CN117065262B - Automatic fire extinguishing and re-combustion preventing system and method for electrical equipment - Google Patents
Automatic fire extinguishing and re-combustion preventing system and method for electrical equipment Download PDFInfo
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- CN117065262B CN117065262B CN202311340889.3A CN202311340889A CN117065262B CN 117065262 B CN117065262 B CN 117065262B CN 202311340889 A CN202311340889 A CN 202311340889A CN 117065262 B CN117065262 B CN 117065262B
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000002485 combustion reaction Methods 0.000 title claims description 50
- 238000012360 testing method Methods 0.000 claims abstract description 303
- 230000000694 effects Effects 0.000 claims abstract description 63
- 238000011156 evaluation Methods 0.000 claims description 144
- 238000012544 monitoring process Methods 0.000 claims description 51
- 239000007789 gas Substances 0.000 claims description 33
- 239000000463 material Substances 0.000 claims description 29
- 239000000779 smoke Substances 0.000 claims description 28
- 238000004458 analytical method Methods 0.000 claims description 22
- 230000007613 environmental effect Effects 0.000 claims description 21
- 238000004364 calculation method Methods 0.000 claims description 16
- 238000001514 detection method Methods 0.000 claims description 9
- 239000003344 environmental pollutant Substances 0.000 claims description 9
- 231100000719 pollutant Toxicity 0.000 claims description 9
- 239000000356 contaminant Substances 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- QQZOPKMRPOGIEB-UHFFFAOYSA-N 2-Oxohexane Chemical class CCCCC(C)=O QQZOPKMRPOGIEB-UHFFFAOYSA-N 0.000 description 8
- 239000007788 liquid Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- WVSNNWIIMPNRDB-UHFFFAOYSA-N 1,1,1,3,3,4,4,5,5,6,6,6-dodecafluorohexan-2-one Chemical compound FC(F)(F)C(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F WVSNNWIIMPNRDB-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
Abstract
The invention discloses an automatic fire-extinguishing and anti-reburning system and method for electrical equipment, and relates to the technical field of electrical equipment fire extinguishment; by setting each test group, the fire extinguishing conditions of the fire extinguishing device at different temperatures in each test group are tested, so that the fire extinguishing effect corresponding to the fire extinguishing device is analyzed, the problem that fire extinguishing is not timely when electrical equipment is in fire in the prior art is solved, the automatic fire extinguishing and the back fire preventing phenomena of the electrical equipment are realized, the stability of the performance of the fire extinguishing device at different temperatures is ensured, the fire extinguishing effect of the electrical equipment is greatly improved, the integrity of the electrical equipment and the safety of the environment are ensured, and the property loss and the personal safety caused by fire are greatly reduced.
Description
Technical Field
The invention relates to the technical field of electrical equipment fire extinguishment, in particular to an automatic fire extinguishment and re-combustion prevention system and method for electrical equipment.
Background
Along with the continuous development of economy and industry, the use quantity of electrical equipment is also increased, but improper use and operation can possibly lead to phenomena such as electrical equipment faults and the like, and fire disaster is easy to occur, so that when the electrical equipment is in fire, fire is rapidly extinguished, the fire source is prevented from being re-combusted, the loss of the electrical equipment can be effectively reduced, and the safety of the electrical equipment and the environment is ensured.
In the prior art, the electrical equipment is in fire, a prompt is sent to a worker, then the worker uses a fire extinguisher to extinguish the fire, after the fire is detected, the fire has longer fire fermentation time from the prompt to the fire extinguishing period of the worker, the range and the severity of the fire are greatly increased, the danger of the fire extinguishing of the worker is also improved, the damage of the electrical equipment cannot be reduced, on the other hand, the fire extinguishing effect of the fire extinguisher at different temperatures is unstable, and therefore the fire extinguishing effect and the stability of the fire extinguisher cannot be guaranteed, so that the fire source is reburnt easily due to insufficient fire extinguishing of the fire extinguisher, and the property loss and the potential safety hazard caused by the fire extinguishing of the electrical equipment are further increased.
Disclosure of Invention
The invention aims to provide an automatic fire-extinguishing and re-combustion-preventing system and method for electrical equipment, which solve the problems in the background technology.
In order to solve the technical problems, the invention adopts the following technical scheme: in a first aspect, the invention provides an automatic fire extinguishing and re-ignition preventing system for electrical equipment, comprising the following modules: the fire extinguishing test module is used for setting each test group, further carrying out fire extinguishing test on the electric equipment in each test group, acquiring fire extinguishing information and equipment images corresponding to each test group after fire extinguishing is finished, and simultaneously laying each monitoring time point according to a preset time interval, and further acquiring environment information corresponding to each monitoring time point of each test group;
the test analysis module is used for extracting the environment temperature, the smoke concentration and the noise loudness corresponding to each test group at each monitoring time point from the environment information corresponding to each test group at each monitoring time point, calculating the reburning evaluation coefficient corresponding to each test group, extracting the pollutant gas concentration corresponding to each test group at each monitoring time point from the environment information corresponding to each test group, calculating the environment-friendly evaluation coefficient corresponding to each test group, extracting the response speed corresponding to the fire extinguishing device in each test group, the fire extinguishing material consumption and the temperature corresponding to the electrical equipment at each acquisition time point from the fire extinguishing information corresponding to each test group, analyzing the fire extinguishing effect evaluation coefficient corresponding to each test group, further analyzing the equipment safety evaluation coefficient corresponding to each test group according to the equipment image corresponding to each test group, and calculating the fire extinguishing evaluation coefficient corresponding to the fire extinguishing device in each test group according to the reburning evaluation coefficient, the environment-friendly evaluation coefficient, the fire extinguishing effect evaluation coefficient and the equipment safety evaluation coefficient corresponding to each test group;
the equipment analysis module is used for acquiring the condition temperatures and the fire extinguishing evaluation coefficients corresponding to the fire extinguishing devices in each test group, further acquiring the fire extinguishing evaluation coefficients corresponding to the fire extinguishing devices in each condition temperature, calculating the fire extinguishing effect coincidence coefficients corresponding to the fire extinguishing devices, and judging the fire extinguishing effects corresponding to the fire extinguishing devices;
and the display terminal is used for displaying the fire extinguishing effect corresponding to the fire extinguishing device.
Preferably, the fire extinguishing test is performed on the electrical equipment in each test group, and the specific test process is as follows: a1, standing each fire extinguishing device for a preset time period at each condition temperature, further respectively installing each fire extinguishing device in the electric equipment of each test group, respectively placing the electric equipment of each test group in the corresponding test box of each test group, and installing an ignition device at a preset position in the test box of each test group;
and A2, igniting the electric equipment in each test group by the ignition device in each test group according to the same fire situation and the same moment, starting fire extinguishing when the fire extinguishing device in each test group detects fire, taking the starting fire extinguishing moment as the starting acquisition moment, further arranging each acquisition time point according to a preset time interval, acquiring the temperature corresponding to each acquisition time point of the electric equipment, automatically closing fire extinguishing when the fire extinguishing is finished, and acquiring the response speed, the fire extinguishing time length and the fire extinguishing material consumption corresponding to the fire extinguishing device in each test group after the fire extinguishing test is finished, thereby completing the fire extinguishing test of the electric equipment in each test group.
Preferably, the fire extinguishing information comprises response speed, consumption of fire extinguishing material and corresponding temperature of the electrical equipment at each acquisition time point;
environmental information includes ambient temperature, smoke concentration, noise loudness, and concentration of contaminating gases.
Preferably, the calculating the post combustion evaluation coefficient corresponding to each test group comprises the following specific calculating process: substituting the environmental temperature, smoke concentration and noise loudness corresponding to each test group at each monitoring time point into a calculation formulaIn (1) obtaining the afterburning evaluation coefficient corresponding to the ith test group +.>Wherein T is it 、Y it 、Z it Respectively representing the corresponding environmental temperature, smoke concentration and noise loudness of the ith test group at the t monitoring time point, wherein T, Y, Z is respectively set allowable environmental temperature, allowable smoke concentration and allowable noise loudness, and +.>、/>、/>The weight factors corresponding to the set ambient temperature, smoke concentration and noise loudness are respectively represented by i, i=1, 2.
Preferably, the calculating the environmental protection evaluation coefficients corresponding to each test group comprises the following specific calculating process: each test group was monitored at eachSubstituting the concentration of the polluted gas corresponding to the time point into a calculation formulaIn (3) obtaining the environmental protection evaluation coefficient corresponding to the ith test group +.>Wherein w is it 、w i（t-1） Respectively representing the concentration of the pollutant gas corresponding to the ith test group at the t-th and t-1 th monitoring time points, wherein w is the set allowable pollutant gas concentration,/for the ith test group>For a set difference in permissible contaminant gas concentration, +.>、/>The set concentration of the polluted gas and the set weight factors corresponding to the difference of the concentration variation of the polluted gas are respectively adopted.
Preferably, the fire extinguishing effect evaluation coefficients corresponding to each test group are analyzed, and the specific analysis process is as follows: substituting the response speed corresponding to the fire extinguishing device in each test group, the consumption of the fire extinguishing material and the temperature corresponding to the electrical equipment at each acquisition time point into a calculation formulaIn the test group, the fire extinguishing effect evaluation coefficient corresponding to the ith test group is obtained +.>Wherein v is i 、c i Respectively represent the response speed and the consumption of fire extinguishing material corresponding to the fire extinguishing device in the ith test group, +.>、/>Respectively indicating that the electrical devices in the ith test group are in the ith test groupThe temperatures corresponding to the r and the r-1 collecting time points, v and fatin are respectively the preset reference response speed and the reference response speed difference of the fire extinguishing device, c is the preset reference consumption of fire extinguishing material, and the fatin>For a preset reference electrical device temperature drop difference, +.>、/>、/>The response speed, the consumption of fire extinguishing materials and the weight factors corresponding to the temperatures of the electrical equipment are respectively set for the fire extinguishing device, r represents the temperature corresponding to each acquisition time point, r=1, 2.
Preferably, the analyzing the equipment safety evaluation coefficients corresponding to each test group includes the following specific analysis processes: identifying the positions of the combustion areas corresponding to the electric devices in the test groups through image processing on the device images corresponding to the test groups, extracting the areas of the combustion areas corresponding to the electric devices in the test groups, arranging detection points in the combustion areas corresponding to the electric devices in the test groups according to the positions of the combustion areas corresponding to the electric devices in the test groups at intervals of a preset length, detecting the blackness value of each detection point of the combustion area corresponding to the electric devices in the test groups by using a blackmeter, and selecting the maximum blackness value from the blackness values of each detection point of the combustion area corresponding to the electric devices in the test groups as the blackness value of the combustion area corresponding to the electric devices in the test groups;
substituting the area of the combustion area and the blackness value of the combustion area corresponding to the electrical equipment in each test group into a calculation formulaIn the method, the device security evaluation coefficient corresponding to the ith test group is obtained +.>Wherein S is i 、d i Respectively representing the area of the combustion area and the blackness value of the combustion area corresponding to the electric equipment in the ith test group,/and the like>、/>The weight factors are respectively set according to the area of the combustion area and the blackness value of the combustion area.
Preferably, the calculation process of the fire extinguishing evaluation coefficient corresponding to the fire extinguishing device in each test group is as follows:wherein->Representing the fire extinguishing evaluation coefficient corresponding to the fire extinguishing device in the ith test group, < >>、/>、/>、/>And e represents a natural constant, wherein the weight factors correspond to the set afterburning evaluation coefficient, the environment-friendly evaluation coefficient, the fire extinguishing effect evaluation coefficient and the equipment safety evaluation coefficient respectively.
Preferably, the calculating the fire extinguishing effect corresponding to the fire extinguishing device accords with a coefficient, and the specific calculating process is as follows: comparing the fire-extinguishing evaluation coefficients corresponding to the fire-extinguishing devices in each condition temperature to obtain the fire-extinguishing evaluation coefficient difference between the fire-extinguishing devices in each condition temperature, selecting the maximum fire-extinguishing evaluation coefficient difference as the fire-extinguishing evaluation coefficient difference corresponding to the fire-extinguishing devices, and marking as the fire-extinguishing evaluation coefficient difference；
Thereby according to the calculation formulaObtaining the fire extinguishing effect corresponding to the fire extinguishing device to meet the coefficient +.>Wherein->、/>Respectively preset allowable fire extinguishing evaluation coefficient differences and standard fire extinguishing evaluation coefficients,the fire extinguishing evaluation coefficient corresponding to the fire extinguishing device in the j-th condition temperature is represented, j represents the number corresponding to each condition temperature, j=1, 2>、/>Respectively set fire extinguishing evaluation coefficient differences and weight factors corresponding to the fire extinguishing evaluation coefficients.
In a second aspect, the invention provides an automatic fire-extinguishing and re-combustion-preventing method for electrical equipment, comprising the following steps: step one, fire extinguishing test: setting each test group, further carrying out fire extinguishing test on the electric equipment in each test group, acquiring fire extinguishing information and equipment images corresponding to each test group after fire extinguishing is finished, and simultaneously laying each monitoring time point according to a preset time interval, and further acquiring environment information corresponding to each monitoring time point of each test group;
step two, test analysis: extracting the environment temperature, smoke concentration and noise loudness corresponding to each test group at each monitoring time point from the environment information corresponding to each monitoring time point, calculating the back fire evaluation coefficient corresponding to each test group, extracting the pollution gas concentration corresponding to each test group at each monitoring time point from the environment information corresponding to each monitoring time point, calculating the environment protection evaluation coefficient corresponding to each test group, extracting the response speed, the fire extinguishing material consumption and the temperature corresponding to the electrical equipment at each acquisition time point of the fire extinguishing device in each test group from the fire extinguishing information corresponding to each test group, analyzing the fire extinguishing effect evaluation coefficient corresponding to each test group, further analyzing the equipment safety evaluation coefficient corresponding to each test group according to the equipment image corresponding to each test group, and calculating the fire extinguishing evaluation coefficient corresponding to the fire extinguishing device in each test group according to the back fire evaluation coefficient, the environment protection evaluation coefficient, the fire extinguishing effect evaluation coefficient and the equipment safety evaluation coefficient corresponding to each test group;
step three, equipment analysis: acquiring the condition temperature and the fire extinguishing evaluation coefficient corresponding to the fire extinguishing device in each test group, further acquiring the fire extinguishing evaluation coefficient corresponding to the fire extinguishing device in each condition temperature, calculating the fire extinguishing effect coincidence coefficient corresponding to the fire extinguishing device, and judging the fire extinguishing effect corresponding to the fire extinguishing device;
step four, displaying the result: and the fire extinguishing effect corresponding to the fire extinguishing device is displayed.
The invention has the beneficial effects that: 1. the invention provides an automatic fire-extinguishing and anti-reburning system and method for electric equipment, which are used for testing the fire-extinguishing conditions of fire extinguishing devices at different temperatures in each test group by arranging each test group, so that the fire-extinguishing effect corresponding to the fire extinguishing devices is analyzed, the problem of untimely fire extinguishment of the electric equipment in the prior art is solved, the automatic fire extinguishing and anti-reburning phenomena of the electric equipment are realized, the performance stability of the fire extinguishing devices is ensured, the fire extinguishing effect of the electric equipment is greatly improved, the integrity of the electric equipment and the safety of the environment are ensured, and the property loss and personal safety caused by fire are greatly reduced.
2. According to the invention, in the test analysis module, the corresponding reburning evaluation coefficients of each test group are analyzed according to the corresponding environmental temperature, smoke concentration and noise loudness of each test group at each monitoring time point, so that the reburning possibility of the fire extinguishing device in each test group after fire extinguishing is reflected, and the fire extinguishing thoroughness of the fire extinguishing device is ensured; according to the pollution gas concentration corresponding to each test group at each monitoring time point, the environment-friendly evaluation coefficient corresponding to each test group is calculated, so that the influence on the environment when the fire extinguishing device extinguishes the fire is ensured, and the environment-friendly performance of the fire extinguishing is improved; according to the response speed, the consumption of the fire extinguishing materials and the temperature of the electrical equipment corresponding to each acquisition time point of the fire extinguishing devices in each test group, the fire extinguishing effect evaluation coefficients corresponding to each test group are analyzed, the sensitivity and the fire extinguishing effect of the fire extinguishing devices are effectively displayed, and the fire extinguishing efficiency of the fire extinguishing devices is improved; according to the equipment images corresponding to the test groups, the equipment safety evaluation coefficients corresponding to the test groups are analyzed, the integrity of the electrical equipment is effectively guaranteed, and the damage of the electrical equipment is reduced.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the system structure of the present invention.
FIG. 2 is a flow chart of the steps of the method of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, in a first aspect, the present invention provides an automatic fire extinguishing and re-ignition preventing system for an electrical device, including the following modules: the device comprises a fire extinguishing test module, a test analysis module, an equipment analysis module and a display terminal.
The fire extinguishing test module is used for setting each test group, further carrying out fire extinguishing test on the electric equipment in each test group, acquiring fire extinguishing information and equipment images corresponding to each test group after fire extinguishing is finished, and simultaneously laying each monitoring time point according to a preset time interval, and further acquiring environment information corresponding to each monitoring time point of each test group;
in a specific embodiment, the fire extinguishing test is performed on the electrical devices in each test group, and the specific test process is as follows: a1, standing each fire extinguishing device for a preset time period at each condition temperature, further respectively installing each fire extinguishing device in the electric equipment of each test group, respectively placing the electric equipment of each test group in the corresponding test box of each test group, and installing an ignition device at a preset position in the test box of each test group;
the types and specifications of the electrical devices in the test groups are the same, and the types and specifications of the ignition devices in the test groups are the same.
It is also to be noted that each fire extinguishing device is kept stand for a preset time period under each condition temperature, so that a foundation is laid for the subsequent analysis of fire extinguishment of the fire extinguishing devices under different temperatures, and the performance stability of the fire extinguishing devices is ensured.
The fire extinguishing device is a re-combustion preventing and extinguishing material, and the core raw material of the re-combustion preventing and extinguishing material is perfluorinated hexanone and is applied in a solid form. The perfluoro-hexanone is in a liquid state at normal temperature and normal pressure, and generally acts inside electrical equipment in a submerged mode, when in use, a special container and complex system equipment are needed, a certain special space is needed to be occupied, and the perfluoro-hexanone can only be used in a scene meeting the corresponding space requirement and has certain limitation.
The invention solves the application limitation of the liquid state of the perfluorinated hexanone by solidifying the perfluorinated hexanone, so that the application of the perfluorinated hexanone is wider and more flexible, the invention makes up the blank of unattended small space fire extinguishing means, and simultaneously solves the defect that other fire-fighting products can only protect large space.
And A2, igniting the electric equipment in each test group by the ignition device in each test group according to the same fire situation and the same moment, starting fire extinguishing when the fire extinguishing device in each test group detects fire, taking the starting fire extinguishing moment as the starting acquisition moment, further arranging each acquisition time point according to a preset time interval, acquiring the temperature corresponding to each acquisition time point of the electric equipment, automatically closing fire extinguishing when the fire extinguishing is finished, and acquiring the response speed, the fire extinguishing time length and the fire extinguishing material consumption corresponding to the fire extinguishing device in each test group after the fire extinguishing test is finished, thereby completing the fire extinguishing test of the electric equipment in each test group.
It should be noted that, temperature sensors are installed in each test box, when the temperature collected by the temperature sensors in each test box is greater than a set high temperature threshold, fire extinguishing devices in each test group are turned on, and when the temperature collected by the temperature sensors in each test box is less than a set low temperature threshold, fire extinguishing devices in each test group are turned off;
the fire extinguishing information comprises response speed, consumption of fire extinguishing materials and corresponding temperature of electrical equipment at each acquisition time point;
environmental information includes ambient temperature, smoke concentration, noise loudness, and concentration of contaminating gases.
The temperature sensors are arranged on the electrical equipment of each test group, the temperatures corresponding to the electrical equipment in each test group at each acquisition time point are acquired through the temperature sensors, and the response speed, the fire extinguishing time length and the fire extinguishing material consumption corresponding to the fire extinguishing devices in each test group are acquired from the fire extinguishing device control center after the fire extinguishing test is finished; the temperature sensor, the smoke sensor, the noise sensor and the gas sensor are arranged in the test boxes corresponding to the test groups, and the environmental temperature, the smoke concentration, the noise loudness and the pollution gas concentration of the test groups at each monitoring time point are respectively collected through the temperature sensor, the smoke sensor, the noise sensor and the gas sensor; a camera is arranged above each test box, and images of electrical equipment in each test group are collected through the camera and used as equipment images corresponding to each test group.
After the fire extinguishing device is started, the fire extinguishing device instantaneously releases the perfluorinated hexanone, the perfluorinated hexanone and the air form mixed gas, the mixed gas can absorb sufficient heat to destroy the balance of a combustion tetrahedron, so that a combustion area is quickly cooled down and is reduced to a temperature point at which flame is extinguished, and therefore the temperature of electrical equipment in each test group at each acquisition time point is acquired, and the temperature change of the combustion area is clearly shown; when the electrical equipment is reburning, the environment temperature rises, the smoke concentration rises or the electrical equipment emits noise, explosion sound or abnormal sounds such as arc light and sound, so that the environment temperature, the smoke concentration and the noise loudness corresponding to each test group at each monitoring time point are required to be collected;
the test analysis module is used for extracting the environment temperature, the smoke concentration and the noise loudness corresponding to each test group at each monitoring time point from the environment information corresponding to each test group at each monitoring time point, calculating the reburning evaluation coefficient corresponding to each test group, extracting the pollutant gas concentration corresponding to each test group at each monitoring time point from the environment information corresponding to each test group, calculating the environment-friendly evaluation coefficient corresponding to each test group, extracting the response speed corresponding to the fire extinguishing device in each test group, the fire extinguishing material consumption and the temperature corresponding to the electrical equipment at each acquisition time point from the fire extinguishing information corresponding to each test group, analyzing the fire extinguishing effect evaluation coefficient corresponding to each test group, further analyzing the equipment safety evaluation coefficient corresponding to each test group according to the equipment image corresponding to each test group, and calculating the fire extinguishing evaluation coefficient corresponding to the fire extinguishing device in each test group according to the reburning evaluation coefficient, the environment-friendly evaluation coefficient, the fire extinguishing effect evaluation coefficient and the equipment safety evaluation coefficient corresponding to each test group; compared with the liquid form, the solid form of the perfluorinated hexanone is more flexible in application, is not limited by any space, and is particularly important that the solid form of perfluorinated hexanone is very close to a protection area, can instantly and effectively extinguish a fire source, can extinguish the fire source in an initial stage, can minimize the loss of fire, and can instantly and effectively extinguish the fire source by installing a fire extinguishing device in electrical equipment, thereby reducing the damage of the electrical equipment, and being beneficial to the analysis of the appearance damage condition of the electrical equipment in the subsequent analysis.
