CN103077587B - Gas monitoring alarm device and application method thereof - Google Patents
Gas monitoring alarm device and application method thereof Download PDFInfo
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- CN103077587B CN103077587B CN201210582059.7A CN201210582059A CN103077587B CN 103077587 B CN103077587 B CN 103077587B CN 201210582059 A CN201210582059 A CN 201210582059A CN 103077587 B CN103077587 B CN 103077587B
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Abstract
The invention specifically relates to a gas monitoring alarm device and an application method thereof, which are used for monitoring whether gases harmful to human bodies are included in air at a construction site or not. The device comprises an alarm circuit and a fire source, wherein the alarm circuit consists of a power supply, a first alarm, a second alarm and a thermo-switch; the first alarm and the second alarm form a parallel circuit; the circuit, the power supply and the thermo-switch form a series circuit; and the fire source is positioned just below the thermo-switch. The device has the advantages of simple structure, low cost and capabilities of monitoring types and rough contents of the gases included in the air at the construction site in real time and emitting an alarm and effectively preventing construction personnel from inhaling the gases harmful to the human bodies.
Description
Technical field
The invention belongs to safety monitoring during construction field, be specifically related to a kind of gas monitoring alarm device and application process thereof.
Background technology
Deep-cut in excavation work all kinds of, as hole stake, deep basal pit or tunnel etc., conventionally tunnelling footage is larger, its inner air flow is in poor shape, air includes the assorted all kinds of gas that has, in air, may occur that carbon dioxide content crosses high situation, also may oxygen content in air lower, in air, maybe may there is again the toxic gas constituting a threat to for health.Therefore, before workmen enters construction site, should detect in advance the security of air in construction site, in case workmen's health is encroached on.Therefore, numerous workmens are badly in need of a kind of simple and easy monitoring alarm that can simply measure gas content in construction site.
Summary of the invention
The object of the invention is according to above-mentioned the deficiencies in the prior art part, a kind of gas monitoring alarm device and application process thereof are provided, this device regulates temperature-sensitive change-over switch to connect each alarm by the firepower size of burning things which may cause a fire disaster in real time, reaches the monitoring to measuring position gas content.
The object of the invention realizes and being completed by following technical scheme:
A kind of gas monitoring alarm device, it is characterized in that described device comprises warning circuit and burning things which may cause a fire disaster, described warning circuit is made up of a power supply, the first alarm, the second alarm and temperature-sensitive change-over switch, described the first alarm and the second alarm form parallel circuit, this circuit and described power supply and described temperature-sensitive change-over switch form series circuit, and wherein said burning things which may cause a fire disaster is positioned under described temperature-sensitive change-over switch.
Described temperature-sensitive change-over switch is specially a thermo-responsive bimetallic strip.
Described warning circuit and burning things which may cause a fire disaster are packaged in a casing, and described casing is put together by upper box and lower box.
On described casing, be positioned at described burning things which may cause a fire disaster place and offer some air holes.
Relate to an application process for above-mentioned gas monitoring alarm, it is characterized in that at least comprising the steps: in environment to be monitored, by the burning of described burning things which may cause a fire disaster, described temperature-sensitive change-over switch is heated and opens; If all the time in open mode, show that described burning things which may cause a fire disaster firepower is constant in the change-over switch of temperature-sensitive described in observation process, monitoring result is that in described monitoring of environmental, the interior contained gas of air is normal; If described temperature-sensitive change-over switch is connected the first warning branch road, described the first alarm I that will sound the alarm, shows that described burning things which may cause a fire disaster firepower becomes large, monitoring result be in described monitoring of environmental in air inflammable gas content higher; If described temperature-sensitive change-over switch is connected the second warning branch road, described the second alarm II that will sound the alarm, shows that described burning things which may cause a fire disaster firepower diminishes or extinguishes, monitoring result be in described monitoring of environmental in air non-combustible gas content higher or oxygen content is lower.
Advantage of the present invention is, apparatus structure is simple, and cost is low, can be in construction site contained gaseous species and content send warning roughly in Real-Time Monitoring air, effectively avoid workmen to suck the gas that human body is formed to injury.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Embodiment
Feature of the present invention and other correlated characteristic are described in further detail by embodiment below in conjunction with accompanying drawing, so that technician's of the same trade understanding:
As Fig. 1, in figure, mark 1-11 is respectively: warning circuit 1, power supply 2, the first warning branch road 3, the first alarm 4, the second alarm 5, casing 6, the second warning branch road 7, burning things which may cause a fire disaster 8, air hole 9, main line 10, temperature-sensitive change-over switch 11.
Embodiment: as shown in Figure 1, the present embodiment is specifically related to a kind of gas monitoring alarm device and application process thereof, this device is made up of warning circuit 1 and burning things which may cause a fire disaster 8, and both are packaged in casing 6, and casing 6 is put together by upper and lower casing.
Warning circuit 1 is arranged in the upper box of casing 6, specifically comprise power supply 2, the first alarm 4, the second alarm 5 and temperature-sensitive change-over switch 11, the first alarm 4 and the second alarm 5 form parallel circuit, this parallel circuit and power supply 2 and temperature-sensitive change-over switch 11 form series circuit, wherein the first alarm 4 is arranged in the first warning branch road 3 of this parallel circuit, the second alarm 5 is arranged in the second warning branch road 7 of this parallel circuit, temperature-sensitive change-over switch 11 is specially thermo-responsive bimetallic strip, the lower metal sheet of thermo-responsive bimetallic strip is active layers, upper strata sheet metal is passive layer, active layers sheet metal thermal expansivity is greater than passive layer sheet metal, therefore temperature-sensitive change-over switch is heated and will be upwarped, one end of temperature-sensitive change-over switch 11 is connected on main line 10, the other end is for selecting to connect structure, under normal temperature state, be overlapped on the second warning branch road 7, thermo-responsive bimetallic strip is heated and deforms, there is different distortion according to heating degree, concrete deformable is connected on the first warning branch road 3, and also deformable is connected on the second warning branch road 7, can be deformed to again between two warning branch roads.
Burning things which may cause a fire disaster 8 is specially an oil lamp, is arranged in the lower box of casing 6, be positioned at temperature-sensitive change-over switch 11 under, simultaneously on the lower box of casing 6, offer some air holes 9, in order to circulation of air.
As shown in Figure 1, the application process of this gas monitoring alarm device is specific as follows:
In environment to be monitored, by the burning of burning things which may cause a fire disaster 8, temperature-sensitive change-over switch 11 is heated and opens; If temperature-sensitive change-over switch 11 is all the time in open mode in observation process,, between the first warning branch road 3 and the second warning branch road 7, show that the firepower of burning things which may cause a fire disaster 8 is constant, monitoring result is that in monitoring of environmental, the interior contained gas of air is normal; Connect the first warning branch road 3, the first alarms 4 I that will sound the alarm if 11 temperature distortions of temperature-sensitive change-over switch upwarp, show that the firepower of burning things which may cause a fire disaster 8 becomes large, monitoring result be in monitoring of environmental in air inflammable gas content higher; If sagging connection the second warning branch road 7 of described temperature-sensitive change-over switch 11 shrinkage, the second alarm 5 II that will sound the alarm, the firepower that shows burning things which may cause a fire disaster 8 diminishes or extinguishes, monitoring result be in monitoring of environmental in air non-combustible gas content higher or oxygen content is lower.
Claims (4)
1. the application process of a gas monitoring alarm device, described device comprises warning circuit and burning things which may cause a fire disaster, described warning circuit is by a power supply, the first alarm, the second alarm and temperature-sensitive change-over switch form, described the first alarm and the second alarm form parallel circuit, this circuit and described power supply and described temperature-sensitive change-over switch form series circuit, wherein said burning things which may cause a fire disaster is positioned under described temperature-sensitive change-over switch, it is characterized in that described method comprises the steps: in environment to be monitored, by the burning of described burning things which may cause a fire disaster, described temperature-sensitive change-over switch is heated to be opened, if all the time in open mode, show that described burning things which may cause a fire disaster firepower is constant in the change-over switch of temperature-sensitive described in observation process, monitoring result is that in described monitoring of environmental, the interior contained gas of air is normal, if described temperature-sensitive change-over switch is connected the first warning branch road, described the first alarm I that will sound the alarm, shows that described burning things which may cause a fire disaster firepower becomes large, monitoring result be in described monitoring of environmental in air inflammable gas content higher, if described temperature-sensitive change-over switch is connected the second warning branch road, described the second alarm II that will sound the alarm, shows that described burning things which may cause a fire disaster firepower diminishes or extinguishes, monitoring result be in described monitoring of environmental in air non-combustible gas content higher or oxygen content is lower.
2. the application process of a kind of gas monitoring alarm device according to claim 1, is characterized in that described temperature-sensitive change-over switch is specially a thermo-responsive bimetallic strip.
3. the application process of a kind of gas monitoring alarm device according to claim 1, is characterized in that described warning circuit and burning things which may cause a fire disaster are packaged in a casing, and described casing is put together by upper box and lower box.
4. according to the application process of a kind of gas monitoring alarm device described in claim 1 or 3, it is characterized in that being positioned at described burning things which may cause a fire disaster place and offer some air holes on described casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210582059.7A CN103077587B (en) | 2012-12-28 | 2012-12-28 | Gas monitoring alarm device and application method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210582059.7A CN103077587B (en) | 2012-12-28 | 2012-12-28 | Gas monitoring alarm device and application method thereof |
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| Publication Number | Publication Date |
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| CN103077587A CN103077587A (en) | 2013-05-01 |
| CN103077587B true CN103077587B (en) | 2014-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210582059.7A Active CN103077587B (en) | 2012-12-28 | 2012-12-28 | Gas monitoring alarm device and application method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101593403A (en) * | 2000-09-29 | 2009-12-02 | 托马克斯有限责任公司 | The warning system that is used for gas and/or products of combustion |
| CN203084870U (en) * | 2012-12-29 | 2013-07-24 | 中铁二十四局集团有限公司 | Gas monitoring and alarm device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07262471A (en) * | 1994-02-07 | 1995-10-13 | Fukutaro Nagashima | Smoke temperature limit annunciator for pyroligneous acid recovering device |
| JP2002364839A (en) * | 2001-06-12 | 2002-12-18 | Japan Gas Association | Gas-combustor monitor and baffler-exhaust-leak monitoring method |
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2012
- 2012-12-28 CN CN201210582059.7A patent/CN103077587B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101593403A (en) * | 2000-09-29 | 2009-12-02 | 托马克斯有限责任公司 | The warning system that is used for gas and/or products of combustion |
| CN203084870U (en) * | 2012-12-29 | 2013-07-24 | 中铁二十四局集团有限公司 | Gas monitoring and alarm device |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2002-364839A 2002.12.18 * |
| JP特开平7-262471A 1995.10.13 * |
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| CN103077587A (en) | 2013-05-01 |
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