CN207216819U - A kind of train fire warning system and train - Google Patents
A kind of train fire warning system and train Download PDFInfo
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- CN207216819U CN207216819U CN201720929040.3U CN201720929040U CN207216819U CN 207216819 U CN207216819 U CN 207216819U CN 201720929040 U CN201720929040 U CN 201720929040U CN 207216819 U CN207216819 U CN 207216819U
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- 238000004891 communication Methods 0.000 claims abstract description 6
- 239000000779 smoke Substances 0.000 claims description 25
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000011810 insulating material Substances 0.000 claims description 4
- 230000004044 response Effects 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 abstract description 19
- 238000001514 detection method Methods 0.000 abstract description 16
- 230000008859 change Effects 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 3
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- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000013024 troubleshooting Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
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- 238000009421 internal insulation Methods 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
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Abstract
A kind of train fire warning system is provided in the embodiment of the present application, the system includes：Cable heat detection module, for detecting whether train wire harness reaches preset temperature threshold value, if detection temperature reaches predetermined threshold value, send the first monitoring signals；Alarm module, based on the first monitoring signals, send alarm signal and/or Alarm Communication signal.Herein described technical scheme can improve operational reliability of the passenger train to electric wiring, can detect wire harness temperature in real time, find supply line's fault message ahead of time, reduce disaster hidden-trouble.
Description
Technical Field
The application relates to a rail transit technology, in particular to a combined type train fire alarm system and a train.
Background
With the increase of the mileage of the railway passenger cars in China and the increase of the number of the railway passenger cars operated on line, how to ensure the safe and orderly operation of the passenger cars is the first important thing of all levels of departments of the railway. Because the train passenger train has more passengers, complex passenger personnel conditions and large power of various electrical equipment, the conditions of overload, short circuit and the like of a power supply line can be avoided, fire hazard is generated, the safety of passengers is seriously influenced, and the running order of the train is also influenced.
In order to improve the safety of the train, the existing measure for detecting the temperature of the cable of the train generally adopts a temperature sensing paste form. Pasting temperature sensing paste in electric integrated control cabinet interior lineDiameter of 10mm2Above the cable. If the temperature of the cable rises, the color change coating in the middle of the temperature sensing sticker can generate color change to remind a crew that the temperature of the cable exceeds the standard, and corresponding measures are taken. However, the temperature sensing effect of the temperature sensing sticker is not real-time, and the crew member easily ignores the warning information. Meanwhile, the temperature sensing paste has service life, and if the service life exceeds the service life, the color-changing coating in the middle of the temperature sensing paste can naturally change color.
In summary, the existing cable safety monitoring has the following problems:
(1) the temperature sensing paste has no real-time property for detecting the temperature of the cable, when the temperature of the cable rises, the temperature sensing paste only generates color change, other alarm forms are avoided, and if a crew member does not timely open the electric comprehensive control cabinet to check, alarm information is easily ignored;
(2) temperature sensing paste can only monitor the line diameter 10mm in the control cabinet2The temperature of the cables has no monitoring function on other cables, and the temperature condition of a wiring harness at the back of the control cabinet cannot be monitored;
(3) the temperature sensing paste has service life, if the service life is exceeded, the middle coating of the temperature sensing paste changes color, and the temperature sensing paste needs to be replaced in time.
SUMMERY OF THE UTILITY MODEL
In order to solve one of the above technical problems, the utility model provides a train fire alarm system, this system includes: the temperature sensing cable 6, the temperature sensing cable detector 2 and the fire alarm controller;
the temperature sensing cable 6 is attached to a wire harness 5 connected with the train control cabinet 1;
the temperature sensing cable 6 is respectively connected with the temperature sensing cable detector 2 and the terminal resistor 3 which are arranged on the train control cabinet 1;
the temperature sensing cable detector 2 is electrically connected with a fire alarm controller.
Preferably, the temperature sensing cable 6 is attached to the wire harness 5 on the mounting rack of the train control cabinet 1 between the train control cabinet 1 and the wall of the carriage 8.
Preferably, the cable temperature-sensing detection module includes: a temperature sensing cable 6;
the temperature sensing cable 6 is attached to all the wire harnesses 5 connected with the train control cabinet 1 through reciprocating bending;
one end of the temperature sensing resistor is connected with a temperature sensing cable detector 2 arranged on the train control cabinet 1, and the other end of the temperature sensing resistor is connected with a terminal resistor 3 arranged on the train control cabinet 1.
Preferably, the bending radius of the temperature sensitive cable 6 is greater than 60 mm.
Preferably, the response time of the temperature sensitive cable 6 is less than 30 seconds.
Preferably, the train fire alarm system further comprises: a plurality of smoke detectors 7;
the smoke detectors (7) are electrically connected with the fire alarm controller.
Preferably, the smoke detection module comprises: a plurality of smoke detectors 7; the smoke detectors (7) are electrically connected with the fire alarm controller.
Preferably, the smoke detector 7 is arranged on the roof of the train carriage 8 and/or in the train control cabinet 1.
Preferably, the temperature sensitive cable 6 includes: two steel cores wound together;
the outer surface of the steel core is coated with an insulating material;
and the outside of the insulating material of the two steel cores is sequentially wrapped with a binding band and a sheath.
Preferably, the alert module sends alert communication signals of the current car 8 to the other cars 8 via the train bus and/or train gateway.
In order to solve one of the above technical problems, the utility model provides a train, this train includes: a train fire alarm system as claimed in any one of the preceding claims.
The utility model has the advantages as follows:
the technical scheme of the application can improve the operation reliability of the railway passenger car on the electric wiring, can detect the temperature of the wire harness in real time, finds the fault information of the power supply circuit early and reduces the fire hazard;
according to the technical scheme, the temperature condition of each cable bundle can be comprehensively detected, and the conditions of missing detection and the like are avoided when most cables of the whole bus are detected;
the technical scheme has long service life and does not need to be frequently replaced.
This application technical scheme can in time find out the cable through temperature sensing cable outward appearance state and generate heat the point when reporting to the police for troubleshooting speed, labour saving and time saving.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a schematic diagram of a fire detection alarm system according to the present embodiment;
FIG. 2 is a schematic diagram of a smoke sensor arranged in a train carriage according to the scheme;
fig. 3 is a schematic diagram of the alarm information transmitted in the entire vehicle network according to the present scheme.
1. The train control cabinet comprises a train control cabinet body, 2, a temperature sensing cable detector, 3, a terminal resistor, 4, a control cabinet mounting frame, 5, a wire harness, 6, a temperature sensing cable, 7, a smoke detector, 8 and a carriage.
Detailed Description
In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following further detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings makes it clear that the described embodiments are only a part of the embodiments of the present application, and are not exhaustive of all embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The utility model discloses a core thinking is in the line fire alarm who introduces train with temperature sensing cable 6 and temperature sensing cable detector 2, utilizes temperature sensing cable 6 and temperature sensing cable detector 2's cooperation accuracy to pencil 5 carry out fire alarm in the train, simultaneously, for the precision that improves the warning, further sets up smoke detector 7 in carriage 8, further improves the accuracy that the conflagration judged, plays timely accurate control purpose.
Specifically, the application discloses train fire alarm system, this system includes: the cable temperature sensing detection module is used for detecting whether the train wire harness 5 reaches a preset temperature threshold value, and if the detected temperature reaches the preset threshold value, a first monitoring signal is sent out; and the alarm module is used for sending out an alarm prompt signal and/or an alarm communication signal based on the first monitoring signal.
As shown in fig. 1, the cable temperature sensing detection module includes: a temperature-sensitive cable 6 and a temperature-sensitive cable detector 2; the temperature sensing cable 6 is attached to a wire harness 5 connected with the train control cabinet 1; the temperature sensing cable 6 can show the temperature change of the wire harness 5 through the change of the appearance state in real time, and simultaneously send the temperature to the temperature sensing cable detector 2. In this scheme, in order to allow the temperature sensing cable 6 to form a detection loop, the temperature sensing cable 6 is connected to the temperature sensing cable detector 2 and the terminal resistor 3, which are disposed on the train control cabinet 1, respectively. In this embodiment, the temperature sensing cable 6 may be provided on the wire harness 5 to be detected as needed, and the temperature of the wire harness 5 in this area may be monitored. For example, the temperature sensing cable 6 is attached to the wire harness 5 on the mounting rack of the train control cabinet 1 between the train control cabinet 1 and the wall of the carriage 8; generally, after the control box is installed, the rear wiring basically moves, whether the wiring harness 5 on the back of the control box has a problem is unknown, at the moment, the temperature sensing cable is arranged on the wiring harness 5, temperature monitoring can be carried out on the wiring harness 5 in the area in real time, the monitored temperature signal is sent to the temperature sensing cable detector 2, whether the temperature of the train wiring harness 5 reaches a preset temperature threshold value is judged through the temperature sensing cable detector 2, and the first monitoring signal is sent to the alarm module according to the judgment structure. In the scheme, preferably, one temperature sensing cable 6 is adopted to monitor the temperature of the wire harness 5 in the target area. Utilize a temperature sensing cable 6 according to pencil 5's mode of arranging, reciprocal bending is in order to guarantee to be attached to all pencil 5, will be connected with temperature sensing cable detector 2 that sets up on train control cabinet 1 through the one end of temperature sensing resistance at last, and its other end is connected with terminal resistance 3 that sets up on train control cabinet 1. In consideration of the application conditions of the temperature sensing cable 6, the bending radius of the temperature sensing cable 6 needs to be ensured to be larger than 60mm, so as to ensure the safe use of the temperature sensing cable 6.
In addition, in order to ensure real-time performance of temperature sensing, in the present scheme, the response time of the temperature sensing cable 6 should be less than 20 seconds to ensure the reality and instantaneity of data.
In the scheme, in order to further improve the accuracy and diversity of fire judgment, a smoke detection module is further arranged in the system and is used for detecting whether smoke and/or fire exists in the carriage 8, and if smoke and/or fire is detected, a second monitoring signal is sent out; the alarm module can send out an alarm prompt signal and/or an alarm communication signal based on the first monitoring signal and/or the second monitoring signal so as to realize the accuracy of fire judgment and improve the judgment diversity. Preferably, the smoke detection module comprises: a plurality of smoke detectors 7. As shown in fig. 2, the smoke detector 7 is disposed on the roof of the train car 8 and/or in the train control cabinet 1. Therefore, the accuracy of fire judgment of the wire harness 5 can be improved through comprehensive judgment of the smoke detection module and the cable temperature sensing detection module. Furthermore, the smoke detector 7 can be used for judging fires at other positions in the carriage 8, so that the diversity of monitoring means is improved, and the diversity of fire monitoring in the carriage 8 is widened.
In the scheme, the alarm module is a fire alarm controller which can be arranged in the train control cabinet 1 and supplies power to the temperature sensing cable 6 and the temperature sensing cable detector 2 when fire alarm is carried out. In addition, the alarm prompt signal of the fire alarm controller can be a sound prompt signal or a luminous prompt signal.
As shown in fig. 3, in the scheme, the fire alarm controller communicates with the bus and/or the train gateway of the train, sends the alarm communication signal of the current carriage 8 to other carriages 8, and prompts workers in the train which carriage 8 has a disaster condition, so that the comprehensive management and control of the whole train are facilitated.
This scheme further provides a train, and this train includes: the train fire alarm system is as described above.
The present solution is further illustrated by the following examples.
This example provides a fire alarm system through 5 temperatures of temperature sensing cable 6 real time monitoring passenger train pencil, specifically, fire alarm system's scheme is as follows:
the system comprises a fire alarm controller, a smoke detector 7, a temperature sensing cable 6, a fire detector, a temperature sensing cable 6 and the like. Wherein,
the fire alarm controller is arranged in the train control cabinet 1, processes detection signals transmitted back by the detectors and sends alarm information. In this example, the smoke detector 7 and the temperature sensing cable 6 are both powered by the fire alarm controller.
The temperature sensing cable detector 2 is arranged inside the train control cabinet 1 and used for monitoring whether the train control cabinet 1 alarms smoke and fire; meanwhile, the temperature sensing cable detector 2 can receive temperature information of the wire harness 5 sent by the temperature sensing cable 6, the temperature sensing cable detector 2 judges the current temperature of the wire harness 5, and if the temperature of the detected train wire harness 5 reaches a preset temperature threshold value, a first monitoring signal is sent to the fire alarm controller.
The temperature sensing cable 6 is arranged on the back of the train control cabinet 1, bundled together with each wire harness 5 entering the train control cabinet 1, used for monitoring the temperature condition of the wire harness 5 in real time and sending temperature information to the temperature sensing cable detector 2 in time.
The fire alarm system sends the fire alarm information of a certain train carriage 8 to other carriages 8 through a safety loop arranged on a train network, namely when any carriage 8 has the alarm information, the locomotive and the control vehicle can receive the alarm signal through the in-train network transmission and control the train to take corresponding measures. Such as powering off a portion of the location, such as prompting a worker, etc.
The fire alarm controller can be used as a host of the whole set of fire alarm system and is used for setting common parameters of the fire alarm system, such as time, sensor type, sensor number and the like; the alarm of the machine can be carried out, the alarm of other machines can be carried out, and the sound can be manually silenced and reset after the alarm is carried out. As shown in fig. 3, the fire alarm controller has a fire alarm dry contact output (for safety loop of a whole train of passenger cars) and a safety loop load capacity of not more than 100mA, 200V.
The smoke detector 7 is arranged inside the passenger car and used for monitoring alarm information of the control cabinet 1, the sitting and lying area, the toilet, the dining area and the like, transmitting the alarm signal to the fire alarm controller and giving out sound and light alarm. Either the smoke detector 7 or the temperature-sensing cable detector 2 sends out an alarm signal, and the fire alarm controller can send out sound and light alarm. Preferably, the staff can be prompted by different signals according to different alarm signals.
In this example, the temperature sensing cable 6 is arranged on the console box mounting rack 4 at the back of the train console box 1, and bundled with each wire harness 5 entering the train console box 1. Two insulated single-core wires are arranged in the temperature sensing cable 6, the insulating layer between the wires is a temperature-sensitive insulating layer, when the temperature sensing cable 6 encounters high temperature, the insulating layer can be melted, and the two single-core wires are in contact with each other to generate short circuit.
In this example, 6 one ends of the temperature sensing cable of temperature sensing cable 6 are connected to 6 fire detector of temperature sensing cable, and a terminal resistance 3 is connected to the other end, and preferably, the resistance is 300 Ω, and after 6 internal insulation layers of temperature sensing cable melted because of the high temperature, 6 fire detector of temperature sensing cable can detect resistance, the current value between two single core wires in the temperature sensing cable 6 and change, and it sends first monitoring signal and gives fire alarm controller, and fire alarm controller sends audible and visual alarm simultaneously in the cable temperature sensing detection.
The length of the temperature sensing cable 6 can be properly adjusted according to the wiring condition of the passenger car, and the temperature sensing cable 6 and all the wire harnesses 5 at the back of the electric comprehensive train control cabinet 1 are bundled together. No matter which cable generates high temperature due to faults such as overload, the temperature sensing cable 6 can be detected in real time, and the response time is not more than 20 s.
After the temperature sensing cable 6 gives out a fire alarm, a high temperature point can be searched according to the appearance condition of the temperature sensing cable 6, a fault line can be conveniently found out, and fault information can be processed in time.
This scheme can improve railway passenger train to the operational reliability of wire harness, can real-time detection pencil 5 temperatures, discovers power supply line fault information in advance, reduces the conflagration hidden danger. The temperature condition that this scheme can detect each bundle of cable comprehensively guarantees that most cables of whole section passenger train are all in the detection, does not take place to miss the circumstances such as survey. Through adopting temperature sensing cable 6, can realize not changing the use for a long time of system to can in time find out the cable through the appearance state of temperature sensing cable 6 and generate heat the point, accelerate troubleshooting speed, labour saving and time saving.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. A train fire alarm system, comprising: the temperature sensing cable (6), the temperature sensing cable detector (2) and the fire alarm controller;
the temperature sensing cable (6) is attached to a wire harness (5) connected with the train control cabinet (1);
the temperature sensing cable (6) is respectively connected with a temperature sensing cable detector (2) and a terminal resistor (3) which are arranged on the train control cabinet (1);
the temperature sensing cable detector (2) is electrically connected with the fire alarm controller.
2. The train fire alarm system according to claim 1, wherein the temperature sensing cable (6) is attached to a harness (5) on a train control cabinet (1) mounting frame between the train control cabinet (1) and a wall of the car (8).
3. The train fire alarm system of claim 2, wherein the system comprises: a temperature sensing cable (6);
the temperature sensing cable (6) is attached to all wire harnesses (5) connected with the train control cabinet (1) through reciprocating bending;
one end of the temperature sensing resistor is connected with a temperature sensing cable detector (2) arranged on the train control cabinet (1), and the other end of the temperature sensing resistor is connected with a terminal resistor (3) arranged on the train control cabinet (1).
4. The train fire alarm system according to claim 3, wherein the temperature sensitive cable (6) has a bending radius of more than 60 mm.
5. The train fire alarm system of claim 1, wherein the response time of the temperature sensitive cable (6) is less than 20 seconds.
6. The train fire alarm system of claim 1, further comprising: a plurality of smoke detectors (7);
the smoke detectors (7) are electrically connected with the fire alarm controller.
7. A train fire alarm system according to claim 6, characterised in that the smoke detector (7) is provided on the roof of the train car (8) and/or within the train control cabinet (1).
8. The train fire alarm system according to claim 1, wherein the temperature-sensitive cable (6) includes: two steel cores wound together;
the outer surface of the steel core is coated with an insulating material;
and the outside of the insulating material of the two steel cores is sequentially wrapped with a binding band and a sheath.
9. The train fire alarm system of claim 1, wherein the fire alarm controller transmits the alarm communication signal of the current car (8) to the other cars (8) through a train bus and/or a train gateway.
10. A train, characterized in that the train comprises: the train fire alarm system of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720929040.3U CN207216819U (en) | 2017-07-28 | 2017-07-28 | A kind of train fire warning system and train |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720929040.3U CN207216819U (en) | 2017-07-28 | 2017-07-28 | A kind of train fire warning system and train |
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| Publication Number | Publication Date |
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| CN207216819U true CN207216819U (en) | 2018-04-10 |
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| CN201720929040.3U Active CN207216819U (en) | 2017-07-28 | 2017-07-28 | A kind of train fire warning system and train |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111599146A (en) * | 2020-04-01 | 2020-08-28 | 上海申铁信息工程有限公司 | Method and device for linkage of fire alarm, illumination and monitoring system of railway station |
| CN112991701A (en) * | 2019-12-18 | 2021-06-18 | 中车唐山机车车辆有限公司 | Train fire alarm system and train |
| CN113009383A (en) * | 2019-12-03 | 2021-06-22 | 中车唐山机车车辆有限公司 | Monitoring system, urban rail train, monitoring method and terminal equipment |
| CN114120598A (en) * | 2021-12-01 | 2022-03-01 | 北京磁浮有限公司 | Rail transit power supply early warning method and device, computer equipment and storage medium |
-
2017
- 2017-07-28 CN CN201720929040.3U patent/CN207216819U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113009383A (en) * | 2019-12-03 | 2021-06-22 | 中车唐山机车车辆有限公司 | Monitoring system, urban rail train, monitoring method and terminal equipment |
| CN112991701A (en) * | 2019-12-18 | 2021-06-18 | 中车唐山机车车辆有限公司 | Train fire alarm system and train |
| CN111599146A (en) * | 2020-04-01 | 2020-08-28 | 上海申铁信息工程有限公司 | Method and device for linkage of fire alarm, illumination and monitoring system of railway station |
| CN114120598A (en) * | 2021-12-01 | 2022-03-01 | 北京磁浮有限公司 | Rail transit power supply early warning method and device, computer equipment and storage medium |
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