CN202013625U - Restorable temperature-sensing cable - Google Patents
Restorable temperature-sensing cable Download PDFInfo
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- CN202013625U CN202013625U CN2011201155162U CN201120115516U CN202013625U CN 202013625 U CN202013625 U CN 202013625U CN 2011201155162 U CN2011201155162 U CN 2011201155162U CN 201120115516 U CN201120115516 U CN 201120115516U CN 202013625 U CN202013625 U CN 202013625U
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Abstract
The utility model discloses a restorable temperature-sensing cable. The cable structurally comprises a wire A, a wire B and a woven layer which are wound together. The winding pitch is 2-19 millimeters, the woven layer is arranged between the wire A and the wire B, and the wire A is not contact with the wire B. The wire A structurally comprises an elastic conductor, a thermal sensitive material layer wrapped outside of the elastic conductor and a conducting film which is wrapped outside the thermal sensitive material layer in section mode. The wire B structurally comprises an elastic conductor and a negative temperature coefficient thermal sensitive material layer or a conducting material layer which are wrapped outside the elastic conductor. Accuracy of the restorable temperature-sensing cable is not affected, after fire alarm is given out. The restorable temperature-sensing cable need not to be replaced and can continue to use, thereby saving cost.
Description
Technical field
The utility model relates to fire control equipment, is specially fire alarm, is specifically related to a kind of renewable type temperature sensing cable.
Background technology
Cable tunnel, large-sized cable chamber, Hydraulic Station, oil depot, petroleum storage tank, electrical distribution system, warehouse, chemicals storage and production plant and hangar etc. locate that fire-fighting is had quite strict requirement, need reliable fire alarm detecting devices.Temperature sensing fire alarm commonly used, the general using temperature sensing cable is as the source of signals collecting.Its principle is, when environment temperature raises, and the temperature sensing cable of the above-mentioned type, change in resistance between the tinsel perhaps is short-circuited, and realizes alarm output.
Temperature sensing cable commonly used has several like this:
(1) utilize the coaxial temperature sensing cable of negative temperature coefficient (NTC) thermistor, in case there is the condition of a fire to take place, negative temperature coefficient (NTC) thermistor material Yin Wendu raises, and its resistance changes thereupon, by decoding signals perception resistance and warning; This class temperature sensing cable precision on point value is higher, but length precision can variation when increasing, the easy wrong report by mistake influenced by environmental temperature;
(2) two temperature sensing cables that above heat-sensitive cable strand winding becomes, thermo-sensitive material fusion when the condition of a fire takes place, the tinsel of internal package is short-circuited, and reports to the police; But this class temperature sensing cable melts the back at thermo-sensitive material just must be changed;
(3) heat-sensitive cable twists the temperature sensing cable that winding becomes with negative temperature coefficient heat-sensitive resistance material, in case there is the condition of a fire to take place, negative temperature coefficient (NTC) thermistor material Yin Wendu raises, its resistance changes thereupon, by this variation of decoding signals perception, carry out conversion of signals,, realize fire alarm by MICROCOMPUTER PROCESSING; Negative temperature coefficient can take place after thermo-sensitive material melts mix with thermistor material, influence its characteristic, the shortcoming that must change after also existing.
Therefore, need a kind ofly recover and reuse, and the little temperature sensing cable of precision influence.
The utility model content
The utility model aims to provide a kind of reusable renewable type temperature sensing cable.
Be achieved through the following technical solutions:
A kind of renewable type temperature sensing cable, adopt on the structure lead A, the lead B will be enclosed with thermo-sensitive material and netted insulation material layer twist around, strand is 2～19mm around pitch; Netted insulation material layer is between lead A and lead B, and lead A does not contact with lead B;
The structure of lead A comprises tinsel and is wrapped in tinsel outer negative temperature coefficient (NTC) heat-sensitive material layer or semiconductor temperature-sensitive material layer; And segmentation parcel conducting film outside NTC heat-sensitive material layer or semiconductor temperature-sensitive material layer; Every section conducting film length is 1～1500cm, thickness 2～5000um; Each section conducting film is at interval every 0.2～200cm;
The structure of lead B comprises tinsel and is wrapped in tinsel outer negative temperature coefficient (NTC) heat-sensitive material layer, semiconductor temperature-sensitive material layer or conductive material layer.
The thickness of the negative temperature coefficient thermistor composition layer of lead A or lead B, semiconductor temperature-sensitive material layer or conductive material layer is preferably 0.1～4mm;
Elastic conductor is preferably elastic wire or memory alloy wire, and material is selected from the alloy of copper, iron, nickel, molybdenum, stainless steel wire and above-mentioned material thereof, and diameter is 0.1～3mm, and tensile strength is 1000～5000pa.
The braid material can be selected the tinsel of wrap insulate material or the filament of insulating material for use.
The negative temperature coefficient heat-sensitive layer, its resistance is negative temperature coefficient feature, and environment temperature makes when raising that negative temperature coefficient (NTC) thermal resistor layer is softening, sees through netted insulation material layer, make between lead A and the lead B to be short-circuited, resistance is promptly sent alerting signal after reaching alarm set value.Even this temperature sensing cable that recovers melts at local thermo-sensitive material, owing between lead A and the lead B netted insulation material layer is arranged, reduce in temperature, after the negative tempperature coefficient thermistor layer solidifies, still be insulation between lead A and the lead B, can continue to use and do not influence its precision.Therefore, after fire alarm, also needn't change temperature sensing cable, cost-saved.
Description of drawings
Fig. 1 is embodiment 1 a renewable type temperature sensing cable structural representation
Fig. 2 is the sectional view of Fig. 1 on the A-A direction
Fig. 3 is the lead A structural representation of parcel conductive plastic film
Fig. 4 is the sectional view of embodiment 2
Wherein, 10-lead A, 11-elastic conductor, 12-negative temperature coefficient thermistor composition layer, 13-semiconductor temperature-sensitive material layer, 14-conducting film, 20-lead B, 21-elastic conductor, 22-negative tempperature coefficient thermistor layer, 30-netted insulation material layer, 50-oversheath
Embodiment
Embodiment 1
As depicted in figs. 1 and 2, lead A10 comprises elastic conductor 11(diameter 0.8mm) and be wrapped in the quick layer of the outer negative temperature coefficient hot material of elastic conductor 12(thickness 2mm), and twine parcel conducting film 14, as Fig. 3; The material of conducting film is carbon or metal film, and every section conducting film length is 10～150cm, thickness 20～500um; The spacing distance of every section conducting film is 0.2～20cm.
Lead A, lead B and netted insulation material layer 30 strands are around together, and strand is 2～19mm around pitch; Netted insulation material layer is between lead A and lead B, and lead A does not contact with lead B; At lead A, lead B and netted insulation material layer outer wrapping oversheath 50, constitute the renewable type temperature sensing cable.
Netted insulation material layer softening temperature point is 150 ℃～1000 ℃, can adopt insulating material such as the tinsel braiding of nylon wire, filament, plastics silk and wrap insulate material to form, and mesh is the circular hole of continuous equi-spaced apart distribution or the mesh of other arbitrary shape; The mesh spacing is at 0.15mm～5mm; The thickness of netted insulation material layer is 0.1～2mm.
Selected elastic conductor tensile strength is not less than 1000pa, between 1000～5000pa, is elastic metallic yarn or memory alloy wire, and material is the alloy of copper, iron, nickel, molybdenum, stainless steel or above-mentioned material.
The melt temperature of negative tempperature coefficient thermistor layer is 60 ℃～350 ℃.Can select suitable material according to actual conditions.
Environment temperature makes when raising that the negative tempperature coefficient thermistor layer is softening, sees through netted insulation material layer, is short-circuited between lead A and the lead B, and resistance is promptly sent alerting signal after reaching alarm set value.After temperature reduction, negative tempperature coefficient thermistor layer solidify, because netted insulation material layer is arranged, still be insulation between lead A and the lead B, can continue to use does not influence its precision.
Embodiment 2
As shown in Figure 4, lead A 10 comprises elastic conductor 11(diameter 0.5mm) and be wrapped in the outer semiconductor temperature-sensitive material layer 13(thickness 1.5mm of elastic conductor); And parcel conducting film 14; Conducting film is metal knitted net, and every section metal knitted net length is 10～100cm, and thickness is 200um; The spacing distance of every section metal knitted net is 0.5～2cm;
Lead A, lead B and netted insulation material layer 30 strands are around together, and strand is 2～19mm around pitch; Braid is between lead A and lead B, and lead A does not contact with lead B; At lead A, lead B and braid outer wrapping oversheath 50, constitute the renewable type temperature sensing cable.
