CN201203924Y - Past retrieve cable type linetype temperature-sensing fire disaster detector - Google Patents
Past retrieve cable type linetype temperature-sensing fire disaster detector Download PDFInfo
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- CN201203924Y CN201203924Y CNU2008200105982U CN200820010598U CN201203924Y CN 201203924 Y CN201203924 Y CN 201203924Y CN U2008200105982 U CNU2008200105982 U CN U2008200105982U CN 200820010598 U CN200820010598 U CN 200820010598U CN 201203924 Y CN201203924 Y CN 201203924Y
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Abstract
The utility model provides a cable type linetype heat fire detector beyond retrieve, capable of implementing the function of multilevel fixed temperature alarm, different temperature alarm, different fixing temperature alarm, short circuit fault output, broken circuit fault output, power down fault output of a resistance signal processing device, by means of linking a signal processing device and a terminal resistance R to the two ends of a heat cable separately to form a closed-circuit signal collection circuit. The prominence advantage of the utility model is that before the heat cable being in short circuit, the signal processing device determines whether emitting a fire alarm signal or not, by judging whether the change of the electric signal or a change amount or change rate is more than a setting threshold; also the signal processing device can emit a plurality of fire alarm signals through setting a plurality of alarm thresholds, and emit short circuit fire alarm signals, short circuit fault alarm signals, broken circuit fault alarm signals and powerdown fault alarm signals of the signal processing device; the signal processing device also can determine whether emitting different temperature or different fixing temperature fire alarm signals based on the change rate of the electrical signal.
Description
Technical field
The utility model relates to fire alarm installation, a kind of beyond-retrieve-type cable-type line-type heat fire detector.
Technical background
A kind of irrecoverable linear temperature-sensitive detector of the prior art with the short trouble warning, application number ZL 200620133478.2 sees Fig. 1: this detector comprises the detection cable, resistance, with the resistance signal measurement mechanism, the detection cable comprises, two detecting conductors 4,5 are arranged on two semiconductor material layer 7 and fused insulating layers 6 between the detecting conductor.Infinitely great between 4,5 resistances of two detecting conductors under the normal condition, when 6 fusings of temperature rising fused insulating layer, detecting conductor 4 is reported a fire with semiconductor material layer 7 short circuits, when be heated or the external force effect under two detecting conductors, 4,5 short circuit Times short troubles.
Above-mentioned a kind of irrecoverable linear temperature-sensitive detector of reporting to the police with short trouble in use because of detector can only be exported the one-level fire alarm, is being subjected under the external force situation wrong report that also is short-circuited easily of detecting conductor 4 and semiconductor material layer 7.So, need to propose a kind of new beyond retrievable double-temperature alarm short-circuit, open circuit fault output line-type heat detector, to improve line-type heat detector reliability in use.
Summary of the invention
The purpose of this utility model provides a kind of beyond-retrieve-type cable-type line-type heat fire detector, be connected to form the closed circuit signaling Acquisition Circuit with signal processing apparatus and terminal resistance R respectively by the temperature sensing cable two ends, realize that multistage constant temperature is reported to the police, differential temperature is reported to the police, different constant temperature is reported to the police, short trouble is exported, open circuit fault is exported, the output of resistance signal treating apparatus disconnection fault.
The outstanding advantage of a kind of beyond-retrieve-type cable-type line-type heat detector of the present utility model is: signal processing apparatus judges that temperature sensing cable is before short circuit, can be by judging that electric signal changes or variable quantity or rate of change are set threshold values greater than one and confirmed whether to send fire alarm signal, can send a plurality of fire alarm signals according to setting a plurality of alarming threshold values, and send the short circuit and fire hazard alerting signal, the short trouble alerting signal, open circuit fault alerting signal and signal processing apparatus disconnection fault alerting signal can confirm whether to send differential temperature or different constant temperature fire alarm signal according to the change in electric rate.
Description of drawings
Fig. 1 is a kind of irrecoverable line-type heat detector synoptic diagram with short circuit newspaper fault of prior art.
Fig. 2 is a kind of beyond-retrieve-type cable-type line-type heat panel detector structure of the utility model synoptic diagram.
Fig. 3 is a kind of beyond-retrieve-type cable-type line-type heat detector of the utility model temperature sensing cable diagrammatic cross-section.
