CN204833616U - Gaseous alarm of portable multi -functional inspection shaft - Google Patents
Gaseous alarm of portable multi -functional inspection shaft Download PDFInfo
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- CN204833616U CN204833616U CN201520587195.4U CN201520587195U CN204833616U CN 204833616 U CN204833616 U CN 204833616U CN 201520587195 U CN201520587195 U CN 201520587195U CN 204833616 U CN204833616 U CN 204833616U
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Abstract
The utility model discloses gaseous alarm of portable multi -functional inspection shaft relates to a gaseous detecting instrument, especially is applicable to harmful gas's when the inspection shaft operation detection. Including casing, power and circuit board, power and circuit board are installed in the casing, are equipped with gaseous detection module, data processing module and alarm module on the circuit board, casing one end is equipped with LED lamp and lamp shade, and the other end of casing covers for gas collection, and it has the aperture to cover to open at gas collection, the power is that gaseous detection module, data processing module, alarm module and LED lamp provide the electric energy, data processing module links to each other with gaseous detection module and alarm module respectively, and gaseous detection module is detecting data transmission to data processing module, and data processing module is handling message routing to alarm module, alarm module and LED lamp link to each other, and alarm module adopts reputation alarm module or pronunciation alarm module. Adopt the electrochemical detection principle, convenient to use, it is longe -lived, be fit for vast line and use widely.
Description
Technical field
The utility model portable multi-function inspection shaft gas alarm relates to a kind of gas detecting instrument, is especially applicable to the detection of the harmful gas when inspection shaft operation.
Background technology
Along with the acceleration of social city, underground pipeline is more and more intensive, and the accidents such as workman is poisoning often appear in inspection shaft borehole operation.Main cause is that underground air is in air-tight state for a long time, gas componant is complicated, main harmful gas is based on methane, sulfuretted hydrogen, carbon dioxide, its concentration is far super safety value often, the safe ventilation time accurately cannot be grasped by conventional meanses such as smell judgements, often cause irremediable loss, and the gas componant detecting instrument expensive price of specialty and detection data need professional to judge, be unfavorable for that daily inspection shaft borehole operation is universal and use.
Utility model content
The purpose of this utility model provides a kind of portable multi-function inspection shaft gas alarm for above-mentioned weak point, for multiple harmful gas detection, alarm, can bring life support to practitioner, be particularly suitable for daily inspection shaft borehole operation.
The utility model portable multi-function inspection shaft gas alarm takes following technical scheme to realize:
Portable multi-function inspection shaft gas alarm comprises housing, power supply and circuit board, and power supply and circuit board are arranged in housing, circuit board is equipped with gas detection module, data processing module and alarm module; Shell one end is equipped with LED and lampshade, and the other end of housing is gas collection lid, covers have aperture at gas collection, is convenient to gas collection, detection; Described power supply is gas detection module, data processing module, alarm module and LED provide electric energy; Data processing module is connected with gas detection module and alarm module respectively, and gas detection module is sent to data processing module detecting data, and data processing module is sent to alarm module process information; Alarm module is connected with LED, and alarm module adopts sound and light alarm module or voice alarm module;
Described data processing module has CPU and data-carrier store, and data processing module is sent to alarm module process information;
Described gas detection module comprises CH_4 detection submodule, sulfurated hydrogen detection submodule and carbon dioxide detection sub-module;
Described CH_4 detection submodule adopts the carrier scribbling catalyzer as sensitive element, and described catalyzer adopts the metallic catalysts such as Pt, Pd; Obtained the electric signal associated with gas density in catalytic reaction process by the change of the resistance value of sensitive element, CH_4 detection submodule sends described electric signal to data processing module.
Described sulfurated hydrogen detection submodule adopts commercially available ampere-type electrochemical sensor; Measured gas, through sulfurated hydrogen detection submodule, produces output signal, is sent to data processing module.
Described carbon dioxide detection module has carbon dioxide sensitive element and A/D converter, and the voltage signal of output is sent to data processing module by carbon dioxide detection module, described voltage signal and CO2 concentration value linear.
Described power acquisition dry cell or lithium battery.
The back side of described housing is provided with bandage or buckle, is convenient to carry with.
Be threaded connection between described lampshade and housing.
Described LED is replaceable.
Three kinds of detection module independent actions such as described methane, do not interfere with each other, and damage and only need change corresponding detection module, with low cost.
During the work of CH_4 detection submodule, there is solid catalysis reaction in methane gas, methane adsorption at catalyst surface, and react at catalyst surface, its reactant is also adsorbed on the surface on carrier.Carrier catalyst element can chemisorption methane, makes methane dissociation, be commonly referred to as dissociation chemisorption.Methane is stable hydrocarbon, due to dissociation chemisorption, the valence link power of methane molecule is changed, reduces reaction activity, produces catalytic reaction.In catalytic reaction process, heat is released in flameless burning, adds the resistance value of sensitive element platinum filament.An electric signal associated with gas density can be obtained according to the change of resistance value.
Ampere-type electrochemical sensor in sulfurated hydrogen detection submodule is made up of submergence three electrodes in the electrolytic solution; Working electrode adopts the washing with catalytic activity on the perforated membrane of ventilative hydrophobic; Measured gas, through the aforesaid perforated membrane of diffuse transmission, carries out electrochemical reaction thereon, and described electrochemical reaction comprises electrochemical oxidation or reduction reaction.In electrochemical reaction, the working signal participating in the working electrode of reaction amplifies through amplifier, and become the output signal of instrument, the size of output signal is just in time generation one contrary current signal equal to working electrode.
The sensitive element of carbon dioxide described in carbon dioxide detection module adopts the hybrid carbon dioxide sensitive element including thermistor, this element is filled with cation solid-electrolyte between two electrodes, its negative electrode is made up of lithium carbonate and gilding, and anode is gilding.The A/D converter of carbon dioxide detection module inside has carried out sampling to data and has done process.Voltage signal and the CO2 concentration value of carbon dioxide detection module output are linear.
When the utility model portable multi-function inspection shaft gas alarm uses, can alarm be fixed on arm by bandage, detect underground air quality at any time, can be left in time by light and voice two kinds of alerting signal prompting operating personnels once certain gas concentration exceeds standard.The utility model three kinds of detection modules are separate, do not interfere with each other, and three kinds of detection module detection signals, all by data processing module process, control light warning module and voice alarm module warning by data processing module.Three kinds of detection modules all adopt Electrochemical Detection principle, and easy to use, the life-span is long, with low cost, are applicable to a vast line and promote the use of.
Accompanying drawing explanation
Below with reference to accompanying drawing, the utility model is described further:
Fig. 1 is the structural representation of the utility model portable multi-function inspection shaft gas alarm;
Fig. 2 is the module principle figure of the utility model portable multi-function inspection shaft gas alarm.
In figure: 1, housing, 2, LED, 3, lampshade, 4, gas collection lid, 5, bandage.
Embodiment
With reference to accompanying drawing 1 ~ 2, the utility model portable multi-function inspection shaft gas alarm comprises housing 1, power supply and circuit board, and power supply and circuit board are arranged in housing 1, circuit board are equipped with gas detection module, data processing module and alarm module; LED 2 and lampshade 3 are equipped with in housing 1 one end, and the other end of housing 1 is gas collection lid 4, gas collection lid 4 has aperture, is convenient to gas collection, detection; Described power supply is gas detection module, data processing module, alarm module and LED 2 provides electric energy; Data processing module is connected with gas detection module and alarm module respectively, and gas detection module is sent to data processing module detecting data, and data processing module is sent to alarm module process information; Alarm module is connected with LED 2, and alarm module adopts sound and light alarm module or voice alarm module;
Described gas detection module comprises CH_4 detection submodule, sulfurated hydrogen detection submodule and carbon dioxide detection sub-module;
Described CH_4 detection submodule adopts the carrier scribbling catalyzer as sensitive element, and described catalyzer adopts the metallic catalysts such as Pt, Pd; Obtained the electric signal associated with gas density in catalytic reaction process by the change of the resistance value of sensitive element, CH_4 detection submodule sends described electric signal to data processing module.
Described sulfurated hydrogen detection submodule adopts commercially available ampere-type electrochemical sensor; Measured gas, through sulfurated hydrogen detection submodule, produces output signal, is sent to data processing module.
Described carbon dioxide detection module has carbon dioxide sensitive element and A/D converter, and the voltage signal of output is sent to data processing module by carbon dioxide detection module, described voltage signal and CO2 concentration value linear.
Described power acquisition dry cell or lithium battery.
The back side of described housing 1 is provided with bandage 5 or buckle, is convenient to carry with.
Be threaded connection between described lampshade 3 and housing 1.
Described LED 2 is replaceable.
Described data processing module has CPU and data-carrier store, and data processing module is sent to alarm module process information.
In use, can alarm be fixed on arm by bandage 5, underground air enters gas detection module by gas collection lid 4, detection signal is transferred to data processing module by gas detection module, exceed data processing module secure setting once one or more gases, data processing module outputs signal to alarm module.Alarm module to give a warning light by controlling LED, and plays warning voice message operating personnel and leave in time.
It shows above-described embodiment is portable multi-function inspection shaft gas alarm, to harmful gas under inspection shaft for detection, be particularly suitable for being applicable to a line operating personnel and use, utilize this alarm can detect inspection shaft air whether safety at any time.What the present invention showed is that to utilize the present invention to produce similar to a kind of device realizing object of the present invention and feature, portable multi-function inspection shaft gas alarm of the present invention is that multiple gases detection module independently uses and overall portability, cost is lower, the concrete reversibility of Electrochemical Detection, long service life.The present invention embodies a kind of brand-new multiple gases compound detection and cheap, thinking easily, and above-mentioned enforcement is only a concrete manifestation of the present invention, and should not be considered as the description restriction receiving embodiment.Because those skilled in the art can by carrying out a lot of simple amendment and variation based on the present invention, therefore the present invention will not limit specific to structure, operation and description, and similar suitable amendment or equivalent are all in appended right.
Claims (9)
1. a portable multi-function inspection shaft gas alarm, is characterized in that: comprise housing, power supply and circuit board, and power supply and circuit board are arranged in housing, circuit board is equipped with gas detection module, data processing module and alarm module; Shell one end is equipped with LED and lampshade, and the other end of housing is gas collection lid, covers have aperture at gas collection; Described power supply is gas detection module, data processing module, alarm module and LED provide electric energy; Data processing module is connected with gas detection module and alarm module respectively, and gas detection module is sent to data processing module detecting data, and data processing module is sent to alarm module process information; Alarm module is connected with LED, and alarm module adopts sound and light alarm module or voice alarm module;
Described data processing module has CPU and data-carrier store;
Described gas detection module comprises CH_4 detection submodule, sulfurated hydrogen detection submodule and carbon dioxide detection sub-module.
2. portable multi-function inspection shaft gas alarm according to claim 1, is characterized in that: described CH_4 detection submodule adopts the carrier scribbling catalyzer as sensitive element, and described catalyzer adopts Pt, Pd metallic catalyst; Obtained the electric signal associated with gas density in catalytic reaction process by the change of the resistance value of sensitive element, CH_4 detection submodule sends described electric signal to data processing module.
3. portable multi-function inspection shaft gas alarm according to claim 1, is characterized in that: described sulfurated hydrogen detection submodule adopts commercially available ampere-type electrochemical sensor; Measured gas, through sulfurated hydrogen detection submodule, produces output signal, is sent to data processing module.
4. portable multi-function inspection shaft gas alarm according to claim 1, it is characterized in that: described carbon dioxide detection module has carbon dioxide sensitive element and A/D converter, the voltage signal of output is sent to data processing module by carbon dioxide detection module, described voltage signal and CO2 concentration value linear.
5. portable multi-function inspection shaft gas alarm according to claim 1, is characterized in that: described power acquisition dry cell or lithium battery.
6. portable multi-function inspection shaft gas alarm according to claim 1, is characterized in that: the back side of described housing is provided with bandage or buckle.
7. portable multi-function inspection shaft gas alarm according to claim 1, is characterized in that: be threaded connection between described lampshade and housing.
8. portable multi-function inspection shaft gas alarm according to claim 1, is characterized in that: described LED can be changed.
9. portable multi-function inspection shaft gas alarm according to claim 1, is characterized in that: described CH_4 detection submodule, sulfurated hydrogen detection submodule and carbon dioxide detection sub-module three kinds of detection module independent actions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520587195.4U CN204833616U (en) | 2015-08-07 | 2015-08-07 | Gaseous alarm of portable multi -functional inspection shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520587195.4U CN204833616U (en) | 2015-08-07 | 2015-08-07 | Gaseous alarm of portable multi -functional inspection shaft |
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| Publication Number | Publication Date |
|---|---|
| CN204833616U true CN204833616U (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520587195.4U Expired - Fee Related CN204833616U (en) | 2015-08-07 | 2015-08-07 | Gaseous alarm of portable multi -functional inspection shaft |
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| CN (1) | CN204833616U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108629949A (en) * | 2018-06-29 | 2018-10-09 | 上海美桥科材料科技有限公司 | Inflammable, explosive, poisonous monitoring harmful gases alarm system and emergency method |
-
2015
- 2015-08-07 CN CN201520587195.4U patent/CN204833616U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108629949A (en) * | 2018-06-29 | 2018-10-09 | 上海美桥科材料科技有限公司 | Inflammable, explosive, poisonous monitoring harmful gases alarm system and emergency method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 Termination date: 20200807 |
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| CF01 | Termination of patent right due to non-payment of annual fee |