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WO2008104105A1 - Détecteur d'incendie multifonctionnel à câbles linéaires de détection de température - Google Patents

Détecteur d'incendie multifonctionnel à câbles linéaires de détection de température Download PDF

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Publication number
WO2008104105A1
WO2008104105A1 PCT/CN2007/000758 CN2007000758W WO2008104105A1 WO 2008104105 A1 WO2008104105 A1 WO 2008104105A1 CN 2007000758 W CN2007000758 W CN 2007000758W WO 2008104105 A1 WO2008104105 A1 WO 2008104105A1
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Prior art keywords
temperature
layer
polymer
ntc
polymer material
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PCT/CN2007/000758
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English (en)
Chinese (zh)
Inventor
Chen Zhang
Wenjiang Wang
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Individual
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Individual
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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K3/00—Thermometers giving results other than momentary value of temperature
    • G01K3/005—Circuits arrangements for indicating a predetermined temperature
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch

Definitions

  • the invention relates to a fire alarm device, and a multi-functional cable type linear temperature fire detector.
  • the linear type temperature-sensing fire detector in the prior art is a very widely used fire detector.
  • the linear type temperature detectors currently used can be divided into five types according to the principle of operation - the first type is a switch type line type.
  • the temperature detector see Fig. 1, in the detector, there is an outer sheath 1 in which two (or three, four) elastic conductors 3 are twisted together, and a certain melting point is used outside the conductor.
  • the plastic layer 2 is coated. When the temperature of the detector rises to soften or melt the plastic, under the elastic force of the elastic conductor, the conductors are in contact with each other, that is, a short circuit occurs, thereby achieving the purpose of reporting the fire.
  • the advantages of this type of detector are: When the temperature at any point on the detector reaches the set alarm temperature, the detector can be short-circuited.
  • the sensitivity of the detector alarm is independent of the length of the heat. Therefore, the object to be protected is partially overheated or fired.
  • the detection sensitivity is very high.
  • One of the disadvantages is that the short-circuit condition remains after the alarm. To continue the operation of the detector, the part of the detector that has been short-circuited by heat must be replaced. In order to increase the sensitivity of the line detector, the alarm temperature setting is usually lower, and the damaged cable is replaced more frequently.
  • the second disadvantage is that there is only one alarm temperature setting value, only one fire alarm signal can be output, and no early warning signal can be issued for early fires.
  • the second type is an analog line type temperature sensor.
  • the cable structure is the same as above. The difference is that the outer surface of each conductor is covered with conductive plastic of NTC characteristics (negative temperature coefficient characteristic). When heated, the temperature rises. The resistance between the NTC plastics is reduced, the degree of resistance reduction is temperature dependent (ie, the resistance is a measurable analog quantity), and the analog line type fixed temperature or differential temperature detector is the absolute value or rate of change of the measured resistance. .
  • the disadvantages of this type of detector are: When the detector is heated and the temperature reaches a certain alarm temperature, the detector can predict the fire alarm. The alarm temperature is related to the length of the detector and the length of the heating. The longer the heating length, the lower the alarm temperature value.
  • the detector temperature reaches the fire temperature after the alarm, but does not exceed the temperature that is completely burned. After the temperature is lowered, the detector can continue to work.
  • the third type is an air line type temperature detector, see Fig. 2, in which there is a hollow metal tube 5. The two ends are provided with a plug 4, and one end thereof is provided with a pressure measuring interface 6. After the fire occurs, the metal pipe 5 is heated, and the internal air pressure changes, and the fire alarm is detected by measuring the absolute value or the change amount of the air pressure.
  • the advantages and disadvantages of this type of detector are similar to those of analog line type temperature sensors.
  • the fourth type of detector is a composite linear type temperature-sensing fire detector. See Figure 1 for the structure. The detector is twisted together by two (or three or four) elastic conductors, each of which is coated with the same meltable NTC plastic layer 7 respectively.
