CN104748396B - Domestic gas-fired water heater automatic alarm method - Google Patents
Domestic gas-fired water heater automatic alarm method Download PDFInfo
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- CN104748396B CN104748396B CN201510137671.7A CN201510137671A CN104748396B CN 104748396 B CN104748396 B CN 104748396B CN 201510137671 A CN201510137671 A CN 201510137671A CN 104748396 B CN104748396 B CN 104748396B
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Abstract
The present invention relates to a kind of domestic gas-fired water heater automatic alarm method, including：Controller and coal gas survey meter, carbonomonoxide concentration detection means, infrared human body detection sensor are attached on the agent set of domestic gas-fired water heater, controller connects coal gas survey meter, carbonomonoxide concentration detection means, infrared human body detection sensor respectively, the controller judges whether to gas alarm according to the testing result of coal gas survey meter, carbonomonoxide concentration detection means, infrared human body detection sensor, wherein, the agent set includes shell, burner, water inlet pipe, outlet pipe, exhaust uptake and heat exchanger.Pass through the present invention, the insufficient gas concentration with room air of gas-fired is able to detect that, gives gas alarm information transmission to inhabitation people in time, people takes measures in order to live, the potential safety hazard of possible gas explosion and anthracemia is avoided, ensure that the person and property safety of people.
Description
The present invention be Application No. 2013101313780, the applying date be on April 17th, 2013, it is entitled " family expenses fire
The divisional application of the patent of gas water heater automatic alarm method ".
Technical field
The present invention relates to a kind of domestic gas-fired water heater automatic alarm method, more particularly to it is a kind of be used for it is indoor being capable of root
The domestic gas-fired water heater automatic alarm method for determining whether to be alarmed according to gas leak situation, when inhabitation people is not closed indoors
Note gas leak or inhabitation people not indoors when, coal gas imperfect combustion situation can be automatically analyzed out and indoor coal gas is dense
Degree, and solution is actively found, ensure the safety of house property and the person.
Background technology
The basic functional principle of gas heater is that cold water enters water heater, flows through Water-gas linkage valve body the one of circulating water
Under the effect of constant-pressure difference, Water-gas linkage valve is promoted, and promote dc source microswitch simultaneously by power on and start
Pulse igniter, combustion gas gas transmission electromagnetic valve is at the same time opened, continue to light a fire again automatically by pulse igniter, Zhi Daodian
Untill fire is successfully entered normal operating conditions, this process about continuously maintains 5~10 second time, when gas heater is in the course of work
Or there is water shortage or hydraulic pressure deficiency, short of electricity in ignition process, to lack combustion gas, hot water temperature too high, unexpected when putting out the phenomena of the failure such as fire,
The signal that pulse igniter will feed back by detecting inductive needle, automatically cut off power supply, the short of electricity supply of combustion gas gas transmission electromagnetic valve
In the case of reply original normally close valve state at once, that is to say, that now have been turned off fuel gas path, close gas heater and rise
Safeguard protection acts on.A usual qualified gas heater, refers to property indices and meets GB6932-2001《Domestic gas
Fast water heater》The gas heater of requirements of the national standard, it is from fired state to the whole process into normal operating conditions
Automatic Control, without artificial adjustment or additional setting, as long as opening cold water switch or connecting cold water source, pass through runoff investigation
Device and air volume regulating device adjust to obtain suitable water and water temperature, when gas heater is just shorter at 5~10 seconds at once
Interior to enter normal operating conditions, while output hot water, once there is above chance failure, gas heater will be in 10 seconds
Work is automatically stopped, and cuts off fuel gas path at once, prevents combustion gas from continuing to flow out, and can not be reopened automatically, except non-artificial
Ground exclude above failure after restart gas heater again, can normal operating conditions, therefore, its service behaviour is safer
Reliably.
