CN104198075A - Recoverable type linear temperature detecting system - Google Patents
Recoverable type linear temperature detecting system Download PDFInfo
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- CN104198075A CN104198075A CN201410424980.8A CN201410424980A CN104198075A CN 104198075 A CN104198075 A CN 104198075A CN 201410424980 A CN201410424980 A CN 201410424980A CN 104198075 A CN104198075 A CN 104198075A
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Abstract
The invention discloses a recoverable type linear temperature detecting system, comprising a plurality of detecting devices connected in parallel, wherein each detecting device comprises a temperature-sensing cable and a terminal resistor, and resistances of the terminal resistors of the detecting devices are different; each temperature-sensing cable comprises a first wire and a second wire which are mutually twisted, the first wire is connected to the corresponding terminal resistor in series at one end of the temperature-sensing cable, and the second wire is connected to a signal processing device in series at the other end of the temperature-sensing cable; the terminal resistors are connected to the signal processing device in series so as to form loops. According to the recoverable type linear temperature detecting system provided by the invention, along with raising of environmental temperature, the first and second wires are connected, the signal process device detects that electrical signals are generated in the loops, the electrical signals in different loops are distinguished by the resistances of different terminal resistors, and thereby temperature detecting areas corresponding to the detecting devices generating the electrical signals are determined.
Description
Technical field
The present invention relates to temperature detection field, relate in particular to a kind of renewable type line type temperature detection system.
Background technology
Cable type linear temperature-sensitive detector is comprised of sensitive element and coupled boxcar etc.Cable type linear temperature-sensitive detector adopts the outside coated insulation material of metallic conductor conventionally, by surveying the resistance variation with temperature of the insulating material between metallic conductor, temperature variation is carried out to high sensitivity detection.But in practical application, temperature-sensitive cable testing environment temperature exists following point, yet during due to variation of ambient temperature, the insulation resistance value of whole cable all changes, and cannot judge the concrete region of temperature anomaly, greatly reduces the degree of accuracy of detection.
Summary of the invention
For solving the technical matters existing in background technology, the present invention proposes a kind of renewable type line type temperature detection system, simple in structure, reusable, and accurately abnormal region appears in detected temperatures.
A kind of renewable type line type temperature detection system that the present invention proposes, comprising: a plurality of pick-up units, signal processing apparatus, warning device;
A plurality of pick-up units are in parallel, each pick-up unit comprises temperature-sensitive cable and terminal resistance, the terminal resistance resistance of each pick-up unit is all not identical, temp.-sensing wire cable wrap draw together two wires mutually the stranded twisted wire forming to be coated on above-mentioned twisted wire to outside restrictive coating, every wire includes and is positioned at the conductor at middle part and the insulation course that is coated on conductor outside, insulation course adopts negative temperature coefficient thermistor composition to make, temperature-sensitive cable, terminal resistance and signal processing apparatus are connected successively and are formed loop, one end series terminal resistance of a wire of temperature-sensitive cable, another root wire is away from one end series connection signal processing apparatus of terminal resistance,
Warning device is connected with signal processing apparatus;
When signal processing apparatus detects while there is electric signal in loop, according to described electric signal, determine the pick-up unit that occurs electric signal, judge that described pick-up unit regional environment temperature of living in raises, thereby notice warning device is reported to the police to above-mentioned zone temperature.
Preferably, the outside coated aluminium foil of at least one wire in temperature-sensitive cable.
Preferably, the outside coated screen layer of described restrictive coating.
In the present invention, the renewable type line type temperature detection system proposing, the pick-up unit that comprises a plurality of parallel connections, each pick-up unit comprises temperature-sensitive cable and terminal resistance, and the terminal resistance resistance of each pick-up unit is all not identical, and temp.-sensing wire cable wrap is drawn together stranded the first wire and the second wire mutually, the first wire is at one end of temperature-sensitive cable series terminal resistance, the second wire is at the other end series connection signal processing apparatus of temperature-sensitive cable, and terminal resistance is connected with signal processing apparatus, thereby forms loop.By the renewable type line type temperature detection system of above-mentioned optimal design, rising along with environment temperature, the first wire and the second wire conducting, signal processing apparatus detects and in loop, occurs electric signal, and the electric signal in different circuit is distinguished by the resistance of different terminals resistance, thereby determine the corresponding temperature detection of the pick-up unit region that generates electric signal.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of renewable type line type temperature detection system of proposing of the present invention.
Embodiment
As shown in Figure 1, Fig. 1 is the structural representation of a kind of renewable type line type temperature detection system of proposing of the present invention.