Netted insulation material layer softening temperature point is 150 ℃～1000 ℃, can adopt insulating material such as the tinsel braiding of nylon wire, filament, plastics silk and wrap insulate material to form, and mesh is the circular hole of continuous equi-spaced apart distribution or the mesh of other arbitrary shape; The mesh spacing is at 0.15mm～5mm; The thickness of netted insulation material layer is 0.1～2mm.
Selected elastic conductor tensile strength is not less than 1000pa, between 1000～5000pa, is elastic metallic yarn or memory alloy wire, and material is the alloy of copper, iron, nickel, molybdenum, stainless steel or above-mentioned material.
The melt temperature of negative temperature coefficient thermistor composition layer and semiconductor temperature-sensitive material layer is 60 ℃～350 ℃.Can select suitable thermo-sensitive material according to actual conditions.
When environment temperature raises, make negative tempperature coefficient thermistor layer and semiconductor temperature-sensitive material layer softening, see through netted insulation material layer, be short-circuited between lead A and the lead B, resistance is promptly sent alerting signal after reaching alarm set value.After temperature reduction, negative tempperature coefficient thermistor layer and semiconductor temperature-sensitive material layer solidify, because netted insulation material layer is arranged, still be insulation between lead A and the lead B, can continue to use does not influence its precision.
Embodiment 3
Lead A comprises elastic conductor (diameter 3mm) and is wrapped in the outer negative temperature coefficient thermistor composition layer (thickness 4mm) of elastic conductor; And parcel conducting film; Conducting film is high temperature resistant electroconductive paints (the melting point temperature is 200 ℃), and the method that sprays by segmentation is coated in outside the negative temperature coefficient thermistor composition layer 13, and the length of every section electroconductive paints is 100～10000cm, and thickness is 10～1000um; The spacing distance of every section metal knitted net is 2～100cm;
Lead B comprises elastic conductor (diameter 3mm) and is wrapped in the outer conductive material layer (thickness 4mm) of elastic conductor;
Lead A, lead B and netted insulation material layer strand is around together, and strand is 2～19mm around pitch; Netted insulation material layer is between lead A and lead B, and lead A does not contact with lead B;
Netted insulation material layer softening temperature point is 150 ℃～1000 ℃, can adopt insulating material such as the tinsel braiding of nylon wire, filament, plastics silk and wrap insulate material to form, and mesh is the circular hole of continuous equi-spaced apart distribution or the mesh of other arbitrary shape; The mesh spacing is at 0.15mm～10mm; The thickness of netted insulation material layer is 0.1～2mm.
When environment temperature raises, make conductive material layer and negative tempperature coefficient thermistor layer softening, see through netted insulation material layer, be short-circuited between lead A and the lead B, resistance is promptly sent alerting signal after reaching alarm set value.Reduce in temperature, after netted insulation material layer, conductive material layer and negative tempperature coefficient thermistor layer solidify, because netted insulation material layer is arranged, still be insulation between lead A and the lead B, can continue to use does not influence its precision.
In the foregoing description, negative temperature coefficient thermistor composition layer that lead B is used or conductive material layer can replace with semiconductor temperature-sensitive material layer, and effect is identical.
Claims (7)
1. renewable type temperature sensing cable is characterized in that: stack is provided with the netted insulation material layer of one deck between lead A, lead B, and carries out strandedly, and twisting pitch is 2～19mm;
The netted insulation material layer in stranded back is between lead A and lead B; Be in contactless state between lead A and the lead B;
The structure of lead A comprises elastic conductor, and the negative temperature coefficient thermistor composition layer or the semiconductor temperature-sensitive material layer that wrap up on elastic conductor; The outer segmentation parcel of described negative temperature coefficient thermistor composition layer or semiconductor temperature-sensitive material layer conducting film, conducting film length is 1cm～15000cm, the spacing distance between every section conducting film is 0.2～200cm;
The structure of lead B comprises elastic conductor, and the negative temperature coefficient thermistor composition layer, semiconductor temperature-sensitive material layer or the conductive material layer that wrap up on elastic conductor.
2. a kind of renewable type temperature sensing cable according to claim 1 is characterized in that, netted insulation material layer softening temperature point is 150 ℃～1000 ℃; The mesh spacing is at 0.15mm～10mm; The thickness of netted insulation material layer is 0.1～2mm; Netted insulation material layer is formed by the metal wire knitted of nylon wire, filament, plastics silk or wrap insulate material.
