CN2386496Y - Domestic gas safety monitor unit - Google Patents
Domestic gas safety monitor unit Download PDFInfo
- Publication number
- CN2386496Y CN2386496Y CN 99219476 CN99219476U CN2386496Y CN 2386496 Y CN2386496 Y CN 2386496Y CN 99219476 CN99219476 CN 99219476 CN 99219476 U CN99219476 U CN 99219476U CN 2386496 Y CN2386496 Y CN 2386496Y
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- Prior art keywords
- comparer
- output
- danger
- emitting diode
- light emitting
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Abstract
The utility model relates to a monitoring device, which monitors CO contents in air and combustible gas leakage. A housing body is provided with a CO sensor and a combustible gas sensor, and the output end of the CO sensor is connected with an overrun comparator and a danger comparator. The output of the overrun comparator and the danger comparator all starts alarm sound and light, and the overrun output also starts an overrun luminotron and an exhaust fan. Except that the danger output sustains the operations, the danger output also starts a danger luminotron and a pipeline closing electromagnetic valve. The output end of the combustible gas sensor is connected with a leakage comparator. Except that the output of the leakage comparator sustains the alarm sound and closing the electromagnetic valve, the output of the leakage comparator also starts a leakage luminotron and cuts off a power supply of the exhaust fan. The utility model has the advantages that the utility model automatically alarms, prompts by letters, exhausts air, cuts off gas sources, etc. according to the concentration and the danger extent of indoor harmful gas, the functions are complete, and the reliability is high.
Description
The utility model belongs to control device, especially relates to a kind of domestic gas security monitor of CO content and combustible gas leakage in the air being implemented monitoring.
In the actual life,, people's lives and properties have been caused irremediable loss because the CO that Gas appliance quality problems and user installation use problem cause poisons and the gas leakage accident happens occasionally in the family.Therefore, the concentration of above-mentioned harmful gas in the air in the family living space and hazard level are monitored seemed particularly important.Monitored in the sound and light alarm mode that the auxiliary equipment of above-mentioned harmful gas was applied at relevant household electrical appliance in recent years, as kitchen hood.Also have with the special arrangement of same surveillance style and put on market, household safe usefulness gas is had certain good effect, but still exist following obviously not enough: show to monitor single harmful gas; Can not inform the user stage by stage according to the concentration and the hazard level of harmful gas, so the user is difficult to take corresponding effective measures to be got rid of, can not controls necessary air draft and gas combustion apparatus automatically and effectively get rid of harmful gas automatically.
The purpose of this utility model provides a kind ofly can monitor airborne CO and inflammable gas simultaneously, and can be according to its concentration and hazard level when reporting to the police stage by stage, take corresponding control approach air draft or close the domestic gas security monitor of Gas appliance by force automatically.
The technical scheme that realizes above-mentioned purpose is: housing is provided with CO and combustible gas sensor, the measurement output of CO sensor CG1 is connected to the comparer A1 of circuit board and the comparison input end of A2 simultaneously, the threshold voltage of comparer A1 is set and is represented that CO content is the value that transfinites in the air, the threshold voltage of comparer A2 is set and is represented that CO content is dangerous values in the air, the value output of transfiniting of comparer A1 starts simultaneously and replaces glittering " alarm " light emitting diode and interrupted audio communication Chinese percussion instrument, also start " transfiniting " light emitting diode simultaneously, the housing relative set indicates the light inlet window of " alarm " and " transfiniting " printed words, and the value output of transfiniting of comparer A1 also makes it conducting through the bidirectional triode thyristor power switch of photoelectrical coupler triggering exhaust fan simultaneously; The dangerous values output of comparer A2 is when keeping the Homeway.com Chinese percussion instrument work of aforesaid " alarm " light emitting diode, also start " danger " light emitting diode, the housing relative set indicates the light inlet window of " danger " printed words, and also the bidirectional triode thyristor power switch through photoelectrical coupler triggering gas pipeline normally open solenoid valve makes it to turn-off; The measurement output of combustible gas sensor CG2 connects the comparison input end of comparer A3, its threshold voltage is set the permissible value that contains inflammable gas in the expression air, the super permissible value output of comparer A3 is at the luminous two newspaper pipes of startup aforesaid " alarm ", news Chinese percussion instrument with when triggering bidirectional triode thyristor power switch shutoff gas pipeline solenoid valve, also start " leakage " light emitting diode, the housing relative set indicates the light inlet window of " leakage " printed words, also cuts off the bidirectional triode thyristor power switch of exhaust fan through photoelectrical coupler.
Be provided with rectifying voltage regulator in the housing 1 of this watch-dog;
Combustible gas sensor is natural gas sensor or coal gas sensor;
Comparer A1, A2, A3 are respectively each the single discharge circuits among the four high guaily unit integrated circuit LM324;
The bidirectional triode thyristor power switch of exhaust fan is parallel with hand switch 7.
Advantage of the present utility model is and can finishes controls such as sound and light alarm, text prompt ventilation ventilation and cut-out combustion gas stage by stage automatically according to the concentration and the hazard level of indoor harmful gas, complete function, reliability height, and complete machine adopts noncontacting switch, meets the explosion-proof electric apparatus technical requirement.
Below with drawings and Examples explanation the utility model.
Accompanying drawing 1 example structure synoptic diagram of the present utility model
Accompanying drawing 2 embodiment electrical schematic diagrams
Among the figure: 1. housing, 2. exhaust fan power supply plug-in unit, 3. power lead, 4. power of electromagnetic valve plug connector, 5. news Chinese percussion instrument sound window, 6. combustible gas sensor dust cover, 7. hand switch, 8.CO pickup dust-proofing cover.
Embodiment as shown in Figure 1, the panel of housing 1 is provided with news Chinese percussion instrument sound window 5, indicates the light inlet window of " power supply ", " alarm ", " transfiniting ", " danger " and " leakage " printed words, circuit board in the housing is provided with light emitting diode in its relevant position, wherein " transfinites ", " danger " and " leakage " light inlet window position is the superbright light emitting diode.Lower housing portion is arranged with CO pickup dust-proofing cover 8 and combustible gas sensor dust cover 6, be respectively equipped with the CO and the combustible gas sensor that support by base in the cover, wherein combustible gas sensor can be natural gas or coal gas sensor, and the user then selects according to employed source of the gas.Lower housing portion also is provided with the hand switch 7 of exhaust fan, and the housing both sides are respectively equipped with exhaust fan, power of electromagnetic valve plug connector 2,4.
Circuit structure of the present utility model is seen embodiment accompanying drawing 2, and the measurement output stage a ' of CO sensor CG1 connects comparer A simultaneously
1, A
2The comparison input end, comparer A wherein
1Threshold values adjust by resistance R 5 and potentiometer W2 and determine that its voltage represents that CO content is the value that transfinites in the air.The value output of transfiniting of comparer A1 is through isolating diode D
3, resistance R 6 is connected to switching transistor T
2Make it conducting, by transistor T
3, T
4The oscillator starting of oscillation of forming, each pipe collector connects double-colored " alarm " light emitting diode LED1 respectively, makes it alternately glittering, manages T simultaneously
3Collector also connects switch transistor T
5Make it to be on off state, the news Chinese percussion instrument HTD warning that intermittently pipes.Meanwhile, switch transistor T
1Base stage stabilivolt DW
1Conducting, photoelectrical coupler IC2 work, " transfiniting " LED 2 is bright, and the A of IC2, B hold conducting, bidirectional triode thyristor DK
1Conducting, exhaust fan power connector 2 gets electric, and exhaust fan starts air draft.
If CO content continues to increase CO sensor CG in the air
1Measure output voltage greater than by resistance R 15, potentiometer W
3The threshold values of setting, then comparer A
2Output dangerous values voltage is on the one hand by diode D
5Keep the alarm LED
1Replace that glittering Homeway.com Chinese percussion instrument HTD intermittently pipes, exhaust fan continues air draft, on the other hand by stabilivolt DW
2Make switch transistor T
6Conducting, " danger " LED
4Bright, the work of IC3 photoelectrical coupler, its C, D conducting, bidirectional triode thyristor power switch DK
2Conducting, power of electromagnetic valve connector CD
2Must be electric, gas pipeline normally open solenoid valve (accompanying drawing is not shown) ends, and makes the source of the gas that produces CO be closed.
Inflammable gas content is through its sensor CG in air
2When the measurement output valve is permissible value greater than the threshold voltage of being set by resistance R 23, potentiometer W4, comparer A
3The dangerous values of being exported is through resistance R 24, diode D
6, D
5Make switch transistor T
2Conducting, " alarm " light emitting diode is glittering, when news Chinese percussion instrument HTD intermittently pipes, also through stabilivolt DW
3Make switch transistor T
7Conducting, photoelectrical coupler IC4 work, " leakage " LED 5 is bright, and the conducting of E, F point makes that the power end of photoelectrical coupler IC2 is U-by clamper, and then A, B point is opened a way, and exhaust fan stops operating, and avoids its firing of brush to ignite airborne inflammable gas.
Be provided with rectifying voltage regulator WD in the housing of the present utility model and provide working power for watch-dog, housing one side is provided with the power lead 3 of introducing AC power, and after AC power was connected, " power supply " light emitting diode LED3 of output end of stabilized voltage supply was bright.
In the foregoing description, the filament voltage of CD sensor CG1 is provided by regulator block 7805 and by the ultralow-frequency oscillator control that IC1NE555 forms, satisfies the condition of work that its heter intermittent test powers up.Combustible gas sensor CG2 measures utmost point a by amplifier A
4The delay circuit of forming provides operating voltage, and delay time is 10 minutes, gives heat-staple condition of work to satisfy it.Comparer A among the embodiment
1,2,3And delay circuit A
4Adopt four-operational amplifier LM324 integrated circuit.
The bidirectional triode thyristor power switch DK1 of exhaust fan and be connected to hand switch K among the embodiment starts exhaust fan at any time to make things convenient for the user.
Claims (5)
1 domestic gas security monitor, by housing, gas sensor, comparator circuit and sound, optical alarm circuit are formed, and it is characterized in that: housing is provided with CO and combustible gas sensor, CO sensor CG
1Measurement output be connected to the comparer A of circuit board simultaneously
1And A
2The comparison input end, comparer A
1Threshold voltage set the airborne CO content of expression and be the value that transfinites, comparer A
2Threshold voltage set that CO content is dangerous values in the expression air, comparer A
1The value output of transfiniting start simultaneously and replace glittering " alarm " light emitting diode and interrupted audio communication Chinese percussion instrument, also start " transfiniting " light emitting diode simultaneously, the housing relative set indicates the light inlet window of " alarm " and " transfiniting " printed words, comparer A
1The value output of the transfiniting bidirectional triode thyristor power switch that also triggers exhaust fan simultaneously through photoelectrical coupler make it conducting, comparer A
2Dangerous values output when keeping the Homeway.com Chinese percussion instrument work of aforesaid " alarm " light emitting diode, also start " danger " light emitting diode, the housing relative set indicates the light inlet window of " danger " printed words, and also the bidirectional triode thyristor power switch through photoelectrical coupler triggering gas pipeline normally open solenoid valve makes it to turn-off; Combustible gas sensor CG
2Measurement output meet comparer A
3The comparison input end, its threshold voltage is set the permissible value that contains inflammable gas in expression air, comparer A
3The output of super permissible value start aforesaid " alarm " light emitting diode, news Chinese percussion instrument and trigger the bidirectional triode thyristor power switch turn-off the gas pipeline solenoid valve in, also start " leakage " light emitting diode, the housing relative set indicates the light inlet window of " leakage " printed words, also cuts off the bidirectional triode thyristor power switch of exhaust fan through photoelectrical coupler.
2 watch-dogs as claimed in claim 1 is characterized in that: be provided with rectifying voltage regulator in the housing of watch-dog.
3 watch-dogs as claimed in claim 1 is characterized in that: combustible gas sensor is natural gas sensor and coal gas sensor.
4 watch-dogs as claimed in claim 1 is characterized in that: comparer A
1, A
2, A
3It is respectively each the single discharge circuit among the four-operational amplifier integrated circuit LM324.
5 watch-dogs as claimed in claim 1 is characterized in that: the bidirectional triode thyristor power switch of exhaust fan is parallel with hand switch K.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99219476 CN2386496Y (en) | 1999-08-17 | 1999-08-17 | Domestic gas safety monitor unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99219476 CN2386496Y (en) | 1999-08-17 | 1999-08-17 | Domestic gas safety monitor unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2386496Y true CN2386496Y (en) | 2000-07-05 |
Family
ID=34010390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99219476 Expired - Fee Related CN2386496Y (en) | 1999-08-17 | 1999-08-17 | Domestic gas safety monitor unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2386496Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101840623A (en) * | 2010-05-15 | 2010-09-22 | 中兴通讯股份有限公司 | Intelligent alarming method, device and system |
| CN104346894A (en) * | 2014-10-30 | 2015-02-11 | 苏州佑瑞检测技术有限公司 | Kitchen safety detecting system |
| CN104408861A (en) * | 2014-10-30 | 2015-03-11 | 苏州佑瑞检测技术有限公司 | Kitchen safety detection method |
| CN105301974A (en) * | 2015-11-02 | 2016-02-03 | 苏州美达瑞电子有限公司 | Household fuel gas intelligent monitoring method |
-
1999
- 1999-08-17 CN CN 99219476 patent/CN2386496Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101840623A (en) * | 2010-05-15 | 2010-09-22 | 中兴通讯股份有限公司 | Intelligent alarming method, device and system |
| WO2011143958A1 (en) * | 2010-05-15 | 2011-11-24 | 中兴通讯股份有限公司 | Intelligent alarming method, device and system |
| CN104346894A (en) * | 2014-10-30 | 2015-02-11 | 苏州佑瑞检测技术有限公司 | Kitchen safety detecting system |
| CN104408861A (en) * | 2014-10-30 | 2015-03-11 | 苏州佑瑞检测技术有限公司 | Kitchen safety detection method |
| CN106652311A (en) * | 2014-10-30 | 2017-05-10 | 陈国栋 | Kitchen safety detection system employing digital logic circuit |
| CN106652312A (en) * | 2014-10-30 | 2017-05-10 | 陈国栋 | Working method of kitchen safety detection system employing digital logic circuit |
| CN105301974A (en) * | 2015-11-02 | 2016-02-03 | 苏州美达瑞电子有限公司 | Household fuel gas intelligent monitoring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Ji Lianyong Document name: Notification of acceptance |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |