability analysis are the process units divided according to the production process. For each divided node, the analysis takes the second process parameter during normal operation as a reference value, analyzes the changes in the second process parameter during operation, and thus generates a deviation of the second process parameter; secondly, the cause of the deviation is determined based on the deviation value, and the severity of the consequences of the deviation and the probability of its occurrence are evaluated; finally, a risk matrix is ​​constructed based on the severity and probability of the consequences of the deviation, wherein the risk matrix is ​​a two-dimensional table, the horizontal axis of the table is the probability of occurrence, the vertical axis is the severity of the consequences, and the first cell in the matrix corresponds to a specific risk level, wherein the risk levels include low risk, medium risk, high risk and extremely high risk.

[0065] Specifically, the sum of the second weight parameters in the second system is 100%, as shown in Table 3, which is a statistical table of multiple first weight parameters of the first system.

[0066] Table 3

[0067]

[0068] In another embodiment, the second safety score of the second system is calculated based on at least a plurality of the second weight parameters, including: determining a plurality of second scores, wherein the second score is a safety score of the second process parameter; constructing a second scoring formula, wherein the independent variables of the second scoring formula are the second score and the second weight parameter, and the dependent variable of the second scoring formula is the second safety score; and inputting the plurality of the second scores and the plurality of the second weight parameters into the second scoring formula to obtain the second safety score of the second system. In this method, by constructing a second scoring formula and inputting the second score and the second weight parameter into the formula, the accuracy of the second safety score is further improved.

[0069] Specifically, the first safety score in the first system is obtained, and each second weight parameter p is combined i, and obtained the second safety score A for the second gasification system s , the second scoring formula is as follows:

[0070]

[0071] Where x i is the second score, and M is the number of the second process parameters involved.

[0072] In order to make the second score more accurate, in one embodiment of the present application, determining multiple second scores includes: comparing the multiple second process parameters with the thresholds in the second threshold group to determine the multiple second scores, wherein the multiple second scores correspond to the second process parameters one by one, the second threshold group includes a seventh threshold, an eighth threshold, a ninth threshold, a tenth threshold, an eleventh threshold and a twelfth threshold, the seventh threshold is the fifth alarm value that the second process parameter is not within the second normal range, the eighth threshold is the sixth alarm value that the second process parameter is not within the second normal range, the ninth threshold is the upper limit value of the second normal range, the tenth threshold is the lower limit value of the second normal range, the eleventh threshold is the seventh alarm value that the second process parameter is not within the second normal range, the twelfth threshold is the eighth alarm value that the second process parameter is not within the second normal range, and the seventh threshold, the eighth threshold, the tenth threshold, the eleventh threshold are the seventh alarm values ​​that the second process parameter is not within the second normal range. The threshold, the ninth threshold, the tenth threshold, the eleventh threshold and the twelfth threshold decrease in sequence; when the second process parameter is not less than the seventh threshold and the second process parameter is not greater than the twelfth threshold, the second score is determined to be the fifth score; when the second process parameter is less than the seventh threshold and not less than the eighth threshold or the first process parameter is greater than the twelfth threshold and not greater than the eleventh threshold, the second score is determined to be the sixth score; when the second process parameter is less than the eighth threshold and not less than the ninth threshold or the second process parameter is not greater than the tenth threshold and greater than the eleventh threshold, the second score is determined to be the seventh score; when the second process parameter is less than the ninth threshold and greater than the tenth threshold, the second score is determined to be the eighth score, and the fifth score, the sixth score, the seventh score and the eighth score increase in sequence.

[0073] Specifically, as shown in Table 4, the table is the second process parameter scoring standard, wherein AA is the seventh threshold, A is the eighth threshold, BA is the ninth threshold, BC is the tenth threshold, C is the eleventh threshold, and CC is the twelfth threshold.

[0074] Table 4

[0075]

[0076] In another embodiment, the third security score is calculated based on at least the first security score and the second security score, including: determining a third weight parameter of the first security score and a fourth weight parameter of the second security score, wherein the third weight parameter and the fourth weight parameter are set according to actual conditions, and the third weight parameter is greater than the fourth weight parameter; constructing a comprehensive scoring formula, wherein the independent variables of the comprehensive scoring formula are the third weight parameter, the fourth weight parameter, the first security score and the second security score, and the dependent variable of the comprehensive scoring formula is the third security score; and inputting the third weight parameter, the fourth weight parameter, the first security score and the second security score into the comprehensive scoring formula to obtain the third security score. In this method, the third security score is obtained by constructing a comprehensive scoring formula, and the third weight parameter, the fourth weight parameter, the first security score and the second security score are input into the comprehensive scoring formula, thereby further making the third security score more accurate.

[0077] Specifically, the third safety score is obtained by combining the third weight parameter of the first safety score and the fourth weight parameter of the second safety score, wherein the comprehensive score formula is:

[0078] S t =G s ×The third weight parameter + A s × The fourth weight parameter, the third safety score S t It is a positive number in percentage and a positive indicator. The larger the value, the higher the safety evaluation of the gasification system.

[0079] Specifically, combined with the first process parameter and the second process parameter of a gasified coal in the gasification system, and setting the third weight parameter of the first system to 80% and the fourth weight parameter of the second system to 20%, the third safety score of the gasified coal is shown in Table 5. It can be seen from Table 5 that the third safety score of the gasified coal in the gasification process is 97 points, indicating that the gasified coal has a good match with the gasification process and high safety. From the first system score and the second system score, the second system scored full marks, indicating that the second system has high safety, while the first system scored 77 points, which has room for improvement compared with its total score of 80 points. After analysis, the first process parameter with poor scores is the pressure difference between the oxygen outlet of the oxygen preheater and the gasifier and the pressure difference at the slag port of the gasifier. The main reason for the low score of the pressure difference between the oxygen outlet of the oxygen preheater and the gasifier is that the operating data of the parameter is greater than the upper limit of its control range. This is because the pressure of the gasifier is controlled by the downstream methanol synthesis unit, resulting in the operating pressure of the gasifier being lower than the original design value, causing the operating data of the parameter to be greater than its upper limit of control. The reason for the low score of the gasifier slag port differential pressure is that the gasifier slag port differential pressure operating data is lower than the lower limit of the control range set in the alarm list. Therefore, it is recommended to adjust the reasonable upper and lower limits of the control range according to the pressure required for downstream operation.

[0080] Table 5

[0081] Gasification main system Gasification auxiliary system Total score 77.00 20.00 97.00

[0082] In order to enable those skilled in the art to more clearly understand the technical solution of the present application, the implementation process of the method for evaluating the gasification safety of gasified coal in a gasification system of the present application will be described in detail below in conjunction with specific embodiments.

[0083] This embodiment relates to a specific method for evaluating the gasification safety of gasified coal in a gasification system, comprising the following steps:

[0084] Step 1: setting the weight ratio of the first system and the second system, which are the third weight parameter and the fourth weight parameter, respectively, and the first weight parameter of the first process parameter of the first system and the second weight parameter of the second process parameter of the second system;

[0085] Step 2: according to the gasification process design basis, setting a first threshold value group of the first process parameter and a second threshold value group of the second process parameter;

[0086] Step 3: Determine a first score according to the first threshold group;

[0087] Step 4: Determine a second score according to the second threshold group;

[0088] Step 5: Determine a first safety score according to the first score and the first weight parameter;

[0089] Step 6: Determine a second safety score according to the second score and the second weight parameter;

[0090] Step 7: Determine a third safety score according to the third weight parameter, the fourth weight parameter, the first safety score, and the second safety score.

[0091] Step 8: When the third safety score is not less than the preset threshold, it is determined that the safety of the gasification system is qualified; when the third safety score is less than the preset threshold, it is determined that the safety of the gasification system is unqualified.

[0092] It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and that, although a logical order is shown in the flowcharts, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0093] The embodiment of the present application also provides an evaluation device for the gasification safety of gasified coal in a gasification system. It should be noted that the evaluation device for the gasification safety of gasified coal in a gasification system in the embodiment of the present application can be used to execute the evaluation method for the gasification safety of gasified coal in a gasification system provided in the embodiment of the present application. The device is used to implement the above-mentioned embodiments and preferred implementation modes, and those that have been described will not be repeated. As used below, the term "module" can implement a combination of software and / or hardware for a predetermined function. Although the device described in the following embodiments is preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceived.

[0094] The following is an introduction to the evaluation device for the gasification safety of gasified coal in a gasification system provided in an embodiment of the present application.

[0095] Figure 5 Schematic diagram of a device for evaluating the gasification safety of gasified coal in a gasification system according to an embodiment of the present application. Figure 5 As shown, the gasification system includes a first system and a second system. The first system includes at least a feed unit device, a gasification device and a washing device. The second system includes at least a coal pulverizing device and a slag water treatment device. The device includes:

[0096] The acquisition unit 10 acquires a plurality of first process parameters in the first system and a plurality of second process parameters in the second system, wherein the plurality of first process parameters and the plurality of second process parameters respectively include at least pressure, temperature and current.

[0097] Specifically, the plurality of first process parameters and the plurality of second process parameters include but are not limited to pressure, temperature, flow rate, liquid level, pressure difference, content of each component, current, voltage, etc.

[0098] The first determination unit 20 determines a plurality of first weight parameters of the plurality of first process parameters, and calculates a first safety score of the first system at least based on the plurality of first weight parameters, wherein the plurality of first weight parameters correspond one-to-one to the plurality of first process parameters.

[0099] Specifically, the importance of various process parameters of the first system of the gasification system to safe operation is analyzed, key safety influencing factors such as temperature, pressure, flow, etc. are identified, and a weight value is assigned to each factor. The size of the weight value reflects the importance ratio of the factor in the safety evaluation.

[0100] The second determination unit 30 determines a plurality of second weight parameters of the plurality of second process parameters, and calculates a second safety score of the second system at least based on the plurality of second weight parameters, wherein the plurality of second weight parameters correspond one-to-one to the plurality of second process parameters.

[0101] Specifically, the importance of various process parameters of the second system of the gasification system to safe operation is analyzed, key safety influencing factors such as temperature, pressure, flow, etc. are identified, and a weight value is assigned to each factor. The size of the weight value reflects the importance ratio of the factor in the safety evaluation.

[0102] The calculation unit 40 calculates a third safety score based on at least the first safety score and the second safety score, wherein the third safety score is a comprehensive safety evaluation score of the gasified coal during the gasification process.

[0103] Specifically, if the safety score of a certain equipment or the first process parameter in the first system is low, even if the score of the second system is very high, it may lead to a decline in the overall comprehensive safety evaluation score. Conversely, if both the first safety score and the second safety score are maintained at a high level, the comprehensive safety evaluation score will also reflect this good status.

[0104] The third determination unit 50 determines that the safety of the gasification system is qualified when the third safety score is not less than a preset threshold, and determines that the safety of the gasification system is unqualified when the third safety score is less than the preset threshold.

[0105] Specifically, the comprehensive evaluation score can be set to be no less than 90 points to be qualified, otherwise it will be regarded as unqualified.

[0106] In the above embodiment, the gasification system includes a first system and a second system, the first system at least includes a feeding device, a gasification device and a washing device, and the second system at least includes a coal grinding and pulverizing device and a slag water treatment device. First, a plurality of first process parameters in the first system and a plurality of second process parameters in the second system are obtained; secondly, a plurality of first weight parameters of the plurality of first process parameters are determined, and a first safety score of the first system is calculated at least based on the plurality of first weight parameters; then, a plurality of second weight parameters of the plurality of second process parameters are determined, and a second safety score of the second system is calculated at least based on the plurality of second weight parameters; thirdly, a third safety score is calculated at least based on the first safety score and the second safety score; finally, when the third safety score is not less than When the preset threshold is met, the safety of the gasification system is determined to be qualified; when the third safety score is less than the preset threshold, the safety of the gasification system is determined to be unqualified. Compared with the prior art, the present application obtains a first safety score of the first system and a second safety score of the second system respectively by determining a first weight parameter of a first process parameter of the first system and a second weight parameter of a second process parameter of the second system in the gasification system, and calculates a comprehensive safety evaluation score of gasified coal in the gasification process according to the first safety score and the second safety score. When the comprehensive safety evaluation score is not less than the preset threshold, the safety of the gasification system is qualified; when the comprehensive safety evaluation score is greater than the preset threshold, the safety of the gasification system is unqualified, thereby solving the problem that the prior art cannot evaluate the gasification safety of gasified coal in the gasification system.

[0107] In one embodiment of the present application, the first determination unit includes a first determination module and a second determination module, wherein the first determination module is used to determine a plurality of first risk levels of the plurality of first process parameters using a hazard and operability analysis method; the second determination module is used to determine a plurality of first weight parameters of the plurality of first process parameters based on the plurality of first risk levels, wherein the higher the first risk level, the greater the first weight parameter. In this solution, the first weight parameter is set using the risk level determined by the hazard and operability analysis method, thereby further improving the accuracy of the setting of the first weight parameter.

[0108] Specifically, the use of the hazard and operability analysis method to determine the first risk level includes: first, in order to conduct risk analysis logically and effectively, the process should be divided into operating steps according to the operating steps of the process flow chart of the continuous production process. For the continuous production process operation process, the nodes of the hazard and operability analysis are the process units divided according to the production process. For each divided node, the analysis takes the first process parameter during normal operation as a reference value, analyzes the changes in the first process parameter during operation, and thus generates a deviation of the first process parameter; second, the cause of the deviation is determined based on the deviation value, and the severity of the consequences of the deviation and the probability of its occurrence are evaluated; finally, a risk matrix is ​​constructed based on the severity and probability of the consequences of the deviation, wherein the risk matrix is ​​a two-dimensional table, the horizontal axis of the table is the probability of occurrence, the vertical axis is the severity of the consequences, and the first cell in the matrix corresponds to a specific risk level, wherein the risk levels include low risk, medium risk, high risk and extremely high risk.

[0109] Specifically, the sum of the first weight parameters in the first system is 100%.

[0110] In order to make the first safety score more accurate, in one embodiment of the present application, the first determination unit includes a third determination module, a first construction module and a first input module, wherein the third determination module is used to determine multiple first scores, wherein the above-mentioned first score is the safety score of the above-mentioned first process parameter; the construction module is used to construct a first scoring formula, the independent variables of the above-mentioned first scoring formula are the above-mentioned first score and the above-mentioned first weight parameter, and the dependent variable of the above-mentioned first scoring formula is the above-mentioned first safety score; the first input module is used to input the above-mentioned multiple first scores and the above-mentioned multiple first weight parameters into the above-mentioned first scoring formula to obtain the above-mentioned first safety score of the above-mentioned first system.