  • the resistance signal measuring device When the detector is heated, the resistance drops, when its resistance When falling to a set value, the resistance signal measuring device will generate and output the first fire alarm signal; then, when the temperature rises, the meltable NTC plastic layer softens or melts, and under the elastic force of the elastic conductor, two When the conductors are in contact with each other, a short-circuit resistance signal occurs, and the measuring device generates and outputs a second fire alarm signal.
  • the advantages and disadvantages of this detector are the same as the second one.
  • the fifth type consists of a switch-line type temperature-sensing fire detector and an analog-line type temperature-sensing fire detector, see Figure 3.
  • the NTC plastic layer 7 is coated on the outside of the two conductors 3, and the two conductors are twisted together, and the other two elastic conductors 9 are respectively wrapped with the fusible plastic layer 10 to be twisted together.
  • the outer outer sheath 1, the signal input end of the resistance signal measuring device 8 is connected to the conductor for measuring the resistance and short circuit between the two conductors and between the two elastic conductors. When the detector cable is heated, its temperature rises. First, the resistance of the NTC plastic layer 7 between the two conductors drops.
  • the resistance signal measuring device When the resistance value drops to a set value, the resistance signal measuring device will generate and output the first fire alarm. Signal; Then, when the temperature reaches a higher level, the meltable plastic layer softens or melts. Under the elastic force of the elastic conductor, the two conductors are in contact with each other, that is, a short-circuit resistance signal occurs, and the measuring device generates and outputs a second Secondary fire alarm signal.
  • the detector has the advantages of: It can output two fire alarm signals.
  • the disadvantages of this detector are: The alarm temperature set by the analog signal is related to the length of use and the ambient temperature. The fire alarm temperature cannot be correctly judged, and the accuracy of the alarm temperature of the detector is low.
  • the switch quantity and the composite cable type linear temperature fire detector are irreversible, and the analog and air tube type line type heat detectors are recoverable.
  • the set alarm temperature is related to the heating length, the length of use and the ambient temperature of the temperature detector, and the actual heating temperature cannot be correctly determined. Therefore, The fixed alarm temperature value is inaccurate, which may cause false alarms or false alarms. Therefore, it is necessary to provide a recoverable cable type temperature fire detector that is not affected by the length of use and ambient temperature.
  • the object of the present invention is to provide a multi-functional cable type linear temperature fire detector, which realizes multi-level fixed temperature alarm, differential temperature alarm and real-time monitoring of the ambient temperature of the temperature sensing cable.
  • the multi-functional cable type linear temperature fire detector is formed by connecting the two ends of the temperature sensing cable to the resistance signal processing device and the terminal box respectively to form a closed circuit signal collecting circuit, wherein the two elastic metal conductors of the temperature sensing cable are disposed between Two different material barrier layers, high molecular polymer insulation or PTC
  • the high molecular polymer material layer and the NTC or CTR high molecular polymer or the semiconductor high polymer material or the semiconductor strip barrier layer, and the two wires with the coating layer are twisted or entangled, and coated with a layer of aluminum
  • the temperature-sensitive cable is formed by extruding or wrapping an outer sheath; the resistance signal processing device monitors the temperature-sensitive cable because of different material coating layers.
  • the amount of change in resistance between the two elastic metal conductors and the difference in the rate of temperature rise between the elastic metal conductor coated with the NTC or CTR characteristic polymer material and the coated aluminum-plastic composite layer is set in the signal processing device to start the resistance amount, and the temperature value alarm value and the heating rate resistance difference are set in the resistance region which changes linearly from high to low.
  • Alarm value, and temperature monitoring of the temperature sensing cable use environment realize switching quantity fixed temperature alarm signal output, analog quantity fixed temperature alarm signal output, differential temperature alarm signal output, cable use environment Real-time monitoring of the analog signal output of the change.
  • the outstanding advantage of the multi-functional cable type temperature-sensing fire detector of the invention is that the alarm temperature is not limited by the use length and the ambient temperature, and the temperature-sensing cable can be used for a length of up to 5,000 meters and the performance is unchanged.
  • the resistance signal of the collected temperature sensing cable is always in the high-resistance insulation state, and the resistance value of the temperature sensing cable is only when the temperature exceeds the maximum ambient temperature allowed by the temperature sensing cable.
  • the resistance signal processing device judges the output alarm signal according to the temperature resistance value change, and can realize setting multiple temperature level alarms.
  • the key technology of the fire detector of the present invention is the structure of the temperature sensing cable, which uses a barrier layer provided with two different materials between the two elastic metal conductors.
  • the temperature-sensitive cable is not allowed to be damaged under the highest ambient temperature, and the elastic polymer-coated polymer or PTC-based polymer material is not damaged.
  • the elastic metal conductor cannot be exposed and cannot be characterized by coating NTC or CTR. When the coating of the molecular polymer material is in contact, the resistance signal processing device does not detect the resistance change signal of the high molecular polymer material covering the NTC or CTR characteristics.
  • the temperature sensing cable is below the maximum ambient temperature, the resistance between the two elastic metal conductors does not change significantly, and is always in a high-resistance insulation state, so the length of the temperature sensing cable is not limited.
  • the same or different melting point polymer polymer insulation material or PTC characteristic polymer polymer insulation material is softened or melted under the elastic force of the elastic metal conductor.
  • the elastic metal conductor covering the polymer polymer insulating material or the PTC characteristic polymer material is exposed, and the exposed elastic metal conductor is in contact with another coating layer covering the NTC or CTR characteristic high molecular polymer material.
  • the NTC or CTR characteristic polymer material between the two elastic metal conductors of the temperature-sensitive cable is reduced in heat resistance value according to the resistance value, and is outputted to a set value according to the resistance value.
  • the fire alarm signal, the degree of resistance reduction is related to the temperature of the temperature sensing cable.
  • the performance of the temperature sensing cable is unrecoverable and constant temperature type.
  • the resistance signal processing device is provided with a plurality of resistance points corresponding to the temperature corresponding to the temperature and a resistance value difference corresponding to the temperature increase rate.
  • a constant temperature alarm signal is issued, and when the temperature rise rate exceeds one set
  • a differential temperature alarm signal is issued.
  • the fixed temperature alarm temperature is 60 ° C, 70 ° C, 85 ° C, 105 ° C, 138 ⁇ five levels; and the alarm temperature can be arbitrarily set between 60 ° C and 138 ° C.
  • Differential temperature alarm heating rate 10 °C / min (20s ⁇ 140s response), 20 °C / min (22.
  • the temperature range is especially suitable for places where the fire temperature rises relatively fast.
  • the whole temperature sensing cable is provided with a thermal resistance temperature measuring wire, which can monitor the ambient temperature in real time.
  • the product can be reused multiple times and can be repeated at least 50 times.
  • the product quality is high in reliability, low in cost, high in sensitivity to temperature sensing, and can meet the performance requirements of GB16280-2005 "Linear Temperature Detector" and supplementary provisions.
  • 1 is a schematic structural view of a conventional first type of switching line type temperature sensing detector
  • FIG. 2 is a schematic structural view of a conventional third air line type temperature sensing detector
  • FIG. 3 is a schematic view of a conventional fifth-type switch-analog-combined line type temperature-sensing fire detector;
  • FIG. 4 is a schematic structural view of a multi-functional cable type line-type fire detector according to the present invention;
  • FIG. 6 is a schematic structural view of a multi-function cable type temperature-sensing fire detector of the present invention;
  • FIG. 7 is a schematic diagram of a multi-functional cable type linear temperature fire detector of the present invention;
  • FIG. 8 is a schematic structural view of a multi-functional cable type linear temperature fire detector according to the present invention;
  • FIG. 9 is a schematic structural view of a multi-functional cable type linear temperature fire detector according to the present invention;
  • 10-12 is a schematic structural view of an example 7-9 of a temperature sensitive fire detector having an auxiliary function according to the present invention;
  • Example 1 Multi-functional cable type temperature sensitive fire detector, Example 1 is shown in Figure 4:
  • the two ends of the temperature sensing cable are respectively connected with the resistance signal processing device and the terminal box to form a closed circuit resistance signal acquisition circuit, which is characterized by two temperature sensing cables.
