CN112735247A - Electric fire demonstration system supporting polymorphic switching - Google Patents
Electric fire demonstration system supporting polymorphic switching Download PDFInfo
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- CN112735247A CN112735247A CN202011636195.0A CN202011636195A CN112735247A CN 112735247 A CN112735247 A CN 112735247A CN 202011636195 A CN202011636195 A CN 202011636195A CN 112735247 A CN112735247 A CN 112735247A
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- 239000002184 metal Substances 0.000 claims abstract description 28
- 238000001514 detection method Methods 0.000 claims description 16
- 230000001681 protective effect Effects 0.000 claims description 13
- 230000005611 electricity Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 206010011878 Deafness Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- 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 relates to an electrical fire demonstration system supporting polymorphic switching, which comprises an electrical fire detector matched with a live wire and a zero line, a control switch matched with the electrical fire detector, and a residual current demonstration unit, an overload demonstration unit and a fault arc demonstration unit which are arranged in a matched manner by the control switch, wherein the residual current demonstration unit, the overload demonstration unit and the fault arc demonstration unit are arranged in parallel. The invention adopts an intuitive demonstration method, leads, metal loads and fault generators are respectively connected to a line, alarm linkage control is realized by utilizing a universal change-over switch and an intelligent circuit breaker, the multi-product demonstration function can be switched, the demonstration is intuitive, and the functions of alarm linkage control, multi-electric fire function demonstration switching of products and multi-product demonstration switching of products are supported; the operation is convenient, safe and practical, and the device is suitable for non-professionals to use electricity for propaganda and science popularization.
Description
Technical Field
The present invention relates to educational or demonstration appliances; a tool for teaching or communicating with the blind, deaf or dumb; a model; an planetarium; a globe; a map; the technical field of diagrams, in particular to an electrical fire demonstration system supporting polymorphic switching.
Background
Electrical fires generally refer to fires caused by the faulty release of thermal energy from electrical lines, consumers, appliances and power distribution equipment, such as high temperatures, arcs, sparks and non-faulty release of energy, such as hot surfaces of electrical heating appliances, ignition of bodies or other combustible materials under burning conditions, and also include fires caused by lightning and static electricity.
At present, the electric fire accidents are continuously high and show a trend of increasing year by year.
The reasons for the occurrence of an electrical fire include:
1. equipment lines are aged due to non-overhaul all the year round, and fault arcs are generated;
2. illegal electricity utilization, and private use of electrical equipment;
3. the device circuit has the conditions of electric leakage and the like;
4. an electrical fire caused by an excessively high line temperature.
In the prior art, the detection functions of residual current, overload, fault arc and the like mainly simulate the states of residual current (electric leakage), overload and fault arc by connecting the current generator and the fault arc generator on a detection circuit, so that equipment triggers alarm response, although the simulation state can be utilized to trigger alarm, demonstration observers cannot directly observe the residual current and the states on the circuit during overload, and only can support single-product or multi-product simultaneous triggering demonstration, the demonstration effect is not good, and the purpose of demonstration cannot be achieved.
Disclosure of Invention
The invention solves the problems in the prior art and provides an optimized electrical fire demonstration system supporting polymorphic switching.
The technical scheme adopted by the invention is that the electrical fire demonstration system supporting polymorphic switching comprises an electrical fire detector matched with a live wire and a zero wire, and a control switch matched with the electrical fire detector;
a residual current demonstration unit, an overload demonstration unit and a fault arc demonstration unit are arranged in cooperation with the control switch; the residual current demonstration unit, the overload demonstration unit and the fault arc demonstration unit are arranged in parallel.
Preferably, the residual current demonstration unit comprises a socket matched with a live wire and a zero line, the socket is disconnected with a line matched with the live wire, a metal load is arranged in series between 2 disconnected terminals, and the socket is electrified to simulate a leakage state; and a transparent protective shell is arranged outside the metal load.
Preferably, a residual current transformer is arranged outside the live wire matched with the residual current demonstration unit, and the residual current transformer is matched with the electric fire detector.
Preferably, the overload demonstration unit comprises a socket matched with a live wire and a zero line, the socket is disconnected from a line matched with the live wire, a metal clip is arranged between 2 disconnected terminals, the metal clip clamps a lead, the pressing part of the metal clip is insulated, current is output to the metal clip, and the overload state is simulated by electrifying; transparent protective shells are arranged outside the metal clips and the wires.
