CN102542721A - Intelligentized fire detection tube capable of conducting abnormal information and providing early warning information - Google Patents
Intelligentized fire detection tube capable of conducting abnormal information and providing early warning information Download PDFInfo
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- CN102542721A CN102542721A CN2012100172418A CN201210017241A CN102542721A CN 102542721 A CN102542721 A CN 102542721A CN 2012100172418 A CN2012100172418 A CN 2012100172418A CN 201210017241 A CN201210017241 A CN 201210017241A CN 102542721 A CN102542721 A CN 102542721A
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Abstract
Provided is an intelligentized fire detection tube capable of conducting abnormal information and providing early warning information. A macromolecule-based thermistor material tape is continuously coated on a fire-detecting tube manufactured by extruding. Two parallel thermistor material tapes with the space larger than 2mm are continuously coated on the surface of the fire-detecting tube along the length direction, and an insulation protection layer is further coated on the macromolecule-based thermistor material tape. The macromolecular thermistor material is positive temperature coefficient (PTC) resistor or negative temperature coefficient (NTC) resistor materials or critical temperature thermistor layer materials. The intelligentized fire detection tube timely indicates and handles positions with abnormal heat sources and accordingly effectively avoids and reduces fire hazards.
Description
Technical field
A kind of fire extinguishing system that the present invention relates to relates to and is utilized in fire extinguishing agent under the pressure and promptly visits the system that fire tube discharges fire extinguishing through the fusible hollow member of fusion.But the intelligentized spy fire tube that relates to conduction abnormalities information and early warning information is provided is provided, especially to the spy fire tube and the extinguishing device of responsive to temperature indication information.
Background technology
A kind of extinguishing device that CN97193087 proposes is included in maintenance gas containers under the pressure, and design is in order to the fusible hollow member of drive unit.Fusible hollow member is connected on the foamite container, so that it can be excited by the pressure gas in the container.Between foamite container and fusible hollow member, pressure governor is housed.Pressure governor can make device ejection fire extinguishing agent, for example adopts CO
2As fire extinguishing agent.
Existing nothing electricity starts fire extinguishing system: be made up of spy fire tube, air valve, firing-fighting medium reservoir, alarm, melt when fire tube is met the condition of a fire when visiting, start the fire extinguishing of air valve release fire suppression agent.And can report to the police.
Yet; Because existing spy fire tube all is material extrusion moldings such as the employing nylon preparations that prepared the spy fire tube product of Sai Aode Ces Co.,Ltd by macromolecular material, material different can be used for the spy fire of different temperatures sensitive spot reports to the police, and typical alarm temperature is provided with 160-180 ℃; But visit fire tube and can not have any information output at present; When only if environment temperature arrives 160-180 ℃, the fire extinguishing that starts after the fusion does not have system's appearance that the responsive to temperature indication information is reported to the police.
Yet the existing spy fire tube that is prepared by macromolecular material is being used for beginning to have application on the industries such as electrical equipment, control electronics, the vehicles, aerogenerator, and is different with traditional intelligent building fire-fighting system, directly do not export potential warning message.Though the spy fire tube of macromolecular material preparation is equally distributed in shielded cabin when layout, this helps exporting protected object for information about.Especially under the situation of inferior fire, temperature is very high, and it is very important that tangible early warning indication can be arranged.
Though CN201120045189.8 has proposed the notion of pressure alarm, not mentioned how the differentiation is that the pressure that still has overheating to bring changes because the pressure that the change of temperature causes visiting in the fire tube changes.Have temperature sensor on set signals collecting, analysis, the communication module (being called for short the intelligent information module) on the valve body of the present invention and obtain the ambient temperature value in the little space of being protected in real time; And this temperature value and the pairing force value of normal temperature that is located at intelligent information module memory storage compared; If occur unusual thermal source in the little space; Receive the influence of this thermal source can bring the pressure in the pipe through the spy fire tube in this zone; And the temperature in the little space does not obviously change, example: 25 ℃ of the temperature in little space, and visit this moment in the fire tube pressure quite and the pressure during 60 ℃ of temperature.Comparing through system's logarithm value notes abnormalities, and can send early warning signal.
Can be with the length surface direction of bonding fiber to fiery inserting tube; Adopt the FBG fiber-optic grating sensor; Because of the variation of temperature, strain can cause FBG at a distance of and change of refractive, thereby the reflectance spectrum of FBG and transmission spectrum are changed, through the variation of detection FBG reflectance spectrum and transmission spectrum; Both can obtain corresponding temperature, strain information, or realize continuously the temperature survey and the position of space temperature field being confirmed with laser fiber Raman scattering effect and optical time domain reflection OTDR principle.
Summary of the invention
The present invention seeks to, but propose a kind of conduction abnormalities information and the intelligentized spy fire tube that early warning information is provided, be applicable to the fire extinguishing system of warm start, the indication information of the electric aspect in the time of can providing temperature higher or early warning indication.
Technical scheme of the present invention is: but conduction abnormalities information and the intelligentized spy fire tube that early warning information is provided are being extruded the polymer-base thermosensitive resistance material band of making on the spy fire tube of visiting the fire tube continuously coating.The general method of heating and applying that adopts of macromolecular thermosensitive resistor; Example: can macromolecular thermosensitive resistor be processed the fiber of ∮ 300-1000 micron earlier, adopt the mode add heat bonding to link to each other again with fiery inserting tube or. macromolecular thermosensitive resistor is processed powder adopts the mode of thermal spray to carry out the parallel lines of continuously coating two stripe pitch again greater than 2mm in spy fire tube length surface direction.And on coated strip macromolecular thermosensitive resistor, applying one deck insulating protective layer again, this protective seam can be that nonconducting macromolecular material also can be used insullac, both can heat coating and also can apply by normal temperature.
Improvement of the present invention is that said macromolecular thermosensitive resistor is PCT resistance or NTC resistance material, or the critical temperature thermistor layer material.
Improvement of the present invention also comprises: two stripe pitch just apply a continuous ring or contact zones greater than the every compartment of the parallel lines of 2mm apart from 20-200cm, make macromolecular thermosensitive resistor on the spy fire tube, constitute resistor network.Form the series and parallel resistance circuit, can measure the position of change in resistance, thereby confirm unusual hot source point according to its change in resistance.Send information through the intelligent information module and demarcate unusual heat source position at the display of fire protection control center.
The critical temperature thermistor layer material is the thin layer critical temperature thermistor material on polymer-based; This is a kind of special electronics constant temperature material, adopts this critical thermistor CTR as senser element, and CTR at room temperature has high resistivity value (reach 1M Ω/more than the square centimeter); Rising along with environment temperature; Resistance can descend slowly, and when reaching predetermined temperature spot, the resistivity of critical resistance can reduce to tens ohm-sq centimetre rapidly; Make marking current increase rapidly, the spy fire tube of early warning information can send alerting signal to alarm controller.According to the prescription of existing different materials, it is also different to produce the drastic change temperature spot, and many specifications such as 68 ℃, 85 ℃, 105 ℃ and 138 ℃ have been arranged.
Beneficial effect of the present invention is: through the spy fire tube that provides; Extrusion molding preparations such as the high molecule alloy material example PA/PBT that forms with macromolecular material such as nylon PA, PET, PBT, PC, PP or above-mentioned material, PA/PET, PA/PC, PA/PP can be through continuously through adopting blending technology to add when making or the polymer-base thermosensitive resistance material of the spy fire tube of continuously coating obtains indication information or early warning indication aspect temperature electric when higher extruding.Above-mentioned fiery inserting tube is laid in the zone that needs protection; The unusual thermal source that occurs in the zone will cause the resistance of thermistor to change can be arranged on the intelligent information module detecting on the valve body in real time; And to fire protection control center transmission abnormity early warning signal, and can identify the unusual zone of appearance.The personnel of patrolling and examining can arrive the appointed area with a definite target in view, and can accurately find the place that goes wrong because of the color similarities and differences that receive temperature variation and produce daytime according to visiting fire tube.Abnormity point can be sought according to the bright spot infrared, that the ultraviolet excited fluorescence material occurs that the Yin Wendu rising produces in ground in the illumination difficulty.To in time indicating and handle in the position that unusual thermal source occurs, thereby effectively avoid and reduce the generation of fire.Run into simultaneously the paroxysmal condition of a fire also can visit fire tube molten when broken not by the situation of extra power under the fire extinguishing of self-starting air valve.2. be used for little space 10-20M
3The fire extinguishing system of band temperature comparison system: on valve body, be provided with can be compatible with existing fire-fighting control system signals collecting, analysis, communication module (being called for short the intelligent information module).
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the another kind of structural representation of the present invention.
Fig. 3 is an another kind of structural representation of the present invention.
Embodiment
The present invention constitutes a distributed resistance 2 visiting on the fire tube 1, need apply working power during work, the electric current that flows through is got into detect the high temperature hotspot that can judge roughly in the zone of visiting fire tube.Fig. 2 has constituted resistor network.
Its material can be a high molecular PTC (Positive Temperature Coefficient positive temperature coefficient (PTC); Increase with temperature rising resistance) thermistor, macromolecule NTC (Negative Temperature Coefficient negative temperature coefficient reduces with temperature rising resistance) thermistor or macromolecule CNT thermistor.With the macromolecular PTC thermistor is example:
Macromolecular PTC thermistor experimental data (working temperature-20--150 ℃)
| Temperature ℃ | 36 | 50 | 65 | 78 | 89 | 102 | 125 | 135 |
| Resistance | 22.5 | 27.2 | 33.3 | 43 | 60 | 108.2 | 495.5 | 2695 |
Usually the working temperature-20 of fire extinguishing system is ℃-60 ℃; The resistance of its set macromolecular PTC thermistor can change when the spy fire tube of being laid runs into unusual thermal source; The information of both unusual thermal source is visited fire tube through the variation of resistance and is conducted to the intelligent information module, can send early warning information during its local temperature temperature rise to 90 ℃ (or temperature value of other setting).The NTC negative temperature coefficient resister has same effect.
Spy fire tube extinguishing device according to the above-mentioned material application; Comprise the spy fire tube and the working power that are provided with the critical temperature thermistor layer; Existing spy fire tube matrix is the about 6-8mm of diameter; The pipeline of methods such as the macromolecular material extrusion molding of the about 1-2mm of wall thickness preparation, for example like the spy fire tube product of Luo Dade Ces Co.,Ltd, its tube wall and outside surface are all very smooth.
Adopt the structure of the spy fire tube of critical temperature thermistor layer that other a kind of embodiment is arranged: to carry out continuously coating (mode of spraying or printing slurry) first conductive layer in the outside surface side length direction of this pipe; Conductive of the present invention can be silver, copper powder slurry; Also can be graphite or toner slurry; Dry back applies one deck critical temperature thermistor CTR material on first conductive layer; Critical temperature thermistor CTR material surface applies second conductive layer again; < < the first conductive width connects working power at the valve port position of visiting the fire tube installation between first conductive layer and second conductive layer to the spy fire tube to thermistor CTR material width to the width of (spraying or print the width of time control slurrying material coating) second conductive layer.Working power offers the spy fire tube of critical temperature thermistor layer through following structure: be provided with a diameter and be slightly larger than the metal ferrules of visiting the fire tube external diameter and be enclosed within to visit on the fire tube and electrically contact with first conductive layer; Metal ferrules is as a utmost point of power supply; The critical temperature thermistor that second conductive layer passes through applies WV, and second conductive layer is drawn conductive electrode through the mode of conductive adhesive.
