Flame plasma potential distribution measuring system under simulated forest fire condition

Abstract

The invention discloses a flame plasma potential distribution measurement system under a simulated mountain fire condition. The system comprises a pre-experiment device, a flame plasma potential distribution measurement device and a flame plasma potential distribution measurement device, wherein the pre-experiment device comprises a scale, a combustion platform, a test power supply and a simulated wire; the potential measuring device comprises a plurality of potential measuring units; the pre-experiment device is used for igniting combustible materials on a combustion platform, and when the combustible materials on the combustion platform generate stable flames, the height of a flame continuous area, the height of a flame discontinuous area and the height of a smoke area are obtained through a ruler; the test power supply is used for increasing the voltage until the simulation wire is punctured and reading the breakdown voltage when the simulation wire is punctured; and the potential measuring device is used for respectively placing a plurality of potential measuring units at the flame continuous area height, the flame discontinuous area height and the smoke area height after the flames generated by the combustibles on the combustion platform are extinguished, and respectively measuring the average potential gradient of each area according to the plurality of potential measuring units. By implementing the method, the operation safety of the power transmission line under the mountain fire condition can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of electrical engineering, and in particular to a flame plasma potential distribution measurement system under simulated mountain fire conditions. Background Art

[0002] The imbalanced distribution of power generation energy and load centers requires the long-distance transmission of large-capacity electric energy during the power transmission process. This power transmission method requires the use of overhead transmission lines, which inevitably pass through areas prone to forest fires with dense vegetation. When a wildfire occurs, the high temperature, high conductivity, and high ash characteristics of the flame will significantly reduce the insulation strength of the transmission line gap, which may cause the line to trip and the reclosing success rate to be low, leading to line shutdown accidents, seriously threatening the safe and stable operation of the transmission line. Therefore, it is an urgent problem to study the mechanism of the decrease in the insulation strength of the transmission line gap caused by wildfires and the impact of the gap breakdown characteristics on the operation of the transmission line in order to improve the safe and stable operation of the transmission line.

[0003] Existing research mainly obtains the discharge voltage under AC and DC voltage conditions through simulation experiments, and then obtains the average breakdown potential gradient of the gap. However, this average breakdown potential gradient of the gap obtained through voltage tests does not take into account the influence of flame characteristics. When flames exist, the discharge process in the gap will change. The charged particles in the flame provide an additional source of charge for the discharge channel, making it easier for the discharge channel to form and develop. Therefore, it is urgent to consider the influence of flame characteristics when obtaining the average breakdown potential gradient of the gap simulation experiment to improve the operation safety of the transmission line. Summary of the invention

[0004] The embodiment of the present invention provides a flame plasma potential distribution measurement system under simulated wildfire conditions, which can make up for the gap in the prior art that the influence of flame characteristics on the voltage gradient of the transmission line under simulated wildfire conditions is not considered, thereby improving the operation safety of the transmission line.

[0005] An embodiment of the present invention provides a flame plasma potential distribution measurement system under simulated wildfire conditions, comprising: a pre-experimental device and a potential measurement device;

[0006] The pre-experimental device comprises: a ruler, a combustion platform, a test power supply and a simulation wire; the potential measuring device comprises a plurality of potential measuring units; the test power supply is connected to the simulation wire; the simulation wire is located above the combustion platform;

[0007] The pre-experimental device is used to ignite the combustibles on the combustion platform, and when the combustibles on the combustion platform generate a stable flame, obtain the height of the flame continuous area, the height of the flame discontinuous area and the height of the smoke area through a ruler;

[0008] The test power supply is used to increase the voltage until the simulated wire is broken down after the scale obtains the height of the flame continuous area, the height of the flame discontinuous area and the height of the smoke area, and read the breakdown voltage when the simulated wire is broken down;

[0009] The potential measuring device is used to place a plurality of potential measuring units at the height of the flame continuous area, the height of the flame discontinuous area and the height of the smoke area after the flame generated by the combustible material on the combustion platform is extinguished, and obtain the average potential gradient of the flame continuous area, the average potential gradient of the flame discontinuous area and the average potential gradient of the smoke area according to the plurality of potential measuring units.

[0010] Furthermore, the pre-experimental device further comprises: an insulator;

[0011] The simulated wire is suspended above the combustion platform through insulators.

[0012] Furthermore, the combustion platform includes: a refractory bottom plate and a metal plate; the metal plate is arranged on the refractory bottom plate, and the metal plate is grounded.

[0013] Furthermore, the number of potential measuring units in the potential measuring device is not less than three.

[0014] Furthermore, the potential measuring device further comprises: a bracket and a plurality of first metal buckles;

[0015] Each potential measuring unit is connected to the bracket through each first metal buckle.

[0016] Further, the potential measurement unit comprises: a plurality of potential measurement subunits, a first metal buckle, a plurality of second metal buckles and an epoxy rod; the potential measurement subunit comprises an iron rod and a copper mesh;

[0017] One end of the epoxy rod is connected to the first metal buckle, and the other end of the epoxy rod is connected to each second metal buckle;

[0018] One end of the iron rod is connected to the second metal buckle, and the other end of the iron rod is connected to the copper mesh.

[0019] Furthermore, the first metal buckle and the second metal buckle are movable metal buckles.

[0020] Furthermore, the diameter of the copper mesh is smaller than a preset diameter of the copper mesh; wherein the preset diameter of the copper mesh is one tenth of the diameter of the flame when the combustible material on the combustion platform produces a stable flame.

[0021] Furthermore, when several potential measuring units are placed at the height of the flame continuous area, the height of the flame discontinuous area and the height of the smoke area respectively, the center line of the copper mesh coincides with the center line of the flame when the combustibles on the combustion platform produce a stable flame.

[0022] Furthermore, the potential measuring device further comprises: a voltage measuring device;

[0023] The first metal buckle is connected to a voltage measuring device.

[0024] The following beneficial effects are achieved by implementing the present invention:

[0025] The invention provides a flame plasma potential distribution measurement system under simulated mountain fire conditions, the system comprising a pre-experimental device and a potential measuring device; the pre-experimental device is used to ignite combustibles on a combustion platform, and when the combustibles on the combustion platform generate a stable flame, obtain the flame continuous area height, the flame discontinuous area height and the smoke area height through a ruler; the test power supply is used to increase the voltage until the simulation wire is broken down after the ruler obtains the flame continuous area height, the flame discontinuous area height and the smoke area height, and read the breakdown voltage when the simulation wire is broken down; the potential measuring device is used to place a plurality of potential measuring units at the flame continuous area height, the flame discontinuous area height and the smoke area height respectively after the flame generated by the combustibles on the combustion platform is extinguished, and obtain the average potential gradient of the flame continuous area, the average potential gradient of the flame discontinuous area and the average potential gradient of the smoke area respectively according to the plurality of potential measuring units. By simulating the flame burning conditions under wildfire conditions through a pre-experimental device, and obtaining the flame continuous area height, flame discontinuous area height and smoke area height when the flame is stable through a ruler, the influence of flame characteristics on the potential gradient can be monitored in different zones; then, by simulating the voltage breakdown through a test power supply to simulate the influence of flame on the transmission line breakdown, and then extinguishing the flame, the flame continuous area height, flame discontinuous area height and smoke area height are measured respectively, and the average potential gradient of the flame continuous area, the average potential gradient of the flame discontinuous area and the average potential gradient of the smoke area are obtained to determine the relationship between the average potential gradient in different areas generated by the breakdown of the transmission line and the flame combustion under wildfire conditions, and then realize the zoned monitoring of the average potential gradient in combination with the flame characteristics, so as to make up for the gap that the existing technology does not consider the influence of flame characteristics on the voltage gradient of the transmission line under simulated wildfire conditions, and improve the operation safety of the transmission line. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a simplified structural schematic diagram of a flame plasma potential distribution measurement system under simulated wildfire conditions provided by one embodiment of the present invention.

[0027] Figure 2 It is a schematic structural diagram of a pre-experimental device provided in one embodiment of the present invention.

[0028] Figure 3It is a schematic structural diagram of a potential measurement unit provided by an embodiment of the present invention.

[0029] Figure 4 It is a schematic structural diagram of a potential measuring device provided by an embodiment of the present invention.

[0030] Figure 5 It is a structural schematic diagram of a flame plasma potential distribution measurement system under simulated wildfire conditions including flame partitions provided by one embodiment of the present invention. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0034] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0035] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0036] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0037] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0038] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0039] like Figure 1 FIG. 1 is a simplified structural schematic diagram of a flame plasma potential distribution measurement system under simulated wildfire conditions provided by an embodiment of the present invention, comprising: a pre-experimental device and a potential measurement device;

[0040] The pre-experimental device comprises: a ruler, a combustion platform, a test power supply and a simulation wire; the potential measuring device comprises a plurality of potential measuring units; the test power supply is connected to the simulation wire; the simulation wire is located above the combustion platform;

[0041] The pre-experimental device is used to ignite the combustibles on the combustion platform, and when the combustibles on the combustion platform generate a stable flame, obtain the height of the flame continuous area, the height of the flame discontinuous area and the height of the smoke area through a ruler;

[0042] The test power supply is used to increase the voltage until the simulated wire is broken down after the scale obtains the height of the flame continuous area, the height of the flame discontinuous area and the height of the smoke area, and read the breakdown voltage when the simulated wire is broken down;

[0043] The potential measuring device is used to place a plurality of potential measuring units at the height of the flame continuous area, the height of the flame discontinuous area and the height of the smoke area after the flame generated by the combustible material on the combustion platform is extinguished, and obtain the average potential gradient of the flame continuous area, the average potential gradient of the flame discontinuous area and the average potential gradient of the smoke area according to the plurality of potential measuring units.

[0044] Specifically, Figure 2 The figure is a schematic diagram of the structure of a pre-experimental device provided by the present invention, wherein the pre-experimental device comprises: a scale, a combustion platform, a test power supply and a simulation wire; the test power supply is connected to the simulation wire.

[0045] In a preferred embodiment, the pre-experimental device further comprises: an insulator; the simulated wire is suspended above the combustion platform through the insulator.

[0046] Specifically, in the pre-experimental device, the role of the ruler is to measure the height of the flame continuous area, flame discontinuity area and smoke area. The combustion platform is used to place combustibles during the pre-experiment to observe the height of each partition in the flame generated by the combustibles.

[0047] In a preferred embodiment, the combustion platform comprises: a refractory bottom plate and a metal plate; the metal plate is arranged on the refractory bottom plate, and the metal plate is grounded.

[0048] Specifically, a refractory base plate made of refractory material is used as a support of the combustion platform below the combustion platform, and a metal plate is placed on the refractory base plate, and the metal plate is grounded as a ground level. The center of the metal plate is used to place combustibles. The bottom end of the ruler is flush with the metal plate.

[0049] In the pre-experimental device, a simulated wire is set directly above the metal plate, and the simulated wire is suspended directly above the metal plate through an insulator. The simulated wire is connected to the test power supply as an electrode.

[0050] like Figure 3 FIG. 1 is a schematic diagram of a potential measurement unit provided by the present invention. Figure 4 The figure is a schematic diagram of the structure of a potential measuring device provided by the present invention, the potential measuring device includes several Figure 3 The potential measuring unit is shown.

[0051] In a preferred embodiment, the potential measuring device further comprises: a bracket and a plurality of first metal buckles; each potential measuring unit is connected to the bracket via each first metal buckle.