But the usual blow-by in combustion chamber of existing gas heater, water heater is used for indoor, when water heater burns
Required oxygen is also derived from interior, and waste gas caused by burning is arranged to outdoor by flue, so water heater can not be arranged on
Bathroom, simultaneously as natural inflow during burning, combustion gas and air mixing are incomplete, have impact on the thermal efficiency, imperfect combustion can also
Carbon monoxide is produced, causes indoor inhabitation people to be poisoned, or after gas leakage and oxygen mix, easily sets off an explosion, can all give people
Body and property safety bring hidden danger.
Therefore, it is necessary to which a kind of be used for indoor domestic gas-fired water heater automatic alarm method, detect in time in indoor environment
Gas leakage situation and carbonomonoxide concentration, it is determined whether need to inhabitation people alarm, take measures, such as open a window, die, protect
It is fresh to hinder room air, prevents potential safety hazard, meanwhile, whether decided whether indoors by audible alarm according to inhabitation people,
Or warning message is sent on the mobile phone of people not indoors by wireless network, ensures the timely biography of warning message
Pass.
The content of the invention
In order to solve the above problems, it is used for indoor domestic gas-fired water heater automatic alarm side the invention provides a kind of
Method so that user need not ensure the concern to room air constantly, and gas leakage and an oxygen in room air are observed without oneself
Change concentration of carbon problem, warned in time, so as to improve indoor environment, ensure the person and property safety.
According to an aspect of the present invention, there is provided a kind of to be used for indoor domestic gas-fired water heater automatic alarm method, bag
Include and controller and coal gas survey meter, carbonomonoxide concentration detection means, infrared human body detection sensor are attached to domestic gas
On the agent set of water heater, controller connects coal gas survey meter, carbonomonoxide concentration detection means, infrared human body detection respectively
Sensor, the controller is according to coal gas survey meter, the detection of carbonomonoxide concentration detection means, infrared human body detection sensor
As a result gas alarm is judged whether to, wherein, the agent set includes shell, burner, water inlet pipe, outlet pipe, exhaust
Flue and heat exchanger.
More specifically, the domestic gas-fired water heater automatic alarm method further comprises：The coal of installation on the burner
Gas survey meter, whether gas leak occurs when detecting the domestic gas-fired water heater work；Carbonomonoxide concentration detection means makes
It is measured with asepwirator pump suction indoor gas is carried, with the indoor carbonomonoxide concentration of detection；Infrared human body detection sensor
Using passive type infrared human body detection mode, it whether there is human body in detecting chamber；Controller receives coal gas survey meter, an oxygen respectively
Change the testing result of concentration of carbon detection means and infrared human body detection sensor, when coal gas survey meter detect gas leak or
Carbonomonoxide concentration detection means detects that concentration of indoor carbon monoxide value is more than 20mg/m3When, gas alarm signal is sent, and
The result of indoor human body is detected according to infrared human body detection sensor, gas alarm operation is carried out, when coal gas survey meter does not detect
Detect that concentration of indoor carbon monoxide value is less than 20mg/m to gas leak or carbonomonoxide concentration detection means3When, send
Coal gas normal signal；Wherein, the domestic gas-fired water heater automatic alarm method also includes, and starts in domestic gas-fired water heater
Afterwards, using the cell apparatus in the shell of the domestic gas-fired water heater, to each of the domestic gas-fired water heater
Device is powered；Wherein, the result that indoor human body is detected according to infrared human body detection sensor, gas alarm operation bag is carried out
Include, when infrared human body detection sensor detects indoor human body, read using voice playing module from memory and coal gas
Auditory tone cues file corresponding to alarm simultaneously plays the auditory tone cues file, when infrared human body detection sensor does not detect interior
During human body, gas alarm message is sent to by purpose network or purpose by cordless communication network using wireless data communication module
Mobile phone；Wherein it is possible to carbonomonoxide concentration detection means, infrared human body detection sensor and wireless data communication module are placed
In on the shell of agent set, cell apparatus, controller, memory and voice playing module can be positioned over agent set
In shell.
