CN112614296A - Tunnel fire detection device and alarm system based on thermoelectric cement-based composite material - Google Patents
Tunnel fire detection device and alarm system based on thermoelectric cement-based composite material Download PDFInfo
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- CN112614296A CN112614296A CN202011499203.1A CN202011499203A CN112614296A CN 112614296 A CN112614296 A CN 112614296A CN 202011499203 A CN202011499203 A CN 202011499203A CN 112614296 A CN112614296 A CN 112614296A
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/08—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using communication transmission lines
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16Y—INFORMATION AND COMMUNICATION TECHNOLOGY SPECIALLY ADAPTED FOR THE INTERNET OF THINGS [IoT]
- G16Y40/00—IoT characterised by the purpose of the information processing
- G16Y40/50—Safety; Security of things, users, data or systems
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16Y—INFORMATION AND COMMUNICATION TECHNOLOGY SPECIALLY ADAPTED FOR THE INTERNET OF THINGS [IoT]
- G16Y40/00—IoT characterised by the purpose of the information processing
- G16Y40/60—Positioning; Navigation
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Abstract
The invention discloses a tunnel fire detection device and an alarm system based on a thermoelectric cement-based composite material, which comprises a thermoelectric cement-based fire detection device, an intelligent microprocessor, a wireless communication device, an intelligent gateway and a monitoring management center, wherein the thermoelectric cement-based fire detection device realizes the intelligent sensing of fire, the intelligent microprocessor is connected with the thermoelectric cement-based fire detection device, medium-high speed wide-area fusion networking technology nodes are respectively arranged on the wireless communication device and the intelligent gateway so as to realize the wireless transmission of signals of the thermoelectric cement-based fire detection device, the intelligent microprocessor is used for receiving and processing electric signals generated when the fire detection device senses the occurrence of the fire and transmitting the signals to the intelligent gateway through the wireless communication device, the intelligent gateway can receive the signals of a plurality of communication nodes and transmit the signals to the monitoring management center, the monitoring management center judges the specific position of the occurrence of the fire according to the alarm signals of different nodes, the rescue work is convenient to arrange and organize.
Description
Technical Field
The invention belongs to the technical field of tunnel fire monitoring, relates to the field of functional materials, and particularly relates to a tunnel fire detection device and an alarm system based on a thermoelectric cement-based composite material. .
Background
Because the highway tunnel is closed and has a narrow space, once a fire disaster happens, serious casualties and economic losses can be caused. In order to improve the operation safety in the tunnel when a fire disaster occurs, a fire detection device which has excellent fire detection performance and stable state and is suitable for being arranged in a large range is indispensable. The position and the degree of the fire disaster can be accurately monitored in a short time when the fire disaster occurs, and an alarm can be given in time, so that precious time can be won for escape and arrangement of people in the tunnel and organization of fire rescue.
At present, most of tunnel fire monitoring systems in China adopt an optical fiber type temperature sensing fire detector, an optical fiber grating fire detector, a dual-wavelength flame detector, an image type fire detector and the like as fire detectors. Optical fiber formula temperature sensing fire detector and fiber grating fire detector belong to temperature sensing fire detector, mainly arrange in the vault, have the detection subregion and set up in a flexible way, can carry out advantages such as continuous real-time temperature measurement in space, but, the influence of wind speed in its temperature sensing performance easily received the tunnel, and the top can't be risen fast to the temperature, and alarm time is slower, and easy ageing, and later maintenance is with high costs. The dual-wavelength flame detector and the image type fire detector belong to photosensitive fire detectors, can be mounted on the side wall, and have the advantages of high fire response speed and accurate positioning.
In summary, it is a problem to be solved urgently how to provide a fire detector which has quick response, accurate positioning, low cost and wide range of arrangement, and is discontinuously arranged on the tunnel lining and the road surface along the longitudinal direction of the tunnel, thereby greatly shortening the time of fire detection and alarm.
