CN203179213U - Temperature change alarm line of coaxial structure - Google Patents
Temperature change alarm line of coaxial structure Download PDFInfo
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- CN203179213U CN203179213U CN 201320146992 CN201320146992U CN203179213U CN 203179213 U CN203179213 U CN 203179213U CN 201320146992 CN201320146992 CN 201320146992 CN 201320146992 U CN201320146992 U CN 201320146992U CN 203179213 U CN203179213 U CN 203179213U
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- alarming line
- temperature variation
- temperature
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Abstract
A temperature change alarm line of a coaxial structure is disclosed. A microcomputer modulator is connected with the alarm line and a terminal resistor. The alarm line is characterized in that an alarm line structure comprises three or four conductors which are arranged coaxially; a cladding layer is characterized in that a first NTC characteristic material layer, a second conductor, a second NTC characteristic material layer, a third conductor and an outer sheath layer successively wrap a first conductor of a axis center; the first conductor and the second conductor form a first loop and are provided with a first terminal resistor; the second conductor and the third conductor form a second loop and are provided with a second terminal resistor; the microcomputer modulator acquires an absolute value of electrical parameter change value difference of a moment of the two loops in real time; it is a normal monitoring state when a heating rate of an ambient temperature of the alarm line is less than 10 DEG C/min; when the heating rate of the ambient temperature reaches or exceeds 10 DEG C/min and the absolute value of electrical parameter change value difference of the two loops is greater than or equal to a predetermined alarm threshold values, the microcomputer modulator outputs a differential temperature and a fixed temperature alarm signal can be obtained. The alarm line of the utility model is not restricted by a usage length, an ambient temperature and a heating length and can be used repeatedly.
Description
Technical field
The utility model 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, accompanying drawing 3 is depicted as 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 purpose of this utility model provides a kind of temperature variation alarming line 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 is outward a NTC characteristic material layer, second conductor, the 2nd NTC characteristic material layer, the 3rd conductor and external sheath layer by first conductor in axle center successively, first conductor and second conductor connect and compose first loop and establish first terminal resistance in the temperature variation alarming line, and second conductor and the 3rd conductor connect and compose second loop and establish second terminal resistance; The real-time collecting temperature of microcomputer modulator changes two loops of alarming line absolute value of section interior electrical quantity variation value difference sometime.
The temperature variation alarming line of another kind of coaxial configuration, the another kind of structure that it is characterized in that the temperature variation alarming line: four coaxial settings of conductor, clad is coated a NTC characteristic material layer, banded second conductor of coating, coated insulation material layer outward successively, coats banded the 4th conductor, coats the 2nd NTC characteristic material layer, is coated band shape the 3rd conductor and external sheath layer by first conductor in axle center, first conductor and second conductor connect and compose first loop in the temperature variation alarming line, and the 4th conductor and the 3rd conductor connect and compose second loop; First terminal resistance is also established in first loop, and second terminal resistance is also established in second loop.
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 length of being heated of temperature variation alarming line.
3, only consider two loops absolute value of section interior electrical quantity variation value difference sometime, whether when presetting alarming threshold value, be, then the differential temperature alerting signal is exported in the microcomputer modulation, microcomputer modulation simultaneously detects the variable quantity of the electrical parameter values in two loops in real time, when the electrical quantity in two loops or a loop changes when presetting alarming threshold value, and microcomputer modulator can also be exported the constant temperature alerting signal., the microcomputer modulation just is not 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.
The temperature variation alarming line of a kind of coaxial configuration of the present invention can arrange differential temperature warning heating rate: response in 10 ℃/min(20s～200s), response in 20 ℃/min(20s～150s), response in 30 ℃/min(15s～100s), 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 the temperature variation alarming line of this coaxial configuration;
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, by microcomputer modulator 7 and temperature variation alarming line and terminal resistance R1, R2 connects to form, described temperature variation alarming line structure is three coaxial settings of conductor, clad is first conductor, the 1 outer NTC characteristic material layer 2 that coats successively by the axle center, coat banded second conductor 3, coat NTC characteristic material layer 4, coat banded the 3rd conductor 5, coat external sheath layer 6, first conductor 1 of temperature variation alarming line and second conductor 3 connect and compose first loop and establish the first terminal resistance R1, second conductor 3 and the 3rd conductor 4 connect and compose second loop and establish the second terminal resistance R2, microcomputer modulator 7 real-time collecting temperatures change two loops of alarming line absolute value of section interior electrical quantity variation value difference sometime, when the heating rate of temperature variation alarming line environment temperature during less than 10 ℃/min, because the temperature variation alarming line is coaxial configuration, as if two loops of ectonexine be heated simultaneously, the electrical quantity in two loops can change simultaneously, namely the absolute value of two loop electrical quantity variation value differences is less than the alarming threshold value that presets, and microcomputer modulator 7 is judged as the normal monitoring state.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, when two loops of microcomputer modulator collection sometime the absolute value of the electrical quantity variation value difference in the section 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 when the electrical quantity in two loops or a loop changes when presetting alarming threshold value, microcomputer modulator can also be exported the constant temperature alerting signal.
Embodiment 2, the temperature variation alarming line of another coaxial configuration, see Fig. 2, the structure that it is characterized in that temperature variation alarming line in the detector is: coaxial four conductors are set, clad is to be coated a NTC characteristic material layer 2 successively outward, coat banded second conductor 3, coated insulation material layer 8, coated banded the 4th conductor 9, coat the 2nd NTC characteristic material layer 4, coat banded the 3rd conductor 5, coat external sheath layer 6 by first conductor 1 in axle center.First conductor 1 and second conductor 3 of temperature variation alarming line connect and compose first loop, establish the first terminal resistance R1 simultaneously; The 4th conductor 9 and the 3rd conductor 5 connect and compose 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, the performance of NTC characteristic material layer is: 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 (2)
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 is outward a NTC characteristic material layer by axle center first conductor successively, second conductor, the 2nd NTC characteristic material layer, the 3rd conductor and 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 two loops of alarming line absolute value of section interior electrical quantity variation value difference sometime.
2. the temperature variation alarming line of another kind of coaxial configuration, 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) in axle center, 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320146992 CN203179213U (en) | 2013-03-27 | 2013-03-27 | Temperature change alarm line of coaxial structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320146992 CN203179213U (en) | 2013-03-27 | 2013-03-27 | Temperature change alarm line of coaxial structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203179213U true CN203179213U (en) | 2013-09-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320146992 Expired - Fee Related CN203179213U (en) | 2013-03-27 | 2013-03-27 | Temperature change alarm line of coaxial structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203179213U (en) |
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2013
- 2013-03-27 CN CN 201320146992 patent/CN203179213U/en not_active Expired - Fee Related
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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: 20130904 Termination date: 20160327 |