  • the root elastic metal conductor 21 by wrapping the strip or extruding, one of the conductors 21
  • the high molecular polymer insulating material or the PTC characteristic high molecular polymer material layer 22 is coated, and the other conductor 21 is coated with the NTC or CTR characteristic high molecular polymer material layer 23, and two wire bodies having different material coating layers. Stranded or entangled together, and then extruded or wrapped around an outer sheath 24 to form a recoverable temperature-sensing cable.
  • an alarm signal of the NTC or CTR characteristic polymer material layer 23 is set in the memory of the resistance signal processing device to activate the resistance amount.
  • Multiple alarm values can be set in the resistance range that varies linearly from high to low.
  • NTC (negative temperature coefficient) characteristic polymer material NTC (negative temperature coefficient) characteristic polymer material
  • Polymer main material 100 parts of polyvinyl chloride resin.
  • Plasticizer D0P (dioctyl phthalate) 20 parts, chlorinated paraffin 20 parts, DBP (di-n-butyl phthalate) 10 parts
  • the above materials are prepared by mixing, kneading, kneading, tableting, and granulating.
  • the resistivity decreases, between 25 ⁇ and 150 ( (down 2 to 8 orders of magnitude).
  • Polymer main material Polyvinyl chloride resin 100 parts
  • Plasticizer DBP (di-n-butyl phthalate) 50 parts
  • Conductive powder Conductive zinc oxide 20 parts
  • Conductive polymer material polyethylene oxide 1 part
  • the above materials are prepared by mixing, kneading, kneading, tableting, and granulating.
  • the resistivity decreases abruptly over a specific temperature range, between 25: and 150 ( (down 2 to 8 orders of magnitude).
  • the properties of the polymer insulation insulating material are selected as follows: The volume resistivity is between 10 16 and 10 18 ⁇ - cm, between 25 ° C and 85 ° C (resistivity. Always maintained at high resistance). 4. Semiconductor polymer materials:
  • Polymer main material high density polyethylene 100 parts
  • Conductive powder Conductive carbon black 30 parts
  • Antioxidant 6-tert-butyl m-cresol (antioxidant 300) 0. 2 parts
  • the above materials are prepared by mixing, kneading, kneading, tableting, and granulating.
  • the properties of the semiconductor polymer material selected are: a polymer material having a volume resistivity of 10 9 ⁇ ⁇ cm or less.
  • PVDF polyvinylidene fluoride
  • HDPF High Density Polyethylene 50 parts
  • the above materials are prepared by mixing, kneading, kneading, tableting, and granulating.
  • the resistivity When the temperature rises, the resistivity will decrease abruptly within a certain temperature range, between 25 ° C and 150 ° C (up to 2 to 6 orders of magnitude).
  • the main material selection performance is a volume resistivity of 10 9 ⁇ ⁇ cm or less.
  • Embodiment 2 the structure of the recoverable constant temperature temperature sensing cable is as shown in FIG. 5: two elastic metal conductors 21, one of which is covered with a polymer polymer insulating material or a PTC characteristic high molecular polymer material layer 22, and the other Coating NTC or CTR characteristic polymer material layer 23, and then coating a layer of polymer polymer insulation material or PTC characteristic polymer material layer 22, two wire bodies with different material coating layers, twisted They are entangled or entangled, and a temperature-sensitive cable is formed by extruding or wrapping an outer sheath 24.
  • Embodiment 3 The structure of the recoverable constant temperature temperature sensing cable is as shown in FIG. 6: two elastic metal conductors 21 respectively cover the NTC or CTR characteristic high molecular polymer material layer 23, and then respectively coated with a polymer insulating material. Or a PTC characteristic polymer material layer 22, two wire bodies having the same cladding layer, stranded or entangled together, and extruded or wrapped with an outer sheath 24 to form a temperature sensing cable.
  • the structure of the recoverable constant temperature temperature sensing cable is as shown in FIG. 7: the two elastic metal conductors 21 respectively cover the NTC or CTR characteristic high molecular polymer material layer 23, and are respectively coated with a layer of polymer polymer insulation. Material or PTC characteristic polymer material layer 22, and then separately coated with a layer of aluminum-plastic composite tape or copper-plastic composite tape or metal foil layer 25, two wire bodies with the same coating layer, stranded or wound Together, the outer sheath 24 is extruded or wrapped to form a temperature sensing cable; one of which covers the NTC or CTR characteristic polymer material layer 23 and the polymer polymer insulation material or the PTC characteristic polymer.
  • the wire body of the polymer material layer 22 may also not be coated with an aluminum-plastic composite tape or a copper-plastic composite tape or metal foil layer 25.
  • Embodiment 5 The recoverable differential temperature sensing temperature cable structure is as shown in FIG. 8: the root elastic metal conductor 21 covers the NTC or CTR characteristic high molecular polymer material layer 23, and the other elastic metal conductor 21 covers the polymer polymerization. Insulation material or PTC characteristic polymer material layer 22, two wire bodies with different coating layers, stranded or entangled, coated with aluminum-plastic composite tape or copper-plastic composite tape or metal foil layer or wire The braided layer 25 is externally extruded or wrapped around the outer sheath 24.
  • the basic functions are the same as those in Example 1 - Example 4 above, and the differential temperature alarm function is added.
  • the aluminum-plastic composite tape or the copper-plastic composite tape or the metal foil layer or the wire braid layer 25 can be used as a secondary conductor in contact with the NTC or CTR characteristic polymer material layer 23, and the resistance signal processing device can directly collect and coat the NTC or CTR characteristic polymer metal material layer 23 of the elastic metal conductor 21, and the secondary conductor aluminum-plastic composite tape or copper-plastic composite tape or metal foil layer or wire braid layer 25 resistance signal, due to heat, temperature sensing cable
  • the resistance between the elastic metal conductor 21 and the secondary conductor wire braid layer 25 decreases, and the resistance signal processing device outputs a differential temperature alarm signal according to the temperature rise rate and the corresponding resistance decrease speed. Since the secondary conductor cladding has a shielding function, the electromagnetic compatibility or anti-interference ability of the temperature-sensitive cable is enhanced.
  • Embodiment 6 The structure of the recoverable differential temperature sensing temperature cable is as shown in FIG. 9: an elastic metal conductor 21 is coated with the NTC or CTR characteristic polymer material layer 23, and then coated with an aluminum-plastic composite tape or a copper-plastic composite tape. Or a metal foil or wire braid layer 25, another elastic metal conductor 21 covering the NTC or CTR characteristic polymer material layer 23, and then coating the polymer polymer insulating material or the PTC characteristic polymer material layer 22 Two wire bodies with different coating layers, stranded or entangled, and extruded or wrapped around the outer sheath 24 to form a temperature sensing cable.
  • Embodiment 7 A structure in which a differential temperature alarm working pole is added and a recoverable differential temperature sensing temperature cable having a shielding function is added is shown in Fig. 10: - the root elastic metal conductor 21 has a polymer insulating material or a high PTC characteristic The molecular polymer material layer 22 and the other elastic metal conductor 21 have a NTC or CTR characteristic polymer material layer 23, two wire bodies of different materials, which are twisted or entangled and then placed or wound one by one or More than one ambient temperature monitoring conductor 26, then coated with an aluminum-plastic composite tape or a copper-plastic composite tape or a metal foil or wire braid 25, and then placed or wound one or more metal secondary conductors 28, and then squeezed together The outer jacket layer 24 is molded or wrapped.
  • the one or more metal secondary conductors 28 may be placed or wound in an aluminum-plastic composite tape or a copper-plastic composite tape or a metal foil or wire braid layer 25 or in an aluminum-plastic composite tape or a copper-plastic composite tape or metal. Inside or outside of the foil or metal braid layer 25. Sliding or winding one or more ambient temperature monitoring conductors 26, also in aluminum-plastic composite tape or copper-plastic composite tape Either or in the metal foil or wire braid layer 25 or both in the aluminum-plastic composite tape or the copper-plastic composite tape or the metal foil or metal braid layer 25.
  • the metal sub-conductor 28 may be omitted, and a temperature-sensitive cable having an auxiliary function may be formed.
  • the above ambient temperature monitoring conductor 26 has an insulating layer or no insulating layer. It is connected as a thermal resistance temperature sensor and a resistance signal processor. The conductor resistance signal is detected and the ambient temperature used by the temperature sensing cable is monitored. .
  • the coated aluminum-plastic composite tape, the copper-plastic composite tape, the metal foil, the wire braided shielding layer 25 and the one or more metal secondary conductors 28 are used as a differential temperature alarm working pole, and have a shielding function. .
  • Embodiment 8 The structure of the recoverable constant temperature temperature sensing cable with shielding and temperature sensing cable ambient temperature monitoring function is as shown in Fig. 11: a flexible metal conductor 21 is provided with a polymer polymer insulating material or a PTC characteristic high molecular polymer.
  • the material coating layer 22 and the other elastic metal conductor 21 have an NTC or CTR characteristic high molecular polymer material coating layer 23, and then a polymer polymer insulating material or a PTC characteristic high molecular polymer material coating layer 22, After being twisted or entangled, there is an insulating coating 27, and then one or more ambient temperature monitoring conductors 26 and shield conductors 28 are placed or wound, and then coated with an aluminum-plastic composite tape or a copper-plastic composite tape layer or metal.
  • a foil or wire braided cladding 25 the outermost layer being extruded or wrapped around the outer cover 24.
  • the coated aluminum-plastic composite tape, the copper-plastic composite tape, the metal foil or the wire braid 25 or the winding or the shielding conductor 28 is intended to enhance the electromagnetic compatibility or anti-interference ability of the temperature-sensitive cable.
  • the insulating tape layer 27, the aluminum-plastic composite tape, the copper-plastic composite tape, the metal foil or the wire braid layer 25 can also be separately or simultaneously added to all the structures of the examples 1 to 6, the cladding layer 27 and the cladding layer 25 Locations are interchangeable.
  • Embodiment 9 The structure of the recoverable constant temperature temperature sensing cable having the shielding and temperature sensing cable using the ambient temperature monitoring function can also be, as shown in Fig. 12:
  • the outer surface of the two elastic metal conductors is covered with NTC or CTR characteristic polymer material.
  • the ambient temperature monitoring conductor 26 is followed by an insulating tape 27, and then one or more shielded conductors 28 are placed or wound, and then coated with an aluminum-plastic composite tape or a copper-plastic composite tape or a metal foil or a wire braid.
  • the layer 25 is further covered with an insulating tape layer 27, and the outermost layer is extruded or wrapped around the outer jacket layer 24.
  • One or more of the ambient temperature monitoring conductors 26 in the above Examples 8 and 9 may also be at 24. 25, 27 layers of any placement or winding; one or more shielded conductors 28 can also be placed at the same time inside or outside the aluminum-plastic composite tape or copper-plastic composite tape or metal foil or wire braided tape layer 25 or Winding, or metal shield conductor 28 may also be omitted.
  • One or more ambient temperature monitoring conductors 26 and shield conductors 28 may also be applied to all of the structures of Examples 1-Example 7 either separately or simultaneously in the manner of Examples 8 and 9.
  • Embodiment 10 The structure of the unrecoverable constant temperature temperature sensing cable is the same as that of the above-mentioned Example 1 - Example 5 and Example 7 - Example 9, except that the material of the NTC or CTR characteristic polymer material layer 23 is replaced with the semiconductor layer polymer. Material layer or semiconductor tape cladding layer 23 '.
