CN101183481B - Thermal partial discharge breakthrough type cable linear temperature-sensitive detector and alarm method thereof - Google Patents
Thermal partial discharge breakthrough type cable linear temperature-sensitive detector and alarm method thereof Download PDFInfo
- Publication number
- CN101183481B CN101183481B CN2007101681274A CN200710168127A CN101183481B CN 101183481 B CN101183481 B CN 101183481B CN 2007101681274 A CN2007101681274 A CN 2007101681274A CN 200710168127 A CN200710168127 A CN 200710168127A CN 101183481 B CN101183481 B CN 101183481B
- Authority
- CN
- China
- Prior art keywords
- temperature sensing
- sensing cable
- signal generation
- voltage signal
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000004020 conductor Substances 0.000 claims abstract description 60
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims abstract description 38
- 239000000463 material Substances 0.000 claims abstract description 33
- 230000015556 catabolic process Effects 0.000 claims abstract description 14
- 238000001514 detection method Methods 0.000 claims abstract description 6
- 238000001125 extrusion Methods 0.000 claims description 23
- 239000012774 insulation material Substances 0.000 claims description 5
- 230000011664 signaling Effects 0.000 claims description 3
- 230000004888 barrier function Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 46
- 238000005259 measurement Methods 0.000 description 6
- 239000004033 plastic Substances 0.000 description 6
- 229920003023 plastic Polymers 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229920002521 macromolecule Polymers 0.000 description 3
- 239000002861 polymer material Substances 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 230000001186 cumulative effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000013536 elastomeric material Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000003542 behavioural effect Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
Images
Landscapes
- Testing Relating To Insulation (AREA)
Abstract
The invention relates to a linear cable-type temperature detector for local discharge heat breakdown and an alarm method of the temperature detector. The invention is characterized in that two ends of a temperature sensing cable, which comprises two detecting conductors arranged in parallel and a barrier layer formed by NTC or CTR property material, are connected respectively with a voltage signal generation and detection device and a terminal resistor to form a closed circuit signal acquisition circuit; the voltage signal generation and detection device real-time or time-sharing sends detecting voltage to the temperature sensing cable, and then detects the sent electrical signal. When the temperature sensing cable is heated, the local discharge or breakdown occurs depending on the resistance decrement of NTC or CTR property material due to heat, and the voltage signal generation and detection device gives out a fire alarm after detecting local discharge or breakdown voltage signals; when the temperature returns below the highest allowable ambient temperature, the local discharge or breakdown voltage signals disappear, and the temperature sensing cable returns to normal working state; when the alarm signal sent by the voltage signal generation and detection device is set to be automatically locked; the device is a non-resettable detector. The invention has an advantage that the invention can output signals of short circuit failure, broken circuit failure, and relay power-off failure.
Description
Technical field
The present invention relates to a kind of thermal partial discharge breakthrough type cable linear heat detector and alarm method thereof, it is irrelevant with the length of being heated particularly to relate to a kind of alarm temperature, and that can avoid occurring reporting by mistake the fire alarm problem is used for renewable type line-type heat detector and alarm method thereof.
Technical background
Line-type heat detector of the prior art is a kind of broad-spectrum fire detector, the present renewable type line-type heat detector that uses: referring to Fig. 1, detector is made up of temperature sensing cable, resistance signal measurement mechanism, temperature sensing cable is by two detecting conductors, the 10 outer NTC plastic layers 11 that coat respectively, two detecting conductors twist together, oversheath 12 is arranged, the signal input part of resistance signal measurement mechanism 13 is connected with described detecting conductor, is used to measure the resistance situation between described two detecting conductors.When the detector temperature sensing cable was heated, its temperature rose thereupon, and at first the resistance of the NTC plastic layer 11 between two conductors descends, and when its resistance drops to a setting value, the resistance signal measurement mechanism will produce and output alarm signal.The shortcoming of this detector is: the alarm temperature of detector is relevant with the factors such as the length of being heated, heating temperature, environment temperature and use length of temperature sensing cable, can not right judgement fire alarm temperature, make the accuracy of this detector alarm temperature, reliably lower.Another kind of prior art, referring to Fig. 2, detector is made up of temperature sensing cable, resistance signal measurement mechanism, temperature sensing cable is by two parallel detecting conductors that are provided with 10 and a parallel NTC or CTR characteristic material layer 11, one interrupted conductive layer 15 and fused insulating layers 14 that are arranged between two detecting conductors 10, and in two detecting conductors 10 at least one be elastic conductor.When the linear temperature sensitive cable on this detector is heated and reaches uniform temperature, the fused insulating layer 14 of inside, heated part will begin to occur softening or melt, at this moment, under the elastic force effect of two detecting conductors 10, wherein detecting conductor 10 will and interrupted conductive layer 15 between be in contact with one another conducting, thereby make this contact conducting region form a line-type heat detector with conventional NTC or CTR characteristic, when the heated part reaches alarm temperature in this case, resistance signal measurement mechanism 13 output alarm signals when the resistance value between the resistance signal measurement mechanism 13 detected detecting conductors 10 reaches setting value.The shortcoming of this detector is: in the use of detector, increase along with alarm times, the cumulative length of contact conducting region will constantly increase, make the alarm temperature of detector relevant with the factors such as the length of being heated, heating temperature and use length of temperature sensing cable, can not right judgement fire alarm temperature, make the accuracy of this detector alarm temperature, reliability lower.