Embodiment
A kind of beyond-retrieve-type cable-type line-type heat detector, see Fig. 2, Fig. 3: comprise that the temperature sensing cable two ends are connected with terminal resistance R with signal processing apparatus 14 respectively, the terminal resistance resistance is preferred at 50 Ω～50M Ω, form the closed circuit signaling Acquisition Circuit, the structure that it is characterized in that temperature sensing cable, be to be that 0.1mm～2mm width 1mm～3mm Vicat softening point is that 40 ℃～180 ℃ fusible maybe can be melted insulating material barrier layer 12 by a banded thickness is set between two elastic metallic conductors 11, it is stranded or be intertwined that one shoestring barrier layer 12 is set between two elastic metallic conductors 11, it is stranded or the winding pitch is preferred between 20mm～200mm, outer extrusion molding or wrapped one deck NTC or CTR characteristic external sheath layer 13 are made temperature sensing cable.In two elastic metallic conductors 11 one coats or two coat respectively and fusiblely maybe can melt insulating material barrier layer 12, stranded again or be intertwined, stranded or be intertwined after the fusible coating that maybe can melt insulating material beyond removing between two elastic metallic conductors 11, the method of removing can be to lancinate, expose two elastic metallic conductors, 11 outer extrusion molding or wrapped one deck NTC or CTR characteristic external sheath layers 13 again, make temperature sensing cable.
The electric signal of the closed circuit acquired signal collection that described signal processing apparatus 14 and terminal resistance R form can be resistance or electric capacity or inductance or voltage or electric current or thermoelectrical potential or frequency signal.
Claims (2)
1, a kind of beyond-retrieve-type cable-type line-type heat fire detector is connected to form the closed circuit signaling Acquisition Circuit with signal processing apparatus (14) and terminal resistance R respectively by the temperature sensing cable two ends and forms, it is characterized in that: be provided with Vicat softening point between two elastic metallic conductors (11) and be 40 ℃～180 ℃ the fusible insulating material barrier layer (12) that maybe can melt, it is stranded or be intertwined that two elastic metallic conductors (11) of barrier layer (12) are set, it is stranded or the winding pitch is preferred between 20mm～200mm, outer extrusion molding or wrapped one deck NTC or CTR characteristic external sheath layer (13) are made temperature sensing cable; Or in two elastic metallic conductors (11) one or two coat respectively fusible maybe can melt insulating material barrier layer (12) after, stranded again or be intertwined, stranded or be intertwined after the fusible coating that maybe can melt insulating material beyond removing between two elastic metallic conductors (11), expose two elastic metallic conductors (11) outer extrusion molding or wrapped one deck NTC or CTR characteristic external sheath layer (13) again, make temperature sensing cable.
2, the signal of being gathered according to the closed circuit signaling Acquisition Circuit of the described a kind of beyond-retrieve-type cable-type line-type heat fire detector of claim 1 can be resistance or electric capacity or inductance or voltage or electric current or thermoelectrical potential or frequency signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200105982U CN201203924Y (en) | 2008-02-02 | 2008-02-02 | Past retrieve cable type linetype temperature-sensing fire disaster detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200105982U CN201203924Y (en) | 2008-02-02 | 2008-02-02 | Past retrieve cable type linetype temperature-sensing fire disaster detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201203924Y true CN201203924Y (en) | 2009-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200105982U Expired - Fee Related CN201203924Y (en) | 2008-02-02 | 2008-02-02 | Past retrieve cable type linetype temperature-sensing fire disaster detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201203924Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104732741A (en) * | 2015-01-28 | 2015-06-24 | 上海电控研究所 | Method and device for detecting fire alarm system based on linear flame sensor |
| CN104467536B (en) * | 2014-12-11 | 2016-09-14 | 浙江亿谷电子科技有限公司 | A kind of thermoelectric power generation chip |
| CN107545692A (en) * | 2016-06-24 | 2018-01-05 | 首安工业消防有限公司 | Beyond-retrieve-type cable-type line-type heat fire detector |
-
2008
- 2008-02-02 CN CNU2008200105982U patent/CN201203924Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104467536B (en) * | 2014-12-11 | 2016-09-14 | 浙江亿谷电子科技有限公司 | A kind of thermoelectric power generation chip |
| CN104732741A (en) * | 2015-01-28 | 2015-06-24 | 上海电控研究所 | Method and device for detecting fire alarm system based on linear flame sensor |
| CN107545692A (en) * | 2016-06-24 | 2018-01-05 | 首安工业消防有限公司 | Beyond-retrieve-type cable-type line-type heat fire detector |
| CN107545692B (en) * | 2016-06-24 | 2023-12-19 | 首安工业消防有限公司 | Unrecoverable cable type linear temperature-sensing fire disaster detector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090304 Termination date: 20130202 |