  • Example 11 The structure of the unrecoverable fixed temperature and recoverable differential temperature temperature temperature cable is the same as that of the above Example 6, see Fig. 9: only one of the NTC or CTR characteristic polymer material coating layers 23 and PTC are sequentially coated.
  • the NTC or CTR characteristic polymer material in the elastic metal conductor 21 of the characteristic high molecular polymer material or the high molecular polymer insulating material coating layer 22 is replaced by a semiconductor layer polymer material layer or a semiconductor strip coating layer 23 ' .
  • Conductor Elastic metal conductor, conductor size is selected between ⁇ 0. 2 ⁇ 3.
  • the material is available in steel wire, copper wire, iron wire, nickel wire, platinum wire, stainless steel wire and alloy material of the above materials.
  • the outer layer of the wire is galvanized, tinned, copper plated, silver plated, chrome plated, nickel plated. Because the metal wire is stretched and stretched to have a certain strength and elasticity, it is called an elastic metal wire.
  • the outer layer of the conductor can be galvanized, tin plated, copper plated, silver plated, chrome plated, nickel plated.
  • the outer layer can also be covered with a layer of insulating material.
  • NTC or CTR negative temperature coefficient polymer material or semiconductor polymer material is polymer (nitrile rubber, fluoro rubber, ethylene propylene rubber, styrene butadiene rubber, neoprene, silicone rubber, poly One of polymer materials such as vinyl chloride resin, polyethylene, fluoroplastic, polypropylene, polyamide plastic, polystyrene, chlorinated polyether, polyamide, chlorinated polyethylene, chlorosulfonated polyethylene, etc.
  • Conductive polymer material one or more of polyacetylene, polyaniline, polythiophene, polyfluorene, polyethylene oxide, quaternary ammonium salt ion antistatic agent, after mixing, hot melt, kneading, It is made by tableting and granulation.
  • Conductive powder conductive zinc oxide, conductive titanium oxide, conductive vanadium oxide, conductive tin oxide, conductive lead oxide, conductive silicon dioxide, copper powder, aluminum powder, iron powder, silver powder, tin powder, nickel
  • One or more of powder, conductive carbon black, and carbon black are prepared by mixing, hot-melting, kneading, tableting, and granulating.
  • plasticizers 225 kinds of plasticizers known
  • hot-melt kneading
  • tableting granulation
  • Adjuvant Antioxidant, heat stabilizer, light stabilizer, flame retardant, enhancer, colorant, lubricant, antifogging agent, anti-aging agent, antistatic agent, termite-proofing agent, anti-rat agent, accelerator
  • One or more of the softeners, which do not affect the product characteristics after addition, may or may not be more or less.
  • fillers, reinforcing agents calcined clay, calcium bicarbonate, talc, titanium dioxide, red mud, fly ash, glass fiber, zinc oxide, magnesium oxide, porcelain clay, fillers play an incremental role, do not affect Product characteristics, with or without, can be more or less.
  • One of the 123 items can be one of them, and several or all of them can be added.
  • High molecular polymer materials are based on high molecular weight polymers (polyethylene, polypropylene, ethylene-vinyl acetate copolymer, natural rubber, polyvinylidene fluoride, etc.). miscellaneous:
  • conductive powder conductive zinc oxide, conductive titanium oxide, conductive vanadium oxide, conductive tin oxide, conductive lead oxide, conductive silicon dioxide, copper powder, aluminum powder, iron powder, silver powder, tin powder, nickel
  • powder, conductive carbon black, and carbon black are prepared by mixing, hot-melting, kneading, tableting, and granulating.
  • Adjuvant Antioxidant, heat stabilizer, light stabilizer, flame retardant, enhancer, colorant, lubricant, antifogging agent, anti-aging agent, antistatic agent, termite-proofing agent, anti-rat agent, accelerator , softener, does not affect the product characteristics after the addition, can be more or less, more or less.
