CN203308517U - Coal mine gas leaking alarm device - Google Patents
Coal mine gas leaking alarm device Download PDFInfo
- Publication number
- CN203308517U CN203308517U CN2013203214319U CN201320321431U CN203308517U CN 203308517 U CN203308517 U CN 203308517U CN 2013203214319 U CN2013203214319 U CN 2013203214319U CN 201320321431 U CN201320321431 U CN 201320321431U CN 203308517 U CN203308517 U CN 203308517U
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- control chip
- coal mine
- mine gas
- gating circuit
- gas leakage
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- Helmets And Other Head Coverings (AREA)
Abstract
The utility model discloses a coal mine gas leaking alarm device, comprising a control chip, a buzzer and an alarm lamp; the output end of the control chip is connected with the buzzer and the alarm lamp; the coal mine gas leaking alarm device is characterized by also comprising a plurality of gas sensors, signal amplifiers corresponding to the gas sensors in number, a gating circuit controlled by the control chip and an AD (analog digital) converter; the signal amplifiers correspond to the gas sensors one by one and are connected with the gas sensors; the output ends of the signal amplifiers are connected with the gating circuit; the gating circuit is also connected with the control chip by the AD converter. The coal mine gas leaking alarm device is provided with the multiple gas sensors, even one of the gas sensors has a fault, the other gas sensors can normally work, so normal alarm is ensured; in addition, the multiple gas sensors are connected with the control chip by the AD converter and the gating circuit, so the structure is simpler, the cost is lower and the safety is better.
Description
Technical field
The utility model relates to a kind of warning device, especially a kind of coal mine gas leakage alarming device.
Background technology
Coal is non-renewable resource, is again the important energy, is also important source material metallurgical, chemical industry.Coal is that archaeophyte is imbedded in the underground solid combustible mineral products that complicated biochemistry and physicochemical change form gradually that experienced, a kind of solid combustible organic rock, mainly by plant remains through biological chemistry action, after burying, through geologic process, change and form again.
The exploitation of coal is a job the arduousest, and due to the buried depth difference of coal resources, also there is dividing of pit mining (burying darker) and strip mining transformation (burying more shallow) on mining type general homology ground.China can only account for 7.5% by opencast reserves, therefore China mines and take pit mining as main, number as large as Shanxi, Shandong, Xuzhou and the Northeast adopts this mining type, gassy how much being inversely proportional in the quality of pit mining condition and colliery, in China's coal mines, contain the gas ratio high, high gas and have the mine of Gas Outburst to account for more than 40%.Gas is revealed, blast will cause great security incident, so the coal mine gas leakage alarming device is the requisite parts of pit mining.
Existing coal mine gas leakage alarming device, as disclosed as Chinese patent ZL032162847, mainly by control chip, buzzer, alarm lamp, firedamp sensor and signal amplifier, formed, wherein the quantity of firedamp sensor only has one, in case this firedamp sensor generation detection failure will affect warning, cause security incident; Therefore safety is not high, owing to there being such problem, so be necessary, existing coal mine gas leakage alarming device is improved.
The utility model content
The purpose of this utility model is the better coal mine gas leakage alarming device of a kind of safety designed for the deficiency that solves above-mentioned technology.
The coal mine gas leakage alarming device that the utility model is designed, comprise control chip, buzzer and alarm lamp, the output of described control chip is connected with alarm lamp with described buzzer, it is characterized in that also comprising several firedamp sensors, the signal amplifier corresponding with firedamp sensor quantity, gating circuit and an AD converter of being controlled by described control chip, described firedamp sensor and signal amplifier corresponding and connection one by one, the output of all signal amplifiers is connected with gating circuit, described gating circuit also connects control chip by described AD converter.
As preferably:
The output of described control chip also is electrically connected to a radio-frequency module;
The quantity of described firedamp sensor is three or four;
Preferred scheme also comprises a safety helmet consisted of shell, support and mine lamp, and described support is positioned at shell, and described mine lamp is located at the shell front end; Between described support and shell, be provided with packed layer, in described packed layer, be provided with an electrical box, described control chip, buzzer, signal amplifier, gating circuit and AD converter all are positioned at described electrical box, and described alarm lamp and firedamp sensor are embedded on described shell;
Described packed layer is froth bed;
The coal mine gas leakage alarming device that the utility model is designed, its beneficial effect is: firedamp sensor is a plurality of, even one of them breaks down, remaining firedamp sensor also can work, thereby guarantee Normal Alarm, in addition, a plurality of firedamp sensors are connected with control chip with AD converter by gating circuit, structure is more simple, and cost is lower.The designed coal mine gas leakage alarming device of the utility model is than prior art, and safety is better.
The accompanying drawing explanation
Fig. 1 is the structural representation of embodiment 1 coal mine gas leakage alarming device;
Fig. 2 is the structural representation of embodiment 2 coal mine gas leakage alarming devices;
Fig. 3 is the structural representation of embodiment 3 coal mine gas leakage alarming devices;
In figure: control chip 1, buzzer 2, alarm lamp 3, firedamp sensor 4, signal amplifier 5, gating circuit 6, AD converter 7, radio-frequency module 8, safety helmet 9, shell 10, support 11, mine lamp 12, packed layer 13, electrical box 14.
