CN101136128A - Beyond retrieve type single temperature alarming functional failure output linetype temperature-sensitive detector - Google Patents
Beyond retrieve type single temperature alarming functional failure output linetype temperature-sensitive detector Download PDFInfo
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- CN101136128A CN101136128A CNA2007101575218A CN200710157521A CN101136128A CN 101136128 A CN101136128 A CN 101136128A CN A2007101575218 A CNA2007101575218 A CN A2007101575218A CN 200710157521 A CN200710157521 A CN 200710157521A CN 101136128 A CN101136128 A CN 101136128A
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Abstract
The invention relates to a single-temperature fault-alarming outputting line-type heat-sensing detector which can not be restored. The detector comprises a heat-sensing cable two ends of which are respectively connected with a resistance signal processing device and a terminal resistance whose value is optimized between 50omega-50Momega to form a resistance signal connection circuit. It is characterized by the two elastic metal connectors of the heat-sensing cable, in which one connector is coated with insulation material layer and the other is coated with semi-conductor material layer. The two connectors are intertwisted or wound together in a pitch optimized between 20mm-200mm. In the resistance signal processing device are set with three signal starting resistance values of resistance change quantity. The resistance signal processing device judges and outputs set-temperature alarming signals, short circuit fault signals and broken circuit fault signals.
Description
Technical field
The present invention relates to fire alarm installation, a kind of beyond retrievable list temperature alarm failure output line-type heat detector.
Technical background
A kind of short-circuit alarming method that is used for irrecoverable linear temperature-sensitive detector of the prior art, application number ZL200610130417.5 sees Fig. 1: comprise the stage that is short-circuited on the linear temperature sensor; Boxcar is judged the stage that whether its detected electrical quantity (or sampled value) changes in official hour; (or sampled value) do not change if judged result is electrical quantity, and boxcar sends the short trouble alerting signal and carries out the stage that short trouble is reported to the police; (or sampled value) changes if judged result is electrical quantity, and boxcar will send the short circuit and fire hazard alerting signal and carry out the stage that short circuit and fire hazard is reported to the police when electrical quantity (or sampled value) reaches the alarm threshold value of setting.Whether detected electrical quantity changing value of boxcar or rate of change changed and send short trouble and the short circuit and fire hazard two kinds of signals of reporting to the police respectively when the short-circuit alarming method that is used for irrecoverable linear temperature-sensitive detector provided by the invention can be according to short circuit.
The short-circuit alarming method of above-mentioned irrecoverable linear temperature-sensitive detector in use, fault alarm and short circuit and fire hazard are reported to the police because of being short-circuited on the linear temperature sensor, be a shared at one time short dot, cause misjudgment easily or fail to report fire alarm, open circuit fault can not be provided.So, need to propose a kind of new renewable type cable formula heat fire detector.
Summary of the invention
The purpose of this invention is to provide a kind of beyond retrievable list temperature alarm failure output line-type heat detector, realize that constant temperature is reported to the police, short trouble output, open circuit fault output.
A kind of beyond retrievable list temperature alarm failure output line-type heat detector is connected to form the closed circuit signaling Acquisition Circuit with resistance signal treating apparatus and terminal resistance respectively by the temperature sensing cable two ends, and terminal resistance R resistance value is preferred at 50 Ω～50M Ω.The structure that it is characterized in that temperature sensing cable is two elastic metallic conductors, and wherein one coats semiconductor material layer; Another root coated insulation material layer, two cores that different clads are arranged are stranded together or twine, and it is stranded or to twine pitch preferred between 20mm～200mm, then extrusion molding external sheath layer together.In the resistance signal treating apparatus, be provided with three Standard resistance range variable quantity signal enabling resistances, resistance quantitative changeization between two elastic metallic conductors of resistance signal treating apparatus monitoring, when temperature sensing cable is heated, the elastic conductor of coated insulation material layer contacts with the coating semiconductor material layer of another root elastic conductor, this Standard resistance range of semiconductor material layer is then judged output constant temperature alerting signal by the resistance signal treating apparatus; Short circuit between two elastic metallic conductors, this Standard resistance range of short circuit between two elastic metallic conductors, then judge the output short-circuit fault-signal by the resistance signal treating apparatus, when two elastic metallic conductors wherein one open circuit, this Standard resistance range of two elastic metallic conductors is then judged output open circuit fault signal by the resistance signal treating apparatus.