  • One of the 123 items can be one of them, and several or all of them can be added.
  • the material can be polyvinyl chloride, polyethylene, fluoroplastic, polyamide plastic, polyurethane plastic, polypropylene, polystyrene, chlorinated polyethylene, ethylene-vinyl acetate copolymer.
  • the material may be a polymer polymer insulation material or a PTC, NTC, CTR characteristic polymer material or a semiconductor polymer material.
  • Semiconductor strip The material can be: paper semiconductor strip, fiberglass semiconductor strip, synthetic fiber semiconductor strip, natural fiber semiconductor strip.
  • the thickness of the insulating coating can be selected between 0. 01 ⁇ 1. 0mm, and the width can be selected between 5 ⁇ 40mm.
  • the thickness of the aluminum-plastic composite tape or the copper-plastic composite tape or the metal foil may be selected between 0. 01 ⁇ : 1. 0mm.
  • the thickness of the polymer layer or the PTC polymer material is between 0.05 and 2. 0 mm.
  • the thickness of the semiconductor strip is selected between 0. 01 ⁇ 2. 0mm, and the width is selected between 5 ⁇ 30mm.

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  • Business, Economics & Management (AREA)
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  • Fire-Detection Mechanisms (AREA)

Abstract

L'invention porte sur un détecteur d'incendie multifonctionnel à câbles linéaires de détection de température, où les deux extrémités desdits câbles sont connectées à un appareil de traitement de signaux de résistance et à une boîte de bornes afin de former un circuit d'acquisition de signal en circuit fermé. Le détecteur se caractérise en ce que: un isolant de polymère à macromolécules ou un polymère PTC à macromolécules (22) ou un polymère NTC ou CTR à macromolécules ou une entre-couche (23) de semi-conducteur, sont disposés entre les deux conducteurs (21) de métal élastique des câbles de détection de température, et que deux fils à couche d'enrobage entre-torsadés ou torsadés ensemble sont moulés serrés ou enveloppés d'une gaine isolante (24) pour former le câble détecteur de température.
PCT/CN2007/000758 2007-02-27 2007-03-09 Détecteur d'incendie multifonctionnel à câbles linéaires de détection de température Ceased WO2008104105A1 (fr)

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CN200710010497.5 2007-02-27
CNA2007100104975A CN101017594A (zh) 2007-02-27 2007-02-27 多功能缆式线型感温火灾探测器

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WO2008104105A1 true WO2008104105A1 (fr) 2008-09-04

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Cited By (8)

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CN101996466A (zh) * 2010-11-11 2011-03-30 李萍 一种线型温度感知器
WO2013114418A1 (fr) 2012-02-02 2013-08-08 Steigerwalt Robert Davis Jr Administration transdermique de prostaglandine e1 pour le traitement de l'ischémie oculaire
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WO2013114418A1 (fr) 2012-02-02 2013-08-08 Steigerwalt Robert Davis Jr Administration transdermique de prostaglandine e1 pour le traitement de l'ischémie oculaire
CN103956201A (zh) * 2014-04-02 2014-07-30 安徽复兴电缆集团有限公司 一种可恢复式感温综合电缆
CN107680316A (zh) * 2016-08-02 2018-02-09 青岛中阳消防科技股份有限公司 一种基于串联热敏电阻元件的多探测回路线型感温火灾探测器
CN107978121A (zh) * 2017-12-29 2018-05-01 江苏中实电子有限公司 一种可重复使用的线型感温火灾探测器及其报警方法
CN107978121B (zh) * 2017-12-29 2024-02-09 江苏中实电子有限公司 一种可重复使用的线型感温火灾探测器及其报警方法
CN108878581A (zh) * 2018-06-16 2018-11-23 复旦大学 一种可穿戴可拉伸的弹簧状光电探测器件及其制备方法
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CN115014564B (zh) * 2022-08-04 2022-11-01 河北微探电子设备有限公司 一种可恢复式差定温型感温电缆

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