CN107657878B - A kind of electrical fire is multiple and inhibits the demo platform of electrical ignition source - Google Patents
A kind of electrical fire is multiple and inhibits the demo platform of electrical ignition source Download PDFInfo
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- CN107657878B CN107657878B CN201711134367.2A CN201711134367A CN107657878B CN 107657878 B CN107657878 B CN 107657878B CN 201711134367 A CN201711134367 A CN 201711134367A CN 107657878 B CN107657878 B CN 107657878B
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- G—PHYSICS
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- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/18—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism
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Abstract
The invention discloses a kind of multiple demo platforms with the electrical ignition source of inhibition of electrical fire, including the first plant-grid connection area, the second demonstration area, third load on viewing area；There are total three categories (nine groups) to can produce the electric fault of ignition source and the experiment module of ignition source igniting flammable items initiation fire in the second demonstration area, which can show that short circuit, electric leakage, all fronts/local line overload, poor contact fever/electric discharge, alternate high impedance discharges, charing path is discharged, conducting wire aggregation is generated heat, and how electric fault generates ignition source and igniting flammable items initiation fire；Existing circuit protector to these electric faults generate ignition source there is no prevention and control ability why, and the electrical ignition source newly developed disappear control device why can effectively prevention and control overall process.
Description
Technical field
The invention belongs to electrical fire studying technological domain, especially a kind of electrical fire is multiple and inhibits electrical ignition source
Demo platform.
Background technique
As social progress develops, China's per capita household electricity consumption is higher and higher, and the layout of electric wiring is also increasingly sophisticated.Electricity
It can be while bringing people's convenience, the electrical fire accident caused is also growing day by day.In recent years according to " China fire yearbook "
Statistics fire shows that electrical fire incidence and caused loss occupy first of all kinds of cause of fire, and number ratio has occurred
For example mostly 30% or so, caused loss accounts for 40% or so of whole fire damages.However, China is at this stage to electrical fire
The analysis and the still not comprehensive enough system of research of ignition source, especially carry out systematic summary to electrical fire ignition source and divide
Class.Particularly, domestic to there is not yet to the demonstration for capableing of system and the device for disclosing electrical fire ignition source, and a kind of electrical fire
Calamity is multiple and inhibits the demo platform of electrical ignition source that can effectively fill up this blank.The device can be such that fire brigade and fire adjusts
Personnel are distinctly understood that all kinds of electrical fire ignition source formation mechenisms and indication character；Common public understanding can also be made
To the risk of all kinds of electrical fires；Simultaneously technical basis can also be provided for preventing electric fire ignition source.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of multiple demonstrations with the electrical ignition source of inhibition of electrical fire
Platform, be actual display short circuit, electric leakage, alternate high impedance electric discharge, charing path electric discharge, poor contact fever/electric discharge, all fronts/
Part overload, accumulation conductor overheating electric fault generate the overall process of the inflammable combustible combustion of ignition source.By demonstration, electricity can be made
Gas fire Control Technology personnel, fire investigation personnel, ordinary populace recognize the process that all kinds of electrical fires occur, reason and
Fire material evidence appraiser differentiates the indication character for identifying that all kinds of electric faults generate.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
A kind of electrical fire is multiple and inhibits the demo platform of electrical ignition source, comprising:
A) the component of device
Entire demo platform is respectively the first plant-grid connection area, the second demonstration area, third load on and shows from left to right
Show area；It arranges that power supply line, fuse, electrical fire ignition source disappear on the left of the first plant-grid connection area and controls device, band earth leakage protective
Short-circuit protector and short-circuit protector；Centre be respectively disposed with electrical fire ignition source disappear control device, band earth leakage protective short circuit protect
Protect the switch of device and short-circuit protector；The switch of each demonstration module is arranged on right side；
It is sequentially arranged each demonstration module in the second demonstration area, the demonstration module is drilled including the first demonstration module, second
Show module, third demonstration module, the 4th demonstration module, the 5th demonstration module, the 6th demonstration module and the 7th demonstration module；
First demonstration module is for demonstrating short circuit and drain conditions, structure are as follows: be arranged in parallel on phantom frame
Zero curve, firewire and ground wire are equipped with the stepper motor for vertically pushing firewire to move up and down；
Second demonstration module is for demonstrating poor contact electric discharge and poor contact heat condition, structure are as follows: in mould
Side is provided with copper rod on quasi- frame, and the other side opposite with copper rod is provided with carbon-point or conductive metal stick；The copper rod and carbon
Stick or conductive metal stick are connected in same conducting wire branch, and are provided with mobile mechanism on carbon-point or conductive metal stick, so that carbon
It the tip of stick or conductive metal stick can be close to or far away from the tip of copper rod；
The third demonstration module is for demonstrating alternate high resistant situation, structure are as follows: fire is arranged in parallel on phantom frame
Line and zero curve；Certain distance is kept between firewire and zero curve；
4th demonstration module is for demonstrating local overload situations, structure are as follows: two are arranged in parallel on phantom frame
The conducting wire of item difference line footpath, a conducting wire are thin wire, and a conducting wire is heavy gauge wire；
5th demonstration module is for demonstrating conducting wire aggregation situation, structure are as follows: conducting wire is set on phantom frame, and
Conducting wire is flocked together with canoe；
6th demonstration module is for demonstrating charing path discharge scenario, structure are as follows: be provided on phantom frame
The conducting wire that two part charings are completed；
7th demonstration module is for demonstrating two-phase overload situations, structure are as follows: two are arranged in parallel on phantom frame
The identical thin wire of line footpath, respectively zero curve and firewire are observed when overloading in circuit using thermal infrared imaging instrument
The temperature rise situation of the thin wire of zero curve and firewire；
Touch display screen and key mould are arranged in arrangement load and socket, middle part above third load on and viewing area
Block, arranged beneath working station indicator, cable interface module and touch display screen switch；
B) the internal circuit of device
220V AC power source is sequentially connected by power supply line, fuse, master switch, and the master switch is separately connected three branch
Road, three branches, which are respectively as follows: electrical fire ignition source and disappear, controls device and a concatenated branch of switch, band earth leakage protective short circuit are protected
Protect device and the concatenated branch of a switch, short-circuit protector and a concatenated branch of switch；Three branches independently connect
Several demonstration modules in the second demonstration area, i.e., connect with the input terminal of demonstration module；
Each demonstration module is connected with a switch, and all demonstration modules are commonly connected to load, and the load also connects
It is connected to socket；
The input lead of each demonstration module is both provided with a current transformer, and all current transformers are commonly connected to
Signal conditioning module, the signal conditioning module are connected to MCU microprocessor module；The MCU microprocessor module passes through electricity
Source module power supply, and MCU microprocessor module is also respectively connected with Network Interface Module, key module, driver module and step
Into motor control module；The step motor control module is connected to stepper motor, and the driver module is connected to touch
Display screen.
Further, each demonstration module is connected with the indicator light for showing that this module is switched on or off.
Further, the 4th demonstration module, the 5th demonstration module, the 6th demonstration module and the 7th demonstration module share
One phantom frame.
Further, the socket is for connecting various consuming devices or fictitious load.
Further, the MCU microprocessor module is also connected with memory module.
Further, the touch display screen can directly carry out waveform show, the operational order of storage.
Compared with prior art, the beneficial effects of the present invention are: 1) can demonstrate short circuit/electric leakage ignition source demonstration module,
Local overload/conducting wire assembles fever/charing electric discharge/two-phase overload demonstration module, poor contact are generated heat/demonstration module that discharges, phase
Between high impedance demonstration module, generating short circuit, electric leakage, all fronts/local line overload, poor contact fever/electric discharge, alternate respectively
When high impedance electric discharge, the electric discharge electric discharge of charing path, accumulation conductor overheating electric fault, generated ignition source and igniting flammable items
Cause the real phenomena of fire.2) existing circuit protector can be demonstrated to short circuit, electric leakage, all fronts/local line overload, contact
It is generated when bad fever/electric discharge, the electric discharge of alternate high impedance, the electric discharge electric discharge of charing path, accumulation conductor overheating electric fault
Ignition source does not have prevention and control ability.3) can demonstrate the electrical ignition source newly developed disappear control device to short circuit, electric leakage, whole circuit mistake
It carries, poor contact electric discharge, the electric discharge of alternate high impedance, carbonize the ability that path electric discharge electric discharge can have stronger prevention and control.4) it can show
Show, record, save and transmit short circuit, electric leakage, poor contact electric discharge, the electric discharge of alternate high impedance, charing path electric discharge discharge fault
Waveform, wave number and time of origin, the technical data such as period.To determine that electrical fire provides objective science foundation, for electrical
After fire occurs, theoretical foundation and technical support are provided to the lookup of material evidence, extraction and identification, judgement.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is the 4th demonstration module structural schematic diagram in the present invention.
Fig. 3 is the 5th demonstration module structural schematic diagram in the present invention.
Fig. 4 is the 6th demonstration module structural schematic diagram in the present invention.
Fig. 5 is the 7th demonstration module structural schematic diagram in the present invention.
Fig. 6 is that electric elements connect circuit diagram in the present invention.
In Fig. 1,1-power supply line；2-fuses；3-electrical fire ignition sources, which disappear, controls device；4-band earth leakage protective short circuits
Protector；5-short-circuit protectors；6-switches；7-the first demonstration module；9-the second demonstration module；10-thirds demonstrate mould
Block；11-indicator lights；12-incandescent lamps；13-sockets；14-touch display screens；15-touch display screens switch；16-keys
Module；17-cable interface modules；18-working station indicators；19-stepper motors；20-zero curves；21-firewires；22—
Ground wire；23-copper rods；24-carbon-points (or conductive metal stick)；26-adjusting knobs；28-the four demonstration module；29-the five drills
Show module；30-the six demonstration module；31-the seven demonstration module；32- master switch；33- current transformer；34- power module；
35- memory module；36-MCU microprocessor module；37- signal conditioning module；38- step motor control module；39- display is driven
Dynamic model block.
Specific embodiment
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
The present invention, which is total to three categories (nine groups), can produce the electric fault and ignition source igniting flammable items initiation fire of ignition source
Experiment module of calamity, and short circuit, overload, electric leakage etc. and are able to achieve before guaranteeing electric wiring normal use breaker protectors
It puts, all relevant apparatus, utensil and the process for effectively controlling the generation of electrical fire ignition source are all integrated together, and are set
It counts, be installed on the experimental demonstration platform.
The experimental demonstration platform can show short circuit, electric leakage, all fronts/local line overload, poor contact fever/electric discharge,
Alternate high impedance electric discharge, the electric discharge of charing path, accumulation conductor overheating electric fault how to generate ignition source and igniting flammable items draw
Ignition calamity；Existing circuit protector generates why ignition source does not have prevention and control ability to these electric faults, and newly develop
Electrical ignition source disappear control device why can effective prevention and control overall process.
The experiment porch can disclose the multiple reason and principle of electrical fire deeply, be that can produce electrical fire in circuit
The electric fault type of calamity ignition source is more, and till now circuit protector there is no one kind that can inhibit electrical with prevention and control
The generation of fire fire origin, existing protector actual purpose is that circuit is protected not influenced and collapsed by electric fault in circuit
Or electric fault is more serious, guarantees other normal operation circuits outside faulty circuit as far as possible.Newly developed electrical fire draws
Fire source disappear control device to short circuit, electric leakage, poor contact electric discharge, alternate high impedance electric discharge, charing path electric discharge electric fault can
It realizes under the premise of guaranteeing electric wiring normal use, effectively controls the generation of electrical fire ignition source.
The touch display screen that the experiment porch is equipped with can show and store waveform, wave number and the hair when electric fault occurs
Storing data can also be imported on computer and be handled by data line by raw period, time.Most of operation passes through touching
It touches screen control to complete, there is very high safety assurance to operator.Such as the device is grasped in demonstration electric leakage and short circuit experiment
Make personnel only to need to operate and control by touch screen, considerably increases safety, reliability and the intelligence of the device.
Meanwhile the device comes with socket, can connect various consuming devices or fictitious load.The device in addition to can demonstrate 9 kinds it
Outside, additionally it is possible to demonstrate common short-circuit protector respectively, band earth leakage protective short-circuit protector and electrical fire ignition source, which disappear, controls dress
Set the excision situation to all kinds of electrical fire ignition source failures.It is demonstrated experimentally that electrical fire ignition source disappears and controls device and can cut off
Most electrical fire ignition sources.
The main implementation steps of the device: being first turned on touch screen, and the stepper motor for controlling short trouble at this time is resetted；
The power supply line of device is connected in 220V domestic power supply after the completion of reset, in the case where guaranteeing all switches in disconnection,
Master switch 32 is opened, the short-circuit protector tested and the electrical fire ignition source failure classes tested are selected
Type, connection load are opened corresponding switch and are tested, and by selecting corresponding fault type in touch screen, can show preservation
Fault current waveform.
Specific structure of the invention is as follows, comprising:
A) the component of device
Entire demo platform is respectively the first plant-grid connection area, the second demonstration area, third load on and shows from left to right
Show area；It arranges that power supply line 1, fuse 2, electrical fire ignition source disappear on the left of the first plant-grid connection area and controls device 3, band electric leakage guarantor
Protect short-circuit protector 4 and short-circuit protector 5；Centre be respectively disposed with electrical fire ignition source disappear control device 3, band earth leakage protective it is short
The switch 6 of road protector 4 and short-circuit protector 5；The switch 6 of each demonstration module is arranged on right side；
It is sequentially arranged each demonstration module in the second demonstration area, the demonstration module is drilled including the first demonstration module 7, second
Show module 9, third demonstration module 10, the 4th demonstration module 28, the 5th demonstration module 29, the 6th demonstration module 30 and the 7th demonstration
Module 31；
First demonstration module 7 is for demonstrating short circuit and drain conditions, structure are as follows: be arranged in parallel on phantom frame
Zero curve 20, firewire 21 and ground wire 22 are equipped with the stepper motor 19 for vertically pushing firewire 21 to move up and down；
Short-circuit lecture experiment: short circuit/leak current fault modular circuit is connected, clicks short trouble in touch display screen 14
Lecture experiment clicks " preservation " after confirming safety, and stepper motor 19 drags firewire 21 and moves to zero curve 20 at this time, generates short circuit.
After short trouble occurs, dragging firewire 21 resets stepper motor 19 automatically, is allowed to separate with zero curve 20, it is real to complete first short circuit
It tests, touch display screen 14 has saved fault current waveform at this time.
Electric leakage lecture experiment: short circuit/leak current fault modular circuit is connected, clicks leak current fault in touch display screen 14
Lecture experiment clicks " preservation " after confirming safety, and stepper motor 19 drags firewire 21 and moves to ground wire 22 at this time, generates electric leakage.
After leak current fault occurs, dragging firewire resets stepper motor 19 automatically, is allowed to separate with ground wire 22, completes a leakage experiment,
Touch display screen 14 has saved fault current waveform at this time.
Second demonstration module 9 is for demonstrating poor contact electric discharge and poor contact heat condition, structure are as follows: in mould
Side is provided with copper rod 23 on quasi- frame, and the other side opposite with copper rod 23 is provided with carbon-point 24 or conductive metal stick；The copper
Stick 23 and carbon-point 24 or conductive metal stick are connected in same conducting wire branch, and are provided with movement on carbon-point 24 or conductive metal stick
Mechanism enables the tip of carbon-point 24 or conductive metal stick close to or far away from the tip of copper rod 23；
Poor contact electric discharge lecture experiment: connecting poor contact fever/discharge fault modular circuit, by aobvious in touch
Poor contact lecture experiment is clicked in display screen 14, can be reserved for fault waveform when being tested.It is adjusted by rotation of adjustment knob 26
Carbon-point 24 or the distance between conductive metal stick and copper rod 23, are allowed to generate electrical discharge arc.The energy of electrical discharge arc is enough to ignite
Absorbent cotton can be put into carbon-point 24 or conductive metal stick and 23 contact point top of copper rod in order to visually show by combustible,
The electric arc of generation can be ignited.