The proportioning of critical temperature thermistor CTR material layer is a prior art: critical temperature thermistor CTR (CritiCal Temperature Resistor) material has the negative resistance catastrophe characteristics; Under a certain temperature; Resistance value swashs with the increase of temperature and reduces sharply for a short time, has very big negative temperature coefficient.The critical temperature thermistor material is the mixed sintering body material of vanadium, barium, strontium, P elements oxide; It is half glass semiconductor; Claim that also CTR is the glassy state thermistor. the cataclysm temperature becomes with the oxide that adds germanium, tungsten, molybdenum etc. and this is mixing owing to different impurities; The lattice spacing difference of vanadium oxide is caused. if certain vanadium pentoxide becomes vanadium dioxide, then resistance sudden turn of events temperature becomes big; If further be reduced to vanadium trioxide, then the sudden turn of events disappears.Have a resistance the temperature of the sudden turn of events corresponding to the position of the half glass semiconductor rerum natura sudden turn of events, and the present invention adopts the material prescription of the specification of existing 105 ℃ and 138 ℃ two (electric resistance sensor) resistance sudden turn of events temperature.This material be broken into powder and become slurry and increase bonding agent after apply, the thickness of coating is the 25-40 micron, accomplishes through second coat.The product that adopts Billy scientific & technical corporation to provide like the critical temperature thermistor material.On this critical temperature thermistor layer, apply second conductive layer.
Another structure is: macromolecular thermosensitive resistor is processed the fiber of ∮ 300-1000 micron earlier, adopt the mode that adds heat bonding to link to each other with fiery inserting tube again and on the macromolecular thermosensitive resistor line, cover one deck polymer insulating film; Or macromolecular thermosensitive resistor is processed powder adopt the mode of thermal spray to carry out continuously coating again in spy fire tube length surface direction.
Macromolecular thermosensitive resistor coating 35-1000 micron, insulating protective layer coating 35-1000 micron; Dark macromolecular thermosensitive resistor layer is exposed in the insulation course strip off, again lead is attached thereto and inserts the intelligent information module.Macromolecular thermosensitive resistor under the spy fire tube receives the influence of unusual thermal source, and resistance value changes, and this information is by the information module perception, when reaching the value that sets, by sending unusual thermal source early warning information.
Through being provided, a kind of band can monitor the intelligentized fire extinguishing system of cutting off the power supply and starting that unusual thermal source early warning information is provided that institute's protection zone environment temperature and normal pressure value are compared in real time.Its intelligent information module is set directly on the valve body and need not through external parts such as threeways.
Adopt intelligentized structure to be: bonding fiber is fitted to the length surface direction of fiery inserting tube.Adopt the FBG fiber-optic grating sensor; Because of the variation of temperature, strain can cause FBG at a distance of and change of refractive; Thereby the reflectance spectrum of FBG and transmission spectrum are changed; Through detecting the variation of FBG reflectance spectrum and transmission spectrum, both can obtain corresponding temperature, strain information, or realize continuously the temperature survey and the position of space temperature field being confirmed with laser fiber Raman scattering effect and optical time domain reflection OTDR principle.
All thermistor materials working power in use are arranged to the 5-36V direct supply, and being made up of with bomb valve body provides the spy of early warning information fire tube extinguishing device.Comprise fire extinguishing agent storage bottle, store up cylinder valve, spy fire tube, the protected area of early warning information are provided; The said spy fire tube of early warning information that provides is arranged in said protected area; Provide the spy fire tube of early warning information to connect the outlet of storing up cylinder valve; Said spy fire tube exposes to said protected area, is provided with early warning information newspaper warning device, and said early warning information newspaper warning device comprises working power, microprocessor and alarm module.
Claims (10)
1. but conduction abnormalities information and the intelligentized spy fire tube that early warning information is provided is characterized in that extruding continuously coating polymer-base thermosensitive resistance material band on the manufacturing spy fire tube.
2. but conduction abnormalities information according to claim 1 and the intelligentized spy fire tube that early warning information is provided is characterized in that carrying out the parallel thermistor material band of continuously coating two stripe pitch greater than 2mm in spy fire tube length surface direction; And on coated strip macromolecular thermosensitive resistor, apply one deck insulating protective layer again.
3. but conduction abnormalities information according to claim 1 and 2 and the intelligentized spy fire tube that early warning information is provided is characterized in that said macromolecular thermosensitive resistor material is PCT resistance or NTC resistance material, or the critical temperature thermistor layer material.
4. but conduction abnormalities information according to claim 1 and 2 and the intelligentized spy fire tube that early warning information is provided; The every compartment that it is characterized in that two parallel thermistor material bands just applies a continuous ring or contact zones apart from 20-200cm, makes macromolecular thermosensitive resistor visit the resistor network that constitutes the formation series parallel circuits on the fire tube.
5. but conduction abnormalities information according to claim 1 and 2 and the intelligentized spy fire tube that early warning information is provided; It is characterized in that adopting the critical temperature thermistor layer material; Outside surface side length direction visiting fire tube is carried out continuously coating first conductive layer; Dry back applies one deck critical temperature thermistor CTR material on first conductive layer; Critical temperature thermistor CTR material surface applies second conductive layer again, and < < the first conductive width connects working power between first conductive layer and second conductive layer for the spy fire tube at the valve port position of visiting the fire tube installation to thermistor CTR material width to the width of second conductive layer.
6. but conduction abnormalities information according to claim 5 and the intelligentized spy fire tube that early warning information is provided; It is characterized in that being provided with a diameter is slightly larger than the metal ferrules of visiting the fire tube external diameter and is enclosed within to visit on the fire tube and electrically contacts with first conductive layer; Metal ferrules is as a utmost point of power supply; The critical temperature thermistor that second conductive layer passes through applies WV, and second conductive layer is drawn conductive electrode through the mode of conductive adhesive.
7. but conduction abnormalities information according to claim 1 and 2 and the intelligentized spy fire tube that early warning information is provided; It is characterized in that macromolecular thermosensitive resistor is processed earlier the fiber of ∮ 300-1000 micron, adopt the mode add heat bonding to link to each other again and on the macromolecular thermosensitive resistor line, cover one deck polymer insulating film with fiery inserting tube; Or macromolecular thermosensitive resistor is processed powder adopt the mode of thermal spray to carry out continuously coating again in spy fire tube length surface direction.
8. but conduction abnormalities information according to claim 1 and 2 and the intelligentized spy fire tube that early warning information is provided is characterized in that macromolecular thermosensitive resistor coating 35-1000 micron, insulating protective layer coating 35-1000 micron.
9. but conduction abnormalities information according to claim 1 and 2 and the intelligentized spy fire tube that early warning information is provided; It is characterized in that providing a kind of band can monitor the intelligentized fire extinguishing system of cutting off the power supply and starting that unusual thermal source early warning information is provided that institute's protection zone environment temperature and normal pressure value are compared in real time, its intelligent information module is set directly at and need not on the valve body through external parts such as threeways; Macromolecular thermosensitive resistor under the spy fire tube receives the influence of unusual thermal source, and resistance value changes, and this information is by the information module perception, when reaching the value that sets, by sending unusual thermal source early warning information.
10. but conduction abnormalities information according to claim 1 and 2 and the intelligentized spy fire tube that early warning information is provided is characterized in that adopting the FBG fiber-optic grating sensor to fit the length surface direction of bonding fiber to fiery inserting tube.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100172418A CN102542721A (en) | 2012-01-19 | 2012-01-19 | Intelligentized fire detection tube capable of conducting abnormal information and providing early warning information |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100172418A CN102542721A (en) | 2012-01-19 | 2012-01-19 | Intelligentized fire detection tube capable of conducting abnormal information and providing early warning information |
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| CN102542721A true CN102542721A (en) | 2012-07-04 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102746644A (en) * | 2012-07-23 | 2012-10-24 | 武汉理工大学 | Plastic fire detecting tube for automatic fire detecting and extinguishing device |
| CN109303992A (en) * | 2018-09-27 | 2019-02-05 | 杭州普瑞安消防科技有限公司 | A kind of intelligence tubular type automatic fire extinguisher |
| CN109621256A (en) * | 2018-12-07 | 2019-04-16 | 河南中消物联科技有限公司 | A kind of the condition of a disaster monitoring system and its improved fire trace tube of structure |
| CN110033588A (en) * | 2019-04-30 | 2019-07-19 | 国网安徽省电力有限公司淮北供电公司 | A kind of sampling pipe, fire detection equipment and early warning system, method for early warning and device |
| CN111720757A (en) * | 2020-06-04 | 2020-09-29 | 陈征 | Intelligent pipe and intelligent pipe network |
| US11473973B2 (en) | 2018-11-30 | 2022-10-18 | Carrier Corporation | Ultraviolet flame detector |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101059378A (en) * | 2007-06-01 | 2007-10-24 | 张陈 | Double-temperature linetype temperature inductor |
| CN201000663Y (en) * | 2006-12-05 | 2008-01-02 | 张陈 | Recovered cable type linetype constant temperature, difference constant temperature fire detector |
| KR20090052551A (en) * | 2007-11-21 | 2009-05-26 | 주식회사 온스톤 | Continuous temperature sensor and cable having the same |
-
2012
- 2012-01-19 CN CN2012100172418A patent/CN102542721A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201000663Y (en) * | 2006-12-05 | 2008-01-02 | 张陈 | Recovered cable type linetype constant temperature, difference constant temperature fire detector |
| CN101059378A (en) * | 2007-06-01 | 2007-10-24 | 张陈 | Double-temperature linetype temperature inductor |
| KR20090052551A (en) * | 2007-11-21 | 2009-05-26 | 주식회사 온스톤 | Continuous temperature sensor and cable having the same |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102746644A (en) * | 2012-07-23 | 2012-10-24 | 武汉理工大学 | Plastic fire detecting tube for automatic fire detecting and extinguishing device |
| CN102746644B (en) * | 2012-07-23 | 2014-10-01 | 武汉理工大学 | Plastic fire detecting tube for automatic fire detecting and extinguishing device |
| CN109303992A (en) * | 2018-09-27 | 2019-02-05 | 杭州普瑞安消防科技有限公司 | A kind of intelligence tubular type automatic fire extinguisher |
| US11473973B2 (en) | 2018-11-30 | 2022-10-18 | Carrier Corporation | Ultraviolet flame detector |
| CN109621256A (en) * | 2018-12-07 | 2019-04-16 | 河南中消物联科技有限公司 | A kind of the condition of a disaster monitoring system and its improved fire trace tube of structure |
| CN109621256B (en) * | 2018-12-07 | 2023-11-10 | 河南中消物联科技有限公司 | Disaster monitoring system and fire detection tube with improved structure |
| CN110033588A (en) * | 2019-04-30 | 2019-07-19 | 国网安徽省电力有限公司淮北供电公司 | A kind of sampling pipe, fire detection equipment and early warning system, method for early warning and device |
| CN110033588B (en) * | 2019-04-30 | 2023-12-12 | 国网安徽省电力有限公司淮北供电公司 | Sampling tube, fire detection equipment, early warning system, early warning method and device |
| CN111720757A (en) * | 2020-06-04 | 2020-09-29 | 陈征 | Intelligent pipe and intelligent pipe network |
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Application publication date: 20120704 |