In a specific embodiment, the calculating the post-combustion evaluation coefficient corresponding to each test group specifically includes the following steps: substituting the environmental temperature, smoke concentration and noise loudness corresponding to each test group at each monitoring time point into a calculation formulaIn (1) obtaining the afterburning evaluation coefficient corresponding to the ith test group +.>Wherein T is it 、Y it 、Z it Respectively representing the corresponding environmental temperature, smoke concentration and noise loudness of the ith test group at the t monitoring time point, wherein T, Y, Z is respectively set allowable environmental temperature, allowable smoke concentration and allowable noise loudness, and +.>、/>、/>The weight factors corresponding to the set ambient temperature, smoke concentration and noise loudness are respectively represented by i, i=1, 2.
In a specific embodiment, the calculating the environmental protection evaluation coefficients corresponding to each test group specifically includes the following steps: substituting the concentration of the polluted gas corresponding to each test group at each monitoring time point into a calculation formulaIn (3) obtaining the environmental protection evaluation coefficient corresponding to the ith test group +.>Wherein w is it 、w i（t-1） Respectively represent the ith test groupThe concentration of the pollutant gas corresponding to the t-1 monitoring time point, w is the set allowable concentration of the pollutant gas,/for the t-1 monitoring time point>For a set difference in permissible contaminant gas concentration, +.>、/>The set concentration of the polluted gas and the set weight factors corresponding to the difference of the concentration variation of the polluted gas are respectively adopted.
In a specific embodiment, the fire extinguishing effect evaluation coefficients corresponding to each test group are analyzed, and the specific analysis process is as follows: substituting the response speed corresponding to the fire extinguishing device in each test group, the consumption of the fire extinguishing material and the temperature corresponding to the electrical equipment at each acquisition time point into a calculation formulaIn the test group, the fire extinguishing effect evaluation coefficient corresponding to the ith test group is obtained +.>Wherein v is i 、c i Respectively represent the response speed and the consumption of fire extinguishing material corresponding to the fire extinguishing device in the ith test group, +.>、/>The temperatures corresponding to the electrical equipment in the ith test group at the (r) th and (r-1) th acquisition time points are respectively represented, v and v are respectively the preset reference response speed and the reference response speed difference of the fire extinguishing device, and c is the preset reference consumption of fire extinguishing material>For a preset reference electrical device temperature drop difference, +.>、/>、/>The response speed, the consumption of fire extinguishing materials and the weight factors corresponding to the temperatures of the electrical equipment are respectively set for the fire extinguishing device, r represents the temperature corresponding to each acquisition time point, r=1, 2.
In a specific embodiment, the analyzing the device security assessment coefficients corresponding to each test group includes the following steps: identifying the positions of the combustion areas corresponding to the electric devices in the test groups through image processing on the device images corresponding to the test groups, extracting the areas of the combustion areas corresponding to the electric devices in the test groups, arranging detection points in the combustion areas corresponding to the electric devices in the test groups according to the positions of the combustion areas corresponding to the electric devices in the test groups at intervals of a preset length, detecting the blackness value of each detection point of the combustion area corresponding to the electric devices in the test groups by using a blackmeter, and selecting the maximum blackness value from the blackness values of each detection point of the combustion area corresponding to the electric devices in the test groups as the blackness value of the combustion area corresponding to the electric devices in the test groups;
substituting the area of the combustion area and the blackness value of the combustion area corresponding to the electrical equipment in each test group into a calculation formulaIn the method, the device security evaluation coefficient corresponding to the ith test group is obtained +.>Wherein S is i 、d i Respectively representing the area of the combustion area and the blackness value of the combustion area corresponding to the electric equipment in the ith test group,/and the like>、/>The weight factors are respectively set according to the area of the combustion area and the blackness value of the combustion area.
The longer the electric device burns, the more serious the damage is, and the greater the blackness value is.
According to the invention, in the test analysis module, the corresponding reburning evaluation coefficients of each test group are analyzed according to the corresponding environmental temperature, smoke concentration and noise loudness of each test group at each monitoring time point, so that the reburning possibility of the fire extinguishing device in each test group after fire extinguishing is reflected, and the fire extinguishing thoroughness of the fire extinguishing device is ensured; according to the pollution gas concentration corresponding to each test group at each monitoring time point, the environment-friendly evaluation coefficient corresponding to each test group is calculated, so that the influence on the environment when the fire extinguishing device extinguishes the fire is ensured, and the environment-friendly performance of the fire extinguishing is improved; according to the response speed, the consumption of the fire extinguishing materials and the temperature of the electrical equipment corresponding to each acquisition time point of the fire extinguishing devices in each test group, the fire extinguishing effect evaluation coefficients corresponding to each test group are analyzed, the sensitivity and the fire extinguishing effect of the fire extinguishing devices are effectively displayed, and the fire extinguishing efficiency of the fire extinguishing devices is improved; according to the equipment images corresponding to the test groups, the equipment safety evaluation coefficients corresponding to the test groups are analyzed, the integrity of the electrical equipment is effectively guaranteed, and the damage of the electrical equipment is reduced.
In a specific embodiment, the fire extinguishing evaluation coefficients corresponding to the fire extinguishing devices in each test group are calculated as follows:wherein->Representing the fire extinguishing evaluation coefficient corresponding to the fire extinguishing device in the ith test group, < >>、/>、/>、/>And e represents a natural constant, wherein the weight factors correspond to the set afterburning evaluation coefficient, the environment-friendly evaluation coefficient, the fire extinguishing effect evaluation coefficient and the equipment safety evaluation coefficient respectively.
The equipment analysis module is used for acquiring the condition temperatures and the fire extinguishing evaluation coefficients corresponding to the fire extinguishing devices in each test group, further acquiring the fire extinguishing evaluation coefficients corresponding to the fire extinguishing devices in each condition temperature, calculating the fire extinguishing effect coincidence coefficients corresponding to the fire extinguishing devices, and judging the fire extinguishing effects corresponding to the fire extinguishing devices;
in a specific embodiment, the calculating the fire extinguishing effect coincidence coefficient corresponding to the fire extinguishing device specifically includes the following steps: comparing the fire-extinguishing evaluation coefficients corresponding to the fire-extinguishing devices in each condition temperature to obtain the fire-extinguishing evaluation coefficient difference between the fire-extinguishing devices in each condition temperature, selecting the maximum fire-extinguishing evaluation coefficient difference as the fire-extinguishing evaluation coefficient difference corresponding to the fire-extinguishing devices, and marking as the fire-extinguishing evaluation coefficient difference；
Thereby according to the calculation formulaObtaining the fire extinguishing effect corresponding to the fire extinguishing device to meet the coefficient +.>Wherein->、/>Respectively preset allowable fire extinguishing evaluation coefficient differences and standard fire extinguishing evaluation coefficients,fire extinguishing evaluation corresponding to fire extinguishing device in j-th condition temperatureEstimating coefficient, j represents the number corresponding to each condition temperature, j=1, 2. Once again, m is chosen, m is any integer greater than 2, < >>、/>Respectively set fire extinguishing evaluation coefficient differences and weight factors corresponding to the fire extinguishing evaluation coefficients.
In a specific embodiment, the specific judging process is as follows: and comparing the fire extinguishing effect coincidence coefficient corresponding to the fire extinguishing device with a preset fire extinguishing effect coincidence coefficient threshold value, if the fire extinguishing effect coincidence coefficient corresponding to the fire extinguishing device is larger than or equal to the preset fire extinguishing effect coincidence coefficient threshold value, judging that the fire extinguishing effect corresponding to the fire extinguishing device is better, otherwise, judging that the fire extinguishing effect corresponding to the fire extinguishing device is poorer.
And the display terminal is used for displaying the fire extinguishing effect corresponding to the fire extinguishing device.
According to the embodiment of the invention, the fire extinguishing conditions of the fire extinguishing devices at different temperatures in each test group are tested by arranging each test group, so that the corresponding fire extinguishing effect of the fire extinguishing devices is analyzed, the problem that fire extinguishing is not timely when electrical equipment is in fire in the prior art is solved, the automatic fire extinguishing and the back fire preventing phenomena of the electrical equipment are realized, the performance stability of the fire extinguishing devices is ensured, the fire extinguishing effect of the electrical equipment is greatly improved, the integrity of the electrical equipment and the safety of the environment are ensured, and the property loss and the personal safety caused by fire are greatly reduced.
Referring to fig. 2, in a second aspect, the present invention provides an automatic fire extinguishing and re-ignition preventing method for an electrical device, including the following steps: step one, fire extinguishing test: setting each test group, further carrying out fire extinguishing test on the electric equipment in each test group, acquiring fire extinguishing information and equipment images corresponding to each test group after fire extinguishing is finished, and simultaneously laying each monitoring time point according to a preset time interval, and further acquiring environment information corresponding to each monitoring time point of each test group;
step two, test analysis: extracting the environment temperature, smoke concentration and noise loudness corresponding to each test group at each monitoring time point from the environment information corresponding to each monitoring time point, calculating the back fire evaluation coefficient corresponding to each test group, extracting the pollution gas concentration corresponding to each test group at each monitoring time point from the environment information corresponding to each monitoring time point, calculating the environment protection evaluation coefficient corresponding to each test group, extracting the response speed, the fire extinguishing material consumption and the temperature corresponding to the electrical equipment at each acquisition time point of the fire extinguishing device in each test group from the fire extinguishing information corresponding to each test group, analyzing the fire extinguishing effect evaluation coefficient corresponding to each test group, further analyzing the equipment safety evaluation coefficient corresponding to each test group according to the equipment image corresponding to each test group, and calculating the fire extinguishing evaluation coefficient corresponding to the fire extinguishing device in each test group according to the back fire evaluation coefficient, the environment protection evaluation coefficient, the fire extinguishing effect evaluation coefficient and the equipment safety evaluation coefficient corresponding to each test group;
step three, equipment analysis: acquiring the condition temperature and the fire extinguishing evaluation coefficient corresponding to the fire extinguishing device in each test group, further acquiring the fire extinguishing evaluation coefficient corresponding to the fire extinguishing device in each condition temperature, calculating the fire extinguishing effect coincidence coefficient corresponding to the fire extinguishing device, and judging the fire extinguishing effect corresponding to the fire extinguishing device;
step four, displaying the result: and the fire extinguishing effect corresponding to the fire extinguishing device is displayed.
The foregoing is merely illustrative and explanatory of the principles of the invention, as various modifications and additions may be made to the specific embodiments described, or similar thereto, by those skilled in the art, without departing from the principles of the invention or beyond the scope of the appended claims.
Claims (10)
1. An automatic fire extinguishing and re-ignition preventing system for electrical equipment is characterized by comprising the following modules:
the fire extinguishing test module is used for setting each test group, further carrying out fire extinguishing test on the electric equipment in each test group, acquiring fire extinguishing information and equipment images corresponding to each test group after fire extinguishing is finished, and simultaneously laying each monitoring time point according to a preset time interval, and further acquiring environment information corresponding to each monitoring time point of each test group;
the test analysis module is used for extracting the environment temperature, the smoke concentration and the noise loudness corresponding to each test group at each monitoring time point from the environment information corresponding to each test group at each monitoring time point, calculating the reburning evaluation coefficient corresponding to each test group, extracting the pollutant gas concentration corresponding to each test group at each monitoring time point from the environment information corresponding to each test group, calculating the environment-friendly evaluation coefficient corresponding to each test group, extracting the response speed corresponding to the fire extinguishing device in each test group, the fire extinguishing material consumption and the temperature corresponding to the electrical equipment at each acquisition time point from the fire extinguishing information corresponding to each test group, analyzing the fire extinguishing effect evaluation coefficient corresponding to each test group, further analyzing the equipment safety evaluation coefficient corresponding to each test group according to the equipment image corresponding to each test group, and calculating the fire extinguishing evaluation coefficient corresponding to the fire extinguishing device in each test group according to the reburning evaluation coefficient, the environment-friendly evaluation coefficient, the fire extinguishing effect evaluation coefficient and the equipment safety evaluation coefficient corresponding to each test group;
the equipment analysis module is used for acquiring the condition temperatures and the fire extinguishing evaluation coefficients corresponding to the fire extinguishing devices in each test group, further acquiring the fire extinguishing evaluation coefficients corresponding to the fire extinguishing devices in each condition temperature, calculating the fire extinguishing effect coincidence coefficients corresponding to the fire extinguishing devices, and judging the fire extinguishing effects corresponding to the fire extinguishing devices;
and the display terminal is used for displaying the fire extinguishing effect corresponding to the fire extinguishing device.
2. The automatic fire-extinguishing and fire-preventing system for electric equipment according to claim 1, wherein the electric equipment in each test group is subjected to fire-extinguishing test, and the specific test process is as follows:
a1, standing each fire extinguishing device for a preset time period at each condition temperature, further respectively installing each fire extinguishing device in the electric equipment of each test group, respectively placing the electric equipment of each test group in the corresponding test box of each test group, and installing an ignition device at a preset position in the test box of each test group;
and A2, igniting the electric equipment in each test group by the ignition device in each test group according to the same fire situation and the same moment, starting fire extinguishing when the fire extinguishing device in each test group detects fire, taking the starting fire extinguishing moment as the starting acquisition moment, further arranging each acquisition time point according to a preset time interval, acquiring the temperature corresponding to each acquisition time point of the electric equipment, automatically closing fire extinguishing when the fire extinguishing is finished, and acquiring the response speed, the fire extinguishing time length and the fire extinguishing material consumption corresponding to the fire extinguishing device in each test group after the fire extinguishing test is finished, thereby completing the fire extinguishing test of the electric equipment in each test group.
3. The automatic fire-extinguishing and back-fire-preventing system for electrical equipment according to claim 1, wherein the fire-extinguishing information comprises response speed, consumption of fire-extinguishing material and corresponding temperature of the electrical equipment at each acquisition time point;
environmental information includes ambient temperature, smoke concentration, noise loudness, and concentration of contaminating gases.
4. The automatic fire-extinguishing and re-combustion-preventing system for electrical equipment according to claim 1, wherein the calculating of the re-combustion evaluation coefficient corresponding to each test group comprises the following specific calculating process: substituting the environmental temperature, smoke concentration and noise loudness corresponding to each test group at each monitoring time point into a calculation formulaIn (1) obtaining the afterburning evaluation coefficient corresponding to the ith test group +.>Wherein T is it 、Y it 、Z it Respectively representing the corresponding environmental temperature, smoke concentration and noise loudness of the ith test group at the t monitoring time point, and T, Y, Z is respectively set allowable environmental temperaturePermissible smoke concentration, permissible noise loudness, +.>、/>、/>The weight factors corresponding to the set ambient temperature, smoke concentration and noise loudness are respectively represented by i, i=1, 2.
5. The automatic fire-extinguishing and back-fire-preventing system for electrical equipment according to claim 4, wherein the calculating of the environmental assessment coefficients corresponding to each test group comprises the following specific calculating process: substituting the concentration of the polluted gas corresponding to each test group at each monitoring time point into a calculation formulaIn (3) obtaining the environmental protection evaluation coefficient corresponding to the ith test group +.>Wherein w is it 、w i（t-1） Respectively representing the concentration of the pollutant gas corresponding to the ith test group at the t-th and t-1 th monitoring time points, wherein w is the set allowable pollutant gas concentration,/for the ith test group>For a set difference in permissible contaminant gas concentration, +.>、/>Respectively the set concentration of the polluted gas and the difference of the concentration variation of the polluted gasCorresponding weight factors.
6. The automatic fire-extinguishing and fire-preventing system for electric equipment according to claim 5, wherein the analyzing of the fire-extinguishing effect evaluation coefficients corresponding to each test group comprises the following specific analyzing process: substituting the response speed corresponding to the fire extinguishing device in each test group, the consumption of the fire extinguishing material and the temperature corresponding to the electrical equipment at each acquisition time point into a calculation formulaIn the test group, the fire extinguishing effect evaluation coefficient corresponding to the ith test group is obtained +.>Wherein v is i 、c i Respectively represent the response speed and the consumption of fire extinguishing material corresponding to the fire extinguishing device in the ith test group, +.>、/>The temperatures corresponding to the electrical equipment in the ith test group at the (r) th and (r-1) th acquisition time points are respectively represented, v and v are respectively the preset reference response speed and the reference response speed difference of the fire extinguishing device, and c is the preset reference consumption of fire extinguishing material>For a preset reference electrical device temperature drop difference, +.>、/>、/>Respectively set response speed and extinguishing speed corresponding to the fire extinguishing deviceThe fire material consumption amount and the weight factor corresponding to the temperature of the electrical equipment, r represents the temperature corresponding to each acquisition time point, r=1, 2.
7. The automatic fire-extinguishing and back-fire-preventing system for electrical equipment according to claim 6, wherein the analyzing the equipment safety evaluation coefficients corresponding to each test group comprises the following specific analyzing process:
identifying the positions of the combustion areas corresponding to the electric devices in the test groups through image processing on the device images corresponding to the test groups, extracting the areas of the combustion areas corresponding to the electric devices in the test groups, arranging detection points in the combustion areas corresponding to the electric devices in the test groups according to the positions of the combustion areas corresponding to the electric devices in the test groups at intervals of a preset length, detecting the blackness value of each detection point of the combustion area corresponding to the electric devices in the test groups by using a blackmeter, and selecting the maximum blackness value from the blackness values of each detection point of the combustion area corresponding to the electric devices in the test groups as the blackness value of the combustion area corresponding to the electric devices in the test groups;
substituting the area of the combustion area and the blackness value of the combustion area corresponding to the electrical equipment in each test group into a calculation formulaIn the method, the device security evaluation coefficient corresponding to the ith test group is obtained +.>Wherein S is i 、d i Respectively representing the area of the combustion area and the blackness value of the combustion area corresponding to the electric equipment in the ith test group,/and the like>、/>The weight factors are respectively set according to the area of the combustion area and the blackness value of the combustion area.
8. The automatic fire-extinguishing and fire-preventing system for electric equipment according to claim 7, wherein the fire-extinguishing evaluation coefficients corresponding to the fire extinguishing devices in each test group are calculated as follows:wherein->Representing the fire extinguishing evaluation coefficient corresponding to the fire extinguishing device in the ith test group, < >>、/>、/>、/>And e represents a natural constant, wherein the weight factors correspond to the set afterburning evaluation coefficient, the environment-friendly evaluation coefficient, the fire extinguishing effect evaluation coefficient and the equipment safety evaluation coefficient respectively.
9. The automatic fire-extinguishing and re-combustion-preventing system for electrical equipment according to claim 1, wherein the fire-extinguishing effect corresponding to the calculated fire-extinguishing device meets the coefficient, and the specific calculation process is as follows:
comparing the fire-extinguishing evaluation coefficients corresponding to the fire-extinguishing devices in each condition temperature to obtain the fire-extinguishing evaluation coefficient difference between the fire-extinguishing devices in each condition temperature, selecting the maximum fire-extinguishing evaluation coefficient difference as the fire-extinguishing evaluation coefficient difference corresponding to the fire-extinguishing devices, and marking as the fire-extinguishing evaluation coefficient difference；
Thus, according to the meterCalculation formulaObtaining the fire extinguishing effect corresponding to the fire extinguishing device to meet the coefficient +.>Wherein->、/>Respectively preset allowable fire extinguishing evaluation coefficient difference and standard fire extinguishing evaluation coefficient, < ->The fire extinguishing evaluation coefficient corresponding to the fire extinguishing device in the j-th condition temperature is represented, j represents the number corresponding to each condition temperature, j=1, 2>、/>Respectively set fire extinguishing evaluation coefficient differences and weight factors corresponding to the fire extinguishing evaluation coefficients.
10. An electrical equipment automatic fire extinguishing and back fire preventing method for executing the electrical equipment automatic fire extinguishing and back fire preventing system according to any one of claims 1 to 9, characterized by comprising the steps of:
step one, fire extinguishing test: setting each test group, further carrying out fire extinguishing test on the electric equipment in each test group, acquiring fire extinguishing information and equipment images corresponding to each test group after fire extinguishing is finished, and simultaneously laying each monitoring time point according to a preset time interval, and further acquiring environment information corresponding to each monitoring time point of each test group;
step two, test analysis: extracting the environment temperature, smoke concentration and noise loudness corresponding to each test group at each monitoring time point from the environment information corresponding to each monitoring time point, calculating the back fire evaluation coefficient corresponding to each test group, extracting the pollution gas concentration corresponding to each test group at each monitoring time point from the environment information corresponding to each monitoring time point, calculating the environment protection evaluation coefficient corresponding to each test group, extracting the response speed, the fire extinguishing material consumption and the temperature corresponding to the electrical equipment at each acquisition time point of the fire extinguishing device in each test group from the fire extinguishing information corresponding to each test group, analyzing the fire extinguishing effect evaluation coefficient corresponding to each test group, further analyzing the equipment safety evaluation coefficient corresponding to each test group according to the equipment image corresponding to each test group, and calculating the fire extinguishing evaluation coefficient corresponding to the fire extinguishing device in each test group according to the back fire evaluation coefficient, the environment protection evaluation coefficient, the fire extinguishing effect evaluation coefficient and the equipment safety evaluation coefficient corresponding to each test group;
step three, equipment analysis: acquiring the condition temperature and the fire extinguishing evaluation coefficient corresponding to the fire extinguishing device in each test group, further acquiring the fire extinguishing evaluation coefficient corresponding to the fire extinguishing device in each condition temperature, calculating the fire extinguishing effect coincidence coefficient corresponding to the fire extinguishing device, and judging the fire extinguishing effect corresponding to the fire extinguishing device;
step four, displaying the result: and the fire extinguishing effect corresponding to the fire extinguishing device is displayed.
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