3. a kind of renewable type temperature sensing cable according to claim 1 is characterized in that: the thickness of described negative temperature coefficient thermistor composition layer, semiconductor temperature-sensitive material layer or conductive material layer is 0.1～4mm.
4. claim 1 or 3 described a kind of renewable type temperature sensing cables, it is characterized in that: the melting point temperature of described negative temperature coefficient thermistor composition layer, conductive material layer or semiconductor temperature-sensitive material layer is 60 ℃～260 ℃.
5. the described a kind of renewable type temperature sensing cable of claim 1, it is characterized in that: described elastic conductor diameter is 0.15～3mm, tensile strength is 1000～5000pa.
6. claim 1 or 5 described a kind of renewable type temperature sensing cables is characterized in that described elastic conductor is memory alloy wire or elastic metallic yarn, and material is selected from the alloy of copper, iron, nickel, molybdenum, stainless steel or above-mentioned material.
7. the described a kind of renewable type temperature sensing cable of claim 1, it is characterized in that: described conducting film thickness is 2um～5000um, the melting point temperature is 70 ℃～1000 ℃, described conducting film is wrapped in outside negative temperature coefficient thermistor composition layer or the semiconductor temperature-sensitive material layer by the method for twining, conductive filament braiding or segmentation spray high temperature resistant conductive material;
The material of conducting film is metal material, conductive plastics, electroconductive paints or carbon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201155162U CN202013625U (en) | 2011-04-18 | 2011-04-18 | Restorable temperature-sensing cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201155162U CN202013625U (en) | 2011-04-18 | 2011-04-18 | Restorable temperature-sensing cable |
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| Publication Number | Publication Date |
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| CN202013625U true CN202013625U (en) | 2011-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011201155162U Expired - Fee Related CN202013625U (en) | 2011-04-18 | 2011-04-18 | Restorable temperature-sensing cable |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775831A (en) * | 2014-01-20 | 2014-05-07 | 江苏科技大学 | Airplane high-temperature pressure air pipeline leakage detection system |
| CN103854734A (en) * | 2014-02-28 | 2014-06-11 | 安徽复兴电缆集团有限公司 | Recoverable flexible temperature sensing cable |
| CN103956201A (en) * | 2014-04-02 | 2014-07-30 | 安徽复兴电缆集团有限公司 | Recoverable temperature sensing composite cable |
| CN105688356A (en) * | 2016-04-07 | 2016-06-22 | 江苏中远消防设备有限公司 | Linear detecting switch for fire site quick response temperature |
| CN105809876A (en) * | 2016-05-06 | 2016-07-27 | 青岛中阳消防科技股份有限公司 | Line type temperature-sensing detection cable |
| EP3499474A1 (en) * | 2017-12-12 | 2019-06-19 | Airbus SAS | A fire sensor, apparatus and system |
-
2011
- 2011-04-18 CN CN2011201155162U patent/CN202013625U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775831A (en) * | 2014-01-20 | 2014-05-07 | 江苏科技大学 | Airplane high-temperature pressure air pipeline leakage detection system |
| CN103775831B (en) * | 2014-01-20 | 2017-04-05 | 江苏科技大学 | Aircraft high temperature pressure air duct leak detection system |
| CN103854734A (en) * | 2014-02-28 | 2014-06-11 | 安徽复兴电缆集团有限公司 | Recoverable flexible temperature sensing cable |
| CN103854734B (en) * | 2014-02-28 | 2016-01-13 | 安徽复兴电缆集团有限公司 | The sensitive temperature sensing cable of a kind of renewable type |
| CN103956201A (en) * | 2014-04-02 | 2014-07-30 | 安徽复兴电缆集团有限公司 | Recoverable temperature sensing composite cable |
| CN105688356A (en) * | 2016-04-07 | 2016-06-22 | 江苏中远消防设备有限公司 | Linear detecting switch for fire site quick response temperature |
| CN105809876A (en) * | 2016-05-06 | 2016-07-27 | 青岛中阳消防科技股份有限公司 | Line type temperature-sensing detection cable |
| CN105809876B (en) * | 2016-05-06 | 2018-11-02 | 曾以若 | A kind of line type temperature-sensitive detection cable |
| EP3499474A1 (en) * | 2017-12-12 | 2019-06-19 | Airbus SAS | A fire sensor, apparatus and system |
| US11771933B2 (en) | 2017-12-12 | 2023-10-03 | Airbus Sas | Fire sensor, apparatus and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111019 Termination date: 20140418 |