The specific embodiment
The utility model will be further described by reference to the accompanying drawings below by embodiment.
Embodiment 1:
As shown in Figure 1, the described coal mine gas leakage alarming device of the present embodiment, comprise control chip 1, buzzer 2 and alarm lamp 3, the output of described control chip 1 is connected with alarm lamp 3 with described buzzer 2, it is characterized in that also comprising four firedamp sensors 4, four signal amplifiers 5, gating circuit 6 and an AD converter 7 of being controlled by described control chip 1, described firedamp sensor 4 and signal amplifier 5 corresponding and connection one by one, the output of all signal amplifiers 5 is connected with gating circuit 6, described gating circuit 6 also connects control chip 1 by described AD converter 7.
The described coal mine gas leakage alarming device of the present embodiment, its beneficial effect is: firedamp sensor 4 is for a plurality of, even one of them breaks down, remaining three firedamp sensor 4 also can work, thereby guarantee Normal Alarm, in addition, a plurality of firedamp sensors 4 are connected with control chip 1 with AD converter 7 by gating circuit 6, structure is more simple, and cost is lower.This coal mine gas leakage alarming device is than prior art, and safety is better.
Embodiment 2:
As shown in Figure 2, the described coal mine gas leakage alarming device of the present embodiment, as different from Example 1: the output of described control chip 1 also is electrically connected to a radio-frequency module 8.
The described coal mine gas leakage alarming device of the present embodiment, its another benefit had are the danger signal detected can be launched by radio-frequency module 8, remind more people to note.
Embodiment 3:
As shown in Figure 3, the described coal mine gas leakage alarming device of the present embodiment, as different from Example 1: also comprise a safety helmet 9 consisted of shell 10, support 11 and mine lamp 12, described support 11 is positioned at shell 10, and described mine lamp 12 is located at shell 10 front ends; Between described support 11 and shell 10, be provided with packed layer 13, in described packed layer 13, be provided with an electrical box 14, described control chip 1, buzzer 2, signal amplifier 5, gating circuit 6 and AD converter 7 all are positioned at described electrical box 14, and described alarm lamp 3 and firedamp sensor 4 are embedded on described shell 10; Wherein: described packed layer 13 is froth bed.
The described coal mine gas leakage alarming device of the present embodiment can be worked as the cap band, can move deep scene with personnel, so safety is better.
Specific embodiment described herein is only to design of the present utility model explanation for example.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (5)
1. coal mine gas leakage alarming device, comprise control chip (1), buzzer (2) and alarm lamp (3), the output of described control chip (1) is connected with alarm lamp (3) with described buzzer (2), it is characterized in that also comprising several firedamp sensors (4), the signal amplifier (5) corresponding with firedamp sensor (4) quantity, gating circuit (6) and an AD converter (7) of being controlled by described control chip (1), described firedamp sensor (4) and signal amplifier (5) corresponding and connection one by one, the output of all signal amplifiers (5) is connected with gating circuit (6), described gating circuit (6) also connects control chip (1) by described AD converter (7).
2. coal mine gas leakage alarming device according to claim 1, is characterized in that the output of described control chip (1) also is electrically connected to a radio-frequency module (8).
3. coal mine gas leakage alarming device according to claim 1, the quantity that it is characterized in that described firedamp sensor (4) is three or four.
4. coal mine gas leakage alarming device according to claim 1, it is characterized in that also comprising a safety helmet (9) formed by shell (10), support (11) and mine lamp (12), described support (11) is positioned at shell (10), and described mine lamp (12) is located at shell (10) front end; Between described support (11) and shell (10), be provided with packed layer (13), in described packed layer (13), be provided with an electrical box (14), described control chip (1), buzzer (2), signal amplifier (5), gating circuit (6) and AD converter (7) all are positioned at described electrical box (14), and described alarm lamp (3) and firedamp sensor (4) are embedded on described shell (10).
5. coal mine gas leakage alarming device according to claim 4, is characterized in that described packed layer (13) is froth bed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203214319U CN203308517U (en) | 2013-06-05 | 2013-06-05 | Coal mine gas leaking alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203214319U CN203308517U (en) | 2013-06-05 | 2013-06-05 | Coal mine gas leaking alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203308517U true CN203308517U (en) | 2013-11-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203214319U Expired - Fee Related CN203308517U (en) | 2013-06-05 | 2013-06-05 | Coal mine gas leaking alarm device |
Country Status (1)
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| CN (1) | CN203308517U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108508148A (en) * | 2018-03-14 | 2018-09-07 | 合肥飞吉信息技术有限公司 | A kind of intelligent gas detecting device with LED alarm lamp |
-
2013
- 2013-06-05 CN CN2013203214319U patent/CN203308517U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108508148A (en) * | 2018-03-14 | 2018-09-07 | 合肥飞吉信息技术有限公司 | A kind of intelligent gas detecting device with LED alarm lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131127 Termination date: 20140605 |