The outstanding advantage of this beyond retrievable list temperature alarm failure output line-type heat detector is: can be by change in resistance output constant temperature alerting signal, short trouble signal, the open circuit fault signal between two elastic conductors of resistance signal treating apparatus judgement, accurately and reliably, and the use length of temperature sensing cable unrestricted.
When the temperature sensing cable temperature surpasses setting value, send the constant temperature alerting signal by the resistance signal treating apparatus.The constant temperature alarm temperature is 60 ℃, 70 ℃, 85 ℃, 105 ℃, 138 ℃, 180 ℃ six grades.Can produce the series of products that are suitable for wide temperature range by the environment for use temperature requirement.The product quality reliability height, cost is low, temperature-sensitive warning sensitivity height.
Description of drawings
Fig. 1 is a kind of short-circuit alarming method synoptic diagram that is used for irrecoverable linear temperature-sensitive detector of prior art;
Fig. 2 is a kind of beyond retrievable list of the present invention temperature alarm failure output line-type heat detector example 1 structural representation;
Fig. 3 is a kind of beyond retrievable list of the present invention temperature alarm failure output line-type heat detector example 2 structural representations;
Fig. 4 is a kind of beyond retrievable list of the present invention temperature alarm failure output line-type heat detector example 3 structural representations;
Fig. 5 is a kind of beyond retrievable list of the present invention temperature alarm failure output line-type heat detector example 4 structural representations;
Fig. 6 is a kind of beyond retrievable list of the present invention temperature alarm failure output line-type heat detector example 5 structural representations;
Fig. 7 is the schematic flow sheet of a kind of beyond retrievable list of the present invention temperature alarm failure output line-type heat detector warning function.
Embodiment
A kind of beyond retrievable list temperature alarm failure output line-type heat detector, example 1 is seen Fig. 2: comprise that the temperature sensing cable two ends are connected with terminal resistance R27 with resistance signal treating apparatus 28 respectively, terminal resistance R resistance value is preferred at 50 Ω～50M Ω, form closed circuit resistance signal Acquisition Circuit, two elastic metallic conductors 21 that it is characterized in that temperature sensing cable, conductor 21 coated insulation materials 22 wherein, another root conductor 21 coats semiconductor material layer 23, two line bodies that the different materials clad is arranged, stranded or be intertwined, it is stranded or the winding pitch is preferred between 20mm～200mm, makes beyond retrievable list temperature alarm failure output temperature sensing cable.
The warning function principle is seen Fig. 7, be heated according to temperature sensing cable and in resistance signal treating apparatus 28, be provided with three Standard resistance range variable quantity signal enabling resistances, resistance quantitative changeization between two elastic metallic conductors 21 of resistance signal treating apparatus 28 monitorings, when temperature sensing cable is heated and surpass a design temperature, coat the softening or fusing of identical or different fusing point insulation material layer, under the elastic force effect of elastic metallic conductor 21, the elastic metallic conductor 21 of coated insulation material layer exposes, the elastic metallic conductor 21 that exposes contacts with the semiconductor material clad 23 of another root elastic metallic conductor, this Standard resistance range of semiconductor material layer 23 is then judged output constant temperature alerting signal by resistance signal treating apparatus 28; Short circuit between two elastic metallic conductors 21, this Standard resistance range of short circuit between two elastic metallic conductors 21, then judge the output short-circuit fault-signal by resistance signal treating apparatus 28, when two elastic metallic conductors 21 wherein one open circuit, this Standard resistance range of two elastic metallic conductors 21 is then judged output open circuit fault signal by resistance signal treating apparatus 28.
2 one kinds of beyond retrievable lists of embodiment temperature alarm failure output line-type heat detector is characterized in that the structure of temperature sensing cable, see Fig. 3: two elastic metallic conductor 21 difference coated insulation material layers 22, two line body therebetween semiconductor tapes 26 that identical clad is arranged, stranded or be intertwined.