Summary of the invention
The object of the present invention is to provide a kind of thermal partial discharge breakthrough type cable linear heat detector and alarm method thereof, this detector is connected to form the closed circuit signaling Acquisition Circuit with voltage signal generation pick-up unit and terminal resistance respectively by the temperature sensing cable two ends and forms.Temperature sensing cable is made up of two parallel detecting conductors that are provided with and NTC or the CTR characteristic material barrier layer that is arranged between the detecting conductor.Voltage signal generation pick-up unit in real time or timesharing send to temperature sensing cable and detect voltage, and detect sending electric signal.When temperature sensing cable is heated, NTC between the detecting conductor or CTR characteristic material reduce owing to heated resistance, reduce degree according to resistance and produce shelf depreciation or puncture, send fire alarm by detected shelf depreciation of voltage signal generation pick-up unit or voltage breakdown signal, when the temperature sensing cable temperature returns to when allowing to use high ambient temperature following, NTC between the detecting conductor or CTR characteristic material layer resistance raise, shelf depreciation or voltage breakdown signal are eliminated, and temperature sensing cable returns to normal operating conditions again.The alerting signal of sending when voltage signal generation pick-up unit is automatically locked, and is the beyond-retrieve-type cable-type line-type heat detector.Voltage signal generation pick-up unit is judged output short-circuit, open circuit fault signal according to the detecting conductor change in resistance, relay output disconnection fault signal.
The alarm method one that the present invention relates to a kind of thermal partial discharge breakthrough type cable linear heat detector comprises the following step that carries out in order:
(1) voltage signal generation pick-up unit in real time or timesharing send to the temperature sensing cable detecting conductor and detect voltage, enter the stage of detection;
(2) when detecting the voltage breakdown signal, sends voltage signal generation pick-up unit alerting signal.
The alarm method two that the present invention relates to a kind of thermal partial discharge breakthrough type cable linear heat detector comprises the following step that carries out in order:
(1) voltage signal generation pick-up unit detects in real time to the resistance of temperature sensing cable;
(2) when temperature sensing cable resistance during less than a setting value, voltage signal generation pick-up unit in real time or timesharing send detectable voltage signals to the temperature sensing cable detecting conductor;
(3) voltage signal generation pick-up unit detects detecting conductor in real time, sends alerting signal when voltage signal generation pick-up unit detects shelf depreciation or voltage breakdown signal.
Compared with the prior art the present invention has following advantage:
(1) because the alarm temperature of a kind of thermal partial discharge breakthrough type cable linear heat detector of the present invention and alarm method thereof is only relevant with the temperature sensing cable heating temperature, irrelevant with the length of being heated, it is long to have eliminated the length of being heated, environment temperature, warning cumulative length, influence to alarm temperature, improve the warning accuracy of detector, and reduced the rate of false alarm of detector effectively.
(2) temperature sensing cable of the present invention's employing has reversibility, reusable, when temperature sensing cable is heated, shelf depreciation or breakthrough type cable linear temperature-sensitive detector send alerting signal, along with the ambient temperature decline of temperature sensing cable, the shelf depreciation or the puncture of temperature sensing cable stop, and this temperature sensing cable can recover its original state, can reuse after the warning, be recoverable cable type linear temperature-sensing detector.
(3) a kind of thermal partial discharge breakthrough type cable linear heat detector of the present invention and alarm method thereof, after part discharge or breakthrough type cable linear temperature-sensitive detector warning, the alerting signal that voltage signal generation pick-up unit sends also can be automatically locked, and hot shelf depreciation at this moment or breakthrough type cable linear temperature-sensitive detector are the beyond-retrieve-type cable-type line-type heat detector.
Description of drawings
Fig. 1 is traditional analog amount line-type heat detector structure 1 synoptic diagram;
Fig. 2 is traditional analog amount line-type heat detector structure 2 synoptic diagram;
Fig. 3～8th, the structural representation of a kind of thermal partial discharge breakthrough type cable linear heat detector of the present invention and alarm method example 1～example 6 thereof.
Embodiment
A kind of thermal partial discharge breakthrough type cable linear heat detector and alarm method thereof, example 1 is seen Fig. 3, described a kind of hot shelf depreciation or breakthrough type cable linear temperature-sensitive detector are connected to form the closed circuit signaling Acquisition Circuit with voltage signal generation pick-up unit 1 and terminal resistance R respectively by the temperature sensing cable two ends and form.The structure that it is characterized in that temperature sensing cable is by two detecting conductors 2, wherein one coats NTC or CTR characteristic material layer 3 (extrusion molding or wrapped), with another root detecting conductor 2 can be parallel, stranded, twine and to be set together, the extrusion molding external sheath layer 4 then, make temperature sensing cable.
Voltage signal generation pick-up unit 1 in real time or timesharing send to the detecting conductor 2 of temperature sensing cable and detect voltages, and the electric signal of another detecting conductor 2 is detected.When temperature sensing cable is heated, NTC between the detecting conductor 2 or CTR characteristic material layer 3 reduce owing to heated resistance, reduce degree shelf depreciation or puncture according to resistance, send alerting signal by voltage signal generation pick-up unit 1 detected shelf depreciation or voltage breakdown signal, ambient temperature decline when temperature sensing cable, the shelf depreciation or the puncture of temperature sensing cable stop, alerting signal is eliminated, temperature sensing cable can recover its original state, can reuse after promptly reporting to the police, be recoverable cable type linear temperature-sensing detector.After voltage signal generation pick-up unit 1 sends alerting signal, the alerting signal that voltage signal generation pick-up unit 1 sends also can be arranged to be automatically locked, and hot shelf depreciation at this moment or breakthrough type cable linear temperature-sensitive detector are the beyond-retrieve-type cable-type line-type heat detector.Voltage signal generation pick-up unit 1 is judged output short-circuit, open circuit fault signal according to the change in resistance between the detecting conductor 2, relay output disconnection fault signal.
The resistance of 1 pair of temperature sensing cable of voltage signal generation pick-up unit detects in real time, when temperature sensing cable resistance during less than a setting value, voltage signal generation pick-up unit 1 in real time or timesharing send to the detecting conductor 2 of temperature sensing cable and detect voltages, voltage signal generation pick-up unit 1 detects another detecting conductor in real time, sends alerting signal when voltage signal generation pick-up unit 1 detects shelf depreciation or voltage breakdown signal.
2 one kinds of thermal partial discharge breakthrough type cable linear heat detectors of embodiment, see Fig. 4, the structure that it is characterized in that temperature sensing cable can also be: two detecting conductors 2, wherein one coats NTC or CTR characteristic material layer 3 (extrusion molding or wrapped), with another root detecting conductor 2 can be parallel, stranded, twine and to be set together, coat screen layer 5, the extrusion molding external sheath layer 4 then, make temperature sensing cable.
3 one kinds of thermal partial discharge breakthrough type cable linear heat detectors of embodiment and alarm method thereof, see Fig. 5, the structure that it is characterized in that temperature sensing cable is by two detecting conductors 2, wherein one coats NTC or CTR characteristic material layer 3 (extrusion molding or wrapped), coat screen layer 5 then, again with another root detecting conductor 2 can be parallel, stranded, twine and to be set together, last extrusion molding external sheath layer 4 is made temperature sensing cable.