More specifically, the domestic gas-fired water heater automatic alarm method further comprises：The RFDC mould
Block can be GPRS data communication unit or 3G data communication units, and the purpose network is local safety management network, institute
State the mobile phone that purpose mobile phone is house inhabitation people.
More specifically, the domestic gas-fired water heater automatic alarm method further comprises：During the water inlet water inlet tube, open
Dynamic gas heater, when the outlet pipe is closed, gas heater is stopped.
More specifically, the domestic gas-fired water heater automatic alarm method further comprises：In the shell of gas heater
Side wall can open up louver(-vre), can open up observation window with burner corresponding position on the housing.
Brief description of the drawings
Embodiment of the present invention is described below with reference to accompanying drawing, wherein：
The flow chart for the domestic gas-fired water heater automatic alarm method that Fig. 1 is shown according to an embodiment of the present invention.
Embodiment
The embodiment of the domestic gas-fired water heater automatic alarm method of the present invention is carried out in detail below with reference to accompanying drawings
Explanation.
Fig. 1 shows the flow chart of the domestic gas-fired water heater automatic alarm method shown according to an embodiment of the present invention.Its
In be used for interior domestic gas-fired water heater automatic alarm method include：Controller and coal gas survey meter, carbon monoxide is dense
Degree detection means, infrared human body detection sensor are attached on the agent set of domestic gas-fired water heater, and controller connects respectively
Coal gas survey meter, carbonomonoxide concentration detection means, infrared human body detection sensor, the controller according to coal gas survey meter,
Carbonomonoxide concentration detection means, the testing result of infrared human body detection sensor judge whether to gas alarm, wherein, institute
Stating agent set includes shell, burner, water inlet pipe, outlet pipe, exhaust uptake and heat exchanger.The controller is according to coal gas
Survey meter, carbonomonoxide concentration detection means, the testing result of infrared human body detection sensor judge whether to gas alarm
Specifically include, coal gas survey meter on the burner is installed, whether coal gas occurs when detecting the domestic gas-fired water heater work
Leakage；Carbonomonoxide concentration detection means use carries asepwirator pump suction indoor gas and is measured, with the indoor oxygen of detection
Change concentration of carbon；Infrared human body detection sensor uses passive type infrared human body detection mode, whether there is human body in detecting chamber；Control
Device processed receives the testing result of coal gas survey meter, carbonomonoxide concentration detection means and infrared human body detection sensor respectively, when
Coal gas survey meter detects gas leak or carbonomonoxide concentration detection means detects that concentration of indoor carbon monoxide value is more than
20mg/m3When, gas alarm signal is sent, and the result of indoor human body is detected according to infrared human body detection sensor, carry out coal
Gas alarm operation, when coal gas survey meter does not detect gas leak or carbonomonoxide concentration detection means detects an indoor oxygen
Change concentration of carbon value and be less than 20mg/m3When, send coal gas normal signal；Wherein, the domestic gas-fired water heater automatic alarm method
Also include, after domestic gas-fired water heater startup, using the cell apparatus in the shell of the domestic gas-fired water heater,
Each device of the domestic gas-fired water heater is powered；Wherein, it is described according to people in infrared human body detection sensor detecting chamber
The result of body, carrying out gas alarm operation includes, and when infrared human body detection sensor detects indoor human body, is broadcast using voice
Amplification module reads auditory tone cues file corresponding with gas alarm from memory and plays the auditory tone cues file, when infrared
When human body detection sensor does not detect indoor human body, using wireless data communication module by cordless communication network by coal gas report
Alert news breath is sent to purpose network or purpose mobile phone；Wherein it is possible to carbonomonoxide concentration detection means, infrared human body detection are passed
Sensor and wireless data communication module are positioned on the shell of agent set, can be by cell apparatus, controller, memory and language
Sound playing module is positioned in the shell of agent set.
Wherein, infrared human body detection sensor, using passive type infrared human body detection mode, it whether there is people in detecting chamber
Body.In nature, object will all produce infrared spectrum during any (- 273 degree) higher than absolute temperature, the object of different temperatures,
The wavelength of its infrared energy discharged is different, and therefore, infrared wavelength is related to the height of temperature.It is special according to this
Property understand, human body is also a hot body, and human body has constant body temperature, typically 36 to 37 degree, so specific wavelength 7 can be sent
To the infrared ray of 10 microns, according in a characteristic, it is possible to produce the sensitive infrared sensor detection people of corresponding wave band
The presence of body, because gas heater is a heater in itself, but it is not 36 to 37 constant degree that it is stable, therefore can be made
The presence of human body is determined with infrared ray.The passive infrared sensor is by detecting the infrared of 10 microns of human-body emitting
Line and be operated.The infrared ray of 10 microns of human-body emitting after that optical filter enhancing of luxuriant and rich with fragrance mud by focusing on infrared sense
On Ying Yuan.Infrared induction source generally use pyroelectricity element, this element change receiving human infrared radiation temperature
When can lose charge balance, outwards discharge electric charge, subsequent conditioning circuit is by can just produce detection signal after detection process.
In addition, the domestic gas-fired water heater automatic alarm method further comprises：The wireless data communication module can
To be GPRS data communication unit or 3G data communication units, the purpose network is local safety management network, the mesh
Mobile phone be house inhabitation people mobile phone.As carbonomonoxide concentration value is more than 20mg/m indoors3When, because carbon monoxide is nothing
Tasteless nonirritant other of color, people are difficult thoughts and feelings of the very first time by itself, at this moment prompt people by audible alarm,
Or infrared sensor detection it is indoor nobody when, carbon monoxide is exceeded and specific carbonomonoxide concentration is sent to inhabitation people
On mobile phone, it is easy to related personnel's Emergency Assistance, so as to ensure rescue time.
Wherein, carbon monoxide (carbon monoxide, CO) sterling is colourless, odorless, nonirritant gas.Molecule
Amount 28.01, density 1.250g/l, freezing point are -207 DEG C, -190 DEG C of boiling point.Solubility in water is very low, but is soluble in ammoniacal liquor.
The air mixed explosion limit is 12.5%~74%.Carbon monoxide can combine after entering human body with the hemoglobin in blood,
And then prevent hemoglobin from being combined with oxygen, so as to cause body tissue anoxic occur, cause human body death by suffocation.Therefore one
Carbonoxide has toxicity.Carbon monoxide is colourless, odorless, tasteless gas, therefore is easy to ignore and cause to be poisoned.Carbon monoxide is most
High acceptable concentration：20mg/m3.Carbon monoxide acute poisoning, slight, moderate and severe three-level can be divided into according to clinical manifestation.Gently
Moderate intoxication shows as dizziness, dim eyesight, severe headache, tinnitus, temples constriction and pulsatory feeling, still there is Nausea and vomiting, palpitaition, four
Myasthenia of limbs, but without stupor.Depart from poisoning scene, suck fresh air or carry out after suitably treating, symptom can rapidly disappear.In
Moderate intoxication is also embodied by hidrosis at initial stage, agitation, instability of gait, skin and mucosal pallor in addition to above-mentioned symptom, and as poisoning adds
There is cherry-red again, the most obvious with cheek shirtfront and femoribus internus, haziness is even gone into a coma.If rescue in time,
It can revive quickly, typically without significant complications and supervention disease.Severe intoxication removes the symptom with part or all of moderate intoxication
Outside, patient can quickly enter different degrees of comatose state, the time can last for hours to it is several round the clock, it is tight often to there is mandibular joint
Close, tatanic general spasticity, gatism and pathologic reflex.Often occur together toxic encephalopathy, myocarditis, suction human nature pneumonia, lung
Oedema and electrolyte disturbance etc..In addition, may occur in which a series of signs of a brain damage, such as body temperature rise, perspire, leucocyte increasing
More, blood glucose rise, glycosuria, albuminuria etc., it may also occur that biochemical changes such as lactic acid increase in blood and lactic acid dehydrogenase activity increases.
Brain wave is abnormal, shows as wave amplitude step-down during severe.Pump suction type carbonmonoxide detector of the present invention is that one kind can be with
Flexible configuration single gas or multiple gases detection alarm, it can be equipped with oxygen sensor, combustible gas sensor and
Toxic gas sensor or optional four kinds of gas sensors or optional single gas sensor.
In addition, the domestic gas-fired water heater automatic alarm method further comprises：During the water inlet water inlet tube, start combustion
Gas water heater, when the outlet pipe is closed, gas heater is stopped.Wherein the basic structure of gas heater mainly by
Valve body assembly, main burner, small fire burner, heat exchanger, safety device etc. form, and it also includes Flue Gas Water Heater cigarette
The forced-drainage device in road, forced-ventilated water heater.Valve body assembly controls the working procedure of whole water heater, it include water valve, air valve,
Microswitch and igniter etc..When water heater is installed, water inlet pipe, outlet pipe, valve should be all installed in Gas Pipe.Use hot water
During device, gas valve and water intaking valve are first opened.When opening outlet valve, small fire, then point are first lighted in igniter and microswitch control
Fire main fire.Some water heaters do not set small fire, can directly light main fire.Combustion gas passes through heat exchanger in burning Indoor Combustion, heat
Water is heated, hot water continually flows out from delivery port.Outlet valve is turned off, water heater is stopped.
In addition, the domestic gas-fired water heater automatic alarm method further comprises：In the side wall of outer shell of gas heater
Louver(-vre) can be opened up, can open up observation window with burner corresponding position on the housing, in order to which gas heater is ventilated
With facilitate maintenance personal and user to observe gas heater inner case, take measures in time.
Using the domestic gas-fired water heater automatic alarm method of the present invention, real-time detection and the report of indoor gas are realized
Alert, the specific targets in the gas include coal gas and carbon monoxide.The appearance gas leakage or carbon monoxide of environment indoors
In the case of excessive concentration, notify related personnel to give first aid in time, take windowing or the mode such as die, keep the unimpeded of indoor gas
And renewal.One convenience, monitoring of the indoor occupant to environment inside car is facilitated, another convenience, also can indoors in the case of nobody
It is enough that the warning message of coal gas and carbon monoxide is sent on inhabitation people's mobile phone in time, avoid hazard to person and property loss.
It is understood that although the present invention is disclosed as above with preferred embodiment, but above-described embodiment and it is not used to
Limit the present invention.For any those skilled in the art, without departing from the scope of the technical proposal of the invention,
Many possible changes and modifications are all made to technical solution of the present invention using the technology contents of the disclosure above, or are revised as
With the equivalent embodiment of change.Therefore, every content without departing from technical solution of the present invention, the technical spirit pair according to the present invention
Any simple modifications, equivalents, and modifications made for any of the above embodiments, still fall within the scope of technical solution of the present invention protection
It is interior.
Claims (1)
1. a kind of domestic gas-fired water heater automatic alarm method, including：
Controller and coal gas survey meter, carbonomonoxide concentration detection means, infrared human body detection sensor are attached to family expenses combustion
On the agent set of gas water heater, controller connects coal gas survey meter, carbonomonoxide concentration detection means, infrared human body and visited respectively
Sensor is surveyed, the controller is according to coal gas survey meter, the inspection of carbonomonoxide concentration detection means, infrared human body detection sensor
Survey result and judge whether to gas alarm, wherein, the agent set includes shell, burner, water inlet pipe, outlet pipe, row
Gas flue and heat exchanger；
Further comprise：
The coal gas survey meter of installation on the burner, whether gas leak occurs when detecting the domestic gas-fired water heater work；
Carbonomonoxide concentration detection means use carries asepwirator pump suction indoor gas and is measured, with the indoor oxidation of detection
Concentration of carbon；
Infrared human body detection sensor uses passive type infrared human body detection mode, whether there is human body in detecting chamber；
Controller receives the detection knot of coal gas survey meter, carbonomonoxide concentration detection means and infrared human body detection sensor respectively
Fruit, when coal gas survey meter detects gas leak or carbonomonoxide concentration detection means detects concentration of indoor carbon monoxide value
More than 20mg/m3When, gas alarm signal is sent, and the result of indoor human body is detected according to infrared human body detection sensor, enter
Row gas alarm operates, when coal gas survey meter does not detect gas leak or carbonomonoxide concentration detection means detects interior
Carbonomonoxide concentration value is less than 20mg/m3When, send coal gas normal signal；
Wherein, the domestic gas-fired water heater automatic alarm method also includes, and after domestic gas-fired water heater startup, uses installation
Cell apparatus in the shell of the domestic gas-fired water heater, each device of the domestic gas-fired water heater is powered；
Wherein, the result that indoor human body is detected according to infrared human body detection sensor, carrying out gas alarm operation includes, when
When infrared human body detection sensor detects indoor human body, read and gas alarm pair from memory using voice playing module
The auditory tone cues file answered simultaneously plays the auditory tone cues file, when infrared human body detection sensor does not detect indoor human body
When, gas alarm message is sent to by purpose network or purpose hand by cordless communication network using wireless data communication module
Machine；
Wherein, carbonomonoxide concentration detection means, infrared human body detection sensor and wireless data communication module are positioned over master
On the shell of body device, cell apparatus, controller, memory and voice playing module are positioned in the shell of agent set；
The wireless data communication module is GPRS data communication unit or 3G data communication units, and the purpose network is local
Safety management network, the purpose mobile phone is the mobile phone of house inhabitation people；
During the water inlet water inlet tube, start gas heater, when the outlet pipe is closed, gas heater is stopped；
Louver(-vre) is opened up in the side wall of outer shell of gas heater, opens up observation with burner corresponding position on the housing
Window；
Wherein, the agent set of the domestic gas-fired water heater also includes valve body assembly, and the burner is by main burner and small
Ignition combustor forms, and the valve body assembly controls the working procedure of whole domestic gas-fired water heater, including water valve, air valve, micro-
Dynamic switch and igniter, when the domestic gas-fired water heater is installed, valve is fitted with water inlet pipe and outlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510137671.7A CN104748396B (en) | 2013-04-17 | 2013-04-17 | Domestic gas-fired water heater automatic alarm method |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310131378.0A CN103196235B (en) | 2013-04-17 | 2013-04-17 | Domestic gas-fired water heater automatic alarm method |
| CN201510137671.7A CN104748396B (en) | 2013-04-17 | 2013-04-17 | Domestic gas-fired water heater automatic alarm method |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310131378.0A Division CN103196235B (en) | 2013-04-17 | 2013-04-17 | Domestic gas-fired water heater automatic alarm method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104748396A CN104748396A (en) | 2015-07-01 |
| CN104748396B true CN104748396B (en) | 2017-12-12 |
Family
ID=48718944
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510134092.7A Expired - Fee Related CN104792016B (en) | 2013-04-17 | 2013-04-17 | Domestic gas-fired water heater automatic alarm method |
| CN201310131378.0A Expired - Fee Related CN103196235B (en) | 2013-04-17 | 2013-04-17 | Domestic gas-fired water heater automatic alarm method |
| CN201510137671.7A Active CN104748396B (en) | 2013-04-17 | 2013-04-17 | Domestic gas-fired water heater automatic alarm method |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510134092.7A Expired - Fee Related CN104792016B (en) | 2013-04-17 | 2013-04-17 | Domestic gas-fired water heater automatic alarm method |
| CN201310131378.0A Expired - Fee Related CN103196235B (en) | 2013-04-17 | 2013-04-17 | Domestic gas-fired water heater automatic alarm method |
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| Country | Link |
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| CN (3) | CN104792016B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104748394B (en) * | 2015-03-03 | 2019-03-22 | 芜湖美的厨卫电器制造有限公司 | Gas heater safety system and gas heater |
| CN111397214A (en) * | 2019-01-03 | 2020-07-10 | 芜湖美的厨卫电器制造有限公司 | Gas water heater and control method thereof |
| CN111161510B (en) * | 2020-01-03 | 2021-06-01 | 上海安宏建设工程有限公司 | Automatic alarm device for household gas leakage |
| CN112113342A (en) * | 2020-08-25 | 2020-12-22 | 芜湖美的厨卫电器制造有限公司 | Water heater and method, device and machine readable storage medium thereof |
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| CN1087738A (en) * | 1992-11-26 | 1994-06-08 | 西科姆株式会社 | Burglary-resisting system and anti-theft device |
| GB2372130A (en) * | 2000-10-31 | 2002-08-14 | Mulheron Maureen | Monitoring system for a gas-fired boiler providing warning of a sensed condition approaching or in excess of a predetermined limit |
| CN2524035Y (en) * | 2002-01-15 | 2002-12-04 | 谭锦镛 | Remote-control safety valve for gas supply pipeline |
| CN201787734U (en) * | 2010-05-17 | 2011-04-06 | 康佳集团股份有限公司 | Pre-warning gas water heater |
| CN102693611A (en) * | 2012-05-29 | 2012-09-26 | 大连运筹科技有限公司 | A smart home alarm system |
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| US5807098A (en) * | 1996-04-26 | 1998-09-15 | Desa International, Inc. | Gas heater with alarm system |
| CN2420579Y (en) * | 2000-05-22 | 2001-02-21 | 申忠玉 | Human safety protector for water heater |
| CN201028634Y (en) * | 2007-03-19 | 2008-02-27 | 谢忠谚 | Bidirectional wireless radio frequency controller for gas water heater or gas fireplace |
| CN201368594Y (en) * | 2009-01-20 | 2009-12-23 | 海尔集团公司 | Carbon monoxide alarm device for gas water heater |
| CN201621864U (en) * | 2009-08-14 | 2010-11-03 | 广东万家乐燃气具有限公司 | Protection device of active-type gas leakage and limit exceeding of CO content |
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2013
- 2013-04-17 CN CN201510134092.7A patent/CN104792016B/en not_active Expired - Fee Related
- 2013-04-17 CN CN201310131378.0A patent/CN103196235B/en not_active Expired - Fee Related
- 2013-04-17 CN CN201510137671.7A patent/CN104748396B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1087738A (en) * | 1992-11-26 | 1994-06-08 | 西科姆株式会社 | Burglary-resisting system and anti-theft device |
| GB2372130A (en) * | 2000-10-31 | 2002-08-14 | Mulheron Maureen | Monitoring system for a gas-fired boiler providing warning of a sensed condition approaching or in excess of a predetermined limit |
| CN2524035Y (en) * | 2002-01-15 | 2002-12-04 | 谭锦镛 | Remote-control safety valve for gas supply pipeline |
| CN201787734U (en) * | 2010-05-17 | 2011-04-06 | 康佳集团股份有限公司 | Pre-warning gas water heater |
| CN102693611A (en) * | 2012-05-29 | 2012-09-26 | 大连运筹科技有限公司 | A smart home alarm system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103196235B (en) | 2015-08-19 |
| CN104792016A (en) | 2015-07-22 |
| CN104792016B (en) | 2016-04-20 |
| CN103196235A (en) | 2013-07-10 |
| CN104748396A (en) | 2015-07-01 |
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