[0052] Specifically, the potential measuring device mainly includes several Figure 3The potential measuring units shown are each connected to the bracket via a first metal buckle. Preferably, to facilitate the movement of the bracket, the bracket is mounted on a fixable roller.

[0053] In a preferred embodiment, the potential measuring unit comprises: a plurality of potential measuring sub-units, a first metal buckle, a plurality of second metal buckles and an epoxy rod; the potential measuring sub-unit comprises an iron rod and a copper mesh; one end of the epoxy rod is connected to the first metal buckle, and the other end of the epoxy rod is connected to each second metal buckle; one end of the iron rod is connected to the second metal buckle, and the other end of the iron rod is connected to the copper mesh.

[0054] In a preferred embodiment, the first metal buckle and the second metal buckle are movable metal buckles.

[0055] In a preferred embodiment, the potential measuring device further includes: a voltage measuring device; and the first metal buckle is connected to the voltage measuring device.

[0056] Specifically, Figure 3 As shown, each potential measurement unit includes a plurality of potential measurement subunits composed of an iron rod and a copper mesh. In each potential measurement subunit composed of an iron rod and a copper mesh, the copper mesh is welded to one end of the iron rod, and the other end of the iron rod is connected to a second metal buckle. The second metal buckle is fixed to a "T"-shaped epoxy rod, and the other end of the "T"-shaped epoxy rod is fixed to a bracket through a movable first metal buckle. In addition, in order to facilitate the measurement of the voltage at the position of each iron rod, the end of each iron rod is connected to a wire at the second metal buckle, and the other end of the wire is connected to a voltage measuring device, such as a voltmeter.

[0057] In a preferred embodiment, the diameter of the copper mesh is smaller than a preset diameter of the copper mesh; wherein the preset diameter of the copper mesh is one tenth of the diameter of the flame when the combustible material on the combustion platform produces a stable flame.

[0058] Specifically, the area of ​​each copper mesh should be appropriately selected according to the size of the flame when the combustible produces a stable flame, so as not to seriously change the potential distribution of the flame plasma. In the present invention, the diameter of the copper mesh needs to be less than one tenth of the diameter of the flame when the combustible produces a stable flame on the combustion platform, so as not to hinder the flow of the flame.

[0059] It should be noted that the copper mesh of the present invention is a small circular mesh. By using such a small circular mesh electrode to measure the potential, on the one hand, the distortion effect on the potential distribution inside the flame plasma is small, and on the other hand, the influence of the uncertainty of flame combustion on the potential measurement can be reduced. At the same time, the mesh structure does not hinder the flow of the flame.

[0060] When testing the flame plasma potential distribution measurement system under the above-mentioned simulated wildfire conditions, first conduct a preliminary experiment through the pre-experimental device, without using the potential measurement device, ignite the combustibles on the metal plate of the combustion platform, and after the flame generated by the combustibles stabilizes, read the height of the flame continuous area, the height of the flame discontinuous area, and the height of the smoke area through the ruler. Slowly increase the voltage of the simulated wire through the test power supply until the simulated wire is broken down, and read the breakdown voltage when the simulated wire is broken down through the test power supply. Among them, the test power supply is generally composed of a power supply, a voltage regulator, and a transformer. The voltage regulator is used to adjust the output voltage of the test power supply. When a breakdown occurs, the breakdown voltage can be obtained by reading the voltage corresponding to the voltage regulator.

[0061] It should be noted that if Figure 5 In the flame combustion process partition shown in the figure, the flame is divided into flame continuous areas according to the flame brightness and color ( Figure 5 Medium bright yellow flame area) and flame discontinuity area ( Figure 5 The flame is considered to be in the orange-yellow flame area. If the flame does not bridge the simulated wire, the area between the highest point of the flame and the simulated wire is called the smoke area. If the distance between the highest point of the flame and the simulated wire is greater than 20 cm after the flame is stable, it is considered that the flame does not bridge the simulated wire. If the distance between the highest point of the flame and the simulated wire is no more than 20 cm after the flame is stable, it is considered that the flame bridges the simulated wire. The smoke area is not considered when the flame bridges the simulated wire.

[0062] In a preferred embodiment, the number of the potential measuring units in the potential measuring device is not less than three.

[0063] Specifically, the number of potential measuring units included in the potential measuring device is not less than three, in order to ensure that at least one potential measuring unit can be arranged in the flame continuous area, the flame discontinuous area and the smoke area. Preferably, when the smoke area is not considered, the number of potential measuring units can be at least two, so that one potential measuring unit is arranged in the flame continuous area and the other potential measuring unit is arranged in the flame discontinuous area.

[0064] Furthermore, after reading the height of the flame continuous area, the flame discontinuous area and the smoke area, extinguish the flame generated by the combustibles on the metal plate of the combustion platform, and clean the metal plate and its surroundings. Put in the potential measuring device. Adjust the position of each potential measuring unit and each potential measuring sub-unit in the potential measuring device so that there is at least one potential measuring sub-unit in each area. Figure 4The potential measuring device shown includes copper meshes 1 to 6 as an example, wherein copper meshes 1 and 2 belong to the first potential measuring unit, copper meshes 3 and 4 belong to the second potential measuring unit, and copper meshes 5 and 6 belong to the third potential measuring unit. By adjusting the first metal buckle of the first potential measuring unit, the first potential measuring unit is located in the smoke area; by adjusting the first metal buckle of the second potential measuring unit, the second potential measuring unit is located in the flame discontinuous area; by adjusting the first metal buckle of the third potential measuring unit, the third potential measuring unit is located in the flame continuous area.

[0065] In a preferred embodiment, when several potential measuring units are placed at the height of the flame continuous area, the height of the flame discontinuous area and the height of the smoke area respectively, the center line of the copper mesh coincides with the center line of the flame when the combustibles on the combustion platform produce a stable flame.

[0066] Specifically, the center line of the copper meshes 1 to 6 is made to coincide with the center line of the flame when the combustibles on the combustion platform generate a stable flame.

[0067] Furthermore, the wiring of the test circuit and the wiring of the measurement circuit are completed. The test circuit, that is, the simulated wire, is slowly boosted by the test power supply until it reaches 80% of the breakdown voltage, and the potential measured by the copper meshes 1 to 6 is recorded by the voltage measuring device. It should be noted that in this step, it is no longer necessary to break down the simulated wire, only to approach the breakdown voltage, so it is sufficient to boost the voltage to 80% of the breakdown voltage. In addition, taking a breakdown voltage of 80% instead of 100% can protect the potential measuring device and prevent excessive voltage from damaging the potential measuring device.

[0068] The average potential gradient of the smoke area can be calculated from the potential of copper mesh 1, the potential of copper mesh 2 and the distance between copper mesh 1 and copper mesh 2, and then the total potential drop of the smoke area can be calculated from the total height of the smoke area. The distance between copper mesh 1 and copper mesh 2 can be obtained by a ruler.

[0069] The average potential gradient in the smoke region is calculated as:

[0070]

[0071] Among them, Esmoke is the average potential gradient in the smoke area; is the potential of copper mesh 1; is the potential of copper mesh 2; l 12 is the distance between copper mesh 1 and copper mesh 2.

[0072] The total potential drop in the smoke area is calculated as:

[0073] U smoke = E smoke × l smoke

[0074] Among them, Usmoke is the total potential drop in the smoke area, that is, the total voltage in the smoke area; Esmoke is the average potential gradient in the smoke area; lsmoke is the total height of the smoke area, that is, the height of the smoke area obtained by the ruler during the pre-experiment.

[0075] Similarly, the average potential gradient of the flame discontinuity region can be calculated from the potential of copper mesh 3, the potential of copper mesh 4 and the distance between copper mesh 3 and copper mesh 4, and then the total potential drop of the flame discontinuity region can be calculated from the total height of the flame discontinuity region. The distance between copper mesh 3 and copper mesh 4 can be obtained by a ruler.

[0076] The average potential gradient in the flame discontinuity region is calculated as:

[0077]

[0078] Where Ediscontinuity is the average potential gradient in the flame discontinuity region; is the potential of copper mesh 3; is the potential of copper mesh 4; l 34 is the distance between copper mesh 3 and copper mesh 4.

[0079] The total potential drop in the flame discontinuity region is calculated as:

[0080] U discontinuity = E discontinuity × l discontinuity

[0081] Among them, Udiscontinuity is the total potential drop in the flame discontinuity area, that is, the total voltage in the flame discontinuity area; Ediscontinuity is the average potential gradient in the flame discontinuity area; ldiscontinuity is the total height of the flame discontinuity area, that is, the height of the flame discontinuity area obtained by the ruler during the pre-experiment.

[0082] The average potential gradient of the flame continuous area can be calculated from the potential of the copper mesh 5, the potential of the copper mesh 6 and the distance between the copper mesh 5 and the copper mesh 6, and then the total potential drop of the flame continuous area can be calculated from the total height of the flame continuous area. The distance between the copper mesh 5 and the copper mesh 6 can be obtained by a ruler.

[0083] The average potential gradient in the flame continuous region is calculated as:

[0084]

[0085] Where Econtinuous is the average potential gradient in the flame continuous region; is the potential of copper mesh 5; is the potential of copper mesh 6; l 56 is the distance between copper mesh 5 and copper mesh 6.

[0086] The total potential drop in the flame continuous area is calculated as:

[0087] U continuous = E continuous × l continuous

[0088] Among them, Ucontinuous is the total potential drop in the flame continuous area, that is, the total voltage in the flame continuous area; Econtinuous is the average potential gradient in the flame continuous area; lcontinuous is the total height of the flame continuous area, that is, the height of the flame continuous area obtained by the ruler during the pre-experiment.

[0089] Furthermore, according to the total potential drop in the flame continuous area, the total potential drop in the flame discontinuous area and the total potential drop in the smoke area, the potential distribution ratio of the three areas during flame burning can be obtained. This result is used in the study of the mechanism of the decrease in insulation strength of transmission line gaps caused by wildfires. It can realize the zoning monitoring of the average potential gradient in combination with the flame characteristics, so as to make up for the gap in the existing technology that does not consider the influence of flame characteristics on the voltage gradient of the transmission line under simulated wildfire conditions, thereby improving the operation safety of the transmission line.

[0090] It should be noted that the device embodiments described above are merely schematic, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. In addition, in the accompanying drawings of the device embodiments provided by the present invention, the connection relationship between the modules indicates that there is a communication connection between them, which may be specifically implemented as one or more communication buses or signal lines. A person of ordinary skill in the art may understand and implement it without paying any creative effort.

[0091] Those skilled in the art can clearly understand that for the sake of convenience and brevity, the specific working process of the device described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0092] The terminal device may be a computing device such as a desktop computer, a notebook, a PDA, a cloud server, etc. The terminal device may include, but is not limited to, a processor and a memory.

[0093] The processor may be a central processing unit (CPU), other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor, etc. The processor is the control center of the terminal device, and uses various interfaces and lines to connect various parts of the entire terminal device.

[0094] The memory can be used to store the computer program, and the processor realizes various functions of the terminal device by running or executing the computer program stored in the memory and calling the data stored in the memory. The memory can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, at least one application required for a function, etc.; the data storage area can store data created according to the use of the mobile phone, etc. In addition, the memory can include a high-speed random access memory, and can also include a non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a smart memory card (Smart Med ia Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0095] The storage medium is a computer-readable storage medium, and the computer program is stored in the computer-readable storage medium. When the computer program is executed by the processor, the steps of each of the above-mentioned method embodiments can be implemented. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electric carrier signal, telecommunication signal and software distribution medium.