Disclosure of Invention
In order to overcome a series of defects existing in the prior art, the present invention provides a tunnel fire detection device and an alarm system based on a thermoelectric cement-based composite material 1-1, including a thermoelectric cement-based fire detection device 1, an intelligent microprocessor 2, a wireless communication device 3, an intelligent gateway 4 and a monitoring management center 5, wherein the thermoelectric cement-based fire detection device 1 can generate an electrical signal under the action of temperature difference for realizing intelligent sensing of a fire, the intelligent microprocessor 2 is connected with the thermoelectric cement-based fire detection device 1, medium-high speed wide area fusion networking technology nodes are installed on the wireless communication device 3 and the intelligent gateway 4 for realizing wireless transmission of signals of the thermoelectric cement-based fire detection device 1, wherein the intelligent microprocessor 2 is used for receiving and processing the electrical signal generated by the fire detection device when sensing the occurrence of the fire, the wireless communication device 3 transmits signals to the intelligent gateway 4, the intelligent gateway 4 can receive signals of a plurality of communication nodes and transmit the signals to the monitoring management center 5, and the monitoring management center 5 judges the specific position of fire according to the alarm signals of different nodes, so that rescue work can be arranged and organized conveniently.
Preferably, the thermoelectric cement-based fire detection device 1 comprises a thermoelectric cement-based composite material 1-1, electrodes, conductive copper wires 1-4, conductive copper sheets 1-5 and a sealing layer 1-3, wherein the thermoelectric cement-based composite material 1-1 is prepared by doping conductive functional fillers into a cement matrix, the electrodes are conductive silver paste electrodes 1-2, and the conductive silver paste electrodes 1-2 cover two ends of the thermoelectric cement-based composite material 1-1; the conductive copper wire 1-4 is wound on the conductive silver paste electrode 1-2 and is used for connecting the two thermoelectric cement-based composite materials 1-1 and an external circuit; the heat conduction copper sheets 1-5 are used for ensuring that the upper surface and the lower surface of the fire detection device are uniformly heated; the sealing layers 1 to 3 are used for preventing external moisture from entering the thermoelectric cement-based fire detection device 1 to affect the temperature sensing performance thereof.
Preferably, the thermoelectric cement-based fire detection device 1 is embedded in a tunnel pavement and a secondary lining to ensure rapid and accurate detection of a fire.
Preferably, the thermoelectric cement-based fire detection device 1 is buried in a pavement, and is buried in the middle of a traffic lane and a certain buried depth is ensured, so that the vehicle load is prevented from repeatedly acting on the fire detector, and the performance of the fire detection device is influenced; when the thermoelectric cement-based fire detection device 1 is embedded in a secondary lining structure, the thermoelectric cement-based fire detection device should be embedded at the vault, arch shoulder and arch waist of the secondary lining and the surface of the secondary lining so as to quickly sense the change of the external temperature.
Preferably, the depth of embedment of the thermoelectric cement-based fire detection device 1 is 3-5 mm.
Preferably, the thermoelectric cement-based fire detection devices 1 are buried in groups at intervals of 5-10 m along the longitudinal direction of the tunnel, so as to ensure the continuity of fire detection in space.
Preferably, the thermoelectric cement-based composite material 1-1 is made by doping graphene in a cement matrix, and has a size of 20 × 20 × 80 mm.
Preferably, the thickness of the sealing layer 1-3 is 1-2 mm.
Compared with the prior art, the invention has the following beneficial effects:
1) the invention provides a tunnel fire detection device and an alarm system based on a thermoelectric cement-based composite material, wherein the thermoelectric cement-based fire detection device, an intelligent microprocessor, a wireless communication device, an intelligent gateway and a monitoring management center are arranged, and the thermoelectric cement-based composite material is used as the tunnel fire detection device and is arranged in a tunnel lining and a road surface in a large range; meanwhile, a medium-high speed wide area fusion networking technology node (WF-IOT node) is adopted to connect a plurality of wireless communication nodes to form a huge ad hoc network type intelligent sensing network, so that remote transmission of information in the sensor network is realized;
2) the invention provides a tunnel fire detection device and an alarm system based on a thermoelectric cement-based composite material, wherein a device composed of the thermoelectric cement-based composite material is used as a fire detection device and is composed of the thermoelectric cement-based composite material, an electrode, a heat conduction copper sheet and a sealing layer, so that the tunnel fire detection device and the alarm system have excellent temperature sensing performance; the cement-based material is matched with the materials used for the secondary lining and the road surface in the tunnel, so that the tunnel has the advantages of excellent fire detection performance, low manufacturing cost and wide-range use;
3) the invention provides a tunnel fire detection device and an alarm system based on a thermoelectric cement-based composite material, wherein the thermoelectric cement-based fire detection device can be flexibly buried in a secondary lining and a road surface of a tunnel and is discontinuously arranged along the longitudinal direction of the tunnel, so that the continuity of a fire detector on the space is ensured, and the fire is rapidly and accurately monitored;
4) the invention provides a tunnel fire detection device and an alarm system based on a thermoelectric cement-based composite material, which accurately position the position of fire occurrence through an alarm signal transmitted by a corresponding medium-high speed wide area fusion networking technology node (WF-IOT node), and are convenient for arrangement and organization of rescue work.
Drawings
FIG. 1 is a schematic diagram of a system structure of a tunnel fire detection device and an alarm system based on thermoelectric cement-based composite materials according to the present invention;
FIG. 2 is a schematic structural view of a thermoelectric cement-based fire detection device of a tunnel fire detection device and an alarm system based on thermoelectric cement-based composite materials according to the present invention;
FIG. 3 is a front view of a thermoelectric cement-based fire detection device of the present invention based on a thermoelectric cement-based composite material tunnel fire detection device and alarm system;
FIG. 4 is a schematic diagram showing the arrangement positions of the thermoelectric cement-based fire detection devices of the tunnel fire detection device and the alarm system based on the thermoelectric cement-based composite material of the present invention,
FIG. 5 is a schematic cross-sectional view of the thermoelectric cement-based fire detection device of the tunnel fire detection device and the alarm system based on the thermoelectric cement-based composite material.
The reference numbers in the figures are:
1: thermoelectric cement-based fire detection device, 2: intelligent microprocessor, 3: wireless communication apparatus, 4: intelligent gateway, 5: a monitoring management center; 1-1: thermoelectric cement-based composite material, 1-2: conductive silver paste electrode, 1-3: sealing layer, 1-4: conductive copper wire, 1-5: a thermally conductive copper sheet.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention.
All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiments and the directional terms described below with reference to the drawings are exemplary and intended to be used in the explanation of the invention, and should not be construed as limiting the invention.
The tunnel fire detection device and the alarm system based on the thermoelectric cement-based composite material of the invention are described in detail with reference to the accompanying drawings.
As shown in fig. 1, a tunnel fire detection device and alarm system based on thermoelectric cement-based composite material comprises a thermoelectric cement-based fire detection device 1, an intelligent microprocessor 2, a wireless communication device 3, an intelligent gateway 4 and a monitoring management center 5, wherein the thermoelectric cement-based fire detection device 1 is used for realizing intelligent sensing of fire, the intelligent microprocessor 2 is connected with the thermoelectric cement-based fire detection device 1, medium-high speed wide area fusion internet of things technology nodes are installed on the wireless communication device 3 and the intelligent gateway 4 to realize wireless transmission of signals of the thermoelectric cement-based fire detection device 1, wherein the intelligent microprocessor 2 is used for receiving and processing electric signals generated when the thermoelectric cement-based fire detection device 1 senses the occurrence of fire and transmitting the signals to the intelligent gateway 4 through the wireless communication device 3, the intelligent gateway 4 can receive signals of a plurality of communication nodes and transmit the signals to the monitoring management center 5, and the monitoring management center 5 judges the specific position of the fire according to the alarm signals of different nodes, so that the rescue work can be arranged and organized conveniently.
Preferably, as shown in fig. 2-3, the thermoelectric cement-based fire detection device 1 comprises a thermoelectric cement-based composite material 1-1, electrodes, conductive copper wires 1-4, conductive copper sheets 1-5 and a sealing layer 1-3, wherein the thermoelectric cement-based composite material 1-1 is prepared by doping a conductive functional filler into a cement matrix, the electrodes are conductive silver paste electrodes 1-2, and the conductive silver paste electrodes 1-2 cover two ends of the thermoelectric cement-based composite material 1-1; the conductive copper wire 1-4 is wound on the conductive silver paste electrode 1-2 and is used for connecting the thermoelectric cement-based composite material 1-1 with an external circuit; the heat conduction copper sheets 1-5 are used for ensuring that the upper surface and the lower surface of the fire detection device are uniformly heated; the sealing layers 1 to 3 are used for preventing external moisture from entering the thermoelectric cement-based fire detection device 1 to affect the temperature sensing performance thereof.
Preferably, the thermoelectric cement-based fire detection device 1 is embedded in a tunnel pavement and a secondary lining to ensure rapid and accurate detection of a fire.
Preferably, the thermoelectric cement-based fire detection device 1 is buried in the tunnel road surface, and is buried in the middle of a traffic lane and a certain buried depth is ensured, so that the vehicle load is prevented from repeatedly acting on the detector, and the performance is influenced; when the thermoelectric cement-based fire detection device 1 is embedded in a secondary lining structure, the thermoelectric cement-based fire detection device should be embedded at the vault, arch shoulder and arch waist of the secondary lining and the surface of the secondary lining so as to quickly sense the change of the external temperature.
Preferably, the depth of embedment of the thermoelectric cement-based fire detection device 1 is 3-5 mm.
Preferably, the thermoelectric cement-based fire detection devices 1 are buried in groups at intervals of 5-10 m along the longitudinal direction of the tunnel, so as to ensure the continuity of fire detection in space.
Preferably, the thermoelectric cement-based composite material 1-1 is made by doping graphene in a cement matrix, and has a size of 20 × 20 × 80 mm.
Preferably, the thickness of the sealing layer 1-3 is 1-2 mm.
The present invention will be described in further detail below with reference to the accompanying drawings, which illustrate preferred embodiments of the present invention.
In the preferred embodiment, which takes a one-way two-lane tunnel as an example, as shown in fig. 4 to 5, the thermoelectric cement-based fire detection apparatus 1 is buried in the tunnel pavement and the secondary lining, thereby ensuring rapid and accurate detection of a fire.
Further, the thermoelectric cement-based fire detection device 1 is buried between two lanes and in the middle of the lanes when being buried in the pavement. In addition, the embedding depth of the thermoelectric cement-based fire detection device 1 is 3-5 mm; when the thermoelectric cement-based fire detection device 1 is embedded in a secondary lining structure, the thermoelectric cement-based fire detection device should be embedded at the vault, arch shoulder and arch waist of the secondary lining and the surface of the secondary lining so as to quickly and accurately sense the change of the external temperature and timely detect fires occurring at different positions.
Furthermore, the thermoelectric cement-based fire detection devices are buried in groups at intervals of 5-10 m along the longitudinal direction of the tunnel, so that the spatial continuity of fire detection is ensured.
Finally, it should be pointed out that: the above examples are only for illustrating the technical solutions of the present invention, and are not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. A tunnel fire detection device and an alarm system based on a thermoelectric cement-based composite material comprise a thermoelectric cement-based fire detection device (1), an intelligent microprocessor (2), a wireless communication device (3), an intelligent gateway (4) and a monitoring management center (5), and are characterized in that the thermoelectric cement-based fire detection device (1) generates an electric signal under the action of temperature difference to realize intelligent sensing of fire, the intelligent microprocessor (2) is connected with the thermoelectric cement-based fire detection device (1), medium-high speed wide area fusion networking technical nodes are respectively arranged on the wireless communication device (3) and the intelligent gateway (4) to realize wireless transmission of signals of the thermoelectric cement-based fire detection device (1), wherein the intelligent microprocessor (2) is used for receiving and processing the electric signal generated by the fire detection device when sensing the occurrence of fire, and the signals are transmitted to an intelligent gateway (4) through a wireless communication device (3), and the intelligent gateway (4) receives the signals of a plurality of communication nodes and transmits the signals to a monitoring management center (5).
2. The tunnel fire detection device and the alarm system based on the thermoelectric cement-based composite material are characterized in that the thermoelectric cement-based fire detection device (1) comprises a thermoelectric cement-based composite material (1-1), electrodes, conductive copper wires (1-4), conductive copper sheets (1-5) and sealing layers (1-3), wherein the thermoelectric cement-based composite material (1-1) is made by doping conductive functional fillers into a cement matrix, the electrodes are conductive silver paste electrodes (1-2), and the conductive silver paste electrodes (1-2) cover two ends of the thermoelectric cement-based composite material (1-1); the conductive copper wire (1-4) is wound on the conductive silver paste electrode (1-2) and is used for connecting the thermoelectric cement-based composite material (1-1) and an external circuit; the heat conduction copper sheets (1-5) are used for ensuring that the upper surface and the lower surface of the fire detection device are uniformly heated; the sealing layers (1-3) are used for preventing external moisture from entering the thermoelectric cement-based fire detection device (1) to influence the temperature sensing performance of the thermoelectric cement-based fire detection device.