Poor contact fever lecture experiment: connecting poor contact fever/discharge fault modular circuit, by aobvious in touch
Poor contact lecture experiment is clicked in display screen 14, can be reserved for fault waveform when being tested.It is adjusted by rotation of adjustment knob 26
Carbon-point 24 or the distance between conductive metal stick and copper rod 23 are allowed to not generate electric arc but carbon-point 24 are since contact point resistance is larger
Can generate heat rubescent state in heating.The high temperature of generation is enough igniting flammable items, can be by degreasing in order to visually show
Cotton is put into carbon-point 24 or conductive metal stick and 23 contact point top of copper rod, and the electric arc of generation can be ignited.
The third demonstration module 10 is for demonstrating alternate high resistant situation, structure are as follows: be arranged in parallel on phantom frame
Firewire 21 and zero curve 20；Certain distance is kept between firewire 21 and zero curve 20；
Alternate high impedance lecture experiment: the absorbent cotton for speckling with salting liquid is first overlapped on to the zero curve 20 of alternate high impedance module
Between firewire 21.Alternate high impedance demonstration module circuit is connected, by clicking alternate high impedance in touch display screen 14
Lecture experiment can be reserved for fault waveform when being tested.Absorbent cotton generates intermittent electrical discharge arc, generated electric arc at this time
Energy be enough igniting flammable items.
4th demonstration module 28 is for demonstrating local overload situations, structure are as follows: is arranged in parallel on phantom frame
The conducting wire of two different line footpaths, a conducting wire are thin wire, and a conducting wire is heavy gauge wire；
Part overload lecture experiment: four ends of local overload module are inserted into local overload/conducting wire and assemble fever/charcoal
Change in electric discharge/two-phase overload demonstration module in corresponding four ports, the local overload of connection/conducting wire aggregation fever/charing electric discharge/
Two-phase overload demonstration module circuit, connect load, can be used thermal infrared imaging instrument clearly observe thin wire temperature rise it is bright
It is aobvious to be higher than heavy gauge wire.
5th demonstration module 29 is for demonstrating conducting wire aggregation situation, structure are as follows: conducting wire is set on phantom frame,
And conducting wire is flocked together with canoe；
Conducting wire assembles lecture experiment: four ends of conducting wire concentrating module being inserted into local overload/conducting wire and assemble fever/charcoal
Change in electric discharge/two-phase overload demonstration module in corresponding four ports, the local overload of connection/conducting wire aggregation fever/charing electric discharge/
Two-phase overloads demonstration module circuit, connects load, the temperature that thermal infrared imaging instrument clearly observes conducting wire habitat can be used
Rise obvious, insulating layer starts raw cigarette softening, to short trouble can occur after a certain period of time.
6th demonstration module 30 is for demonstrating charing path discharge scenario, structure are as follows: be arranged on phantom frame
The conducting wire for thering are two part charings to complete；
Carbonize path electric discharge lecture experiment: by completed charing path plate (having formed graphite charcoal in breakage) four
End is inserted into local overload/conducting wire aggregation fever/charing electric discharge/two-phase overload demonstration module in corresponding four ports,
It connects local overload/conducting wire aggregation fever/charing electric discharge/two-phase and overloads demonstration module circuit, connect load, sent out at graphite charcoal
Raw strong electric arc, and it is accompanied by the huge sound, the high-temperature electric arc of generation is enough igniting flammable items.
7th demonstration module 31 is for demonstrating two-phase overload situations, structure are as follows: is arranged in parallel on phantom frame
The identical thin wire of two lines diameter, respectively zero curve 20 and firewire 21 use thermal infrared imaging instrument when overloading in circuit
Observe the temperature rise situation of the thin wire of zero curve 20 and firewire 21；
Two-phase overloads lecture experiment: two-phase overload lecture experiment is mainly used for simulating all fronts overload situations, i.e. 20 He of zero curve
Firewire 21 overloads.By four ends of two-phase overload module be inserted into local overload/conducting wire aggregation fever/charing electric discharge/
Two-phase is overloaded in demonstration module in corresponding four ports, is connected local overload/conducting wire and is assembled fever/charing electric discharge/two-phase mistake
Demonstration module circuit is carried, load is connected, the thin wire that thermal infrared imaging instrument clearly observes zero curve and firewire can be used
Temperature rise is obvious, or even fever is rubescent.
Touch display screen 14 and key are arranged in arrangement load and socket 13, middle part above third load on and viewing area
Module 16, arranged beneath working station indicator 18, cable interface module 17 and touch display screen switch 15；
B) the internal circuit of device
220V AC power source is sequentially connected by power supply line 1, fuse 2, master switch 32, and the master switch 32 is separately connected
Three branches, three branches be respectively as follows: electrical fire ignition source disappear control device 3 and a concatenated branch of switch 6, band electric leakage is protected
Protect short-circuit protector 4 and a concatenated branch of switch 6, short-circuit protector 5 and a concatenated branch of switch 6；Three branches
Independently several demonstration modules in the second demonstration of connection area, i.e., connect with the input terminal of demonstration module；
Each demonstration module is connected with a switch 6, and all demonstration modules are commonly connected to load, and the load also connects
It is connected to socket 13；
The input lead of each demonstration module is both provided with a current transformer 33, and all current transformers 33 connect jointly
It is connected to signal conditioning module 37, the signal conditioning module 37 is connected to MCU microprocessor module 36；The MCU microprocessor
Module 36 is powered by power module 34, and MCU microprocessor module 36 is also respectively connected with cable interface module 17, key module
16, driver module 39 and step motor control module 38；The step motor control module 38 is connected to stepper motor 19,
The driver module 39 is connected to touch display screen 14.
Each demonstration module is connected with the indicator light 11 for showing that this module is switched on or off.4th demonstration module 28,
5th demonstration module 29, the 6th demonstration module 30 and the 7th demonstration module 31 can share a phantom frame, when in use, need
It demonstrates which module, will directly the module demonstrated be needed to be mounted on module frame, this have the advantage that can be with
Save the demonstration area of entire demo platform.MCU microprocessor module 36 is also connected with memory module 35.
Third load on and viewing area further include: socket 13, touch display screen 14, key module 16, cable interface mould
Block 17, working station indicator 18.Socket 13 is that can connect various consuming devices or fictitious load.；Touch display screen 14 was both
It can show present current waveform, instruction can also be sent, function required for selecting；Key module 16 can send instruction,
Function required for selecting；Cable interface module 17 can be connected to computer by cable, store and show wave in computer terminal
Shape；Working station indicator 18 can indicate current working status.
Claims (6)
1. a kind of electrical fire is multiple and inhibits the demo platform of electrical ignition source characterized by comprising
A) the component of device
Entire demo platform is respectively the first plant-grid connection area, the second demonstration area, third load on and viewing area from left to right；
It arranges that power supply line (1), fuse (2), electrical fire ignition source disappear on the left of the first plant-grid connection area and controls device (3), band electric leakage
Protect short-circuit protector (4) and short-circuit protector (5)；Centre be respectively disposed with electrical fire ignition source disappear control device (3), band leakage
The switch (6) of electric protection short-circuit protector (4) and short-circuit protector (5)；The switch (6) of each demonstration module is arranged on right side；
It is sequentially arranged each demonstration module in the second demonstration area, the demonstration module includes the first demonstration module (7), the second demonstration
Module (9), third demonstration module (10), the 4th demonstration module (28), the 5th demonstration module (29), the 6th demonstration module (30) and
7th demonstration module (31)；
First demonstration module (7) is for demonstrating short circuit and drain conditions, structure are as follows: zero is arranged in parallel on phantom frame
Line (20), firewire (21) and ground wire (22) are equipped with the stepper motor (19) for vertically firewire (21) being pushed to move up and down；
Second demonstration module (9) is for demonstrating poor contact electric discharge and poor contact heat condition, structure are as follows: is simulating
Side is provided with copper rod (23) on frame, and the opposite other side is provided with carbon-point (24) or conductive metal stick with copper rod (23)；Institute
It states copper rod (23) and carbon-point (24) or conductive metal stick is connected in same conducting wire branch, and on carbon-point (24) or conductive metal stick
It is provided with mobile mechanism, enables the tip of carbon-point (24) or conductive metal stick close to or far away from the tip of copper rod (23)；
The third demonstration module (10) is for demonstrating alternate high resistant situation, structure are as follows: fire is arranged in parallel on phantom frame
Line (21) and zero curve (20)；Certain distance is kept between firewire (21) and zero curve (20)；
4th demonstration module (28) is for demonstrating local overload situation, structure are as follows: is arranged in parallel on phantom frame
The conducting wire of two different line footpaths, a conducting wire are thin wire, and a conducting wire is heavy gauge wire；
5th demonstration module (29) is for demonstrating conducting wire aggregation situation, structure are as follows: conducting wire is set on phantom frame, and
Conducting wire is flocked together with canoe；
6th demonstration module (30) is for demonstrating charing path situation, structure are as follows: be provided with two on phantom frame
The conducting wire that part charing is completed；
7th demonstration module (31) is for demonstrating two-phase overload situation, structure are as follows: is arranged in parallel on phantom frame
The identical thin wire of two lines diameter, respectively zero curve (20) and firewire (21), when in circuit occur overcurrent when, using thermal infrared at
As instrument observes the temperature rise situation of the thin wire of zero curve (20) and firewire (21)；
Touch display screen (14) and key are arranged in arrangement load and socket (13), middle part above third load on and viewing area
Module (16), arranged beneath working station indicator (18), cable interface module (17) and touch display screen switch (15)；
B) the internal circuit 220V AC power source of device is sequentially connected by power supply line (1), fuse (2), master switch (32), institute
It states master switch (32) and is separately connected three branches, three branches, which are respectively as follows: electrical fire ignition source and disappear, to be controlled device (3) and open with one
Close (6) concatenated branch, band earth leakage protective short-circuit protector (4) and the concatenated branch of switch (6), a short-circuit protector (5)
With switch (6) concatenated branch；Three branches independently connect several demonstration modules in the second demonstration area, i.e., with demonstration
The input terminal of module connects；
Each demonstration module is connected with a switch (6), and all demonstration modules are commonly connected to load, and the load is also connected with
There are socket (13)；
The input lead of each demonstration module is both provided with a current transformer (33), and all current transformers (33) connect jointly
It is connected to signal conditioning module (37), the signal conditioning module (37) is connected to MCU microprocessor module (36)；The MCU is micro-
Processor module (36) is powered by power module (34), and MCU microprocessor module (36) is also respectively connected with cable interface mould
Block (17), key module (16), driver module (39) and step motor control module (38)；The step motor control mould
Block (38) is connected to stepper motor (19), and the driver module (39) is connected to touch display screen (14).
2. a kind of electrical fire as described in claim 1 is multiple and inhibits the demo platform of electrical ignition source, which is characterized in that
Each demonstration module is connected with the indicator light (11) for showing that this module is switched on or off.
3. a kind of electrical fire as described in claim 1 is multiple and inhibits the demo platform of electrical ignition source, which is characterized in that
4th demonstration module (28), the 5th demonstration module (29), the 6th demonstration module (30) and the 7th demonstration module (31) share
One phantom frame.
4. a kind of electrical fire as described in claim 1 is multiple and inhibits the demo platform of electrical ignition source, which is characterized in that
The socket (13) is for connecting various consuming devices or fictitious load.
5. a kind of electrical fire as described in claim 1 is multiple and inhibits the demo platform of electrical ignition source, which is characterized in that
The MCU microprocessor module (36) is also connected with memory module (35).
6. a kind of electrical fire as described in claim 1 is multiple and inhibits the demo platform of electrical ignition source, which is characterized in that
The touch display screen (14) can directly carry out waveform show, the operational order of storage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN109444610B (en) * | 2018-12-21 | 2023-12-19 | 中国人民武装警察部队学院 | Electrical fire fault simulation and trace preparation device |
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| CN111554160A (en) * | 2020-06-09 | 2020-08-18 | 清华大学合肥公共安全研究院 | Electrical fire demonstration box and demonstration method thereof |
| CN112735247A (en) * | 2020-12-31 | 2021-04-30 | 杭州拓深科技有限公司 | Electric fire demonstration system supporting polymorphic switching |
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| CN113625089B (en) * | 2021-08-17 | 2023-11-28 | 中国科学技术大学 | Fault arc ignition experimental device and experimental method thereof |
| CN114234940B (en) * | 2021-12-16 | 2023-08-15 | 国网四川省电力公司电力科学研究院 | Measurement system and method for tree line discharge basic data of high-voltage power line |
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