[0096] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A flame plasma potential distribution measurement system under simulated wildfire conditions, characterized in that: include: Pre-experimental device and potential measurement device; The pre-experimental device comprises: a ruler, a combustion platform, a test power supply and a simulation wire; the potential measuring device comprises a plurality of potential measuring units; the test power supply is connected to the simulation wire; the simulation wire is located above the combustion platform; The pre-experimental device is used to ignite the combustibles on the combustion platform, and when the combustibles on the combustion platform generate a stable flame, obtain the height of the flame continuous area, the height of the flame discontinuous area and the height of the smoke area through a ruler; The test power supply is used to increase the voltage until the simulated wire is broken down after the scale obtains the height of the flame continuous area, the height of the flame discontinuous area and the height of the smoke area, and read the breakdown voltage when the simulated wire is broken down; The potential measuring device is used to place a plurality of potential measuring units at the height of the flame continuous area, the height of the flame discontinuous area and the height of the smoke area after the flame generated by the combustible material on the combustion platform is extinguished, and obtain the average potential gradient of the flame continuous area, the average potential gradient of the flame discontinuous area and the average potential gradient of the smoke area according to the plurality of potential measuring units.

2. The flame plasma potential distribution measurement system under simulated wildfire conditions according to claim 1, characterized in that: The pre-experimental device also includes: an insulator; The simulated wire is suspended above the combustion platform through insulators.

3. The flame plasma potential distribution measurement system under simulated wildfire conditions as claimed in claim 1, characterized in that: The combustion platform comprises: a fire-resistant bottom plate and a metal plate; the metal plate is arranged on the fire-resistant bottom plate, and the metal plate is grounded.

4. The flame plasma potential distribution measurement system under simulated wildfire conditions according to claim 1, characterized in that: The number of potential measuring units in the potential measuring device is not less than three.

5. The flame plasma potential distribution measurement system under simulated wildfire conditions according to claim 1, characterized in that: The potential measuring device further comprises: a bracket and a plurality of first metal buckles; Each potential measuring unit is connected to the bracket through each first metal buckle.

6. A flame plasma potential distribution measurement system under simulated wildfire conditions as claimed in claim 5, characterized in that: The potential measurement unit comprises: a plurality of potential measurement subunits, a first metal buckle, a plurality of second metal buckles and an epoxy rod; the potential measurement subunit comprises an iron rod and a copper mesh; One end of the epoxy rod is connected to the first metal buckle, and the other end of the epoxy rod is connected to each second metal buckle; One end of the iron rod is connected to the second metal buckle, and the other end of the iron rod is connected to the copper mesh.

7. A flame plasma potential distribution measurement system under simulated wildfire conditions as claimed in claim 6, characterized in that: The first metal buckle and the second metal buckle are movable metal buckles.

8. The flame plasma potential distribution measurement system under simulated wildfire conditions as claimed in claim 7, characterized in that: The diameter of the copper mesh is smaller than the preset diameter of the copper mesh; wherein the preset diameter of the copper mesh is one tenth of the diameter of the flame when the combustible material on the combustion platform produces a stable flame.

9. The flame plasma potential distribution measurement system under simulated wildfire conditions according to claim 7, characterized in that: When a plurality of potential measuring units are placed at the height of the flame continuous area, the height of the flame discontinuous area and the height of the smoke area respectively, the center line of the copper mesh coincides with the center line of the flame when the combustibles on the combustion platform generate a stable flame.

10. The flame plasma potential distribution measurement system under simulated wildfire conditions according to claim 7, characterized in that: The potential measuring device further comprises: a voltage measuring device; The first metal buckle is connected to a voltage measuring device.

Images