CN103198603A - Temperature variation alarm line of coaxial structure - Google Patents
Temperature variation alarm line of coaxial structure Download PDFInfo
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- CN103198603A CN103198603A CN2013101031093A CN201310103109A CN103198603A CN 103198603 A CN103198603 A CN 103198603A CN 2013101031093 A CN2013101031093 A CN 2013101031093A CN 201310103109 A CN201310103109 A CN 201310103109A CN 103198603 A CN103198603 A CN 103198603A
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Abstract
Provided is a temperature variation alarm line of a coaxial structure. A microcomputer modulator is connected with the alarm line and terminal resistors. The temperature variation alarm line of the coaxial structure is characterized in that the structure of the alarm line includes the fact that three or four conductors are arranged coaxially, a wrapping layer sequentially wraps a first NTC characteristic material layer, a second conductor, a second NTC characteristic material layer, a third conductor, and an outer sheath layer from a first conductor at an axis center, the first conductor and the second conductor form a first return circuit and are provided with a first terminal resistor, the second conductor and the third conductor form a second return circuit and are provided with a second terminal resistor, and the microcomputer modulator collects absolute values of electric parametric variation value differences at a certain moment of the two return circuits; when the heating rate of the environment temperature of the alarm line is less than 10 DEG C per minute, the alarm line is in a normal monitoring state; and when the environment temperature of the alarm line reaches or exceeds 10 DEG C per minute, the absolute values of the electric parametric variation value differences of the two return circuits are larger than or equal to a preset alarm threshold value, differential temperature is modulated and outputted by a microcomputer which can also have an alarm signal of a constant temperature. The temperature variation alarm line is not limited by a using length, the environment temperature and a heating length, and can be reused.
Description
Technical field
The present invention relates to fire alarm installation, a kind of temperature variation alarming line of coaxial configuration.
Technical background
Analog linear temperature-sensing detector of the prior art, it is a kind of broad-spectrum fire detector, shown in the accompanying drawing 3, Chinese patent application number: 200510134667.1, the alarm method of a kind of composite line type temperature sensing fire detector and data fusion thereof, by a linear temperature sensor A,, a linear temperature sensor B, the electric signal measurement device constitutes, described linear temperature sensor A, linear temperature sensor B is set together, described linear temperature sensor A, linear temperature sensor B respectively has at least one and surveys body and two electrical quantity signal output terminals, and described electrical quantity signal output terminal is electrically connected with the electric signal measurement device respectively; Described linear temperature sensor A, linear temperature sensor B output to the electrical quantity signal inequivalence of electric signal measurement device, and can reduce the rate of false alarm of detector effectively.
This technical disadvantages is:
1, this technology private prosecution can only reduce the rate of false alarm of detector effectively.
2, must try to achieve a functional value in this moment by the function of two electrical quantitys, value and a predetermined value of trying to achieve be compared again, determine fire, the decision logic relation is complicated, poor operability.
3, this detector electric signal measurement device, must a large amount of electrical quantity a of input storage and the corresponding data of electrical quantity b, described corresponding data and detector use be heated time of length variations and electrical quantity variation of length variations, detector environment for use temperature variation, detector to advance relevant.Therefore a large amount of electrical quantity of electric signal measurement device input storage need be obtained by a large amount of simulated experiments, work loaded down with trivial details and accurately certain, causes easily reporting by mistake and failing to report.Therefore, need a kind of judgement relation simple, do not used effect length, be not subjected to environment temperature and influence of temperature change, the detector of the effect length of not being heated.
Summary of the invention
The temperature variation alarming line that the purpose of this invention is to provide a kind of coaxial configuration can overcome above-mentioned like product defective, will not used length, environment temperature and the length restriction of being heated fully, and reusable.
A kind of temperature variation alarming line of coaxial configuration, microcomputer modulator is connected with terminal resistance with the temperature variation alarming line, it is characterized in that temperature variation alarming line structure: three or four coaxial settings of conductor, clad coats a NTC characteristic material layer outward successively by axle center first conductor, coat second conductor, coat the 2nd NTC characteristic material layer, coat the 3rd conductor, external sheath layer, first conductor and second conductor connect and compose first loop and establish first terminal resistance in the temperature variation alarming line, second conductor and the 3rd conductor connect and compose second loop and establish second terminal resistance, and the real-time collecting temperature of microcomputer modulator changes the absolute value of the electrical quantity variation value difference in two a certain moment of loop of alarming line; When the heating rate of temperature variation alarming line environment temperature during less than 10 ℃/min, the absolute value that the electrical quantity in two loops changes value difference is the normal monitoring state during less than the alarming threshold value that presets; When the environment temperature heating rate meets or exceeds 10 ℃/min, the absolute value that the electrical quantity that microcomputer modulator is gathered two loops changes value difference is during more than or equal to predetermined alarming threshold value, microcomputer modulation output differential temperature alerting signal, and go out the constant temperature alerting signal also can change more than or equal to predetermined alarming threshold value according to the electrical parameter values in two loops the time.
The temperature variation alarming line of a kind of coaxial configuration of the present invention compared with prior art has following advantage:
1, be not subjected to the temperature variation alarming line to use the restriction of length and environment temperature fully.
2, differential temperature is reported to the police irrelevant with the temperature variation alarming line length of being heated.
3, only consider that the electrical quantity in two a certain moment of loop changes the absolute value of value difference, whether when presetting alarming threshold value, be, microcomputer modulation output differential temperature alerting signal, not, the microcomputer modulation is in the normal monitoring duty.
Can realize that by simple calculating differential temperature reports to the police, thereby reduce because of wrong report that complicated deterministic process produces, fail to report, further improve accuracy and the reliability of reporting to the police again.
Temperature variation alarming line of the present invention can arrange differential temperature warning heating rate: response in 10 ℃/min(20s～140s), response in 20 ℃/min(22.5s～90s), response in 30 ℃/min(15s～60s), be suitable for wider temperature range, be particularly useful for fire temperature rise ratio place faster.The product quality reliability height, cost is low, and temperature-sensitive warning sensitivity height can satisfy the performance requirement of GB16280-2005 " line-type heat detector " and supplementary provision.This temperature variation alarming line is reusable.
Description of drawings
Fig. 1～Fig. 2 is the structural representation of two embodiment of coaxial configuration temperature variation alarming line of the present invention;
Fig. 3 discloses 200510104904.X, and a kind of double-criterion simulation quantity linear temperature-sensitive five fire is visited the cable structure synoptic diagram;
Embodiment
A kind of temperature variation alarming line of coaxial configuration, example 1 is seen Fig. 1, connected to form with temperature variation alarming line and terminal resistance R1, R2 by microcomputer modulator 7, described temperature variation alarming line is to be coated NTC characteristic material layer 2 successively, coat banded second conductor 3, coat NTC characteristic material layer 4, coat banded the 3rd conductor 5, coated external sheath layer 6 by first conductor 1, the temperature variation alarming line can constitute first loop and establish the first terminal resistance R1 by first conductor 1 and second conductor 3, and second conductor 3 and the 3rd conductor 4 constitute second loop and establish the second terminal resistance R2; Because the temperature variation alarming line is coaxial configuration, as if two loops of ectonexine be heated simultaneously, the electrical quantity in two loops changes simultaneously, microcomputer modulator 7 real-time collecting temperatures change two a certain moment of loop of alarming line, electrical quantity changes the absolute value of value difference, when the heating rate of temperature variation alarming line environment temperature during less than 10 ℃/min, the absolute value that two loop electrical quantitys change value differences is the normal monitoring state less than the alarming threshold value that presets.When heating rate meets or exceeds 10 ℃/min, because the temperature variation alarming line is heated comparatively fast by outer field second loop, electrical quantity changes the electrical quantity that is greater than internal layer first loop and changes, the absolute value that changes value difference when the electrical quantity in two loops of microcomputer modulator collection is when presetting alarming threshold value, microcomputer modulation output differential temperature alerting signal realizes the differential temperature warning.Microcomputer modulation simultaneously detects the variable quantity of the electrical parameter values in two loops in real time, and according to microcomputer modulator pre-stored constant temperature alarming threshold value, the realization constant temperature is reported to the police.Embodiment 2, a kind of temperature variation alarming line of coaxial configuration, see Fig. 2, the structure that it is characterized in that temperature variation alarming line in the detector is to be coated a NTC characteristic material layer 2, banded second conductor 3 of coating, coated insulation material layer 8 successively, coat banded the 4th conductor 9, coat the 2nd NTC characteristic material layer 4, coat band shape the 3rd conductor 5, coated external sheath layer 6 by first conductor 1.The temperature variation alarming line constitutes first loop by first conductor 1 and second conductor 3, establishes the first terminal resistance R1 simultaneously; The 4th conductor 9 and the 3rd conductor 5 constitute second loop, establish the second terminal resistance R2 simultaneously.
The principle of work of embodiment 2 is identical with embodiment 1.Described electrical quantity signal can be the sampled value of conversions such as voltage, resistance, electric current, thermoelectrical potential, electric capacity.Described electrical quantity changes the absolute value of value difference, is to deduct a loop sampled value with the second loop sampled value.
Material of the present invention and behavioral illustrations:
1, metallic conductor 1: specification is selected for use between Ф 0.5～1.0mm.
Material can be selected steel wire, copper cash, iron wire, stainless steel wire and all tinsels for use.
2, NTC characteristic material layer:
Select the performance of material to be; According to all plastics, elastomeric material that NTC or CTR characteristic are arranged.
3, insulation material layer: PE, PP, PET para tape, thickness can be selected for use between 0.01～1.0mm, and width is preferred between 5mm-20mm.Can use PE, PP, PET insulated particle extrusion molding to coat.
4, coated insulation material layer 8 can be by lapped insulation band or extrusion molding insulating material processing and fabricating.
5, external sheath layer: material can be insulating material such as high molecular polymer PE, PP, PET, PWC.The thickness of extrusion molding restrictive coating is selected between 0.1～0.6mm.
6, tape conductor: aluminium-plastic tape or metal forming, thickness can be selected for use between 0.01～0.2mm, and width is preferred between 5mm-20mm.Aluminium-plastic tape is that levels is metal level, and the centre is plastic layer, or one deck plastics layer of metal.
This temperature variation alarming line is reusable.
Claims (3)
1. the temperature variation alarming line of a coaxial configuration, microcomputer modulator is connected with terminal resistance with the temperature variation alarming line, it is characterized in that temperature variation alarming line structure: three or four coaxial settings of conductor, clad coats a NTC characteristic material layer outward successively by axle center first conductor, coat second conductor, coat the 2nd NTC characteristic material layer, coat the 3rd conductor, external sheath layer, first conductor and second conductor connect and compose first loop and establish first terminal resistance in the temperature variation alarming line, second conductor and the 3rd conductor connect and compose second loop and establish second terminal resistance, and the real-time collecting temperature of microcomputer modulator changes the absolute value of the electrical quantity variation value difference in two a certain moment of loop of alarming line; When the heating rate of temperature variation alarming line environment temperature during less than 10 ℃/min, the absolute value that the electrical quantity in two loops changes value difference is the normal monitoring state during less than the alarming threshold value that presets; When the environment temperature heating rate meets or exceeds 10 ℃/min, the absolute value that the electrical quantity that microcomputer modulator is gathered two loops changes value difference is during more than or equal to predetermined alarming threshold value, microcomputer modulation output differential temperature alerting signal, and go out the constant temperature alerting signal also can change more than or equal to predetermined alarming threshold value according to the electrical parameter values in two loops the time.
2. the temperature variation alarming line of a kind of coaxial configuration according to claim 1, the another kind of structure that it is characterized in that the temperature variation alarming line: four coaxial settings of conductor, clad is by the outer NTC characteristic material layer (2) that coats successively of first conductor (1), coat banded second conductor (3), coated insulation material layer (8), coat banded the 4th conductor (9), coat the 2nd NTC characteristic material layer (4), coat banded the 3rd conductor (5) and external sheath layer (6), first conductor (1) connects and composes first loop with second conductor (3) in the temperature variation alarming line, and the 4th conductor (9) connects and composes second loop with the 3rd conductor (5); The first terminal resistance R1 is also established in first loop, and the second terminal resistance R2 is also established in second loop.
3. the temperature variation alarming line of a kind of coaxial configuration according to claim 1 and 2 is characterized in that the electrical quantity signal can be the sampled value of voltage, resistance, electric capacity, electric current or thermoelectrical potential conversion; Described electrical quantity changes the absolute value of value difference, is to deduct a loop sampled value with the second loop sampled value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310103109.3A CN103198603B (en) | 2013-03-27 | 2013-03-27 | A kind of temperature variation alarm line of coaxial configuration |
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| CN201310103109.3A CN103198603B (en) | 2013-03-27 | 2013-03-27 | A kind of temperature variation alarm line of coaxial configuration |
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| CN103198603A true CN103198603A (en) | 2013-07-10 |
| CN103198603B CN103198603B (en) | 2016-01-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104616806A (en) * | 2014-12-30 | 2015-05-13 | 北京无线电计量测试研究所 | Low-thermal electromotive force cable |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1987944A (en) * | 2005-12-19 | 2007-06-27 | 李刚进 | Composite line type temperature sensing fire detector and its data fusing warning method |
| CN101290703A (en) * | 2008-05-15 | 2008-10-22 | 张陈 | Multi-loop sectional monitoring temperature-sensing electrical signal cable type linear temperature-sensitive detector |
| US20090059998A1 (en) * | 2007-08-27 | 2009-03-05 | Billy Hou | Multiple temperature resistance characteristic sensing cable and its sensor |
| CN101996466A (en) * | 2010-11-11 | 2011-03-30 | 李萍 | Line-type temperature sensor |
| CN102163359A (en) * | 2011-04-12 | 2011-08-24 | 李萍 | Linear temperature sensor with spare loop |
-
2013
- 2013-03-27 CN CN201310103109.3A patent/CN103198603B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1987944A (en) * | 2005-12-19 | 2007-06-27 | 李刚进 | Composite line type temperature sensing fire detector and its data fusing warning method |
| US20090059998A1 (en) * | 2007-08-27 | 2009-03-05 | Billy Hou | Multiple temperature resistance characteristic sensing cable and its sensor |
| CN101290703A (en) * | 2008-05-15 | 2008-10-22 | 张陈 | Multi-loop sectional monitoring temperature-sensing electrical signal cable type linear temperature-sensitive detector |
| CN101996466A (en) * | 2010-11-11 | 2011-03-30 | 李萍 | Line-type temperature sensor |
| CN102163359A (en) * | 2011-04-12 | 2011-08-24 | 李萍 | Linear temperature sensor with spare loop |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104616806A (en) * | 2014-12-30 | 2015-05-13 | 北京无线电计量测试研究所 | Low-thermal electromotive force cable |
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| CN103198603B (en) | 2016-01-06 |
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Effective date of registration: 20160216 Address after: 110167 B404 room, No. 860-2 deep ditch village, Dongling District, Liaoning, Shenyang Patentee after: Shenyang Putaian Technology Co.,Ltd. Address before: Binhe Road East Shenhe District of Shenyang City, Liaoning province 110014 No. 28-1 2-4-1 Patentee before: Li Ping |