CN204129921U - gas leak detection system - Google Patents
gas leak detection system Download PDFInfo
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- CN204129921U CN204129921U CN201420692599.5U CN201420692599U CN204129921U CN 204129921 U CN204129921 U CN 204129921U CN 201420692599 U CN201420692599 U CN 201420692599U CN 204129921 U CN204129921 U CN 204129921U
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- Prior art keywords
- gas
- gas sensor
- piping
- detection system
- leak detection
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Abstract
The utility model discloses a kind of gas leak detection system.Gas leak detection system comprise be arranged in gas piping and be in off-state solenoid valve, be arranged on gas piping exit and the first gas sensor be electrically connected with solenoid valve, the second gas sensor exported away from gas piping, the audible-visual annunciator that is electrically connected with the second gas sensor, first gas sensor is used for the Controlling solenoid valve when detecting that gas concentration detected value exceeds warning value and turns off gas piping, and the second gas sensor is used for controlling audible-visual annunciator when detecting that gas concentration detected value exceeds warning value and reports to the police.The utility model can automatically shut down gas piping when gas leak, and when gas piping turns off unsuccessful, and alarm.
Description
Technical field
The utility model relates to Smart Home technical field, particularly relates to a kind of gas leak detection system.
Background technology
At present, the combustion gas in city, mainly based on piped gas, although bring conveniently for daily life, due to the combustibility of coal gas and containing toxic gas carbon monoxide, also exists certain potential safety hazard.People forget the valve of closing gas piping outlet sometimes after using coal gas, and this may cause fire or gas poisoning, even coal gas blast accident.Therefore, how realizing automatically dying of coal gas when people forget closing valve, is a problem needing solution badly.
In order to use coal gas more relievedly, in intelligent domestic system, being integrated with coal gas detecting and gas automatic shutoff function, namely detecting gas concentration by sensor, once gas concentration exceeds standard, just control coal gas inductive switch and automatically close coal gas.But gas sensor and coal gas inductive switch exist situation about losing efficacy, now, still there will be the situation that coal gas continues to leak.
Utility model content
The technical matters that the utility model mainly solves is to provide a kind of gas leak detection system, can automatically shut down gas piping when gas leak, and when gas piping turns off unsuccessful, and alarm.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: provide a kind of gas leak detection system, described gas leak detection system comprises and is arranged in gas piping and is in the solenoid valve of off-state, be arranged on gas piping exit and the first gas sensor be electrically connected with described solenoid valve, away from the second gas sensor of gas piping outlet, the audible-visual annunciator be electrically connected with described second gas sensor, described first gas sensor be used for detect gas concentration detected value control when exceeding warning value described solenoid valve turn off gas piping, described second gas sensor is used for detecting that gas concentration detected value controls described audible-visual annunciator and reports to the police when exceeding described warning value.
Preferably, described first gas sensor is electrically connected with described second gas sensor, and described second gas sensor detects at described first gas sensor and to start after gas concentration detected value exceeds warning value to detect.
Preferably, described first gas sensor distance gas piping exports within 0.5 meter.
Preferably, described second gas sensor distance gas piping exports 10 meters to 15 meters.
The beneficial effects of the utility model are: the situation being different from prior art, the utility model detects gas leak situation by two gas sensors, a gas sensor is close to gas piping outlet, gas piping is turned off for Controlling solenoid valve, a gas sensor is away from gas piping outlet, report to the police for controlling audible-visual annunciator when gas piping turns off unsuccessful, thus gas piping can be automatically shut down when gas leak, and when gas piping turns off unsuccessful, and alarm.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the gas leak detection system of the utility model embodiment.
Embodiment
Arbitrary feature disclosed in this instructions, unless specifically stated otherwise, all can be replaced by other equivalences or the alternative features with similar object.That is, unless specifically stated otherwise, each feature is an example in a series of equivalence or similar characteristics.
Referring to Fig. 1, is the schematic diagram of the gas leak detection system of the utility model embodiment.The gas leak detection system of the utility model embodiment comprises and is arranged in gas piping 1 and is in the solenoid valve 2 of off-state, be arranged on gas piping 1 exit and the first gas sensor 3 be electrically connected with solenoid valve 2, away from the second gas sensor 4 that gas piping 1 exports, the audible-visual annunciator 5 be electrically connected with the second gas sensor 4, first gas sensor 3 turns off gas piping 1 for the Controlling solenoid valve 2 when detecting that gas concentration detected value exceeds warning value, second gas sensor 4 is reported to the police for controlling audible-visual annunciator 5 when detecting that gas concentration detected value exceeds warning value.Solenoid valve 2 is embedded in gas piping 1, is usually in off-state, ensures that the air-flow of gas piping 1 is unobstructed.When the first gas sensor 3 detects that gas concentration detected value exceeds warning value, first gas sensor 3 sends cut-off signals to solenoid valve 2, solenoid valve 2 connects circuit after receiving cut-off signals, solenoid valve 2 adhesive, thus turn off gas piping 1, make coal gas stop exporting, ensure coal gas safety in utilization.
When solenoid valve 2 because fault cannot adhesive time, coal gas can continue to leak, and spreads in house, when coal gas diffusion certain limit, second gas sensor 4 will detect that gas concentration detected value exceeds warning value, thus control audible-visual annunciator 5 carries out sound and light alarm.
Alternatively, the first gas sensor 3 is electrically connected with the second gas sensor 4, and the second gas sensor 4 detects at the first gas sensor 3 and to start after gas concentration detected value exceeds warning value to detect.Second gas sensor 4 can be in low power consumpting state at ordinary times, first gas sensor 3 detects that send activation signal after gas concentration detected value exceeds warning value starts to detect after the second gas sensor 4, second gas sensor 4 receives activation signal.In the present embodiment, the first gas sensor 3 exports within 0.5 meter apart from gas piping 1, and the second gas sensor 4 exports 10 meters to 20 meters apart from gas piping 1.
The gas leak detection system of the utility model embodiment can not only automatically shut down gas piping when gas leak by solenoid valve, and when gas piping turn off unsuccessful time, again can and alarm, improve coal gas detect robotization performance.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model instructions and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (4)
1. a gas leak detection system, it is characterized in that, described gas leak detection system comprises and is arranged in gas piping and is in the solenoid valve of off-state, be arranged on gas piping exit and the first gas sensor be electrically connected with described solenoid valve, away from the second gas sensor of gas piping outlet, the audible-visual annunciator be electrically connected with described second gas sensor, described first gas sensor be used for detect gas concentration detected value control when exceeding warning value described solenoid valve turn off gas piping, described second gas sensor is used for detecting that gas concentration detected value controls described audible-visual annunciator and reports to the police when exceeding described warning value.
2. gas leak detection system according to claim 1, it is characterized in that, described first gas sensor is electrically connected with described second gas sensor, and described second gas sensor detects at described first gas sensor and to start after gas concentration detected value exceeds warning value to detect.
3. gas leak detection system according to claim 1, is characterized in that, described first gas sensor distance gas piping exports within 0.5 meter.
4. gas leak detection system according to claim 1, is characterized in that, described second gas sensor distance gas piping exports 10 meters to 15 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420692599.5U CN204129921U (en) | 2014-11-18 | 2014-11-18 | gas leak detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420692599.5U CN204129921U (en) | 2014-11-18 | 2014-11-18 | gas leak detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204129921U true CN204129921U (en) | 2015-01-28 |
Family
ID=52386255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420692599.5U Expired - Fee Related CN204129921U (en) | 2014-11-18 | 2014-11-18 | gas leak detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204129921U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104361721A (en) * | 2014-11-18 | 2015-02-18 | 成都博盛信息技术有限公司 | Gas leakage detection system |
-
2014
- 2014-11-18 CN CN201420692599.5U patent/CN204129921U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104361721A (en) * | 2014-11-18 | 2015-02-18 | 成都博盛信息技术有限公司 | Gas leakage detection system |
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Legal Events
| 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: 20150128 Termination date: 20201118 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |