Fire control method, processor and storage medium for oil-immersed transformer

Abstract

The embodiment of the present application provides a fire control method, processor and machine-readable storage medium for oil-immersed transformers. The method includes: calling a fire control scheme database; obtaining real-time environmental parameters around the oil-immersed transformer when a fire occurs; calculating real-time fire state parameters using a preset formula according to the real-time environmental parameters; matching a fire control scheme corresponding to the fire state parameters from a fire control scheme database according to the real-time fire state parameters; and controlling the fire of the oil-immersed transformer according to the fire control scheme. Since the size of the fire can be quantitatively calculated and a matching fire control scheme can be selected, damage to the oil-immersed transformer caused by blindly using the fire control scheme is avoided, while ensuring the success rate of fire prevention and control.

Description

Technical Field

[0001] The present application relates to the technical field of power systems, and in particular to a fire control method, a processor, and a machine-readable storage medium for an oil-immersed transformer. Background Art

[0002] Oil-immersed power transformers are widely used in power systems and are important equipment for power conversion. The reliability, stability and safety of their operation are crucial. Oil-immersed power transformers contain several tons to hundreds of tons of hydrocarbon insulating mineral oil, with a combustion calorific value of up to 40MJ / kg and an oil fire temperature of over 1400°C, making it extremely difficult to extinguish. Once a fire occurs, it is very likely to cause an explosion, resulting in serious economic losses such as burning of important equipment and large-scale power outages, and even personal safety accidents.

[0003] At present, the prevention and control measures for oil-immersed transformer fires mainly include passive defense methods such as oil drainage and nitrogen injection and active defense methods such as fixed water spray, fine water mist, foam fire extinguishing system, fire monitor, compressed air foam system, mobile water bubble truck, and aerial fire truck. However, when a fire occurs, due to the inability to quantify the size of the fire, people can only blindly choose the fire extinguishing method, which is not only easy to cause damage to the transformer, but also cannot guarantee the success rate of prevention and control. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a fire control method, a processor and a machine-readable storage medium for an oil-immersed transformer.

[0005] In order to achieve the above-mentioned object, the first aspect of the present application provides a fire control method for an oil-immersed transformer, comprising:

[0006] Call the fire control solution database;

[0007] Obtain real-time environmental parameters around the oil-immersed transformer when a fire occurs;

[0008] According to the real-time environmental parameters, the real-time fire status parameters are calculated using the preset formula;

[0009] According to the real-time fire state parameters, a fire control plan corresponding to the fire state parameters is matched from the fire control plan database;

[0010] Control the fire of oil-immersed transformers according to the fire control plan.

[0011] In an embodiment of the present application, the method further includes:

[0012] According to the operating parameters of the oil-immersed transformer, multiple fire control schemes are set;

[0013] Obtain environmental parameters around oil-immersed transformers during fire tests;

[0014] According to the environmental parameters, the fire state parameters are calculated using the preset formula;

[0015] The numerical values ​​corresponding to the fire state parameters are divided into a plurality of preset intervals using a plurality of preset thresholds; wherein the plurality of fire control schemes correspond one to one with the plurality of preset intervals;

[0016] A fire control scheme database is constructed according to operating condition parameters, multiple fire control schemes, and corresponding relationships between the multiple fire control schemes and multiple preset intervals.

[0017] In an embodiment of the present application, the method further includes:

[0018] Set the priority order for using multiple fire control solutions.

[0019] In the embodiment of the present application, the priority order of use of multiple fire control schemes is set, including:

[0020] The priority order of use of multiple fire control schemes is set according to their cooling performance, fire extinguishing performance and economic performance.

[0021] In the embodiment of the present application, multiple preset thresholds are used to divide the values ​​corresponding to the fire state parameters into multiple preset intervals, including:

[0022] According to the values ​​corresponding to the fire state parameters, a plurality of preset thresholds are determined using a nine-level scaling method;

[0023] The numerical values ​​corresponding to the fire state parameters are divided into a plurality of preset intervals using a plurality of preset thresholds.

[0024] In the embodiment of the present application, according to the real-time fire state parameters, a fire control scheme corresponding to the fire state parameters is matched from a fire control scheme database, including:

[0025] Extract parameter values ​​corresponding to real-time fire status parameters;

[0026] According to the parameter value, a preset interval corresponding to the parameter value is obtained by matching from multiple preset intervals;

[0027] According to the correspondence between the plurality of fire control schemes and the plurality of preset intervals, the fire control scheme corresponding to the real-time fire status parameters is determined.