Preferably, the fault arc demonstration unit comprises a socket which is matched with a live wire and a zero line, the socket is disconnected with a line matched with the live wire, an arc generator is arranged between 2 disconnected terminals, current is output to the arc generator, the arc generator is adjusted, and a fault arc state is simulated; and a transparent protective shell is arranged outside the arc generator.
Preferably, the control switch is a circuit breaker.
Preferably, the electrical fire detector comprises a single-phase metering electrical host, a communication metering electrical host and a three-phase metering electrical host.
Preferably, the DO output ends of the single-phase metering electric host and the three-phase metering electric host are connected to the control end of the circuit breaker, and the L-line rear stage of the communication metering electric host is connected to the L-line input terminal of the circuit breaker and controls the circuit input of the circuit breaker.
Preferably, the system further comprises 2 universal switches; a universal change-over switch is connected with the rear-stage live wire output of the control switch, and 3 switching terminals are respectively connected with current detection circuits of the single-phase metering electric host, the communication metering electric host and the three-phase metering electric host; the other universal change-over switch is connected with the rear-stage live wire output of the control switch, and the 3-way change-over terminals are respectively connected with the residual current detection circuits of the single-phase metering electric host, the communication metering electric host and the three-phase metering electric host.
Preferably, current transformers are arranged on current detection circuits of the single-phase metering electric host and the three-phase metering electric host; and residual current transformers are arranged on residual current detection circuits of the single-phase metering electric host, the communication metering electric host and the three-phase metering electric host.
The invention provides an optimized electrical fire demonstration system supporting polymorphic switching, which comprises an electrical fire detector matched with a live wire and a zero line, a control switch matched with the electrical fire detector, and a residual current demonstration unit, an overload demonstration unit and a fault arc demonstration unit which are arranged in parallel matched with the control switch.
The invention adopts an intuitive demonstration method, leads, metal loads and fault generators are respectively connected to a line, alarm linkage control is realized by utilizing a universal change-over switch and an intelligent circuit breaker, the multi-product demonstration function can be switched, the demonstration is intuitive, and the functions of alarm linkage control, multi-electric fire function demonstration switching of products and multi-product demonstration switching of products are supported; the operation is convenient, safe and practical, and the device is suitable for non-professionals to use electricity for propaganda and science popularization.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention is described in further detail with reference to the following examples, but the scope of the present invention is not limited thereto.
The invention relates to an electrical fire demonstration system supporting polymorphic switching, which comprises an electrical fire detector matched with a live wire 1 and a zero wire 2, wherein a control switch 3 is arranged in match with the electrical fire detector;
a residual current demonstration unit, an overload demonstration unit and a fault arc demonstration unit are arranged in cooperation with the control switch 3; the residual current demonstration unit, the overload demonstration unit and the fault arc demonstration unit are arranged in parallel.
The residual current demonstration unit comprises a socket 4 matched with the live wire 1 and the zero line 2, the socket 4 is disconnected with a circuit matched with the live wire 1, a metal load 5 is arranged between 2 disconnected terminals in series, and the residual current demonstration unit is electrified to simulate the leakage state; and a transparent protective shell 6 is arranged outside the metal load 5.
And a residual current transformer 7 is arranged outside the live wire 1 matched with the residual current demonstration unit, and the residual current transformer 7 is matched with the electrical fire detector.
The overload demonstration unit comprises a socket 4 matched with the live wire 1 and the zero wire 2, the socket 4 is disconnected with a circuit matched with the live wire 1, a metal clamp 8 is arranged between 2 disconnected terminals, the metal clamp 8 clamps a lead 9, a pressing part of the metal clamp 8 is insulated, current is output to the metal clamp 8, and the overload state is simulated by electrifying; and a transparent protective shell 6 is arranged outside the metal clip 8 and the lead 9.
The fault arc demonstration unit comprises a socket 4 matched with a live wire 1 and a zero wire 2, the socket 4 is disconnected with a line matched with the live wire 1, an arc generator 10 is arranged between 2 disconnected terminals, current is output to the arc generator 10, the arc generator 10 is adjusted, and a fault arc state is simulated; the arc generator 10 is externally provided with a transparent protective shell 6.
In the invention, the residual current demonstration unit has the working principle that loads are arranged by matching with a live wire 1 and a zero wire 2, a socket 4 is generally arranged, the circuit matched with the live wire 1 of the socket 4 is disconnected, and a metal load 5 (in series connection) is indirectly connected into two disconnected terminals, so that the circuit simulates an electric leakage state through the current of 1A, and the metal load 5 generates a heating and light-emitting phenomenon after passing through relatively large current for a long time, thereby enabling the electric leakage demonstration to be visualized; in the demonstration process, the residual current transformer 7 is penetrated on the live wire 1 to simulate and detect the line leakage; and in order to protect the safety of an observer, a transparent protective shell 6 is arranged outside the residual current demonstration unit.
According to the overload demonstration device, the overload demonstration unit has the working principle that loads are arranged by matching with a live wire 1 and a zero wire 2, a socket 4 is generally arranged, a circuit matched with the live wire 1 is disconnected by the socket 4, two ends of the disconnected part are respectively connected with a metal clamp 8 with an insulating sleeve at a pressing part to ensure the safety of an operator, a thin wire 9 is connected between the metal clamps 8, the circuit socket 4 is connected with an electric load to operate, the thin wire 9 is burnt off after an external insulating layer is melted by heating with large current for a long time through the current with the magnitude of more than 1A on the circuit, and visual overload is demonstrated; in order to protect the safety of the observer, a transparent protective shell 6 is arranged outside the metal clip 8 and the wires 9 of the overload presentation unit.
In the invention, the working principle of the fault arc demonstration unit is that loads are arranged by matching with a live wire 1 and a zero wire 2, a socket 4 is generally arranged, a circuit matched with the live wire 1 is disconnected by the socket 4, an arc generator 10 is connected to the disconnected part, the circuit socket 4 is connected to an electric load for operation, the arc generator 10 is controlled to generate electric sparks by passing current on the circuit, a circuit series fault arc is simulated, and the fault arc is intuitively demonstrated; to protect the safety of the observer, a transparent protective shell 6 is provided outside the arc generator 10 of the fault arc demonstration unit.
In the invention, the transparent protective shell 6 can be a transparent acrylic shell.
In the present invention, the switch 17 is used for control, which is a content that can be easily understood by those skilled in the art.
In the present invention, it is obvious that by providing the residual current transformer 7 and the current transformer 11 in the line and cooperating with the electric fire detector, the electric fire detector obtains residual current data and current data based thereon and completes control based on the control switch 3.
The control switch 3 is a circuit breaker.
The electric fire detector comprises a single-phase metering electric host 12, a communication metering electric host 13 and a three-phase metering electric host 14.
The DO output ends of the single-phase metering electric host 12 and the three-phase metering electric host 14 are connected to the control end of the circuit breaker, and the L-line rear stage of the communication metering electric host 13 is connected to the L-line input terminal of the circuit breaker and controls the circuit input of the circuit breaker.
The system also comprises 2 universal change-over switches; a universal change-over switch 15 is connected with the rear-stage live wire output of the control switch 3, and 3-way change-over terminals are respectively connected with current detection circuits of the single-phase metering electric host 12, the communication metering electric host 13 and the three-phase metering electric host 14; the other universal change-over switch 16 is connected with the rear-stage live wire output of the control switch 3, and the 3-way change-over terminals are respectively connected with the residual current detection circuits of the single-phase metering electric host 12, the communication metering electric host 13 and the three-phase metering electric host 14.
The current detection circuits of the single-phase metering electric host 12 and the three-phase metering electric host 14 are provided with current transformers 11; and residual current detecting circuits of the single-phase metering electric host 12, the communication metering electric host 13 and the three-phase metering electric host 14 are provided with residual current transformers 7.
In the invention, an intelligent circuit breaker is used as a control switch 3 to control the on-off of a detection circuit.
In the invention, DO outputs of a single-phase metering electric host 12 and a three-phase metering electric host 14 are connected to a control end of the intelligent circuit breaker, and an L-line rear stage of a communication metering electric host 13 is connected to an L-line input terminal of the intelligent circuit breaker to control circuit input of the circuit breaker.
In the invention, on the basis, multifunctional and multi-product demonstration switching can be realized; the method comprises the following steps:
the input of a universal change-over switch 15 is connected with the output of an idle switch rear-stage live wire, and 3 switching terminals are respectively connected with current detection circuits of a single-phase metering electric host 12, a communication metering electric host 13 and a three-phase metering electric host 14;
the input of another universal change-over switch 16 is connected with the output of an idle-switch rear-stage live wire, and the 3-way change-over terminal is respectively connected with the residual current detection circuits of the single-phase metering electric host 12, the communication metering electric host 13 and the three-phase metering electric host 14;
and then the independent demonstration lines of different devices can be switched through the universal change-over switch.
In the invention, due to the particularity of the communication metering electricity utilization host 13, a line can be directly accessed and read without the configuration of the current transformer 11.
In the invention, the single-phase metering electric host 12, the communication metering electric host 13 and the three-phase metering electric host 14 can adopt a 'deep-developed' SMR3002 single-phase metering electric host, an SMR3500 communication metering electric host and an SMR3250 three-phase metering electric host, and can be used for acquiring current or residual current data and triggering a control switch to carry out safety control and alarm based on abnormal conditions; of course, the technical personnel in the field can set the device according to the requirements.
Claims (10)
1. An electric fire demonstration system supporting polymorphic switching is characterized in that: the system comprises an electrical fire detector matched with a live wire and a zero line, and a control switch matched with the electrical fire detector;
a residual current demonstration unit, an overload demonstration unit and a fault arc demonstration unit are arranged in cooperation with the control switch; the residual current demonstration unit, the overload demonstration unit and the fault arc demonstration unit are arranged in parallel.
2. An electrical fire demonstration system supporting polymorphic switching according to claim 1 wherein: the residual current demonstration unit comprises a socket matched with a live wire and a zero line, the circuit matched with the live wire is disconnected by the socket, a metal load is arranged between 2 disconnected terminals in series, and the socket is electrified to simulate the leakage state; and a transparent protective shell is arranged outside the metal load.
3. An electrical fire demonstration system supporting polymorphic switching according to claim 2 wherein: and a residual current transformer is arranged outside the live wire matched with the residual current demonstration unit and is matched with the electrical fire detector.
4. An electrical fire demonstration system supporting polymorphic switching according to claim 1 wherein: the overload demonstration unit comprises a socket matched with a live wire and a zero line, the socket is disconnected with the live wire, a metal clamp is arranged between 2 disconnected terminals, the metal clamp clamps a lead, the pressing part of the metal clamp is insulated, current is output to the metal clamp, and the overload state is simulated by electrifying; transparent protective shells are arranged outside the metal clips and the wires.
5. An electrical fire demonstration system supporting polymorphic switching according to claim 1 wherein: the fault arc demonstration unit comprises a socket which is matched with a live wire and a zero line, the socket is disconnected with a line matched with the live wire, an arc generator is arranged between 2 disconnected terminals, current is output to the arc generator, the arc generator is adjusted, and a fault arc state is simulated; and a transparent protective shell is arranged outside the arc generator.
6. An electrical fire demonstration system supporting polymorphic switching according to claim 1 wherein: the control switch is a circuit breaker.
7. An electrical fire demonstration system supporting polymorphic switching according to claim 6, wherein: the electric fire detector comprises a single-phase metering electric host, a communication metering electric host and a three-phase metering electric host.
8. An electrical fire demonstration system supporting polymorphic switching according to claim 7, wherein: the DO output ends of the single-phase metering electric host and the three-phase metering electric host are connected to the control end of the circuit breaker, and the L-line rear stage of the communication metering electric host is connected to the L-line input terminal of the circuit breaker and controls the circuit input of the circuit breaker.
9. An electrical fire demonstration system supporting polymorphic switching according to claim 7, wherein: the system also comprises 2 universal change-over switches; a universal change-over switch is connected with the rear-stage live wire output of the control switch, and 3 switching terminals are respectively connected with current detection circuits of the single-phase metering electric host, the communication metering electric host and the three-phase metering electric host; the other universal change-over switch is connected with the rear-stage live wire output of the control switch, and the 3-way change-over terminals are respectively connected with the residual current detection circuits of the single-phase metering electric host, the communication metering electric host and the three-phase metering electric host.
