CN113096347A - Wide-width netted fire detector - Google Patents
Wide-width netted fire detector Download PDFInfo
- Publication number
- CN113096347A CN113096347A CN202010459295.4A CN202010459295A CN113096347A CN 113096347 A CN113096347 A CN 113096347A CN 202010459295 A CN202010459295 A CN 202010459295A CN 113096347 A CN113096347 A CN 113096347A
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- Prior art keywords
- line
- wide
- width
- detector
- fire
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Links
- 239000004020 conductor Substances 0.000 claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims abstract description 8
- 229920001967 Metal rubber Polymers 0.000 claims description 6
- 239000012774 insulation material Substances 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 abstract description 12
- 238000001514 detection method Methods 0.000 abstract description 10
- 239000002184 metal Substances 0.000 abstract description 7
- 229910052751 metal Inorganic materials 0.000 abstract description 7
- 239000000463 material Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- 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
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fire-Detection Mechanisms (AREA)
Abstract
A wide-width mesh fire detector comprising: a conversion box, a wide-width mesh detector, a concentrator and a resistor R. The wide-width mesh detector is characterized by comprising the following structures: a plurality of elastic metal conductors coated with a meltable insulating material layer on the outer surface are used as longitudinal lines, one elastic metal conductor coated with a meltable insulating material layer is used as a transverse line, the transverse line and the longitudinal line are woven into a net-shaped structure in an alternate inserting mode, two ends of the longitudinal line of the net-shaped structure are respectively connected together in a line concentration mode, and finally two ends of the transverse line and two ends of the longitudinal line after line concentration are respectively connected with a conversion box and an open circuit detection resistor, so that the wide-width net-shaped fire detector with multiple points in a plane is formed. When fire occurs, the cross point of the transverse line and the longitudinal line is heated and the insulating material layer is softened or melted, the cross point of the transverse line and the longitudinal line is short-circuited under the prestress action of the elastic metal conductor, and the switching box judges and outputs a fire alarm signal.
Description
Technical Field
The invention relates to a fire alarm device, in particular to a wide-width netted fire detector which can cover a detection monitoring area by 100 percent.
Technical Field
In the prior art implementation of a line type fire detector, as shown in fig. 1: the width of a general large-scale cable bridge is 0.5 m-1.5 m, taking a cable bridge 11 with a length L1 of 3m and a width W1 of 0.5m as an example, wherein a linear fire detector 13 is generally laid in a sine wave manner, and the distance between two wave crests L2 is 1.5 m. Overhead area of bridgeIs 1.5m2In the conventional line type fire detector 13, most of the conventional line type fire detector 13 has a diameter of 4mm to 6mm, and in fig. 1, the line type fire detector 13 has a diameter of 5mm as an example, and a plan view area of 0.018m2Only 0.012% of the area of the bridge is covered, there is a very large uncovered area 12. In order to increase the protection area, two line-type fire detectors 13 are laid in a sine wave manner in the cable bridge, but the protection area only covers 0.024% of the overlooking area of the cable bridge, and a large uncovered area also exists.
In fig. 1, a conventional line type fire detector 13 is taken as an example: when a point of a certain cable 14 in the cable bridge is overheated or a fire breaks out, the existing line-type fire detection technology can detect the fire only when the point of the fire is just under the line-type temperature-sensitive detector 13, and if the point of the cable in the bridge where the fire breaks out is in the uncovered area 12, the fire can be detected only when the line-type temperature-sensitive detector 13 is spread, so that the fire is not detected in the first time.
In view of the above, there is a great safety risk in the prior art, and therefore a wide fire detector capable of covering a detection monitoring area by 100% is required.
Disclosure of Invention
The present invention is directed to a wide-width mesh-type fire detector, including: a conversion box, a wide-width mesh detector, a concentrator and a resistor R. The wide-width mesh detector is characterized by comprising the following structures: a plurality of elastic metal conductors coated with a meltable insulating material layer on the outer surface are used as longitudinal lines, one elastic metal conductor coated with a meltable insulating material layer is used as a transverse line, the transverse line and the longitudinal line are woven into a net-shaped structure in an alternate inserting mode, two ends of the longitudinal line of the net-shaped structure are respectively connected together in a line concentration mode, and finally two ends of the transverse line and two ends of the longitudinal line after line concentration are respectively connected with a conversion box and an open circuit detection resistor, so that the wide-width net-shaped fire detector with multiple points in a plane is formed. A wide-width netted fire detector features that when a fire occurs, the cross point of transverse and longitudinal lines is heated to soften or melt the insulating material layer, the cross point of transverse and longitudinal lines is short-circuited under the action of the prestress of elastic metallic conductor, and a switching box judges the alarm signal of fire.
Compared with the prior art, the invention has the following advantages:
the wide-width netted fire detector disclosed by the invention adopts wide-width netted fire detection, overcomes the defect that the line type temperature sensing fire detection in the prior art can only detect the fire change in a very small range around a linear body, can cover the fire change in a detection area by 100%, and obviously improves the accuracy and reliability of fire detection.
Drawings
FIG. 1 is a schematic view of a prior art line type fire detector applied in a cable tray;
fig. 2 is a schematic view of a wide-width mesh fire detector.
Detailed Description
The invention discloses a wide-width mesh fire detector, which is implemented as shown in figure 2: the device is formed by connecting a conversion box 5, a wide-width mesh detector 4, a concentrator 3 and a resistor R. It is characterized in that the wide-width mesh detector 4 has the structure: the method comprises the following steps of taking a plurality of metal elastomer conductors 1 covering a meltable insulation material layer 2 as longitudinal lines, taking another metal elastomer 1 covering the meltable insulation material layer 2 as transverse lines, weaving the transverse lines and the longitudinal lines in an alternate inserting mode to form a net-shaped plane with the width W of 0.2-1.5 m and the length L of 20-500 m, enabling each contact point of the transverse lines and the longitudinal lines to have elastic prestress, connecting two ends of the longitudinal lines in the net-shaped structure to hubs 3 at two ends respectively, connecting the two ends of the transverse lines and the two ends of the longitudinal lines after line concentration in a welding or pressing mode, and finally connecting a conversion box 5 and a resistor R to form the wide-width net-shaped fire detector with multiple points and a plane. When a fire occurs, the cross point of the transverse line and the longitudinal line is heated, the melting insulating material layer 2 is softened or melted, the cross point of the transverse line and the longitudinal line is short-circuited under the prestress action of the elastic metal conductor, and the conversion box 5 judges and outputs a fire alarm signal.
The melting point temperature range of the meltable insulating material layer 2 is 50-200 ℃, and wide-width mesh detectors with different alarm temperatures are manufactured; the distance between the woven meshes is made to be between 5mm and 20mm so as to meet the requirements of different fire detection environments.
The invention discloses a characteristic description of a metal elastomer conductor and a meltable insulating material layer:
1. layer of fusible insulating material: the melting point of the meltable insulating material is 50-200 ℃, and the volume resistivity is 1010～1018All plastic and rubber materials of omega cm are selected with the coating thickness of the meltable insulating material of 0.2-1.2 mm.
2. Metal elastomer conductor: the material can be galvanized steel wire, alloy copper wire and stainless steel wire, and the specification is between phi 0.5 mm and 1.2 mm.
3. The material of the concentrator: a metal conductor.
Claims (1)
1. A wide-width netted fire detector is formed by connecting a conversion box (5), a wide-width netted detector (4), a concentrator (3) and a resistor (R), and is technically characterized in that the wide-width netted detector (4): a plurality of metal elastomer conductors (1) coated with the meltable insulation material layer (2) are used as longitudinal lines, the other metal elastomer conductor (1) coated with the meltable insulation material layer (2) is used as a transverse line, and then the transverse line and the longitudinal line are alternately woven in an inserting mode to form the reticular fire detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010459295.4A CN113096347A (en) | 2020-05-19 | 2020-05-19 | Wide-width netted fire detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010459295.4A CN113096347A (en) | 2020-05-19 | 2020-05-19 | Wide-width netted fire detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113096347A true CN113096347A (en) | 2021-07-09 |
Family
ID=76664128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010459295.4A Pending CN113096347A (en) | 2020-05-19 | 2020-05-19 | Wide-width netted fire detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113096347A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004030559A (en) * | 2002-01-11 | 2004-01-29 | Mitsuo Hayashi | Fire detection matting and fire alarm using the matting |
| CN1967607A (en) * | 2005-11-14 | 2007-05-23 | 李刚进 | A analog linetype temperature-fixing fire detecting cable |
| JP2007313379A (en) * | 2006-05-23 | 2007-12-06 | Daikin Ind Ltd | Electrostatic filter |
| JP2015014918A (en) * | 2013-07-05 | 2015-01-22 | 能美防災株式会社 | Fire detection device and fire detection method |
| CN104484973A (en) * | 2014-12-23 | 2015-04-01 | 王文波 | Composite cable type heat fire detector |
| CN212847046U (en) * | 2020-05-19 | 2021-03-30 | 沈阳普泰安科技有限公司 | Wide-width netted fire detector |
-
2020
- 2020-05-19 CN CN202010459295.4A patent/CN113096347A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004030559A (en) * | 2002-01-11 | 2004-01-29 | Mitsuo Hayashi | Fire detection matting and fire alarm using the matting |
| CN1967607A (en) * | 2005-11-14 | 2007-05-23 | 李刚进 | A analog linetype temperature-fixing fire detecting cable |
| JP2007313379A (en) * | 2006-05-23 | 2007-12-06 | Daikin Ind Ltd | Electrostatic filter |
| JP2015014918A (en) * | 2013-07-05 | 2015-01-22 | 能美防災株式会社 | Fire detection device and fire detection method |
| CN104484973A (en) * | 2014-12-23 | 2015-04-01 | 王文波 | Composite cable type heat fire detector |
| CN212847046U (en) * | 2020-05-19 | 2021-03-30 | 沈阳普泰安科技有限公司 | Wide-width netted fire detector |
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