3. The thermoelectric cement-based composite material-based tunnel fire detection device and alarm system as claimed in claim 2, wherein the thermoelectric cement-based fire detection device (1) is buried in tunnel pavement and secondary lining to ensure rapid and accurate detection of fire.
4. The tunnel fire detection device and the alarm system based on the thermoelectric cement-based composite material as claimed in claim 3, wherein the thermoelectric cement-based fire detection device (1) is buried in the middle of a traffic lane and ensures a certain buried depth when being buried in a road surface; when the thermoelectric cement-based fire detection device (1) is buried in a secondary lining structure, the thermoelectric cement-based fire detection device is buried at the vault, arch shoulder and arch waist of the secondary lining and is buried on the surface of the secondary lining.
5. The tunnel fire detection device and alarm system based on thermoelectric cement-based composite materials as claimed in claim 4, wherein the embedding depth of the thermoelectric cement-based fire detection device (1) is 3-5 mm.
6. The tunnel fire detection device and the alarm system based on the thermoelectric cement-based composite material as claimed in claim 4, wherein the thermoelectric cement-based fire detection devices (1) are buried in groups at intervals of 5-10 m along the longitudinal direction of the tunnel.
7. A tunnel fire detection device and alarm system based on thermoelectric cement-based composite materials according to any of claims 2-6, characterized in that the thermoelectric cement-based composite materials (1-1) are made by doping graphene in a cement matrix.
8. The tunnel fire detection device and alarm system based on thermoelectric cement-based composite materials as claimed in any one of claims 2-6, wherein the thickness of the sealing layer (1-3) is 1-2 mm.
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| CN202011499203.1A CN112614296A (en) | 2020-12-18 | 2020-12-18 | Tunnel fire detection device and alarm system based on thermoelectric cement-based composite material |
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| CN202011499203.1A CN112614296A (en) | 2020-12-18 | 2020-12-18 | Tunnel fire detection device and alarm system based on thermoelectric cement-based composite material |
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Citations (6)
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| CN101770678A (en) * | 2010-01-05 | 2010-07-07 | 北京航空航天大学 | Temperature detecting fire alarm device made of thermoelectric materials |
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| CN108305430A (en) * | 2018-02-13 | 2018-07-20 | 清华大学 | A kind of fire early-warning system |
| CN108428319A (en) * | 2018-03-08 | 2018-08-21 | 西安科技大学 | A kind of passive temperature-sensing fire detecting and synchronous alarm system |
| CN111087887A (en) * | 2020-01-02 | 2020-05-01 | 华南理工大学 | Flame-retardant coating with thermoelectric response fire early warning function and preparation method and application thereof |
| CN112047675A (en) * | 2020-07-31 | 2020-12-08 | 清华大学 | Cement concrete pavement energy conversion device and preparation method thereof |
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2020
- 2020-12-18 CN CN202011499203.1A patent/CN112614296A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101770678A (en) * | 2010-01-05 | 2010-07-07 | 北京航空航天大学 | Temperature detecting fire alarm device made of thermoelectric materials |
| CN102435323A (en) * | 2011-09-21 | 2012-05-02 | 北京航空航天大学 | Automatic energy supply wireless transmission pyroelectric sensor and fire alarm system |
| CN108305430A (en) * | 2018-02-13 | 2018-07-20 | 清华大学 | A kind of fire early-warning system |
| CN108428319A (en) * | 2018-03-08 | 2018-08-21 | 西安科技大学 | A kind of passive temperature-sensing fire detecting and synchronous alarm system |
| CN111087887A (en) * | 2020-01-02 | 2020-05-01 | 华南理工大学 | Flame-retardant coating with thermoelectric response fire early warning function and preparation method and application thereof |
| CN112047675A (en) * | 2020-07-31 | 2020-12-08 | 清华大学 | Cement concrete pavement energy conversion device and preparation method thereof |
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