CN101404106A - Fire alarm detection method for smoke discharging pipe - Google Patents
Fire alarm detection method for smoke discharging pipe Download PDFInfo
- Publication number
- CN101404106A CN101404106A CNA2008101947821A CN200810194782A CN101404106A CN 101404106 A CN101404106 A CN 101404106A CN A2008101947821 A CNA2008101947821 A CN A2008101947821A CN 200810194782 A CN200810194782 A CN 200810194782A CN 101404106 A CN101404106 A CN 101404106A
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- China
- Prior art keywords
- discharging pipe
- smoke discharging
- pipeline
- detection method
- fire alarm
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- 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.)
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Abstract
The invention discloses a fire detection method for a smoke exhaust pipeline, which comprises the following steps: at least one temperature sensing line turns back between two ends of the pipeline back and forth along the pipeline until the temperature sensing line is fully distributed in the whole smoke exhaust pipeline; and two ends of all the temperature sensing lines are connected with fire detection controllers which are arranged at the outside of the pipeline. The temperature sensing line of the invention is full of the whole smoke exhaust pipeline and does not have detection blind areas, when the change of the temperature of any place in the smoke exhaust pipeline is abnormal, the temperature sensing line can transmit the signals to the fire detection controllers in time and interference is carried out by the fire detection controllers.
Description
Technical field
The present invention relates to a kind of fire alarm detection method, refer more particularly to a kind of fire alarm detection method of smoke discharging pipe.
Background technology
At present, when smoke discharging pipe is carried out fire detection, all be in smoke discharging pipe, to penetrate many thermopairs usually, monitor the generation that has or not fire alarm by the way of thermocouple temperature measurement.Clearly, thermopair can not be covered with in smoke discharging pipe, in other words, thermopair can only be surveyed several isolated points in the smoke discharging pipe, in the smoke discharging pipe most of zone all be thermopair observing and controlling less than the blind area, certain, after the intensity of a fire is got up, thermopair also can monitor, but late, has lost best fire extinguishing opportunity.
Summary of the invention
A technical matters to be solved by this invention is: a kind of fire alarm detection method that does not have blind area, willing smoke discharging pipe is provided.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of fire alarm detection method of smoke discharging pipe, with at least one temp.-sensing wire along pipeline, between the two ends of pipeline, turn back back and forth, until being covered with whole smoke discharging pipe, and the two ends of all temp.-sensing wires fire detection controller outer with placing pipeline links to each other.
Stranded the forming of plain conductor that described temp.-sensing wire is coated with thermo-sensitive material by two strands of skins.
Described temp.-sensing wire comprises two plain conductors spaced apart from each other, and with insulating heat-conduction material these two plain conductors is coated on wherein.
The invention has the beneficial effects as follows: temp.-sensing wire of the present invention is covered with whole smoke discharging pipe, there is not detection blind area, the any old place temperature variation is unusual in the smoke discharging pipe, and temp.-sensing wire can both in time be delivered to signal the fire detection controller, and is intervened by the fire detection controller.
Embodiment
Embodiment 1:
The fire alarm detection method of a kind of smoke discharging pipe of the present invention, with two temp.-sensing wires along pipeline, turn back back and forth between the two ends of pipeline, until being covered with whole smoke discharging pipe, and the two ends of these the two temp.-sensing wires fire detection controller outer with placing pipeline links to each other; Described temp.-sensing wire is coated with stranded the forming of plain conductor of the thermo-sensitive material of suitable fusing point (fusing point that is the temp.-sensing wire clad should be greater than normal flue-gas temperature of discharging from smoke discharging pipe, and is lower than the temperature when catching fire in the smoke discharging pipe) by two strands of skins; Described plain conductor is generally steel wire.
Principle of work of the present invention is: when any one the regional temperature shock in the smoke discharging pipe surpasses the fusing point of thermo-sensitive material, thermo-sensitive material melts rapidly, make two plain conductor short circuits, the fire detection controller is intervened after receiving this signal immediately, thereby has prevented the generation of fire effectively.
Embodiment 2:
The fire alarm detection method of a kind of smoke discharging pipe of the present invention, with a temp.-sensing wire along pipeline, turn back back and forth between the two ends of pipeline, until being covered with whole smoke discharging pipe, and the two ends of this root temp.-sensing wire fire detection controller outer with placing pipeline links to each other; Described temp.-sensing wire comprises two plain conductors spaced apart from each other, and with insulating heat-conduction material these two plain conductors is coated on wherein; Described plain conductor is generally steel wire.
Principle of work of the present invention is: two plain conductors spaced apart from each other in the temp.-sensing wire form a capacitor, owing to be subjected to the influence of the thermal current in the smoke discharging pipe, spacing changes between the plain conductor, cause the capacitance of this capacitor to change, when the capacitance cataclysm of capacitor during to the higher limit set, the fire detection controller is intervened immediately, thereby has prevented the generation of fire effectively.
Claims (3)
1. the fire alarm detection method of a smoke discharging pipe along pipeline, is turned back at least one temp.-sensing wire between the two ends of pipeline back and forth, and until being covered with whole smoke discharging pipe, and the two ends of all temp.-sensing wires fire detection controller outer with placing pipeline links to each other.
2. fire alarm detection method as claimed in claim 1 is characterized in that: stranded the forming of plain conductor that described temp.-sensing wire is coated with thermo-sensitive material by two strands of skins.
3. fire alarm detection method as claimed in claim 1 is characterized in that: described temp.-sensing wire comprises two plain conductors spaced apart from each other, and with insulating heat-conduction material these two plain conductors is coated on wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101947821A CN101404106A (en) | 2008-10-20 | 2008-10-20 | Fire alarm detection method for smoke discharging pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101947821A CN101404106A (en) | 2008-10-20 | 2008-10-20 | Fire alarm detection method for smoke discharging pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101404106A true CN101404106A (en) | 2009-04-08 |
Family
ID=40538109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101947821A Pending CN101404106A (en) | 2008-10-20 | 2008-10-20 | Fire alarm detection method for smoke discharging pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101404106A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615806A (en) * | 2013-08-09 | 2014-03-05 | 威能(北京)供暖设备有限公司 | Safety protection device for gas water heater exhaust pipe |
-
2008
- 2008-10-20 CN CNA2008101947821A patent/CN101404106A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615806A (en) * | 2013-08-09 | 2014-03-05 | 威能(北京)供暖设备有限公司 | Safety protection device for gas water heater exhaust pipe |
| CN103615806B (en) * | 2013-08-09 | 2016-02-24 | 威能(北京)供暖设备有限公司 | Safety protection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090408 |