3 one kinds of beyond retrievable lists of embodiment temperature alarm failure output line-type heat detector is characterized in that the structure of temperature sensing cable, see Fig. 4: elastic metallic conductor 21 coated insulation material layers 22, another root elastic metallic conductor 21 no clads, two line body therebetween semiconductor tapes 26, stranded then or be intertwined.
4 one kinds of beyond retrievable lists of embodiment temperature alarm failure output line-type heat detector is characterized in that the structure of temperature sensing cable, see Fig. 5: coat semiconductor material layer 23 again behind the elastic metallic conductor 21 coated insulation material layers 22, then directly and another root elastic metallic conductor 21 stranded or be intertwined.
5 one kinds of beyond retrievable lists of embodiment temperature alarm failure output line-type heat detector is characterized in that the structure of temperature sensing cable, see Fig. 6: elastic metallic conductor 21 coats behind the semiconductor material layers 23 the coated insulation material layer 22 again, then directly and another root elastic metallic conductor 21 stranded or be intertwined.
Be provided with insulation material layer 22 and semiconductor material layer 23 or be provided with insulation material layer 22, semiconductor material layer 23 and insulation material layer 22 between two elastic metallic conductors 21 in the foregoing description 1～embodiment 5 structures.
Outer extrusion molding again of the foregoing description 1～embodiment 5 structures or wrapped external sheath layer 24 or braiding external sheath layer 30.
The foregoing description 1～embodiment 5 structures also can coat one deck screen layer 25 outward, and then extrusion molding or wrapped external sheath layer 24.
The foregoing description 1～embodiment 5 structures also can coat one deck para tape 29 outward, and then extrusion molding or wrapped external sheath layer 24 or braiding external sheath layer 30.
Two elastic metallic conductors 21 of the foregoing description 1～embodiment 5 can be with a kind of material, also can be two kinds of unlike materials.
The material that conductor of the present invention, conductor clad are adopted and the behavioral illustrations of coating layer material:
1. insulation material layer (versatile material):
Insulation material layer: select the performance of insulating material to be: Vicat softening point is 40 ℃～180 ℃, and specific insulation is 10
10～10
20All plastics of Qcm, elastomeric material.
2. elastic metallic conductor: specification is selected for use between Φ 0.2～3.0mm.
Material can be selected the alloy material of steel wire, copper cash, iron wire, nickel wire, platinum line, stainless steel, memorial alloy line and above-mentioned material for use, wire external layer or zinc-plated, zinc-plated, copper facing, silver-plated, chromium plating, nickel plating.Because of metal wire rod has certain intensity and elasticity after being subjected to stretch, extending or being heated, so be called the elastic metallic conductor.
3, semiconductor material layer (versatile material): adopt specific volume resistance 10
-2～10
9All plastics, rubber, lacquer, ceramic semiconductors material or above-mentioned material with NTC characteristic, CTR characteristic, ptc characteristics also can be all plastics, rubber, lacquer, the ceramic semiconductors materials with NTC characteristic.
4, semiconductor tape (versatile material): specific volume resistance is 10
-2～10
9Between all plastics, rubber, fiber make band material, or above-mentionedly have NTC, CTR, a ptc characteristics material.Thickness is to select for use between 0.01～1.0mm, and width is preferred between 2～20mm.
5, extrusion molding external sheath layer (versatile material): material can be high molecular polymer insulating material or PTC, NTC, CTR characteristic macromolecule polymer material, also can be the semiconductor macromolecule polymer material.The thickness of extrusion molding restrictive coating is selected between 0.1～2.0mm.
6, screen layer (versatile material): material can be plastic-aluminum or compound copper-plastics band or metal forming, and thickness is to select for use between 0.01～1.0mm, and width is preferred between 2～20m.
7, braiding external sheath layer (versatile material): material can be all plastics, metal monofilament, and the line footpath is selected for use between Φ 0.01～1.0mm.
8, para tape (versatile material): material can be all plastics, and thickness is to select for use between 0.01～1.0mm, and width is preferred between 2～20mm.
Claims (8)
1. a beyond retrievable list temperature alarm failure is exported line-type heat detector, comprise that the temperature sensing cable two ends are connected with terminal resistance (27) with resistance signal treating apparatus (28) respectively, terminal resistance (27) resistance value is preferred at 50 Ω～50M Ω, form closed circuit resistance signal Acquisition Circuit, the two elastic metallic conductors (21) that it is characterized in that temperature sensing cable, a conductor (21) coated insulation material (22) wherein, another root conductor (21) coats semiconductor material layer (23), two line bodies that the different materials clad is arranged, stranded or be intertwined, it is stranded or the winding pitch is preferred between 20mm～200mm, makes beyond retrievable list temperature alarm failure output temperature sensing cable.Being heated according to temperature sensing cable is provided with three Standard resistance range variable quantity signal enabling resistances in resistance signal treating apparatus (28), the resistance signal treating apparatus is judged output constant temperature alerting signal, short trouble signal, open circuit fault signal.
2. a kind of beyond retrievable list temperature alarm failure output line-type heat detector according to claim 1, it is characterized in that the temperature sensing cable structure can also be: coat semiconductor material layer (23) by an elastic metallic conductor (21), another root elastic metallic conductor (21) coated insulation material layer (22), two line bodies that different clads are arranged, stranded or be intertwined.
3. a kind of beyond retrievable list temperature alarm failure output line-type heat detector according to claim 1, it is characterized in that the temperature sensing cable structure can also be: by two elastic metallic conductors (21) difference coated insulation material layer (22), two line body therebetween semiconductor tapes (26) that identical clad is arranged, stranded then or be intertwined.
4. a kind of beyond retrievable list temperature alarm failure output line-type heat detector according to claim 1, it is characterized in that the temperature sensing cable structure can also be: coated insulation material layer (22) again after coating semiconductor material layer (23) behind an elastic metallic conductor (21) the coated insulation material layer (22) again or coating earlier semiconductor material layer (23), then directly and another root elastic metallic conductor (21) stranded or be intertwined.
5. a kind of beyond retrievable list temperature alarm failure output line-type heat detector according to claim 1 is characterized in that being provided with between two elastic metallic conductors (21) in the temperature sensing cable structure insulation material layer (22) and semiconductor material layer (23) or is provided with insulation material layer (22), semiconductor material layer (23) and insulation material layer (22).
6. a kind of beyond retrievable list temperature alarm failure output line-type heat detector according to claim 1 is characterized in that two elastic metallic conductors (21) of temperature sensing cable can be with a kind of material, also can be two kinds of unlike materials.
7. export line-type heat detector according to claim 1 to the described a kind of beyond retrievable list temperature alarm failure of claim 5, it is characterized in that outer extrusion molding again of temperature sensing cable structure or wrapped external sheath layer (24) or braiding external sheath layer (30); Also can coat behind one deck para tape (29) extrusion molding or wrapped external sheath layer (24) or braiding external sheath layer (30) again.
8. export line-type heat detector according to claim 1 to the described a kind of beyond retrievable list temperature alarm failure of claim 5, it is characterized in that the temperature sensing cable structure also can coat one deck screen layer (25) outward, and then extrusion molding or wrapped external sheath layer (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101575218A CN101136128A (en) | 2007-10-17 | 2007-10-17 | Beyond retrieve type single temperature alarming functional failure output linetype temperature-sensitive detector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101575218A CN101136128A (en) | 2007-10-17 | 2007-10-17 | Beyond retrieve type single temperature alarming functional failure output linetype temperature-sensitive detector |
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| CN101136128A true CN101136128A (en) | 2008-03-05 |
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| CNA2007101575218A Pending CN101136128A (en) | 2007-10-17 | 2007-10-17 | Beyond retrieve type single temperature alarming functional failure output linetype temperature-sensitive detector |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107481468A (en) * | 2016-06-08 | 2017-12-15 | 青岛中阳消防科技股份有限公司 | A kind of irrecoverable line-type heat detector |
-
2007
- 2007-10-17 CN CNA2007101575218A patent/CN101136128A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107481468A (en) * | 2016-06-08 | 2017-12-15 | 青岛中阳消防科技股份有限公司 | A kind of irrecoverable line-type heat detector |
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