4 one kinds of thermal partial discharge breakthrough type cable linear heat detectors of embodiment and alarm method thereof, see Fig. 6, the structure that it is characterized in that temperature sensing cable is by two detecting conductors 2, coat NTC or CTR characteristic material layer 3 (extrusion molding or wrapped) respectively, two detecting conductors 2 that clad arranged can be parallel, stranded, twine and be set together, make temperature sensing cable.Or wherein clad change into semiconductor material layer 7 or 8, two of insulation material layers have the detecting conductor 2 of different clads can be parallel, stranded, twine and be set together, make temperature sensing cable.Outermost layer is extrusion molding external sheath layer 4 or the first screen layer 5 extrusion molding external sheath layer 4 again that coats of outermost layer again.
5 one kinds of thermal partial discharge breakthrough type cable linear heat detectors of embodiment and alarm method thereof are seen Fig. 7, and the structure that it is characterized in that temperature sensing cable is by two detecting conductors 2, and extrusion molding coating NTC or CTR characteristic material layer 3 are made temperature sensing cable simultaneously.Two detecting conductor 2 spacings equate to be set in parallel in NTC or the CTR characteristic material layer 3.Outermost layer is extrusion molding external sheath layer 4 or the first screen layer 5 extrusion molding external sheath layer 4 again that coats of outermost layer again.
6 one kinds of thermal partial discharge breakthrough type cable linear heat detectors of embodiment and alarm method thereof, see Fig. 8, the structure that it is characterized in that temperature sensing cable is to coat NTC or CTR characteristic material layer 3 (extrusion molding or wrapped) by a detecting conductor 2, coat screen layer 5 then, last extrusion molding external sheath layer 4 is made temperature sensing cable.
The foregoing description 1～embodiment 6, the detecting conductor 2 of a kind of thermal partial discharge breakthrough type cable linear heat detector and alarm method thereof can be cores or more than the core, and the detecting conductor 2 that clad is arranged can be a core or more than the core.
The foregoing description 1～embodiment 6, a kind of hot shelf depreciation or breakthrough type cable linear temperature-sensitive detector and alarm method thereof, also extrudable insulation material layer or coated insulation material layer 8 in the extrusion molding external sheath layer 4 in its temperature sensing cable structure.Screen layer 5 is arranged, and screen layer 5 can be used as detecting conductor.
The material that conductor clad of the present invention is adopted and the behavioral illustrations of coating layer material:
1. detecting conductor (versatile material): specification is selected for use between Φ 0.01mm～2.0mm.Material can select for use metal material to make or conductive fiber, conductive plastics are made.
2, NTC or CTR characteristic material layer (versatile material): selecting the performance of material is all plastics, the elastomeric material with NTC or CTR characteristic, coats thickness and selects between 0.1mm～1.0mm.
3, 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 0.1mm～2.0mm.
4, 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 0.01mm～1.0mm, and width is preferred between 2～20mm.
5, semiconductor material layer: material can be that specific insulation is 10
-5～10
10The macromolecule polymer material of Ω cm
6, the voltage or the pulse voltage of described voltage generation pick-up unit generation are sine wave, cosine wave (CW), sawtooth wave, square wave etc. in 1～1000V, frequency at 0～1000MHz, waveform.
7, insulation material layer: select the performance of insulating material to be: Vicat softening point is 40 ℃～180 ℃, and specific insulation is 10
8～10
20All plastics of Ω cm, elastomeric material.Coating thickness selects between 0.1～1.0mm.The thickness of band is to select for use between 0.01mm～1.0mm, and width is preferred between 2～20mm.
Claims (8)
1. thermal partial discharge breakthrough type cable linear heat detector, it is characterized in that described a kind of thermal partial discharge breakthrough type cable linear heat detector is connected to form the closed circuit signaling Acquisition Circuit with voltage signal generation pick-up unit (1) and terminal resistance R respectively by the temperature sensing cable two ends and forms; The structure that it is characterized in that temperature sensing cable is by two detecting conductors (2), wherein one coats NTC negative temperature coefficient feature or CTR critical temperature coefficient feature material layer (3), with another root detecting conductor (2) be parallel, stranded, twine and to be set together, extrusion molding external sheath layer (4) is made temperature sensing cable then; Voltage signal generation pick-up unit (1) in real time or timesharing send to the temperature sensing cable detecting conductor and detect voltage, enter the stage of detection, voltage signal generation pick-up unit (1) sends alerting signal when detecting the voltage breakdown signal; Perhaps voltage signal generation pick-up unit (1) detects in real time to the resistance of temperature sensing cable, the temperature sensing cable resistance is during less than a setting value, voltage signal generation pick-up unit (1) in real time or timesharing send detectable voltage signals to the temperature sensing cable detecting conductor, detecting conductor is detected, and voltage signal generation pick-up unit sends alerting signal when detecting shelf depreciation or voltage breakdown signal.