[0111] Specifically, the first safety score in the first system is obtained by combining the first weight parameters w i , and obtained the first safety score G of the first gasification system s , the first scoring formula is as follows:

[0112]

[0113] Where y i is the first score, and N is the number of the first process parameters involved.

[0114] In another example, the third determination module includes a first comparison submodule, a first determination submodule, a second determination submodule, a third determination submodule and a fourth determination submodule, wherein the first comparison submodule is used to compare the plurality of the first process parameters with the thresholds in the first threshold group to determine the plurality of the first scores, wherein the plurality of the first scores correspond one-to-one to the first process parameters, the first threshold group includes a first threshold, a second threshold, a third threshold, a fourth threshold, a fifth threshold and a sixth threshold, the first threshold is a first alarm value that the first process parameter is not within the first normal range, the second threshold is a second alarm value that the first process parameter is not within the first normal range, the third threshold is an upper limit value of the first normal range, the fourth threshold is a lower limit value of the first normal range, the fifth threshold is a third alarm value that the first process parameter is not within the first normal range, the sixth threshold is a fourth alarm value that the first process parameter is not within the first normal range, and the first threshold, the second threshold The value, the third threshold, the fourth threshold, the fifth threshold and the sixth threshold decrease in sequence; the first determination submodule is used to determine that the first score is the first score when the first process parameter is not less than the first threshold and the first process parameter is not greater than the sixth threshold; the second determination submodule is used to determine that the first score is the second score when the first process parameter is less than the first threshold and not less than the second threshold or the first process parameter is greater than the sixth threshold and not greater than the fifth threshold; the third determination submodule is used to determine that the first score is the third score when the first process parameter is less than the second threshold and not less than the third threshold or the first process parameter is not greater than the fourth threshold and greater than the fifth threshold; the fourth determination submodule is used to determine that the first score is the fourth score when the first process parameter is less than the third threshold and greater than the fourth threshold, and the sizes of the first score, the second score, the third score and the fourth score increase in sequence. In this scheme, the first score is obtained by comparing the first process parameter with the threshold in the first threshold group, and the accuracy of the first score is further improved.

[0115] In order to further improve the accuracy of the setting of the second weight parameter, in one embodiment of the present application, the second determination unit includes a fourth determination module and a fifth determination module, wherein the fourth determination module is used to determine multiple second risk levels of the multiple second process parameters by using the hazard and operability analysis method; the fifth determination module is used to determine multiple second weight parameters of the multiple second process parameters according to the multiple second risk levels, wherein the higher the second risk level, the larger the second weight parameter.

[0116] Specifically, the use of the hazard and operability analysis method to determine the second risk level includes: first, in order to conduct risk analysis logically and effectively, the process should be divided into operating steps according to the operating steps of the process flow chart of the continuous production process. For the continuous production process operation process, the nodes of the hazard and operability analysis are the process units divided according to the production process. For each divided node, the analysis takes the second process parameter during normal operation as a reference value, analyzes the changes in the second process parameter during operation, and thus generates a deviation of the second process parameter; secondly, the cause of the deviation is determined based on the deviation value, and the severity of the consequences of the deviation and the probability of its occurrence are evaluated; finally, a risk matrix is ​​constructed based on the severity and probability of the consequences of the deviation, wherein the risk matrix is ​​a two-dimensional table, the horizontal axis of the table is the probability of occurrence, the vertical axis is the severity of the consequences, and the first cell in the matrix corresponds to a specific risk level, wherein the risk levels include low risk, medium risk, high risk and extremely high risk.

[0117] In another embodiment, the second determination unit includes a sixth determination module, a second construction module, and a second input module, wherein the sixth determination module is used to determine a plurality of second scores, wherein the second score is a safety score of the second process parameter; the second construction module is used to construct a second scoring formula, wherein the independent variables of the second scoring formula are the second score and the second weight parameter, and the dependent variable of the second scoring formula is the second safety score; the second input module is used to input the plurality of second scores and the plurality of second weight parameters into the second scoring formula to obtain the second safety score of the second system. In this solution, by constructing the second scoring formula and inputting the second score and the second weight parameter into the formula, the accuracy of the second safety score is further improved.

[0118] Specifically, the first safety score in the first system is obtained, and each second weight parameter p is combined i , and obtained the second safety score A for the second gasification system s , the second scoring formula is as follows:

[0119]

[0120] Where x i is the second score, and M is the number of the second process parameters involved.

[0121] In order to make the second score more accurate, in one embodiment of the present application, the sixth determination module includes a second comparison submodule, a fifth determination submodule, a sixth determination submodule, a seventh determination submodule and an eighth determination submodule, wherein the second comparison submodule is used to compare the plurality of the second process parameters with the thresholds in the second threshold group to determine the plurality of the second scores, wherein the plurality of the second scores correspond one-to-one to the second process parameters, the second threshold group includes a seventh threshold, an eighth threshold, a ninth threshold, a tenth threshold, an eleventh threshold and a twelfth threshold, the seventh threshold is the fifth alarm value that the second process parameter is not within the second normal range, the eighth threshold is the sixth alarm value that the second process parameter is not within the second normal range, the ninth threshold is the upper limit value of the second normal range, the tenth threshold is the lower limit value of the second normal range, the eleventh threshold is the seventh alarm value that the second process parameter is not within the second normal range, the twelfth threshold is the eighth alarm value that the second process parameter is not within the second normal range, and the seventh threshold is the eighth alarm value that the second process parameter is not within the second normal range. The value, the eighth threshold value, the ninth threshold value, the tenth threshold value, the eleventh threshold value and the twelfth threshold value decrease in sequence; the fifth determining submodule is used to determine that the second score is the fifth score when the second process parameter is not less than the seventh threshold value and the second process parameter is not greater than the twelfth threshold value; the sixth determining submodule is used to determine that the second score is the sixth score when the second process parameter is less than the seventh threshold value and not less than the eighth threshold value or the first process parameter is greater than the twelfth threshold value and not greater than the eleventh threshold value; the seventh determining submodule is used to determine that the second score is the seventh score when the second process parameter is less than the eighth threshold value and not less than the ninth threshold value or the second process parameter is not greater than the tenth threshold value and greater than the eleventh threshold value; the eighth determining submodule is used to determine that the second score is the eighth score when the second process parameter is less than the ninth threshold value and greater than the tenth threshold value, and the sizes of the fifth score, the sixth score, the seventh score and the eighth score increase in sequence.

[0122] In another embodiment, the calculation unit includes a seventh determination module, a third construction module and a third input module, wherein the seventh determination module is used to determine the third weight parameter of the first safety score and the fourth weight parameter of the second safety score, the third weight parameter and the fourth weight parameter are set according to actual conditions, and the third weight parameter is greater than the fourth weight parameter; the third construction module is used to construct a comprehensive scoring formula, the independent variables of the comprehensive scoring formula are the third weight parameter, the fourth weight parameter, the first safety score and the second safety score, and the dependent variable of the comprehensive scoring formula is the third safety score; the third input module is used to input the third weight parameter, the fourth weight parameter, the first safety score and the second safety score into the comprehensive scoring formula to obtain the third safety score. In this solution, by constructing a comprehensive scoring formula and inputting the third weight parameter, the fourth weight parameter, the first safety score and the second safety score into the comprehensive scoring formula, the third safety score is obtained, which further makes the third safety score more accurate.

[0123] Specifically, the third safety score is obtained by combining the third weight parameter of the first safety score and the fourth weight parameter of the second safety score, wherein the comprehensive score formula is:

[0124] S t =G s ×The third weight parameter + A s × The fourth weight parameter, the third safety score S t It is a positive number in percentage and a positive indicator. The larger the value, the higher the safety evaluation of the gasification system.

[0125] The above-mentioned gasification safety evaluation device of gasified coal in a gasification system includes a processor and a memory, and the above-mentioned acquisition unit, the first determination unit, the second determination unit calculation unit and the third determination unit are all stored in the memory as program units, and the processor executes the above-mentioned program units stored in the memory to realize corresponding functions. The above-mentioned modules are all located in the same processor; or, the above-mentioned modules are located in different processors in the form of any combination.

[0126] The processor includes a kernel, which retrieves the corresponding program unit from the memory. One or more kernels can be provided, and the problem that the gasification safety of gasified coal in the gasification system cannot be evaluated in the prior art is solved by adjusting the kernel parameters.

[0127] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM, and the memory includes at least one memory chip.

[0128] An embodiment of the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium includes a stored program, wherein when the program is executed, the device where the computer-readable storage medium is located is controlled to execute the method for evaluating the gasification safety of gasified coal in a gasification system, the method comprising:

[0129] Step S201 , obtaining a plurality of first process parameters in the first system and a plurality of second process parameters in the second system, wherein the plurality of first process parameters and the plurality of second process parameters respectively include at least pressure, temperature and current.

[0130] Step S202, determining a plurality of first weight parameters of the plurality of first process parameters, and calculating a first safety score of the first system at least based on the plurality of first weight parameters, wherein the plurality of first weight parameters correspond one-to-one to the plurality of first process parameters.

[0131] Step S203, determining a plurality of second weight parameters of the plurality of second process parameters, and calculating a second safety score of the second system at least based on the plurality of second weight parameters, wherein the plurality of second weight parameters correspond one-to-one to the plurality of second process parameters.

[0132] Step S204: Calculate a third safety score based on at least the first safety score and the second safety score. The third safety score is a comprehensive safety evaluation score of the gasified coal during the gasification process.

