CN103886721A - Domestic coalbed methane leakage alarming device - Google Patents
Domestic coalbed methane leakage alarming device Download PDFInfo
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- CN103886721A CN103886721A CN201410121711.4A CN201410121711A CN103886721A CN 103886721 A CN103886721 A CN 103886721A CN 201410121711 A CN201410121711 A CN 201410121711A CN 103886721 A CN103886721 A CN 103886721A
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Abstract
The invention discloses a domestic coalbed methane leakage alarming device and belongs to the field of flammable gas safety detection. According to the device, an air-sensitive semiconductor sensor QM-N10 is used for monitoring the concentration of coalbed methane liquefied gas in air and outputting a current signal changing along with the concentration of the coalbed methane liquefied gas in the air, the signal is amplified and then is used for controlling a starting circuit of a music integrated package KD9561, and the KD9561 pushes a trumpet to sound. When a coalbed methane liquefied device does not leak, the air-sensitive semiconductor sensor QM-N10 outputs a weak current signal, and the signal cannot control the music integration block KD9561 to start, so that the trumpet cannot sound. Once the coalbed methane liquefied device leaks, the air-sensitive semiconductor sensor QM-N10 outputs a strong current signal, the signal controls the music integrated package KD9561 to start, and the trumpet is pushed to sound.
Description
Technical field
The invention belongs to inflammable gas safety detection field, specifically, is a kind of family expenses coal gas gasification gas leakage autoalarm.
Background technology
Along with improving constantly of people's living standard, no matter city or rural area, coal gas gasification gas has all generally been used in kitchen, and this life that is us has brought a lot of facilities, and kitchen cleaning health is saved again the energy.But owing to there being the factor of aspects such as being interrupted air feed, use improper storage and pipeline, gas utensil leakage, also bring certain potential safety hazard.Current coal-seam gas leakage alarm circuit complexity, be unfavorable for operation, and cost is higher; What have is integrated with kitchen range, expensive, and user's replacement cost is too high, is not easy to promote.
Summary of the invention
The invention solves the deficiencies in the prior art, the family expenses coal seam that a kind of circuit is simple, cost of manufacture is low gas leakage warning device is provided.
In order to achieve the above object, the present invention adopts following technical scheme:
A kind of family expenses coal-seam gas leakage alarming device, comprise power circuit, testing circuit, sound control circuit, described power circuit is made up of transformer B, bridge rectifier D, capacitor C 1, C2, three-terminal regulator block W, be input to the primary coil of power transformer B by insurance RD from the 220V AC power of P1 interface input, at the secondary coil output low-voltage AC of B, through bridge rectifier filtering D, in capacitor C 1, obtain low-voltage dc power supply, through three-terminal regulator block W voltage stabilizing, in capacitor C 2, obtain low-voltage dc power supply stably again, described testing circuit is made up of gas sensory sensor IC 1, resistance R 1, R2, R3, diode D5, capacitor C 3, after connecting with resistance R 1, filament the two poles of the earth h1, the h2 of described gas sensory sensor IC 1 be connected to both ends of power, the a end of gas sensory sensor IC 1 is connected to one end of power supply, k Duan Yi road and resistance R 3, diode D5 are connected in series in the other end of power supply, and another road and resistance R 2, capacitor C 3 are connected in series in the other end of power supply, described sound control circuit is by triode Q1, Q3, resistance R 4, R5, music integrated block IC 2, controllable silicon Q2, loudspeaker RL composition, described triode Q1 base stage is connected between capacitor C 3 and resistance R 2, collector is connected with resistance R 4 one end, emitter is connected with controllable silicon Q2 one end, resistance R 4 other end one tunnels are connected with 8 pin of music integrated block IC 2, another road is connected with positive source, described controllable silicon Q2 is connected between power cathode and 4 pin of music integrated block IC 2, described resistance R 5 is connected between 1 pin and 2 pin of music integrated block IC 2, 6 pin of described music integrated block IC 2 are connected with the base stage of triode Q3, described loudspeaker RL is connected between positive source and the collector of triode Q3, the emitter of described triode Q3 is connected with power cathode.
Preferably, described resistance R 3 is adjustable resistances; Described gas sensory sensor IC 1 adopts QM-N10; Described music integrated block IC 2 adopts KD9561.
The present invention adopts the concentration of coal gas gasification gas in gas sensory sensor QM-N10 monitoring air, then export a current signal with coal gas gasification gas concentration change in air, this signal is controlled the start-up circuit of music-integrating block KD9561 again after amplifying, and KD9561 promotes sound horn.Electronic component of the present invention is few, and circuit is simple, easy to operate, and cost is low.
Brief description of the drawings
Fig. 1 circuit diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
As shown in Figure 1, a kind of family expenses coal-seam gas leakage alarming device, comprise power circuit, testing circuit, sound control circuit, described power circuit is made up of transformer B, bridge rectifier D, capacitor C 1, C2, three-terminal regulator block W, be input to the primary coil of power transformer B by insurance RD from the 220V AC power of P1 interface input, at the secondary coil output low-voltage AC of B, through bridge rectifier filtering D, in capacitor C 1, obtain low-voltage dc power supply, through three-terminal regulator block W voltage stabilizing, in capacitor C 2, obtain low-voltage dc power supply stably again, described testing circuit is made up of gas sensory sensor IC 1, resistance R 1, R2, R3, diode D5, capacitor C 3, after connecting with resistance R 1, filament the two poles of the earth h1, the h2 of described gas sensory sensor IC 1 be connected to both ends of power, the a end of gas sensory sensor IC 1 is connected to one end of power supply, k Duan Yi road and resistance R 3, diode D5 are connected in series in the other end of power supply, and another road and resistance R 2, capacitor C 3 are connected in series in the other end of power supply, described sound control circuit is by triode Q1, Q3, resistance R 4, R5, music integrated block IC 2, controllable silicon Q2, loudspeaker RL composition, described triode Q1 base stage is connected between capacitor C 3 and resistance R 2, collector is connected with resistance R 4 one end, emitter is connected with controllable silicon Q2 one end, resistance R 4 other end one tunnels are connected with 8 pin of music integrated block IC 2, another road is connected with positive source, described controllable silicon Q2 is connected between power cathode and 4 pin of music integrated block IC 2, described resistance R 5 is connected between 1 pin and 2 pin of music integrated block IC 2, 6 pin of described music integrated block IC 2 are connected with the base stage of triode Q3, described loudspeaker RL is connected between positive source and the collector of triode Q3, the emitter of described triode Q3 is connected with power cathode.
Preferably, described resistance R 3 is adjustable resistances; Described gas sensory sensor IC 1 adopts QM-N10; Described music integrated block IC 2 adopts KD9561.
As shown in Figure 1, principle of work of the present invention is as follows:
In power circuit, be input to the primary coil of power transformer B by insurance RD from the 220V AC power of P1 interface input, at the secondary coil output low-voltage AC of B, via bridge rectifier D, in capacitor C 1, obtain low-voltage dc power supply, through three-terminal regulator block W voltage stabilizing, in capacitor C 2, obtain low-voltage dc power supply stably again, use for other testing circuit and sound control circuit.
In testing circuit, resistance R 1, R3 diode D5 are the quiescent point regulating element of gas sensory sensor IC 1, and the resistance value of adjustable resistance R3 can change the sensitivity of this warning device, namely right alarming value of gas concentration in air.K end by IC1 is exported with the current signal that in air, so gas concentration changes, and forms a magnitude of voltage after resistance R 2 current limlitings in capacitor C 3.
In sound control circuit, resistance R 4 is the collector resistance of triode Q1, and 1 pin 2 pin connecting resistance R5 of music integrated block IC 2, are the internal oscillator outer meeting resistance of IC2, and 4 pin are power cathode, and 8 pin are positive source, and 6 pin are audio output.
The voltage signal obtaining from capacitor C 3 is input to the base stage of triode Q1, after Q1 amplifies, exports the trigger electrode of controllable silicon Q2 to by emitter, controls whether conducting of Q2.
When use, the present invention is placed on to the place of the Approaching Coal Seam gas liquefaction gas in kitchen, if when in kitchen, coal gas gasification gas equipment has leakage phenomenon, will export a larger current signal from the k end of gas sensory sensor IC 1, in capacitor C 3, just obtain a higher voltage through resistance R 2, this voltage will be controlled controllable silicon Q2 conducting after triode Q1 amplifies, after Q2 conducting, music integrated block IC 2 has just obtained negative power supply, from 6 pin output audio signals, amplify promotion loudhailer RL through triode Q3 and send the sound, indoor occupant is processed after hearing the sound immediately, avoid accident generation, if generally in the time that coal gas gasification gas equipment does not have leakage phenomenon, from weak current signal of k end output of gas sensory sensor IC 1, in capacitor C 3, obtain a lower voltage through resistance R 2, this voltage can not be controlled controllable silicon Q2 conducting after triode Q1 amplifies, Q2 is still in cut-off state, music integrated block IC 2 can not get negative power supply, and 6 pin just do not have sound signal output, and loudhailer RL just can not send the sound.
In circuit of the present invention, controllable silicon Q2 is after triggering and conducting, even if trigger end does not have input signal, Q2 also can not end, loudspeaker RL sends the sound always, only has people for cutting off the electricity supply, while waiting circuit reset again to power, the present invention could normally work, to prevent the phenomenon of failing to report under special circumstances.
Claims (4)
1. a family expenses coal-seam gas leakage alarming device, comprises power circuit, testing circuit, sound control circuit, described power circuit is by transformer B, bridge rectifier D, capacitor C 1, C2, three-terminal regulator block W composition, be input to the primary coil of power transformer B by insurance RD from the 220V AC power of P1 interface input, at the secondary coil output low-voltage AC of B, through bridge rectifier filtering D, in capacitor C 1, obtain low-voltage dc power supply, through three-terminal regulator block W voltage stabilizing, in capacitor C 2, obtain low-voltage dc power supply stably again, it is characterized in that: described testing circuit is by gas sensory sensor IC 1, resistance R 1, R2, R3, diode D5, capacitor C 3 forms, filament the two poles of the earth h1 of described gas sensory sensor IC 1, h2 is connected to both ends of power after connecting with resistance R 1, and a end of gas sensory sensor IC 1 is connected to one end of power supply, k Duan Yi road and resistance R 3, diode D5 is connected in series in the other end of power supply, another road and resistance R 2, capacitor C 3 is connected in series in the other end of power supply, described sound control circuit is by triode Q1, Q3, resistance R 4, R5, music integrated block IC 2, controllable silicon Q2, loudspeaker RL composition, described triode Q1 base stage is connected between capacitor C 3 and resistance R 2, collector is connected with resistance R 4 one end, emitter is connected with controllable silicon Q2 one end, resistance R 4 other end one tunnels are connected with 8 pin of music integrated block IC 2, another road is connected with positive source, described controllable silicon Q2 is connected between power cathode and 4 pin of music integrated block IC 2, described resistance R 5 is connected between 1 pin and 2 pin of music integrated block IC 2, 6 pin of described music integrated block IC 2 are connected with the base stage of triode Q3, described loudspeaker RL is connected between positive source and the collector of triode Q3, the emitter of described triode Q3 is connected with power cathode.
2. family expenses coal-seam gas leakage alarming device according to claim 1, is characterized in that: described resistance R 3 is adjustable resistances.
3. family expenses coal-seam gas leakage alarming device according to claim 1, is characterized in that: described gas sensory sensor IC 1 adopts QM-N10.
4. family expenses coal-seam gas leakage alarming device according to claim 1, is characterized in that: described music integrated block IC 2 adopts KD9561.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410121711.4A CN103886721A (en) | 2014-03-28 | 2014-03-28 | Domestic coalbed methane leakage alarming device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410121711.4A CN103886721A (en) | 2014-03-28 | 2014-03-28 | Domestic coalbed methane leakage alarming device |
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| CN103886721A true CN103886721A (en) | 2014-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410121711.4A Pending CN103886721A (en) | 2014-03-28 | 2014-03-28 | Domestic coalbed methane leakage alarming device |
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| CN (1) | CN103886721A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105389954A (en) * | 2015-11-10 | 2016-03-09 | 潘秀兰 | Combustible gas leakage alarm |
| CN109686054A (en) * | 2019-01-17 | 2019-04-26 | 徐州工业职业技术学院 | A kind of self-control Housthold earthquake siren |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2042223U (en) * | 1988-07-16 | 1989-08-02 | 武汉市延安医疗器械厂 | Gas alarm |
| CN2044087U (en) * | 1988-12-28 | 1989-09-06 | 周少力 | Gas alarm controller |
| CN2597986Y (en) * | 2002-09-21 | 2004-01-07 | 孙明旗 | Domestic speech alarm and automatic closing device for gas leak |
| CN101599208A (en) * | 2009-07-16 | 2009-12-09 | 北京联合大学 | Combustible gas leakage alarm |
| CN202331724U (en) * | 2011-11-11 | 2012-07-11 | 陈清尧 | Detector for hazardous gas |
| CN202512706U (en) * | 2012-03-02 | 2012-10-31 | 成都掌握移动信息技术有限公司 | Gas leak alarm |
| CN202995976U (en) * | 2012-11-15 | 2013-06-12 | 成都万维图新信息技术有限公司 | Harmful gas leakage alarm |
| CN203759837U (en) * | 2014-03-28 | 2014-08-06 | 卫斌鹏 | Kitchen liquefied gas detection alarm |
-
2014
- 2014-03-28 CN CN201410121711.4A patent/CN103886721A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2042223U (en) * | 1988-07-16 | 1989-08-02 | 武汉市延安医疗器械厂 | Gas alarm |
| CN2044087U (en) * | 1988-12-28 | 1989-09-06 | 周少力 | Gas alarm controller |
| CN2597986Y (en) * | 2002-09-21 | 2004-01-07 | 孙明旗 | Domestic speech alarm and automatic closing device for gas leak |
| CN101599208A (en) * | 2009-07-16 | 2009-12-09 | 北京联合大学 | Combustible gas leakage alarm |
| CN202331724U (en) * | 2011-11-11 | 2012-07-11 | 陈清尧 | Detector for hazardous gas |
| CN202512706U (en) * | 2012-03-02 | 2012-10-31 | 成都掌握移动信息技术有限公司 | Gas leak alarm |
| CN202995976U (en) * | 2012-11-15 | 2013-06-12 | 成都万维图新信息技术有限公司 | Harmful gas leakage alarm |
| CN203759837U (en) * | 2014-03-28 | 2014-08-06 | 卫斌鹏 | Kitchen liquefied gas detection alarm |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105389954A (en) * | 2015-11-10 | 2016-03-09 | 潘秀兰 | Combustible gas leakage alarm |
| CN109686054A (en) * | 2019-01-17 | 2019-04-26 | 徐州工业职业技术学院 | A kind of self-control Housthold earthquake siren |
| CN109686054B (en) * | 2019-01-17 | 2021-05-07 | 徐州工业职业技术学院 | Home-made household earthquake alarm device |
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Application publication date: 20140625 |