CN1737529A - Forest fire simulated test equipment for polymer insulator - Google Patents

Forest fire simulated test equipment for polymer insulator Download PDF

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Publication number
CN1737529A
CN1737529A CNA2005100908084A CN200510090808A CN1737529A CN 1737529 A CN1737529 A CN 1737529A CN A2005100908084 A CNA2005100908084 A CN A2005100908084A CN 200510090808 A CN200510090808 A CN 200510090808A CN 1737529 A CN1737529 A CN 1737529A
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CN
China
Prior art keywords
tensile force
unit
polymer insulator
temperature
burner
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Granted
Application number
CNA2005100908084A
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Chinese (zh)
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CN100443878C (en
Inventor
崔仁赫
李东一
郑润焕
崔长弦
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Korea Electric Power Corp
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Korea Electric Power Corp
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Publication of CN1737529A publication Critical patent/CN1737529A/en
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Publication of CN100443878C publication Critical patent/CN100443878C/en
Expired - Fee Related legal-status Critical Current
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • G01N3/18Performing tests at high or low temperatures
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • G01N3/10Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
    • G01N3/12Pressure testing
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • G01N3/14Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by dead weight, e.g. pendulum; generated by springs tension

Abstract

A device for forest fire simulation test of a polymer insulator is provided, which comprises a heating unit arranged below the polymer insulator that is positioned inside a heating furnace to supply a heating source; a stretching force supply unit arranged collinearly to the polymer insulator and used to supply the polymer insulator with a stretching force when the corresponding end of the polymer insulator is fixed to a fixation clamp; a stretching force measuring unit for measuring the stretching force applied to the polymer insulator, the stretching force measuring unit comprising a dynamometer that is used to convert a dependent variable of the polymer insulator produced by the stretching force supply unit to a resistance to measure loads, and is arranged in the same line as the stretching force supply unit and positioned behind thereof, and a data storage/output unit for storing and output temperature values of the heating unit and data values measured by the stretching force measuring unit.

Description

The forest fire simulated test equipment that is used for polymer insulator
Technical field
The present invention relates to a kind of forest fire simulated test equipment that is used for polymer insulator, more specifically, relate to a kind of can be to the refractability of the polymer insulator that uses on the power transmission line and the forest fire simulated test equipment that is used for polymer insulator that tensile force is measured simultaneously and tested, but it is simulated fire situation and described polymer insulator body is under the situation of simulated fire also, take this to infer the performance and the load of polymer insulator, replace or keep in repair described polymer insulator, and therefore avoid the generation and the resource of accident, the loss of life and property.
Background technology
Usually, 99% insulator nearly of Korea S's use is a ceramics insulator.On the other hand, polymer insulator owing to its low cost, install easily and light weight gets more and more and uses in other country.For this reason, the use of polymer insulator is subjected to scrutiny in Korea S.Yet Korea S nearly 70% area comprises the mountain area, thereby presses for when forest fire takes place, and polymer insulator is checked.
Simultaneously, polymer insulator is carried out the tensile force test, but do not carry out the fire testing of polymer insulator in Korea S.And, there are not to measure the tensile strength and the breaking load of polymer insulator when fire takes place.Because test unit and method are complicated and be difficult to operation, so do not carry out the fail-test of polymer insulator based on temperature variation.Therefore, the reliability at Korea S's polymer insulator seriously reduces.
Summary of the invention
Therefore, the present invention considers to address the above problem, and the purpose of this invention is to provide a kind of forest fire test unit that is used for polymer insulator, it can measure and test refractability and the tensile force that is used for the polymer insulator on the power transmission line, to infer the q﹠r of described polymer insulator, thereby can measure tensile force (0 to 50 ton) and the breaking load of this polymer insulator simultaneously based on the temperature variation similar (environment temperature is up to 600 ℃) to forest fire, take this to estimate the performance of described polymer insulator and the load that when forest fire takes place, is produced, therefore, avoid the generation and the resource of accident, the loss of life and property.
According to the present invention, above and other purpose can be finished by a kind of forest fire simulated test equipment that is used for polymer insulator is provided, described simulation test device comprises: a heating unit, its below that is arranged on a polymer insulator is used to provide heating source, and this polymer insulator is placed in the heating furnace; One be placed on described polymer insulator same straight line on tensile force the unit is provided, it is used for providing a tensile force for described polymer insulator when described polymer insulator is fixed in stationary fixture; A tensile force measuring unit, it is used to measure the tensile force that puts on described polymer insulator, described tensile force measuring unit comprises a dynamometer, this dynamometer be used for will provide by described tensile force the dependent variable of the polymer insulator that produces of unit be converted into resistance with sensing lead, described dynamometer is positioned at described tensile force to be provided on the identical straight line in unit, and is arranged on the back that this tensile force provides the unit; And one data storage/output unit, it is used to store and export the tensile force data of the temperature data and the tensile force measuring unit of described heating unit.
According to the present invention, polymer insulator is fixed to the stationary fixture of described test unit, and heat acts on described polymer insulator from the below of described polymer insulator, and tensile force acts on polymer insulator simultaneously.Carry out described tensile force test like this.Therefore, described polymer insulator is under the situation identical with real fire, takes this to estimate the load performance of described polymer insulator, replaces or repair described polymer insulator, therefore avoids the generation of accident.
Preferably, described heating unit comprises: a burner, and it has a plurality of nozzles disposed thereon, is used for by described nozzle emission flame; And a lifting handle, it is used for described burner is risen to a predetermined altitude.Therefore, the fire-resistant and tensile force of described polymer insulator test can be carried out under the temperature identical with real fire.
Preferably, the described forest fire simulated test equipment that is used for polymer insulator further comprises: a plurality of sensors, and the pre-position that it is installed in described burner is used to detect the flame temperature that is produced by burner; And a flame control unit, its be used for by described sensor to flame temperature compare with a predetermined temperature, with control flame temperature equal described predetermined temperature.Therefore, the output valve of the sensor of measuring the temperature in the burner being averaged---described burner provides high temperature for described polymer insulator---and described flame control unit controls this medial temperature and equates with described predetermined temperature.