[0133] Step S205, when the third safety score is not less than a preset threshold, it is determined that the safety of the gasification system is qualified; when the third safety score is less than the preset threshold, it is determined that the safety of the gasification system is unqualified.

[0134] An embodiment of the present invention provides a processor, the processor is used to run a program, wherein when the program is run, the method for evaluating the gasification safety of gasified coal in a gasification system is executed, the method comprising:

[0135] Step S201 , obtaining a plurality of first process parameters in the first system and a plurality of second process parameters in the second system, wherein the plurality of first process parameters and the plurality of second process parameters respectively include at least pressure, temperature and current.

[0136] Step S202, determining a plurality of first weight parameters of the plurality of first process parameters, and calculating a first safety score of the first system at least based on the plurality of first weight parameters, wherein the plurality of first weight parameters correspond one-to-one to the plurality of first process parameters.

[0137] Step S203, determining a plurality of second weight parameters of the plurality of second process parameters, and calculating a second safety score of the second system at least based on the plurality of second weight parameters, wherein the plurality of second weight parameters correspond one-to-one to the plurality of second process parameters.

[0138] Step S204: Calculate a third safety score based on at least the first safety score and the second safety score. The third safety score is a comprehensive safety evaluation score of the gasified coal during the gasification process.

[0139] Step S205, when the third safety score is not less than a preset threshold, it is determined that the safety of the gasification system is qualified; when the third safety score is less than the preset threshold, it is determined that the safety of the gasification system is unqualified.

[0140] An embodiment of the present invention provides a device, the device including a processor, a memory, and a program stored in the memory and executable on the processor, and when the processor executes the program, at least the following steps are implemented:

[0141] Step S201 , obtaining a plurality of first process parameters in the first system and a plurality of second process parameters in the second system, wherein the plurality of first process parameters and the plurality of second process parameters respectively include at least pressure, temperature and current.

[0142] Step S202, determining a plurality of first weight parameters of the plurality of first process parameters, and calculating a first safety score of the first system at least based on the plurality of first weight parameters, wherein the plurality of first weight parameters correspond one-to-one to the plurality of first process parameters.

[0143] Step S203, determining a plurality of second weight parameters of the plurality of second process parameters, and calculating a second safety score of the second system at least based on the plurality of second weight parameters, wherein the plurality of second weight parameters correspond one-to-one to the plurality of second process parameters.

[0144] Step S204: Calculate a third safety score based on at least the first safety score and the second safety score. The third safety score is a comprehensive safety evaluation score of the gasified coal during the gasification process.

[0145] Step S205, when the third safety score is not less than a preset threshold, it is determined that the safety of the gasification system is qualified; when the third safety score is less than the preset threshold, it is determined that the safety of the gasification system is unqualified.

[0146] The devices in this article can be servers, PCs, PADs, mobile phones, etc.

[0147] The present application also provides a computer program product, which, when executed on a data processing device, is suitable for executing a program for initializing at least the following method steps:

[0148] Step S201 , obtaining a plurality of first process parameters in the first system and a plurality of second process parameters in the second system, wherein the plurality of first process parameters and the plurality of second process parameters respectively include at least pressure, temperature and current.

[0149] Step S202, determining a plurality of first weight parameters of the plurality of first process parameters, and calculating a first safety score of the first system at least based on the plurality of first weight parameters, wherein the plurality of first weight parameters correspond one-to-one to the plurality of first process parameters.

[0150] Step S203, determining a plurality of second weight parameters of the plurality of second process parameters, and calculating a second safety score of the second system at least based on the plurality of second weight parameters, wherein the plurality of second weight parameters correspond one-to-one to the plurality of second process parameters.

[0151] Step S204: Calculate a third safety score based on at least the first safety score and the second safety score. The third safety score is a comprehensive safety evaluation score of the gasified coal during the gasification process.

[0152] Step S205, when the third safety score is not less than a preset threshold, it is determined that the safety of the gasification system is qualified; when the third safety score is less than the preset threshold, it is determined that the safety of the gasification system is unqualified.

[0153] Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general computing device, they can be concentrated on a single computing device, or distributed on a network composed of multiple computing devices, they can be implemented by a program code executable by a computing device, so that they can be stored in a storage device and executed by the computing device, and in some cases, the steps shown or described can be executed in a different order than here, or they can be made into individual integrated circuit modules, or multiple modules or steps therein can be made into a single integrated circuit module for implementation. Thus, the present invention is not limited to any specific combination of hardware and software.

[0154] 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 in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0155] 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.

[0156] 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 including 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.

[0157] 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.

[0158] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0159] 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.

[0160] 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 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.

[0161] 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.

[0162] From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects:

[0163] In the above embodiment, the gasification system includes a first system and a second system, the first system at least includes a feeding device, a gasification device and a washing device, and the second system at least includes a coal grinding and pulverizing device and a slag water treatment device. First, a plurality of first process parameters in the first system and a plurality of second process parameters in the second system are obtained; secondly, a plurality of first weight parameters of the plurality of first process parameters are determined, and a first safety score of the first system is calculated at least based on the plurality of first weight parameters; then, a plurality of second weight parameters of the plurality of second process parameters are determined, and a second safety score of the second system is calculated at least based on the plurality of second weight parameters; thirdly, a third safety score is calculated at least based on the first safety score and the second safety score; finally, when the third safety score is not less than When the preset threshold is met, the safety of the gasification system is determined to be qualified; when the third safety score is less than the preset threshold, the safety of the gasification system is determined to be unqualified. Compared with the prior art, the present application obtains a first safety score of the first system and a second safety score of the second system respectively by determining a first weight parameter of a first process parameter of the first system and a second weight parameter of a second process parameter of the second system in the gasification system, and calculates a comprehensive safety evaluation score of gasified coal in the gasification process according to the first safety score and the second safety score. When the comprehensive safety evaluation score is not less than the preset threshold, the safety of the gasification system is qualified; when the comprehensive safety evaluation score is greater than the preset threshold, the safety of the gasification system is unqualified, thereby solving the problem that the prior art cannot evaluate the gasification safety of gasified coal in the gasification system.

[0164] The above are only preferred 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 modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method for evaluating the gasification safety of gasified coal in a gasification system, characterized in that: The gasification system includes a first system and a second system, the first system includes at least a feeding device, a gasification device and a washing device, the second system includes at least a coal pulverizing device and a slag water treatment device, and the evaluation method includes: Acquire a plurality of first process parameters in the first system and a plurality of second process parameters in the second system, wherein the plurality of first process parameters and the plurality of second process parameters respectively include at least pressure, temperature and current; Determining a plurality of first weight parameters of the plurality of first process parameters, and calculating a first safety score of the first system at least based on the plurality of first weight parameters, wherein the plurality of first weight parameters correspond one-to-one to the plurality of first process parameters; Determining a plurality of second weight parameters of the plurality of second process parameters, and calculating a second safety score of the second system at least based on the plurality of second weight parameters, wherein the plurality of second weight parameters correspond one-to-one to the plurality of second process parameters; Calculating a third safety score based at least on the first safety score and the second safety score, wherein the third safety score is a comprehensive safety evaluation score of the gasified coal in the gasification process; When the third safety score is not less than a preset threshold, it is determined that the safety of the gasification system is qualified; when the third safety score is less than a preset threshold, it is determined that the safety of the gasification system is unqualified.

2. The method for evaluating gasification safety of gasified coal in a gasification system according to claim 1, characterized in that: Determining a plurality of first weight parameters of a plurality of the first process parameters comprises: Determining a plurality of first risk levels of a plurality of the first process parameters using a hazard and operability analysis method; A plurality of first weight parameters of a plurality of first process parameters are determined according to a plurality of the first risk levels, wherein the higher the first risk level is, the greater the first weight parameter is.

3. The method for evaluating gasification safety of gasified coal in a gasification system according to claim 1, characterized in that: and calculating a first safety score of the first system at least according to the plurality of the first weight parameters, including: determining a plurality of first scores, wherein the first scores are safety scores of the first process parameters; Constructing a first scoring formula, wherein the independent variables of the first scoring formula are the first score and the first weight parameter, and the dependent variable of the first scoring formula is the first safety score; A plurality of the first scores and a plurality of the first weight parameters are input into the first score formula to obtain the first safety score of the first system.

4. The method for evaluating gasification safety of gasified coal in a gasification system according to claim 3, characterized in that: Multiple first scores are determined, including: Compare a plurality of the first process parameters with thresholds in a first threshold group to determine a plurality of the first scores, wherein the plurality of the first scores correspond to the first process parameters one by one, the first threshold group includes a first threshold, a second threshold, a third threshold, a fourth threshold, a fifth threshold and a sixth threshold, the first threshold is a first alarm value when the first process parameter is not within a first normal range, the second threshold is a second alarm value when the first process parameter is not within the first normal range, the third threshold is an upper limit value of the first normal range, the fourth threshold is a lower limit value of the first normal range, the fifth threshold is a third alarm value when the first process parameter is not within the first normal range, and the sixth threshold is a fourth alarm value when the first process parameter is not within the first normal range, and the first threshold, the second threshold, the third threshold, the fourth threshold, the fifth threshold and the sixth threshold decrease in sequence; When the first process parameter is not less than the first threshold and the first process parameter is not greater than the sixth threshold, determining the first score to be a first score; When the first process parameter is less than the first threshold value and not less than the second threshold value or the first process parameter is greater than the sixth threshold value and not greater than the fifth threshold value, determining the first score to be a second score; When the first process parameter is less than the second threshold and not less than the third threshold or the first process parameter is not greater than the fourth threshold and greater than the fifth threshold, determining the first score to be a third score; When the first process parameter is less than the third threshold and greater than the fourth threshold, the first score is determined to be a fourth score, and the first score, the second score, the third score and the fourth score increase in order.

5. The method for evaluating gasification safety of gasified coal in a gasification system according to claim 1, characterized in that: Determining a plurality of second weight parameters of a plurality of the second process parameters comprises: Determining a plurality of second risk levels of a plurality of the second process parameters using a hazard and operability analysis method; A plurality of second weight parameters of a plurality of second process parameters are determined according to a plurality of the second risk levels, wherein the higher the second risk level is, the greater the second weight parameter is.

6. The method for evaluating gasification safety of gasified coal in a gasification system according to claim 1, characterized in that: and calculating a second safety score of the second system at least according to the plurality of the second weight parameters, including: determining a plurality of second scores, wherein the second scores are safety scores of the second process parameters; Constructing a second scoring formula, wherein the independent variables of the second scoring formula are the second score and the second weight parameter, and the dependent variable of the second scoring formula is the second safety score; A plurality of the second scores and a plurality of the second weight parameters are input into the second score formula to obtain the second safety score of the second system.

7. The method for evaluating gasification safety of gasified coal in a gasification system according to claim 1, characterized in that: A plurality of second scores are determined, including: comparing a plurality of the second process parameters with thresholds in a second threshold group to determine a plurality of the second scores, wherein the plurality of the second scores correspond one-to-one to the second process parameters, the second threshold group comprises a seventh threshold, an eighth threshold, a ninth threshold, a tenth threshold, an eleventh threshold and a twelfth threshold, the seventh threshold being a fifth alarm value for the second process parameter not being within a second normal range, the eighth threshold being a sixth alarm value for the second process parameter not being within a second normal range, the ninth threshold being an upper limit value for the second normal range, the tenth threshold being a lower limit value for the second normal range, the eleventh threshold being a seventh alarm value for the second process parameter not being within a second normal range, the twelfth threshold being an eighth alarm value for the second process parameter not being within a second normal range, and the seventh threshold, the eighth threshold, the ninth threshold, the tenth threshold, the eleventh threshold and the twelfth threshold being decreasing in sequence; When the second process parameter is not less than the seventh threshold and the second process parameter is not greater than the twelfth threshold, determining the second score to be a fifth score; When the second process parameter is less than the seventh threshold value and not less than the eighth threshold value or the first process parameter is greater than the twelfth threshold value and not greater than the eleventh threshold value, determining the second score to be a sixth score; When the second process parameter is less than the eighth threshold value and not less than the ninth threshold value or the second process parameter is not greater than the tenth threshold value and greater than the eleventh threshold value, determining the second score to be a seventh score; When the second process parameter is less than the ninth threshold and greater than the tenth threshold, the second score is determined to be the eighth score, and the fifth score, the sixth score, the seventh score and the eighth score increase in order.

8. The method for evaluating gasification safety of gasified coal in a gasification system according to claim 1, characterized in that: Calculating a third security score based on at least the first security score and the second security score includes: Determine a third weight parameter of the first safety score and a fourth weight parameter of the second safety score, wherein the third weight parameter and the fourth weight parameter are set according to actual conditions, and the third weight parameter is greater than the fourth weight parameter; Constructing a comprehensive scoring formula, wherein the independent variables of the comprehensive scoring formula are the third weight parameter, the fourth weight parameter, the first safety score and the second safety score, and the dependent variable of the comprehensive scoring formula is the third safety score; The third weight parameter, the fourth weight parameter, the first safety score, and the second safety score are input into the comprehensive scoring formula to obtain the third safety score.

9. A device for evaluating the gasification safety of gasified coal in a gasification system, characterized in that: The gasification system includes a first system and a second system, wherein the first system includes at least a feed unit device, a gasification device and a washing device, and the second system includes at least a coal pulverizing device and a slag water treatment device. The evaluation device includes: An acquisition unit, which acquires a plurality of first process parameters in the first system and a plurality of second process parameters in the second system, wherein the plurality of first process parameters and the plurality of second process parameters respectively include at least pressure, temperature and current; a first determining unit, determining a plurality of first weight parameters of a plurality of the first process parameters, and calculating a first safety score of the first system at least based on the plurality of the first weight parameters, wherein the plurality of the first weight parameters correspond one-to-one to the plurality of the first process parameters; a second determination unit, determining a plurality of second weight parameters of the plurality of second process parameters, and calculating a second safety score of the second system at least based on the plurality of second weight parameters, wherein the plurality of second weight parameters correspond one-to-one to the plurality of second process parameters; a calculation unit, calculating a third safety score based at least on the first safety score and the second safety score, wherein the third safety score is a comprehensive safety evaluation score of the gasified coal in the gasification process; The third determination unit determines that the safety of the gasification system is qualified when the third safety score is not less than a preset threshold, and determines that the safety of the gasification system is unqualified when the third safety score is less than the preset threshold.

10. An electronic device, characterized in that: include: One or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and are configured to be executed by the one or more processors, and the one or more programs include a method for evaluating the gasification safety of gasified coal in a gasification system according to any one of claims 1 to 8.

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