2. a kind of thermal partial discharge breakthrough type cable linear heat detector according to claim 1, it is characterized in that pulse voltage that described voltage signal generation pick-up unit (1) produces in 1～1000V, frequency at 0～1000MHz, waveform is sine wave, cosine wave (CW), sawtooth wave, square wave.
3. a kind of thermal partial discharge breakthrough type cable linear heat detector according to claim 1, the structure that it is characterized in that temperature sensing cable is by two detecting conductors (2), wherein one coats NTC negative temperature coefficient feature or CTR critical temperature coefficient feature material layer (3), with another root detecting conductor (2) be parallel, stranded, twine and to be set together, coat screen layer (5) again, extrusion molding external sheath layer (4) is made temperature sensing cable then.
4. a kind of thermal partial discharge breakthrough type cable linear heat detector according to claim 1, the structure that it is characterized in that temperature sensing cable is by two detecting conductors (2), wherein one coats NTC negative temperature coefficient feature or CTR critical temperature coefficient feature material layer (3), coat screen layer (5) then, again with another root detecting conductor (2) be parallel, stranded, twine and to be set together, last extrusion molding external sheath layer (4) is made temperature sensing cable.
5. a kind of thermal partial discharge breakthrough type cable linear heat detector according to claim 1, the structure that it is characterized in that temperature sensing cable are that two detecting conductors (2) spacing equates to be set in parallel in NTC negative temperature coefficient feature or the CTR critical temperature coefficient feature material layer (3); Outermost layer or extrusion molding external sheath layer (4) or outermost layer coat screen layer (5) extrusion molding external sheath layer (4) more earlier again.
6. a kind of thermal partial discharge breakthrough type cable linear heat detector according to claim 1 is characterized in that the detecting conductor (2) of the structure of temperature sensing cable is more than the core, and the core that clad is arranged is more than the core; In the extrusion molding external sheath layer (4) or insulation material layer (8) arranged again.
7. the alarm method of a thermal partial discharge breakthrough type cable linear heat detector, it is characterized in that voltage signal generation pick-up unit (1) in real time or timesharing send to the detecting conductor (2) of temperature sensing cable and detect voltage, and the electric signal of another detecting conductor (2) detected, when temperature sensing cable is heated, NTC negative temperature coefficient feature between the detecting conductor (2) or CTR critical temperature coefficient feature material layer (3) reduce owing to heated resistance, reduce degree shelf depreciation or puncture according to resistance, send alerting signal by detected shelf depreciation of voltage signal generation pick-up unit (1) or voltage breakdown signal.
8. the alarm method of a kind of thermal partial discharge breakthrough type cable linear heat detector according to claim 7, it is characterized in that the generation of voltage signal described in alarm method pick-up unit (1) detects in real time to the resistance of temperature sensing cable, when temperature sensing cable resistance during less than a setting value, voltage signal generation pick-up unit (1) in real time or timesharing send to the detecting conductor (2) of temperature sensing cable and detect voltage, voltage signal generation pick-up unit (1) detects another detecting conductor (2) in real time, sends alerting signal when voltage signal generation pick-up unit (1) detects shelf depreciation or voltage breakdown signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101681274A CN101183481B (en) | 2007-11-01 | 2007-11-07 | Thermal partial discharge breakthrough type cable linear temperature-sensitive detector and alarm method thereof |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710157871.4 | 2007-11-01 | ||
| CN200710157871 | 2007-11-01 | ||
| CN2007101681274A CN101183481B (en) | 2007-11-01 | 2007-11-07 | Thermal partial discharge breakthrough type cable linear temperature-sensitive detector and alarm method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101183481A CN101183481A (en) | 2008-05-21 |
| CN101183481B true CN101183481B (en) | 2010-08-11 |
Family
ID=39448742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101681274A Active CN101183481B (en) | 2007-11-01 | 2007-11-07 | Thermal partial discharge breakthrough type cable linear temperature-sensitive detector and alarm method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101183481B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101017594A (en) * | 2007-02-27 | 2007-08-15 | 张陈 | Multifunctional cable linear temperature sensing fire detector |
-
2007
- 2007-11-07 CN CN2007101681274A patent/CN101183481B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101017594A (en) * | 2007-02-27 | 2007-08-15 | 张陈 | Multifunctional cable linear temperature sensing fire detector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101183481A (en) | 2008-05-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103198602A (en) | Line type temperature sensing fire detector and alarm method thereof | |
| CN103065420A (en) | Unrecoverable cable-type linear heat fire detector and alarm method thereof | |
| CN104484973B (en) | A kind of composite cable heat fire detector | |
| CN201138504Y (en) | Parallel line type temperature-sensing fire disaster detector with discrete temperature sensing switch serially connected with resistor | |
| CN101290703B (en) | Multi-loop sectional monitoring temperature-sensing electrical signal cable type linear temperature-sensitive detector | |
| CN100495455C (en) | Recoverable cable type linear temperature difference-sensing detector | |
| CN101246629A (en) | Switch double-temperature alarm short-circuit fault reporting linear detector and alarm method | |
| CN205862505U (en) | A kind of many detection circuits line-type heat detector based on thermistor element in parallel | |
| CN107545692B (en) | Unrecoverable cable type linear temperature-sensing fire disaster detector | |
| CN201262774Y (en) | Linetype heat detector for multi-loop sectional monitoring temperature-sensing electrical signal | |
| CN100495458C (en) | Irrecoverable type cable type line type fixed temperature fire detector | |
| CN202948536U (en) | Unrecoverable cable-type line style temperature-sensitive fire hazard detector | |
| CN101226670A (en) | Shorted fault and alarming method for beyond-retrieve-type cable-type line-type heat fire detector | |
| CN101183481B (en) | Thermal partial discharge breakthrough type cable linear temperature-sensitive detector and alarm method thereof | |
| CN106469495B (en) | A kind of compound fire alarm method and its line-type heat detector | |
| CN104574768A (en) | Linear temperature-sensing fire detector and alarm method thereof | |
| CN201203924Y (en) | Past retrieve cable type linetype temperature-sensing fire disaster detector | |
| CN101276505A (en) | Switch quantity composite reparable cable-type line-type heat fire detector | |
| CN201117046Y (en) | Composite type simulation quantity line-type temperature-sensing fire hazard detector | |
| CN100446045C (en) | Irrecoverable linear temperature sensitive detector and opening alarm method thereof | |
| CN100495456C (en) | Alarming method for linear temperature-sensing fire hazard detector with double fixed temperature alarming threshold value | |
| CN205211094U (en) | Linear temp. sensing fire detector | |
| CN205508047U (en) | Cable formula detector | |
| CN101050983B (en) | Double temperature warning linear temperature-sensing detector | |
| CN201489634U (en) | Combined recoverable line type temperature sensing detecting cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20080521 Assignee: Shenyang Putaian Technology Co.,Ltd. Assignor: Zhang Chen Contract record no.: 2014210000036 Denomination of invention: Thermal partial discharge breakthrough type cable linear temperature-sensitive detector and alarm method thereof Granted publication date: 20100811 License type: Exclusive License Record date: 20140505 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160415 Address after: Shen Liaodong road Tiexi District of Shenyang City, Liaoning province 110022 47-2 Acer international city 31-2 Patentee after: Shenyang Putaian Technology Co.,Ltd. Address before: Shenyang City, Liaoning City Road 110011, Shenhe District 35 block A No. 3 Patentee before: Zhang Chen |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20161221 Address after: After Hill Road Guankou town 39-4 Jimei District of Xiamen City, Fujian province 361022 Patentee after: XIAMEN JIANDA SENSING TECHNOLOGY CO., LTD. Address before: Shen Liaodong road Tiexi District of Shenyang City, Liaoning province 110022 47-2 Acer international city 31-2 Patentee before: Shenyang Putaian Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210915 Address after: 361000 No. 39, houshantou Road, Guankou Town, Jimei District, Xiamen City, Fujian Province Patentee after: GUOANDA Co.,Ltd. Address before: 361022 39-4, houshantou Road, Guankou Town, Jimei District, Xiamen City, Fujian Province Patentee before: XIAMEN JIANDA SENSING TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |