CN101618258B - Passive thermal-sensitive fire extinguishing starter - Google Patents
Passive thermal-sensitive fire extinguishing starter Download PDFInfo
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- CN101618258B CN101618258B CN2009100235519A CN200910023551A CN101618258B CN 101618258 B CN101618258 B CN 101618258B CN 2009100235519 A CN2009100235519 A CN 2009100235519A CN 200910023551 A CN200910023551 A CN 200910023551A CN 101618258 B CN101618258 B CN 101618258B
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- fusible alloy
- shell
- pull bar
- fire extinguishing
- sensitive
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Abstract
The invention provides a passive thermal-sensitive fire extinguishing starter. The fire extinguishing starter is provided with a housing; a magnetic power source consisting of a magnetic bar and an armature arranged on the neutral axis position of the housing; the magnetic bar can move relatively to the armature; a spring is mounted at the tail part of the magnetic bar; a pull rod is fixedly connected to the tail end of the magnetic bar; the tail part of the pull rod is extended from the upper end surface of the housing; and a fusible alloy locating structure capable of axially locating the pull rod is arranged at the extending part. The magnetic bar is located in an upper contracting position in the housing by the fusible alloy at the normal temperature; and when the ambient temperature reaches the preset temperature, the fusible alloy melts, so that the magnetic bar is released and moves downwards under the action of the spring, and then, the magnetic bar passes through the armature to generate the induction starting current, thereby completing the task of starting the passive thermal-sensitive fire extinguishment. The invention systematically integrates the fusible alloy and the magnetic power source, thereby not only expanding the temperature-control range of a starter, but also greatly simplifying the structure and further improving the operating reliability of a magnetic power source.
Description
Technical field
The present invention relates to a kind of thermal-sensitive fire extinguishing starter, specifically, it is a kind of passive thermal-sensitive fire extinguishing starter.
Background technology
At present, the super-sonic dry-chemical fire extinguisher is widely-used, and the startup of this fire extinguisher is lighted solid fuel with electric igniter and started.In prior art, the starter of super-sonic dry-chemical fire extinguisher is divided into two kinds, and a kind of is active starter, and a kind of is passive starter.No matter be active starter or passive starter, during startup, all need starter to provide a starting current to electric igniter.The applicant is a kind of passive thermal-sensitive fire extinguishing starter at the Chinese patent 200810150150.5 of first to file, this starter has adopted magnetoelectricity source and memorial alloy (temperature sensitization apparatus) structure combining, during normal temperature, the memorial alloy structure is locked in the bar magnet in magnetoelectricity source on the position of contracting, after environment temperature reaches preset value, the memorial alloy release bar magnet that deforms, then bar magnet passes armature, produce induced-current, make electric igniter get electric and light a fire.Though it has also finished the task that passive thermal-sensitive fire extinguishing starts preferably, because memorial alloy restriction technically, its temperature-sensitive scope less (below 100 ℃), thus limited the range of application of this starter.In addition, produced the structure that starts action by memorial alloy deformation also simple inadequately, as: the bar magnet pin will stretch out the shell load on C shape memorial alloy, make on the case peripheral wall and must have the bar shaped cotter way, destroyed the sealing of shell thus, so, also need install the sealing that an oversheath reaches shell additional; And for example:, on shell, little hole enlargement step or the like need be set in order to improve the sensitivity of action.
In addition, in prior art, also have a kind of fusible alloy, also Chang Zuowei temperature-sensing element, its responsive to temperature wider range (50 ℃～290 ℃), and also temperature-sensitive is accurate, and it is commonly used for the plug of applicator, as Chinese patent 200710192240.6.When environment temperature reaches preset temperature, the fusible alloy fusing, under the effect of hydraulic pressure, plug separates, comes off, and makes the shower nozzle water spray.But this temperature-sensing element is not also used on the fire extinguishing starter.
Summary of the invention
The objective of the invention is provides a kind of improved passive thermal-sensitive fire extinguishing starter in order to overcome the shortcoming in the prior art, to improve performance, simplified structure.
For achieving the above object, technical scheme of the present invention is as follows:
It has a shell, a magnetoelectricity source that is made of bar magnet and armature is housed at the axis position of shell, described armature is fixed in the described shell, in shell, be provided with the axially movable stroke of described bar magnet chamber, between the afterbody of described bar magnet and shell inner roof wall, a spring is housed, its improvement is: the tail end of described bar magnet connects firmly a pull bar, the afterbody of this pull bar stretches out the shell upper surface, and is provided with a fusible alloy location structure that can make described pull bar obtain axial location in the extending area.
Further improved technical scheme of the present invention is as follows:
Described fusible alloy location structure is made of metal guide pipe that is enclosed within described pull bar afterbody and the fusible alloy thermal sensitive piece that connects firmly at the pull bar tail end.
Described fusible alloy location structure is by fusible alloy temperature-sensitive sleeve pipe that is enclosed within described pull bar afterbody and the block that connects firmly at the pull bar tail end.
Be attached with a metal heat build-up sheet in the upper surface of described shell.
The present invention's characteristics compared with the prior art are as follows:
One, the present invention organically combines fusible alloy and magnetoelectricity source, not only widened the temperature-control range of starter, structure is simplified greatly, particularly removed the bar magnet pin, avoid on case peripheral wall, opening the bar shaped cotter way and used oversheath, improved the sealing property of shell, the functional reliability in magnetoelectricity source is further improved.
Two, in order further to improve the sensitivity of this starter, the present invention is further increasing metal heat build-up sheet in the improvement project, the heat conductivility that utilizes this metal heat build-up sheet is transmitted to the amount of heat of its impression on the fusible alloy rapidly, be equivalent to enlarge the temperature-sensitive area of fusible alloy, strengthened the sensitiveness of fusible alloy to environment temperature, therefore, can improve the sensitivity of this starter.
Description of drawings
One of Fig. 1, overall structure cutaway view of the present invention.
Two of Fig. 2, overall structure cutaway view of the present invention.
The specific embodiment
Referring to Fig. 1, it has a shell, this routine shell is fastened to connect firmly by base 1 and loam cake 2 and constitutes, a magnetoelectricity source that is made of bar magnet 3 and armature 4 is housed at the axis position of this shell, armature 4 is enclosed within on the bar magnet 3, and described armature 4 is fixed in the armature chamber that is formed by base 1 and loam cake 2 fastening backs, and it is fixed in shell, in shell, be provided with bar magnet 3 axially movable stroke chambeies 5, bar magnet 3 can be moved axially; Afterbody at described bar magnet is equipped with a spring 6, can stablize installation in order to make this spring 6, tail end at described bar magnet 3 is provided with a undergauge round platform 3-1, on described loam cake inner roof wall, be provided with a circular groove 2-1, the lower end of spring 6 is enclosed within on this undergauge round platform 3-1, its upper end is stretched among the circular groove 2-1, and then spring 6 axially and is radially all obtaining the location; The tail end of described bar magnet 3 connects firmly a pull bar 7, this pull bar afterbody stretches out the upper surface of loam cake 2, and being provided with a fusible alloy location structure that can make pull bar obtain axial location in the extending area of pull bar, this fusible alloy location structure is made of metal guide pipe 8 that is enclosed within pull bar 7 afterbodys and the fusible alloy thermal sensitive piece 9 that connects firmly at pull bar 7 tail ends.During installation, last lifting rod 7 makes bar magnet 3 compression springs 6 be in the position (being illustrated state) of contracting, and is fixing with fusible alloy thermal sensitive piece 9 again.When environment temperature reaches the melt temperature of thermal sensitive piece 9, thermal sensitive piece 9 fusings, discharge pull bar 7, bar magnet 3 moves down rapidly under the effect of spring 6 and passes armature, then produce induced-current in the armature 4, and give igniter head by lead 10, make igniter head get electric and light a fire, thereby finish the purpose that temperature-sensitive starts.As can be seen from the figure, the fairlead of the lead of being opened on shell 10 can be used epoxy sealing, and the via hole of the pull bar of being opened 7 is by pull bar and fusible alloy sealing, thus the good seal performance of shell, and processing and fabricating is simple.
In order to improve the sensitivity of this starter, on the upper surface of described loam cake 2, be attached with a metal heat build-up sheet 11, this metal heat build-up sheet can be transmitted to amount of heat on the temperature-sensitive ring 9 as early as possible, makes its action more accurately, reliably.
Referring to Fig. 2, described fusible alloy location structure can also be made of fusible alloy temperature-sensitive sleeve pipe 13 that is enclosed within pull bar 7 afterbodys and the block 12 that connects firmly at pull bar 7 tail ends.Just often, temperature-sensitive sleeve pipe 13 tie-struts 7, the position that bar magnet is positioned at contract, when environment temperature was elevated to preset temperature, 13 fusings of fusible alloy temperature-sensitive sleeve pipe discharged pull bar 7 and send starting current.
Claims (4)
1. passive thermal-sensitive fire extinguishing starter, has a shell (1,2), a magnetoelectricity source that is made of bar magnet (3) and armature (4) is housed at the axis position of shell, described armature is fixed in the described shell, in shell, be provided with the axially movable stroke of described bar magnet chamber (5), between the afterbody of described bar magnet and shell inner roof wall, a spring (6) is housed, it is characterized in that: the tail end of described bar magnet connects firmly a pull bar (7), the afterbody of this pull bar stretches out the shell upper surface, and is provided with a fusible alloy location structure that can make described pull bar obtain axial location in the extending area.
2. passive thermal-sensitive fire extinguishing starter according to claim 1 is characterized in that: described fusible alloy location structure is by the metal guide pipe (8) that is enclosed within described pull bar (7) afterbody and connect firmly at the fusible alloy thermal sensitive piece (9) of pull bar (7) tail end and constitute.
3. passive thermal-sensitive fire extinguishing starter according to claim 1 is characterized in that: described fusible alloy location structure is by the fusible alloy temperature-sensitive sleeve pipe (13) that is enclosed within described pull bar (7) afterbody and connect firmly at the block (12) of pull bar (7) tail end and constitute.
4. according to claim 1,2 or 3 described passive thermal-sensitive fire extinguishing starters, it is characterized in that: the upper surface at described shell (1,2) is attached with a metal heat build-up sheet (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100235519A CN101618258B (en) | 2009-08-11 | 2009-08-11 | Passive thermal-sensitive fire extinguishing starter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100235519A CN101618258B (en) | 2009-08-11 | 2009-08-11 | Passive thermal-sensitive fire extinguishing starter |
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| Publication Number | Publication Date |
|---|---|
| CN101618258A CN101618258A (en) | 2010-01-06 |
| CN101618258B true CN101618258B (en) | 2011-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100235519A Expired - Fee Related CN101618258B (en) | 2009-08-11 | 2009-08-11 | Passive thermal-sensitive fire extinguishing starter |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105999592A (en) * | 2016-05-25 | 2016-10-12 | 连云港市天意消防器材有限公司 | Manufacturing method for environment-friendly superfine dry powder and stainless steel fire extinguisher |
| CN110761917A (en) * | 2019-11-05 | 2020-02-07 | 西安长峰机电研究所 | Passive temperature sensing starting device |
| CN111084954B (en) * | 2019-12-11 | 2021-05-07 | 国网浙江省电力有限公司双创中心 | Fire-fighting on-line monitoring system based on big data technology |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1524594A (en) * | 2003-02-27 | 2004-09-01 | 北京世纪联保消防新技术有限公司 | Temperature-sensing spontaneous starter of a pulse superfine dry powder automatic fire-extinguisher |
| CN101181659A (en) * | 2007-12-21 | 2008-05-21 | 东南大学 | Temperature sensing element of automatic spraying firefighting apparatus |
| CN201216830Y (en) * | 2008-06-27 | 2009-04-08 | 西安机电信息技术研究所 | Passive thermo-responsive initiator for extinguishment |
| CN201492850U (en) * | 2009-08-11 | 2010-06-02 | 西安机电信息技术研究所 | Passive heat sensitive fire-extinguishing starter |
-
2009
- 2009-08-11 CN CN2009100235519A patent/CN101618258B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1524594A (en) * | 2003-02-27 | 2004-09-01 | 北京世纪联保消防新技术有限公司 | Temperature-sensing spontaneous starter of a pulse superfine dry powder automatic fire-extinguisher |
| CN101181659A (en) * | 2007-12-21 | 2008-05-21 | 东南大学 | Temperature sensing element of automatic spraying firefighting apparatus |
| CN201216830Y (en) * | 2008-06-27 | 2009-04-08 | 西安机电信息技术研究所 | Passive thermo-responsive initiator for extinguishment |
| CN201492850U (en) * | 2009-08-11 | 2010-06-02 | 西安机电信息技术研究所 | Passive heat sensitive fire-extinguishing starter |
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| CN101618258A (en) | 2010-01-06 |
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Assignee: Xi'an Beifang Information Industry Co., Ltd. Assignor: Xi'an Institute of Electromechanical Information Technology Contract record no.: 2012610000057 Denomination of invention: Passive thermal-sensitive fire extinguishing starter Granted publication date: 20111019 License type: Exclusive License Open date: 20100106 Record date: 20120508 |
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Application publication date: 20100106 Assignee: Xi'an Beifang Information Industry Co., Ltd. Assignor: Xi'an Institute of Electromechanical Information Technology Contract record no.: 2012610000057 Denomination of invention: Passive thermal-sensitive fire extinguishing starter Granted publication date: 20111019 License type: Exclusive License Record date: 20120508 |
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