Preferably, the number of sensor has three at least.Particularly, described sensor is installed in front portion, middle part and the rear portion of burner internal-combustion device.To detected flame temperature averages by sensor, control average flame temperature simultaneously and equate with described predetermined temperature.
Preferably, the described forest fire simulated test equipment that is used for polymer insulator further comprises: a tensile force control module, it is used for being input to described tensile force in advance based on one provides the predetermined tensile force control of unit to be applied to the tensile force of described polymer insulator.Therefore, when the fire-resistant and tensile force test of carrying out described polymer insulator, it is constant that the tensile force measurement range keeps.
Preferably, described data storage/output unit comprises: a computing machine, and it is used to handle and store the temperature of the heating unit of being controlled by described main control unit and the output valve of described tensile force; And an output unit, it is used for exporting final output valve from described computing machine with hard copy.Thereby, calculate and export in real time the result of the fire-resistant and tensile force test of described polymer insulator in real time with hard copy.
Preferably, described data storage/output unit further comprises: a display screen, it is used for showing in real time true temperature and the predetermined temperature and the curve map thereof of described burner, and shows in real time according to the test findings after the algorithm process, that obtain from the test of the tensile force of described polymer insulator and the figure of broken curve as a result of output valve and described polymer insulator.Thereby the operator can clearly learn the information of measured value in real time.
Description of drawings
Can understand above the present invention better and other purpose, feature and other advantage by the detailed description of carrying out in conjunction with following accompanying drawing, in described accompanying drawing:
Fig. 1 shows the side view of the forest fire simulated test equipment that is used for polymer insulator according to a preferred embodiment of the invention;
Fig. 2 shows the vertical view of the forest fire simulated test equipment that is used for polymer insulator according to a preferred embodiment of the invention;
Fig. 3 is a process flow diagram, shows the performed process of the forest fire simulated test equipment that is used for polymer insulator according to a preferred embodiment of the invention;
Fig. 4 shows the view of a display screen, and this display screen has shown the measured test figure of forest fire simulated test equipment that is used for polymer insulator according to the preferred embodiment of the invention in real time.
Embodiment
Now, describe a preferred embodiment of the present invention in detail with reference to accompanying drawing.
Fig. 1 is for being used for the side view of the forest fire simulated test equipment of polymer insulator according to the preferred embodiment of the invention, Fig. 2 is for being used for the vertical view of the forest fire simulated test equipment of polymer insulator according to the preferred embodiment of the invention, Fig. 3 is a process flow diagram, it shows the process that forest fire simulated test equipment carried out that is used for polymer insulator according to a preferred embodiment of the invention, Fig. 4 shows the view of a display screen, and this display screen is used for showing in real time the measured test figure of the forest fire simulated test equipment that is used for polymer insulator according to a preferred embodiment of the invention.
As shown in Figure 1, the forest fire simulated test equipment that is used for polymer insulator according to a preferred embodiment of the invention comprises: a heating furnace 110 that is installed on the pedestal 100, described heating furnace 110 has a Room 112, and the fire-resistant and tensile force test of polymer insulator 132 is carried out in this chamber; One heating unit 120, its be set in place described polymer insulator 132 in described heating furnace 110 the below, be used to provide heating source; A flame control unit 160 that is connected with described heating unit 120 is used for flame temperature is compared with a predetermined temperature, equals described predetermined temperature to control described flame temperature; One tensile force provides unit 140, when it is used for being fixed to stationary fixture 130 in the opposite end with described polymer insulator 132, for described polymer insulator 132 provides tensile force; One tensile force control module (not shown) is used to control the tensile force that described tensile force provides unit 140; A tensile force measuring unit 150, it utilizes a dynamometer L to measure provides unit 140 to put on the tensile force of described polymer insulator 132 by described tensile force; And main control unit (not shown), be used to control the temperature of described heating unit 120 and the tensile force that described tensile force provides unit 140, and the measured value of tensile force is sent to one data storage/output unit 170, the temperature of these data storage/output unit 170 storages and output heating unit 120 and the numerical value of measuring by described tensile force measuring unit 150.
Described heating furnace 110 is installed on the described pedestal 100.Described heating furnace 110 by a kind of special material for example fire resistive material make, make its safety that can stably keep described heating furnace 110, and the temperature variation minimum of described heating furnace 110.Be provided with described stationary fixture 130 in the chamber 112 of described heating furnace 110, it is provided for the opposite end of the polymer insulator 132 that fixing described need test in pairs.One side of described chamber 112 is equipped with the fireproof glass window 114 of a switching regulator, and the operator can determine the variation of described polymer insulator 132 by this fireproof glass window.
End at the inner bottom surface of heating furnace 110 vertically is equipped with a fixture 116.The inner edge member of described fixture 116 is provided with horizontal axostylus axostyle S, and it extends outside the described heating furnace 110.The end of described horizontal axostylus axostyle S is fixing by another fixture 116.On described horizontal axostylus axostyle S a moving member 118 is installed, it can slide along described horizontal axostylus axostyle S.Described tensile force provides unit 140 to be installed in a side of described moving member 118.
As described above, described stationary fixture 130 is provided with in pairs.In the described stationary fixture 130 one is fixed on the loading bench 119 of described left side fixture 116, and another stationary fixture 130 is fixed on another loading bench 119, and this another loading bench 119 and described tensile force provide the preceding end in contact of a piston rod 142 of unit 140.This is arranged to be located along the same line with described piston rod 142 to stationary fixture 130.
As shown in Figure 2, the described stationary fixture 130 that is provided with in pairs between loading stage 119 can move into and shift out heating furnace 110 by means of the handle H that a level is connected to described stationary fixture 130.Maybe will be when described stationary fixture 130 separate in the time will being fixed to described polymer insulator 132 on the described stationary fixture 130 with described polymer insulator 132, the user spurs handle H, thereby stationary fixture 130 is pulled out from described heating furnace 110.On the other hand, in the time will detecting described polymer insulator 132, the user pushes described handle H in the heating furnace 110.Like this, polymer insulator 132 is easy to be fixed on the described stationary fixture 130 or with it and separates.
Described heating unit 120 comprises: one is arranged on the burner 122 below the chamber 112 of described heating furnace 110, and it is used for combustion fluid liquefied oil gas (LPG) to provide identical heating source as imaginary fire; Nozzle 124, it is arranged on and is used to launch flame on the burner 122; And a lifting handle 126 that is installed in the side of described burner 122, its described burner 122 that is used to raise.
Particularly, the middle part of described burner 122 and rear portion are equipped with the sensor (not shown) that is used for the flame detection temperature.The flame temperature that is detected outputs in described main control unit (not shown) and the described data storage/output unit 170.
Connect the temperature of described flame control unit 160 with the burner 122 of controlling described heating unit 120.Particularly, described control module 160 will be to detected flame temperature averages by being installed in the sensor in the described burner 122, and control this average flame temperature and equal a predetermined temperature, this predetermined temperature is according to the simulated fire situation and input in advance.
It is hydraulic cylinders that include a piston rod 142 that described tensile force provides unit 140, and the front end of piston rod 142 is fixed to one of described stationary fixture 130.Described piston rod 142 carries out linear reciprocal movement in hydraulic cylinder.Described moving member 118 is fixed to the middle part of piston rod 142.Described dynamometer L is installed in the rear end of described piston rod 142, is used for the dependent variable of polymer insulator is converted into resistance to measure tensile force load.In addition, be provided with the pressure of this tensile force control module (not shown), the described polymer insulator 132 of this strain of pressure with the control hydraulic cylinder.
Described tensile force measuring unit 150 is installed in the middle part of described piston rod 142.Described tensile force measuring unit 150 is electrically connected to described dynamometer L, is used for outputing to described data storage/output unit 170 by the detected tensile force load value of described dynamometer L.
Described main control unit (not shown) control flame temperature equates with the predetermined temperature of described heating unit 120, and a measured value of definite tensile force, this measured value acts on described polymer insulator 132 by the tensile force that tensile force is provided unit 140 and obtains.
Described data storage/output unit 170 comprises: a computing machine 172, and it is used to handle and store the temperature of well heater 120 and the data value of being measured by tensile force measuring unit 150; One output unit 174, for example a printer is used for hard copy from the last output valve of computing machine 172 outputs; One display screen 176, it is used for exporting in real time the temperature of described burner 122 and tests trial value and the output valve that is obtained by the tensile force of described polymer insulator 132; And a control member 178, it is used to allow an operator manually to import test condition.
As shown in Figure 4, display screen 176 shows the temperature of burners 122 and in real time according to the trial value and the output valve that obtain from the tensile force test after the algorithm process.Particularly, the predetermined temperature of presetting by the operator and be presented on the described display screen 176 by the form of the flame temperature that is installed in three sensor in the described burner 122 with numeral and chart.Equally, provide the default described predetermined tensile force in unit 140, stretching time, tensile force load for described tensile force and the model of the crushing load that provided by described tensile force control module and described polymer insulator 132 is also exported and is presented on the described display screen 176.In addition, the stress-strain diagram that is stretched when rupturing then at polymer insulator 132 is also shown on the described display screen 176.
Being necessary provides unit 140 and described tensile force measuring unit 150 conllinear to arrange described stationary fixture 130, described tensile force.
Now, description had operation according to the forest fire simulated test equipment that is used for polymer insulator of said structure of the present invention.
For refractability and the tensile force load of measuring described polymer insulator 132, shown in Fig. 1 to 3, an operator uses the described control member 178 input predetermined temperatures of described data storage/output unit 170, predetermined tensile force, stretching time and tensile force load value.
Subsequently, operator's pulling is connected to and is arranged at this described handle H to the described stationary fixture 130 between the loading stage 119, makes described stationary fixture 130 slide along described loading stage 119.After described stationary fixture 130 outside motions are finished, the operator is fixed to described polymer insulator 132 on the described stationary fixture 130, then when the internal temperature of heating furnace 110 reaches predetermined temperature, the operator promotes described handle H, thereby described polymer insulator 132 is written in the chamber 112 of described heating furnace 110.
After described polymer insulator 132 was loaded in the chamber 112 of described heating furnace 110, being used to control described tensile force provided the described tensile force control module of unit 140 to apply described predetermined tensile force according to the load that is set in described dynamometer L.The described predetermined stretching time of described predetermined tensile force continuous action.During described predetermined load keeps, the burner 122 that is arranged on the described heating unit 120 under the described polymer insulator 132 is lighted, and the flame temperature of described burner makes flame temperature equate with predetermined temperature by described flame control unit 160 controls.Equally, the operator utilizes described lifting handle 126 vertical mobile burners 122.Particularly, will be average by the flame temperature that the sensor that is installed in the described burner 122 is measured in real time, and the control average flame temperature equates with described predetermined temperature.
Subsequently, increasing by described tensile force provides the piston rod 142 of unit 140 to act on tensile force on the described polymer insulator 132, and the tensile force that increases is controlled by described tensile force control module.Go at predetermined stretching time, and tensile force is when reaching predetermined tensile force, tensile force is measured by the tensile force measuring unit 150 that is connected to dynamometer L.The end value of tensile force test and the measured value of flame temperature are relatively also handled by described main control unit, and output is on the display screen 176 of described data storage/output unit 170.
Particularly, the end value of tensile force test and the measured value of flame temperature are stored in described data storage/output unit 170 in real time went over up to the schedule time, and alignment compares and calculates.End value outputs to this output unit 174.
Storing value is with the form output of test data sheet, and this test data sheet is exported under user's request.
As mentioned above, carry out refractability and the tensile force load of forest fire simulated test to measure and to test described polymer insulator 132 simultaneously.And, carry out the q﹠r test simultaneously.Therefore, the load that estimates the performance of described polymer insulator 132 and when forest fire takes place, produce, thus avoid serious accident.Thereby, avoid the loss of resource, life and property effectively.
Can clearly learn from the above description, when temperature that is applied when forest fire is taken place and tensile force were provided to described polymer insulator, the refractability and the tensile force load of polymer insulator can be measured and test to the forest fire simulated test equipment that is used for polymer insulator.Therefore, the load that can estimate the performance of described polymer insulator 132 and when forest fire takes place, produce, and replace or repair described polymer insulator.Thereby the present invention has the effect of avoiding having an accident and avoiding resource, life and property loss.
Although for the purpose of example discloses the preferred embodiments of the present invention, those of ordinary skill in the art will understand, do not deviate from as disclosed scope and spirit of the present invention in the accessory claim can make various modifications, replenish and replace.

Claims (11)

1. forest fire simulated test equipment that is used for polymer insulator comprises:
One heating unit is set in place the below of the polymer insulator in a heating furnace, is used to provide heating source;
A tensile force provides the unit, is arranged to be located along the same line with described polymer insulator, provides a tensile force for described polymer insulator when it is used for being fixed to stationary fixture in the opposite end of described polymer insulator;
A tensile force measuring unit, it is used to measure the tensile force that puts on described polymer insulator, described tensile force measuring unit comprises a dynamometer, the dependent variable of the polymer insulator that this dynamometer is used for being provided the unit to produce by described tensile force is converted into resistance with sensing lead, described dynamometer is arranged on described tensile force and provides on the identical straight line in unit, and is positioned at the back that this tensile force provides the unit; And
One data storage/output unit is used to store and export the temperature of described heating unit and the data value of being measured by described tensile force measuring unit.
2. device as claimed in claim 1, wherein, described heating unit comprises:
One burner, it is provided with a plurality of nozzles, is used for by described nozzle emission flame; And
One promotes handle, is used for described burner is risen to a predetermined altitude.
3. device as claimed in claim 2, it further comprises:
A plurality of sensors are installed in the pre-position of described burner, are used to detect the temperature of the flame that is produced by this burner; And
A flame control unit, be used for by described sensor to flame temperature compare with a predetermined temperature, with control flame temperature equal described predetermined temperature.
4. device as claimed in claim 3, wherein, the number of described sensor is at least three.
5. device as claimed in claim 1, it further comprises:
One tensile force control module, being used for being input to described tensile force in advance based on one provides the predetermined tensile force control of unit to be applied to the tensile force of described polymer insulator.
6. device as claimed in claim 5, wherein, it is a hydraulic cylinder that described tensile force provides the unit.
7. device as claimed in claim 6, wherein, described tensile force control module comes control stretching power by the pressure of controlling described hydraulic cylinder.
8. device as claimed in claim 1, it further comprises:
One main control unit is used to control the temperature of described heating unit and the tensile force that described tensile force provides the unit, and the measured value of tensile force is sent to an output unit.
9. device as claimed in claim 8, wherein, described data storage/output unit comprises:
A computing machine is used to handle and store the temperature of the heating unit of being controlled by described main control unit and the tensile force output valve that described tensile force provides the unit; And
An output unit, it is used for from computing machine with the final output valve of hard copy output.
10. device as claimed in claim 9, wherein, described data storage/output unit further comprises:
A control member, it is used to allow the artificial input operation condition of an operator.
11. device as claimed in claim 9, described data storage/output unit further comprises:
A display screen, it is used for showing in real time true temperature and the predetermined temperature and the curve map thereof of described burner, and shows in real time according to the test findings after the algorithm process, that obtain from the test of the tensile force of described polymer insulator and the figure of broken curve as a result of output valve and described polymer insulator.
CNB2005100908084A 2004-08-16 2005-08-16 Forest fire simulated test equipment for polymer insulator Expired - Fee Related CN100443878C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020040064396A KR100666508B1 (en) 2004-08-16 2004-08-16 Test Equipment for Forest Fire Simulation of Polymer Insulators
KR1020040064396 2004-08-16

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CN1737529A true CN1737529A (en) 2006-02-22
CN100443878C CN100443878C (en) 2008-12-17

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KR100941442B1 (en) * 2007-06-27 2010-02-11 한국건설기술연구원 Equipment for Testing a Spalling Failure of a Concrete under the Condition Applying a Load
CN102289846B (en) * 2011-09-08 2014-06-11 北京林业大学 Tree simulation method based on generalized parametric modeling
CN106053542A (en) * 2016-07-21 2016-10-26 国网山西省电力公司电力科学研究院 Accuracy detection device and method for power line dirt online monitor
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CN105723438A (en) * 2015-09-06 2016-06-29 南京森林警察学院 Forest fire intensity simulator and application method thereof
WO2017035830A1 (en) * 2015-09-06 2017-03-09 南京森林警察学院 Forest fire intensity simulator and method for use thereof
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CN105723438B (en) * 2015-09-06 2018-06-12 南京森林警察学院 A kind of Forest Fire strength simulation device and its application method

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JP2006059787A (en) 2006-03-02
CN100443878C (en) 2008-12-17
JP4057578B2 (en) 2008-03-05
KR20060015981A (en) 2006-02-21

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