10. An electrical fire presentation system supporting polymorphic switching, according to claim 9, wherein: current transformers are arranged on current detection circuits of the single-phase metering electric host and the three-phase metering electric host; and residual current transformers are arranged on residual current detection circuits of the single-phase metering electric host, the communication metering electric host and the three-phase metering electric host.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011636195.0A CN112735247A (en) | 2020-12-31 | 2020-12-31 | Electric fire demonstration system supporting polymorphic switching |
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| CN202011636195.0A CN112735247A (en) | 2020-12-31 | 2020-12-31 | Electric fire demonstration system supporting polymorphic switching |
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| CN112735247A true CN112735247A (en) | 2021-04-30 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114724442A (en) * | 2022-03-26 | 2022-07-08 | 润建股份有限公司 | Combined type electric fire and safety electricity utilization monitoring system and demonstration method thereof |
| CN114724442B (en) * | 2022-03-26 | 2024-05-14 | 润建股份有限公司 | Combined electrical fire and safety electricity consumption monitoring system and demonstration method thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201369084Y (en) * | 2009-03-30 | 2009-12-23 | 施耐德万高（天津）电气设备有限公司 | Electrical fire monitoring unit |
| CN201876972U (en) * | 2010-10-19 | 2011-06-22 | 浙江大华开关厂 | Residual current type electrical fire monitoring detector |
| CN202171856U (en) * | 2011-07-22 | 2012-03-21 | 傅志海 | Multiloop fire detection device |
| CN203299988U (en) * | 2013-06-14 | 2013-11-20 | 常熟开关制造有限公司(原常熟开关厂） | An electrical fire monitoring apparatus |
| CN204596224U (en) * | 2015-05-06 | 2015-08-26 | 王萌 | Tryoff is shown in a kind of electrical fire simulation |
| CN107657878A (en) * | 2017-11-16 | 2018-02-02 | 公安部四川消防研究所 | A kind of electrical fire is multiple and suppresses the demo platform of electric ignition source |
| CN209486846U (en) * | 2019-01-31 | 2019-10-11 | 杭州拓深科技有限公司 | Modular electrical fire detector based on current occurrences analysis |
| 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 |
| CN211718442U (en) * | 2019-11-28 | 2020-10-20 | 广东雅达电子股份有限公司 | Combined fault arc detector |
-
2020
- 2020-12-31 CN CN202011636195.0A patent/CN112735247A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201369084Y (en) * | 2009-03-30 | 2009-12-23 | 施耐德万高（天津）电气设备有限公司 | Electrical fire monitoring unit |
| CN201876972U (en) * | 2010-10-19 | 2011-06-22 | 浙江大华开关厂 | Residual current type electrical fire monitoring detector |
| CN202171856U (en) * | 2011-07-22 | 2012-03-21 | 傅志海 | Multiloop fire detection device |
| CN203299988U (en) * | 2013-06-14 | 2013-11-20 | 常熟开关制造有限公司(原常熟开关厂） | An electrical fire monitoring apparatus |
| CN204596224U (en) * | 2015-05-06 | 2015-08-26 | 王萌 | Tryoff is shown in a kind of electrical fire simulation |
| CN107657878A (en) * | 2017-11-16 | 2018-02-02 | 公安部四川消防研究所 | A kind of electrical fire is multiple and suppresses the demo platform of electric ignition source |
| CN209486846U (en) * | 2019-01-31 | 2019-10-11 | 杭州拓深科技有限公司 | Modular electrical fire detector based on current occurrences analysis |
| CN211718442U (en) * | 2019-11-28 | 2020-10-20 | 广东雅达电子股份有限公司 | Combined fault arc detector |
| 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114724442A (en) * | 2022-03-26 | 2022-07-08 | 润建股份有限公司 | Combined type electric fire and safety electricity utilization monitoring system and demonstration method thereof |
| CN114724442B (en) * | 2022-03-26 | 2024-05-14 | 润建股份有限公司 | Combined electrical fire and safety electricity consumption monitoring system and demonstration method thereof |
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Application publication date: 20210430 |