[0028] In an embodiment of the present application, the real-time environmental parameters include temperature, temperature change rate, gas content and gas release rate.

[0029] In the embodiment of the present application, the expression of the preset formula is specifically:

[0030]

[0031] Where state represents the real-time fire state parameter, represents temperature, represents the rate of temperature change, CON i (x) represents the content of gas x at the i-th moment, ξ x represents the hazard factor of gas x, and ∑ξ x =1,γ i (x) represents the release rate of gas x at the i-th moment, ω 1 ,ω 2 ,ω 3 ,ω 4 They represent the weights of temperature, temperature change rate, gas content and gas release rate respectively.

[0032] A second aspect of the present application provides a processor configured to execute the above-mentioned fire control method for an oil-immersed transformer.

[0033] A third aspect of the present application provides a machine-readable storage medium having instructions stored thereon, which, when executed by a processor, configures the processor to execute the above-mentioned fire control method for an oil-immersed transformer.

[0034] Through the above technical solution, when a fire occurs, by calling the fire control solution database and obtaining the real-time environmental parameters around the oil-immersed transformer, the real-time fire state parameters are calculated using a preset formula, and then the fire control solution corresponding to the fire state parameters is matched from the fire control solution database, and the oil-immersed transformer is controlled according to the fire control solution. In this way, since the size of the fire can be quantitatively calculated and a matching fire control solution can be selected, damage to the oil-immersed transformer caused by blindly using the fire control solution is avoided, while the success rate of fire prevention and control is guaranteed.

[0035] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the following specific implementations, they are used to explain the embodiments of the present application, but do not constitute a limitation on the embodiments of the present application. In the accompanying drawings:

[0037] Figure 1 It is a flow chart of a fire control method for an oil-immersed transformer provided in an embodiment of the present application;

[0038] Figure 2 It is another flow chart of the fire control method for an oil-immersed transformer provided in an embodiment of the present application;

[0039] Figure 3It is a flow chart of step S104 in the fire control method for an oil-immersed transformer provided in an embodiment of the present application;

[0040] Figure 4 It is a flow chart of step S14 in the fire control method for an oil-immersed transformer provided in an embodiment of the present application;

[0041] Figure 5 It is an internal structure diagram of the computer device provided in the embodiment of the present application. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme 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. It should be understood that the specific implementation methods described herein are only used to illustrate and explain the embodiments of the present application, and are not used to limit the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0043] Figure 1 FIG. 1 is a flow chart of a fire control method for an oil-immersed transformer provided in an embodiment of the present application. Figure 1 As shown, in one embodiment of the present application, a fire control method for an oil-immersed transformer is provided, comprising the following steps:

[0044] Step S11: calling the fire control scheme database;

[0045] Step S12: Acquire real-time environmental parameters around the oil-immersed transformer when the fire occurs;

[0046] Step S13: Calculate the real-time fire status parameters using a preset formula according to the real-time environmental parameters;

[0047] Step S14: According to the real-time fire state parameters, a fire control plan corresponding to the fire state parameters is matched from a fire control plan database;

[0048] Step S15: Control the fire of the oil-immersed transformer according to the fire control plan.

[0049] Specifically, in step S11, the fire control scheme database stores available fire control schemes, including nitrogen injection cooling system (non-oil drainage), water spray fire extinguishing system, fine water mist fire extinguishing system, foam fire extinguishing system, fixed fire cannon fire extinguishing system, compressed air foam system, mobile water bubble car, mobile lifting fire truck, etc. In step S12, when a fire occurs, after obtaining the real-time environmental parameters around the oil-immersed transformer, enter step S13. In step S13, according to the real-time environmental parameters, the real-time fire state parameters are calculated using a preset formula, wherein the real-time fire state parameters are used to quantify the size of the fire, accurately reflect the fire situation, and facilitate standardized disposal. In step S14, according to the real-time fire state parameters, the fire control scheme corresponding to the fire state parameters is matched from the fire control scheme database, and then step S15 is entered. In step S15, the oil-immersed transformer is controlled according to the matched fire control scheme. Through the above method, since the size of the fire can be quantified and the matching fire control plan can be selected, the damage to the oil-immersed transformer caused by blindly using the fire control plan can be avoided, and the success rate of fire prevention and control can be guaranteed.

[0050] In one embodiment, the real-time environmental parameters include temperature, temperature change rate, gas content and gas release rate. In specific implementation, a suitable number of temperature sensors are arranged around the oil-immersed transformer to collect temperature signals around the oil-immersed transformer, and then the average temperature and temperature change rate around the oil-immersed transformer are obtained according to the temperature signals; at the same time, a suitable number of gas detection sensors are arranged around the oil-immersed transformer to collect the gas content of CO2, CO, NOx, SO2 and the like around the oil-immersed transformer, and then the gas release rate of CO2, CO, NOx, SO2 and the like around the oil-immersed transformer is obtained.

[0051] Furthermore, in one embodiment, the expression of the preset formula is specifically:

[0052]

[0053] Where state represents the real-time fire state parameter, represents temperature, represents the rate of temperature change, CON i (x) represents the content of gas x at the i-th moment, ξ x represents the hazard factor of gas x, and ∑ξ x =1,γ i (x) represents the release rate of gas x at the i-th moment, ω 1 ,ω 2 ,ω 3 ,ω 4 They represent the weights of temperature, temperature change rate, gas content and gas release rate respectively.

[0054] Specifically, the temperature T is calculated by the following formula:

[0055]

[0056] Where, T N Represents the measured temperature of the Nth temperature sensor, where N represents the number of temperature sensors.

[0057] The temperature change rate is calculated by the following formula

[0058]

[0059] In the formula, and Represent the temperature at the i-th moment and the i-1-th moment respectively, and t represents the sampling time interval.

[0060] The gas release rate γ is calculated by the following formula i (x):

[0061]

[0062] In the formula, CON i (x) and CON i-1 (x) represents the content of gas x at the i-th moment and the i-1-th moment respectively, and t represents the sampling time interval.

[0063] See also Figure 2 , Figure 2 1 is another flow chart of a fire control method for an oil-immersed transformer provided in an embodiment of the present invention. The method further includes:

[0064] Step S101: setting multiple fire control schemes according to the operating parameters of the oil-immersed transformer;

[0065] Step S102: Acquire environmental parameters around the oil-immersed transformer during the fire test;

[0066] Step S103: Calculate fire state parameters using a preset formula according to environmental parameters;

[0067] Step S104: using a plurality of preset thresholds to divide the values ​​corresponding to the fire state parameters into a plurality of preset intervals; wherein the plurality of fire control schemes correspond one to one to the plurality of preset intervals;

[0068] Step S105: constructing a fire control scheme database according to the operating condition parameters, the plurality of fire control schemes, and the correspondence between the plurality of fire control schemes and the plurality of preset intervals.

[0069] Specifically, in step S101, a plurality of optional fire control schemes are pre-set according to the operating parameters of the oil-immersed transformer, such as the voltage level, capacity, size, and economy. In step S102, when conducting a fire test, after obtaining the environmental parameters around the oil-immersed transformer, step S103 is entered. In step S103, the fire state parameters are calculated according to the environmental parameters using a preset formula, wherein the fire size is constantly changing as the fire spreads. In this process, the fire state parameter used to quantify the fire size is a constantly changing value. In step S104, the values ​​corresponding to the fire state parameters are divided into a plurality of preset intervals using a plurality of preset thresholds, wherein a plurality of fire control schemes correspond one-to-one to a plurality of preset intervals, and then step S105 is entered. In step S105, a fire control scheme database is constructed according to the operating parameters, a plurality of fire control schemes, and the corresponding relationship between a plurality of fire control schemes and a plurality of preset intervals. Through the above method, multiple fire control schemes are pre-set according to the operating parameters of the oil-immersed transformer, and a correspondence between multiple fire control schemes and multiple preset intervals divided by numerical values ​​corresponding to the fire state parameters is established. When a fire occurs, a fire control scheme that matches the calculated real-time fire state parameters can be selected, thereby improving the fire control efficiency and ensuring the safety of the oil-immersed transformer.

[0070] In one embodiment, the method further includes: setting a priority order for the use of multiple fire control schemes. Specifically, the multiple fire control schemes are sorted from high to low according to the use priority, with the first one being the easiest to use and the last one being the least easy to use. It can be understood that the preset interval with a smaller value corresponding to the fire state parameter corresponds to the fire control scheme with a higher ranking, and the preset interval with a larger value corresponding to the fire state parameter corresponds to the fire control scheme with a lower ranking, that is, when the fire is small, the fire control scheme that is easiest to use is selected first, thereby reducing the operation and maintenance costs of the fire extinguishing method.

[0071] Furthermore, in one embodiment, setting a priority order for use of multiple fire control schemes includes: setting a priority order for use of multiple fire control schemes according to their cooling performance, fire extinguishing performance, and economic performance.

[0072] See also Figure 3 , Figure 3 The flowchart of step S104 in the fire control method for oil-immersed transformers provided in an embodiment of the present invention is shown in FIG. In step S104, the numerical values ​​corresponding to the fire state parameters are divided into multiple preset intervals using multiple preset thresholds, which may include the following steps:

[0073] Step S1041: Determine multiple preset thresholds using a nine-level scaling method according to the values ​​corresponding to the fire state parameters;

[0074] Step S1042: using a plurality of preset thresholds to divide the numerical values ​​corresponding to the fire status parameters into a plurality of preset intervals.

[0075] Specifically, in step S1041, the experts determine multiple preset thresholds using a nine-level scaling method in combination with the values ​​corresponding to the fire state parameters obtained during the fire test, wherein the number of preset thresholds is the same as the number of available fire control schemes. For example, if the number of available fire control schemes is 5, then 5 preset thresholds need to be determined. The values ​​corresponding to the fire state parameters can then be divided into 5 preset intervals using the 5 preset thresholds, and each preset interval corresponds to a fire control scheme.

[0076] See also Figure 4 , Figure 4 The flowchart of step S14 in the fire control method for oil-immersed transformers provided in an embodiment of the present invention is shown in FIG. In step S14, according to the real-time fire state parameters, a fire control scheme corresponding to the fire state parameters is matched from a fire control scheme database, which may include the following steps:

[0077] Step S141: extracting parameter values ​​corresponding to real-time fire status parameters;

[0078] Step S142: According to the parameter value, a preset interval corresponding to the parameter value is obtained by matching from a plurality of preset intervals;

[0079] Step S143: Determine the fire control scheme corresponding to the real-time fire status parameter according to the correspondence between the multiple fire control schemes and the multiple preset intervals.

[0080] It can be understood that in step S141, the parameter value corresponding to the real-time fire state parameter is first extracted, such as 58.6080679. Then in step S142, it can be determined which preset interval the parameter value is in, such as the preset interval of [50-70]. Further in step S143, the fire control scheme corresponding to the parameter value is determined according to the correspondence between the multiple fire control schemes and the multiple preset intervals.

[0081] In a specific embodiment, a 220kV outdoor oil-immersed transformer is taken as an example. The capacity of the oil-immersed transformer is 240MVA, and the size of the transformer body (excluding the bushing) is length*width*height=12*4.5*5.6 meters. According to the actual situation of the oil-immersed transformer and the substation, 5 suitable fire control schemes are selected, namely: nitrogen injection cooling system (non-oil drainage), water spray fire extinguishing system, foam fire extinguishing system, fixed fire cannon fire extinguishing system and mobile lifting fire truck.

[0082] According to the cooling performance, fire extinguishing performance, economic performance and other factors of each fire control scheme, the priority of use is ranked from high to low as follows: nitrogen injection cooling system (non-oil drainage) (Y1), water spray fire extinguishing system (Y2), foam fire extinguishing system (Y3), fixed fire cannon fire extinguishing system (Y4), mobile high-rise fire extinguishing vehicle (Y5).

[0083] 16 temperature sensors with a temperature measuring range of 1600°C are arranged around the oil-immersed transformer to collect the temperature around the oil-immersed transformer. At the same time, appropriate gas detection sensors are arranged to collect the gas content of CO2, CO, NOx, and SO2 around the oil-immersed transformer to characterize the fire status.

[0084] In a fire test, the temperature and gas content data around the oil-immersed transformer were collected by temperature sensors and gas detection sensors. The sampling time interval was 10s, and the sampling data were shown in Table 1.

[0085] Table 1

[0086]

[0087] The temperature change rate is calculated by the following formula

[0088]

[0089] The gas release rate γ is calculated by the following formula i (x):

[0090]

[0091] The hazard coefficients ξ of the four gases CO2, CO, NOx, and SO2 are 0.04, 0.45, 0.1, and 0.41, respectively, and the weights ω of the four environmental parameters temperature, temperature change rate, gas content, and gas release rate are 1 ,ω 2 ,ω 3 ,ω 4 Take 0.22, 0.31, 0.21, and 0.26 respectively.

[0092] The fire state parameters are calculated by the following formula:

[0093]

[0094] The calculation results are shown in Table 2.

[0095] Table 2

[0096]

[0097] Experts used the nine-level scaling method to determine five preset thresholds based on the values ​​corresponding to the fire state parameters obtained during the fire test, which were 28, 50, 70, 120, and 160. The five preset thresholds were then used to divide the values ​​corresponding to the fire state parameters into five preset intervals, namely [0-28], [50-70], [70-120], and [120-160]. These five preset intervals correspond to the nitrogen injection cooling system (non-oil drainage) (Y1), water spray fire extinguishing system (Y2), foam fire extinguishing system (Y3), fixed fire cannon fire extinguishing system (Y4), and mobile high-rise fire extinguishing vehicle (Y5), respectively.

[0098] When a fire occurs, the real-time environmental parameters around the oil-immersed transformer are obtained, and the real-time fire state parameter state is calculated, and then the matching fire control scheme is selected according to the value corresponding to the real-time fire state parameter state, as shown in Table 3.

[0099] Table 3

[0100]

[0101] Among them, a single fire control method is selected by default, and a combined fire control method can be selected according to actual needs.

[0102] Through the above technical solution, when a fire occurs, by calling the fire control solution database and obtaining the real-time environmental parameters around the oil-immersed transformer, the real-time fire state parameters are calculated using a preset formula, and then the fire control solution corresponding to the fire state parameters is matched from the fire control solution database, and the oil-immersed transformer is controlled according to the fire control solution. In this way, since the size of the fire can be quantitatively calculated and a matching fire control solution can be selected, damage to the oil-immersed transformer caused by blindly using the fire control solution is avoided, while the success rate of fire prevention and control is guaranteed.

[0103] An embodiment of the present application provides a processor, which is used to run a program, wherein the program executes the above-mentioned fire control method for an oil-immersed transformer when it is run.

[0104] The processor includes a kernel, and the kernel calls the corresponding program unit from the memory. One or more kernels can be set, and the fire control method for the oil-immersed transformer is implemented by adjusting the kernel parameters.

[0105] 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.

[0106] An embodiment of the present application provides a machine-readable storage medium on which a program is stored. When the program is executed by a processor, the above-mentioned fire control method for an oil-immersed transformer is implemented.

[0107] In one embodiment, a computer device is provided. The computer device may be a server, and its internal structure diagram may be as follows: Figure 5 As shown. The computer device includes a processor A01, a network interface A02, a memory (not shown in the figure) and a database (not shown in the figure) connected through a system bus. Among them, the processor A01 of the computer device is used to provide computing and control capabilities. The memory of the computer device includes an internal memory A03 and a non-volatile storage medium A04. The non-volatile storage medium A04 stores an operating system B01, a computer program B02 and a database (not shown in the figure). The internal memory A03 provides an environment for the operation of the operating system B01 and the computer program B02 in the non-volatile storage medium A04. The database of the computer device is used to store data. The network interface A02 of the computer device is used to communicate with an external terminal through a network connection. When the computer program B02 is executed by the processor A01, a fire control method for an oil-immersed transformer is implemented.

[0108] Those skilled in the art will understand that Figure 5 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0109] An embodiment of the present application provides a device, which includes a processor, a memory, and a program stored in the memory and executable on the processor. When the processor executes the program, the following steps are implemented: calling a fire control solution database; obtaining real-time environmental parameters around an oil-immersed transformer when a fire occurs; calculating real-time fire status parameters using a preset formula based on the real-time environmental parameters; matching a fire control solution corresponding to the fire status parameters from a fire control solution database based on the real-time fire status parameters; and controlling the fire of the oil-immersed transformer according to the fire control solution.

[0110] In an embodiment of the present application, the following steps are also included: setting multiple fire control schemes according to the operating parameters of the oil-immersed transformer; obtaining environmental parameters around the oil-immersed transformer during a fire test; calculating fire state parameters according to the environmental parameters using a preset formula; dividing the numerical values ​​corresponding to the fire state parameters into multiple preset intervals using multiple preset thresholds; wherein multiple fire control schemes correspond one-to-one to multiple preset intervals; and constructing a fire control scheme database according to the operating parameters, multiple fire control schemes, and the correspondence between multiple fire control schemes and multiple preset intervals.

[0111] In the embodiment of the present application, the following steps are also included: setting the priority order of use of multiple fire control schemes.

[0112] In an embodiment of the present application, a priority order of use of multiple fire control schemes is set, including: setting a priority order of use of multiple fire control schemes according to the cooling performance, fire extinguishing performance and economic performance of the multiple fire control schemes.

[0113] In an embodiment of the present application, multiple preset thresholds are used to divide the numerical values ​​corresponding to the fire status parameters into multiple preset intervals, including: determining multiple preset thresholds according to the numerical values ​​corresponding to the fire status parameters using a nine-level scaling method; and dividing the numerical values ​​corresponding to the fire status parameters into multiple preset intervals using multiple preset thresholds.

[0114] In an embodiment of the present application, according to the real-time fire status parameters, a fire control plan corresponding to the fire status parameters is matched from a fire control plan database, including: extracting parameter values ​​corresponding to the real-time fire status parameters; according to the parameter values, matching preset intervals corresponding to the parameter values ​​from multiple preset intervals; and determining the fire control plan corresponding to the real-time fire status parameters according to the correspondence between multiple fire control plans and multiple preset intervals.

[0115] In an embodiment of the present application, the real-time environmental parameters include temperature, temperature change rate, gas content and gas release rate.

[0116] In the embodiment of the present application, the expression of the preset formula is specifically:

[0117]

[0118] Where state represents the real-time fire state parameter, represents temperature, represents the rate of temperature change, CON i (x) represents the content of gas x at the i-th moment, ξ x represents the hazard factor of gas x, and ∑ξ x =1,γ i (x) represents the release rate of gas x at the i-th moment, ω 1 ,ω 2 ,ω 3 ,ω 4 They represent the weights of temperature, temperature change rate, gas content and gas release rate respectively.

[0119] The present application also provides a computer program product, which, when executed on a data processing device, is suitable for executing a program that initializes the following method steps: calling a fire control plan database; obtaining real-time environmental parameters around the oil-immersed transformer when a fire occurs; calculating real-time fire status parameters using a preset formula based on the real-time environmental parameters; matching a fire control plan corresponding to the fire status parameters from a fire control plan database based on the real-time fire status parameters; and controlling the fire of the oil-immersed transformer according to the fire control plan.

[0120] In an embodiment of the present application, the following steps are also included: setting multiple fire control schemes according to the operating parameters of the oil-immersed transformer; obtaining environmental parameters around the oil-immersed transformer during a fire test; calculating fire state parameters according to the environmental parameters using a preset formula; dividing the numerical values ​​corresponding to the fire state parameters into multiple preset intervals using multiple preset thresholds; wherein multiple fire control schemes correspond one-to-one to multiple preset intervals; and constructing a fire control scheme database according to the operating parameters, multiple fire control schemes, and the correspondence between multiple fire control schemes and multiple preset intervals.

[0121] In the embodiment of the present application, the following steps are also included: setting the priority order of use of multiple fire control schemes.

[0122] In an embodiment of the present application, a priority order of use of multiple fire control schemes is set, including: setting a priority order of use of multiple fire control schemes according to the cooling performance, fire extinguishing performance and economic performance of the multiple fire control schemes.

[0123] In an embodiment of the present application, multiple preset thresholds are used to divide the numerical values ​​corresponding to the fire status parameters into multiple preset intervals, including: determining multiple preset thresholds according to the numerical values ​​corresponding to the fire status parameters using a nine-level scaling method; and dividing the numerical values ​​corresponding to the fire status parameters into multiple preset intervals using multiple preset thresholds.

[0124] In an embodiment of the present application, according to the real-time fire status parameters, a fire control plan corresponding to the fire status parameters is matched from a fire control plan database, including: extracting parameter values ​​corresponding to the real-time fire status parameters; according to the parameter values, matching preset intervals corresponding to the parameter values ​​from multiple preset intervals; and determining the fire control plan corresponding to the real-time fire status parameters according to the correspondence between multiple fire control plans and multiple preset intervals.

[0125] In an embodiment of the present application, the real-time environmental parameters include temperature, temperature change rate, gas content and gas release rate.

[0126] In the embodiment of the present application, the expression of the preset formula is specifically:

[0127]

[0128] Where state represents the real-time fire state parameter, represents temperature, represents the rate of temperature change, CON i (x) represents the content of gas x at the i-th moment, ξ x represents the hazard factor of gas x, and ∑ξ x =1,γ i (x) represents the release rate of gas x at the i-th moment, ω 1 ,ω 2 ,ω 3 ,ω 4 They represent the weights of temperature, temperature change rate, gas content and gas release rate respectively.

[0129] 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.

[0130] 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.

[0131] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0132] 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. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0133] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0134] 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.

[0135] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0136] 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.

[0137] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.

Claims

1. A fire control method for an oil-immersed transformer, characterized in that: include: According to the operating parameters of the oil-immersed transformer, multiple fire control schemes are set; Setting the priority order of use of the multiple fire control schemes; Acquiring environmental parameters around the oil-immersed transformer during a fire test; According to the environmental parameters, fire state parameters are calculated using a preset formula; The numerical values ​​corresponding to the fire state parameters are divided into a plurality of preset intervals using a plurality of preset thresholds; wherein the plurality of fire control schemes correspond one to one to the plurality of preset intervals; Building a fire control scheme database according to the operating condition parameters, the multiple fire control schemes, and the corresponding relationship between the multiple fire control schemes and the multiple preset intervals; Calling the fire control scheme database; Acquiring real-time environmental parameters around the oil-immersed transformer when a fire occurs; According to the real-time environmental parameters, the real-time fire status parameters are calculated using the preset formula; According to the real-time fire state parameters, a fire control plan corresponding to the fire state parameters is matched from the fire control plan database; Controlling the fire of the oil-immersed transformer according to the fire control scheme; The step of setting the priority order of the plurality of fire control schemes includes: The use priority order of the multiple fire control schemes is set according to the cooling performance, fire extinguishing performance and economic performance of the multiple fire control schemes.

2. The fire control method according to claim 1, characterized in that: The method of dividing the values ​​corresponding to the fire state parameters into a plurality of preset intervals by using a plurality of preset thresholds includes: Determining a plurality of preset thresholds using a nine-level scaling method according to the values ​​corresponding to the fire state parameters; The multiple preset thresholds are used to divide the numerical values ​​corresponding to the fire state parameters into multiple preset intervals.

3. The fire control method according to claim 1, characterized in that: The step of matching and obtaining a fire control scheme corresponding to the fire state parameter from the fire control scheme database according to the real-time fire state parameter comprises: Extracting parameter values ​​corresponding to the real-time fire status parameters; According to the parameter value, matching the preset interval corresponding to the parameter value from the multiple preset intervals; According to the correspondence between the multiple fire control schemes and the multiple preset intervals, the fire control scheme corresponding to the real-time fire status parameter is determined.

4. The fire control method according to any one of claims 1 to 3, characterized in that: The real-time environmental parameters include temperature, temperature change rate, gas content and gas release rate.

5. The fire control method according to claim 4, characterized in that: The expression of the preset formula is specifically: Where state represents the real-time fire state parameter, represents temperature, represents the rate of temperature change, CON i (x) represents the content of gas x at the i-th moment, ξ x represents the hazard factor of gas x, and ξ x =1,γ i (x) represents the release rate of gas x at the i-th moment, ω1, ω2, ω3, and ω4 represent the weights of temperature, temperature change rate, gas content, and gas release rate, respectively.

6. A processor, characterized in that: The method is configured to execute the fire control method for an oil-immersed transformer according to any one of claims 1 to 5.

7. A machine-readable storage medium having instructions stored thereon, characterized in that: When the instruction is executed by a processor, the processor is configured to execute the fire control method for an oil-immersed transformer according to any one of claims 1 to 5.

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