With reference to Fig. 1, a kind of renewable type line type temperature detection system that the present invention proposes, comprising: the first pick-up unit, second detection device, the 3rd pick-up unit, signal processing apparatus, warning device, and warning device is connected with signal processing apparatus;
The first pick-up unit, second detection device and the 3rd pick-up unit are in parallel, the first pick-up unit is arranged in the first surveyed area, the first pick-up unit comprises the first temperature-sensitive cable and first terminal resistance, the first temp.-sensing wire cable wrap is drawn together the first wire and mutual stranded the first twisted wire pair forming of the second wire, be coated on first restrictive coating of the first twisted wire to outside, be coated on the first screen layer of the first restrictive coating outside, the first wire comprises the first conductor in the middle part of being positioned at and the first insulation course and the first aluminium foil layer that is coated on successively the first conductor outside, the second wire comprises the second conductor in the middle part of being positioned at and the second insulation course and the second aluminium foil layer that is coated on the second conductor outside, the first insulation course and the second insulation course all adopt negative temperature coefficient thermistor composition to make, one end series connection first terminal resistance of the first wire, the second wire is away from one end series connection signal processing apparatus of first terminal resistance, first terminal resistance is connected with signal processing apparatus, thereby form the first loop, second detection device is arranged in the second surveyed area, the second temp.-sensing wire cable wrap is drawn together privates and mutual stranded the second twisted wire pair forming of privates, be coated on second restrictive coating of the second twisted wire to outside, be coated on the secondary shielding layer of the second restrictive coating outside, privates comprises the 3rd conductor in the middle part of being positioned at and the 3rd insulation course and the 3rd aluminium foil layer that is coated on the 3rd conductor outside, privates comprise the 4th conductor in the middle part of being positioned at and the 4th insulation course and the 4th aluminium foil layer that is coated on the 4th conductor outside, the 3rd insulation course and the 4th insulation course all adopt negative temperature coefficient thermistor composition to make, one end of privates second terminal resistance of connecting, privates are away from one end series connection signal processing apparatus of the second terminal resistance, the second terminal resistance is connected with signal processing apparatus, thereby formation second servo loop, the 3rd pick-up unit is arranged in the 3rd surveyed area, the 3rd temp.-sensing wire cable wrap is drawn together the 5th wire and mutual stranded the 3rd twisted wire pair forming of the 6th wire, be coated on three restrictive coating of the 3rd twisted wire to outside, be coated on the 3rd screen layer of the 3rd restrictive coating outside, the 5th wire comprises the 5th conductor in the middle part of being positioned at and the 5th insulation course and the 5th aluminium foil layer that is coated on the 5th conductor outside, the 6th wire comprises the 6th conductor in the middle part of being positioned at and the 6th insulation course and the 6th aluminium foil layer that is coated on the 6th conductor outside, the 5th insulation course and the 6th insulation course all adopt negative temperature coefficient thermistor composition to make, one end series connection third terminal resistance of the 5th wire, the 6th wire is away from one end series connection signal processing apparatus of third terminal resistance, third terminal resistance is connected with signal processing apparatus, thereby formation tertiary circuit, wherein, first terminal resistance, the second terminal resistance and third terminal resistance are all not identical.
In the detailed process of the renewable type line type temperature detection system detected temperatures of the present embodiment, when signal processing apparatus detects while there is electric signal in loop, according to the value of this electric signal, determine the pick-up unit that produces electric signal, when the value of detected electric signal and the resistance of first terminal resistance are when associated, judge between the first wire in the first pick-up unit and the second wire and be electrically connected to, residing the first surveyed area environment temperature of the first pick-up unit raises, then notify warning device to send the alarm of the first surveyed area temperature anomaly, when staff gets rid of dangerous that environment temperature raises, insulation course resistance in temperature-sensitive cable is recovered, reusable, equally, when the value of detected electric signal and the resistance of the second terminal resistance are when associated, judge that residing the second surveyed area environment temperature of second detection device raises, when the value of detected electric signal and the resistance of third terminal resistance are when associated, judge that residing the 3rd surveyed area environment temperature of the 3rd pick-up unit raises, and can accurately detect thereby realize the region that occurs temperature anomaly repeatedly.
In the present embodiment, the renewable type line type temperature detection system proposing, the pick-up unit that comprises a plurality of parallel connections, each pick-up unit comprises temperature-sensitive cable and terminal resistance, and the terminal resistance resistance of each pick-up unit is all not identical, and temp.-sensing wire cable wrap is drawn together stranded the first wire and the second wire mutually, the first wire is at one end of temperature-sensitive cable series terminal resistance, the second wire is at the other end series connection signal processing apparatus of temperature-sensitive cable, and terminal resistance is connected with signal processing apparatus, thereby forms loop.By the renewable type line type temperature detection system of above-mentioned optimal design, rising along with environment temperature, the first wire and the second wire conducting, signal processing apparatus detects and in loop, occurs electric signal, and the electric signal in different circuit is distinguished by the resistance of different terminals resistance, thereby determine the corresponding temperature detection of the pick-up unit region that generates electric signal.
In embodiment, the outside coated aluminium foil of at least one wire in every temperature-sensitive cable, improves heat-conducting effect, thereby improves the sensitivity of detection system.
In every temperature-sensitive cable, be provided with screen layer, improved the anti-electromagnetic interference performance of cable, thereby improve the alarm reliability of detection system.
The above; it is only preferably embodiment of the present invention; but protection scope of the present invention is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; according to technical scheme of the present invention and inventive concept thereof, be equal to replacement or changed, within all should being encompassed in protection scope of the present invention.
Claims (3)
1. a renewable type line type temperature detection system, is characterized in that, comprising: a plurality of pick-up units, signal processing apparatus, warning device;
A plurality of pick-up units are in parallel, each pick-up unit comprises temperature-sensitive cable and terminal resistance, the terminal resistance resistance of each pick-up unit is all not identical, temp.-sensing wire cable wrap draw together two wires mutually the stranded twisted wire forming to be coated on above-mentioned twisted wire to outside restrictive coating, every wire includes and is positioned at the conductor at middle part and the insulation course that is coated on conductor outside, insulation course adopts negative temperature coefficient thermistor composition to make, temperature-sensitive cable, terminal resistance and signal processing apparatus are connected successively and are formed loop, one end series terminal resistance of a wire of temperature-sensitive cable, another root wire is away from one end series connection signal processing apparatus of terminal resistance,
Warning device is connected with signal processing apparatus;
When signal processing apparatus detects while there is electric signal in loop, according to described electric signal, determine the pick-up unit that occurs electric signal, judge that described pick-up unit regional environment temperature of living in raises, thereby notice warning device is reported to the police to above-mentioned zone temperature.
2. renewable type line type temperature detection system according to claim 1, is characterized in that, the outside coated aluminium foil of at least one wire in temperature-sensitive cable.
3. renewable type line type temperature detection system according to claim 1, is characterized in that, the outside coated screen layer of described restrictive coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410424980.8A CN104198075A (en) | 2014-08-26 | 2014-08-26 | Recoverable type linear temperature detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410424980.8A CN104198075A (en) | 2014-08-26 | 2014-08-26 | Recoverable type linear temperature detecting system |
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| Publication Number | Publication Date |
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| CN104198075A true CN104198075A (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410424980.8A Pending CN104198075A (en) | 2014-08-26 | 2014-08-26 | Recoverable type linear temperature detecting system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111886484A (en) * | 2018-03-13 | 2020-11-03 | 莱尼电缆有限公司 | Sensor cable and measuring device |
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| CN101162622A (en) * | 2007-10-30 | 2008-04-16 | 李明斌 | Electrical cable for military industry equipment |
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| CN202363150U (en) * | 2011-11-28 | 2012-08-01 | 太原斯利德电子技术有限公司 | Shielding cable |
| CN103277674A (en) * | 2013-05-16 | 2013-09-04 | 南京航空航天大学 | System and method for detecting overheated position of pipeline |
| CN103366903A (en) * | 2013-07-12 | 2013-10-23 | 张家港特恩驰电缆有限公司 | Aluminum foil wrapping mould and wrapping method thereof |
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| CN101105885A (en) * | 2007-08-07 | 2008-01-16 | 张陈 | Recoverable cable type linear temperature-sensing detector |
| CN101162622A (en) * | 2007-10-30 | 2008-04-16 | 李明斌 | Electrical cable for military industry equipment |
| CN101216979A (en) * | 2007-12-26 | 2008-07-09 | 张陈 | A restorable multistage alarming line style heat detector based on bimetal temperature switch |
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| CN103277674A (en) * | 2013-05-16 | 2013-09-04 | 南京航空航天大学 | System and method for detecting overheated position of pipeline |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111886484A (en) * | 2018-03-13 | 2020-11-03 | 莱尼电缆有限公司 | Sensor cable and measuring device |
| US11874181B2 (en) | 2018-03-13 | 2024-01-16 | Leoni Kabel Gmbh | Sensor line and measuring assembly |
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Application publication date: 20141210 |