CN1963329A - Gas water heater capable of harmful gas monitoring and alarming and method of monitoring and alarming - Google Patents
Gas water heater capable of harmful gas monitoring and alarming and method of monitoring and alarming Download PDFInfo
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- CN1963329A CN1963329A CN 200610097939 CN200610097939A CN1963329A CN 1963329 A CN1963329 A CN 1963329A CN 200610097939 CN200610097939 CN 200610097939 CN 200610097939 A CN200610097939 A CN 200610097939A CN 1963329 A CN1963329 A CN 1963329A
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Abstract
It relates to a gas combustion heater with hazardous gas monitoring and alarm functions. It has split body and gas detecting unit which has gas sensor indoor and is connected with processing control unit inside the body. The gas detecting unit or the processing control unit connects with the alarm unit. When the density of the hazardous gas increases, process control or data process unit will send signals to compare with the preset valve value to make sure whether it has exceed the preset value and alarm. With flexible split structure, it overcomes the leakage of transmission channels or waste exhaust defects occurred in the processing of using other combustion compliances, effectively preventing the happening of accidents due to CO density scale or gas leakage.
Description
Technical field
The present invention relates to a kind of gas heater with monitoring harmful gases warning function, especially a kind of gas heater with gas leakage and/or CO gas-monitoring warning function, the alarming method by monitoring that also relates to this water heater simultaneously belongs to family expenses burner technical field.
Background technology
According to statistics, the accident casualty number that causes because of gas leakage has risen to the 3rd of the improper number of casualties after road traffic, the industrial accident.And the gas leakage that wherein causes because of improper use gas heater, CO waste gas intoxication accident occupy the first place.At present, the gas heater accident has become social usefulness gas accident " first killer ".Gas leakage, CO poisoning and possibility breaking out of fire etc. are the main causes that current many families dare not use gas heater, also are that the occupation rate of market of gas heater develops into the direct cause of being defeated by electric heater (having only 40% occupation rate of market) situation now from original outshining othersOne branch of the tree is particularly thriving.
Retrieval is found, China's utility model patent 00237346.7 " gas heater interlink warning device " discloses a kind of gas heater, ventilation equipment, gas leakage alarm and the waste gas circuit of whole interlock automatic control of reporting to the police that exceeds standard, realized that leak sensor is by timing cycling circuit control discontinuous operation, waste gas is closed water heater, functions such as gas leakage alarm rear venting equipment operation after exceeding standard and reporting to the police.In addition; Chinese invention patent application 200510049317.5 " the gas heater gas leakage protector of external A/D converter " provides a kind of gas heater gas leakage protector of external A/D converter; gas security output is connected with the I/O input of single-chip microcomputer in the controlling device for water heater behind external A/D converter; be connected with valve circuit and warning circuit by controlling device for water heater; when having realized that combustion gas exceeds standard, Single-chip Controlling is cut off source of the gas and is sent the function of warning.
Applicant finds according to intensive investigation, and above-mentioned prior art and failing thoroughly solves the problem that combustion gas and CO gas leak.Because in the practical application of water heater, except leakage itself, also there is the leakage of other links such as transfer pipeline, and other gas appliance exhaust gas discharging (for example kitchen range) when using.Above-mentioned prior art obviously can not the direct detection indoor air in the concentration of combustion gas and CO gas, thereby can not effectively prevent to use gas heater the time because of indoor fuel gas leaks or the CO gas concentration exceeds standard and causes accident.In addition, whether probe unit is in normal operating conditions all the time is the necessary guarantee of guaranteeing that gas heater is safe in utilization, and whether above-mentioned prior art can't lose efficacy the detection alarm unit, do not consider the method for operation of alarm unit inefficacy back system yet, therefore have bigger limitation in actual use.
External relevant patent is retrieved discovery, U.S. Pat 5797358 disclosed " control system of gas heater " though the control system that also provides a kind of gas security, CO sensor and water heater processor to be electrically connected, there are the problems referred to above equally in this technology.
Summary of the invention
Primary and foremost purpose of the present invention is: at the shortcoming of above prior art existence, propose a kind ofly to have the monitoring harmful gases warning function, especially have a gas heater of gas leakage and/or CO gas-monitoring warning function, provide corresponding alarming method by monitoring simultaneously, thus when effectively preventing to use gas heater because of indoor fuel gas leaks or the CO gas concentration exceeds standard and causes accident.
Further aim of the present invention is: propose a kind of gas heater that can the detection alarm function whether loses efficacy, further guarantee the reliable operation of gas heater and safe in utilization.
In order to reach above primary and foremost purpose, gas heater main body and detection of gas unit that gas heater of the present invention adopts split to be provided with; Described detection of gas unit contains gas sensor, is placed in indoor monitoring place that needs, and is connected with processing and control element (PCE) communication in the gas heater main body; One of described detection of gas unit and processing and control element (PCE) unit taking alarm.
The monitoring, alarming step of gas heater of the present invention is:
The detection of gas unit is converted into the signal of telecommunication with the gas concentration signal of experiencing, and is sent to the processing and control element (PCE) of water heater main body by communication;
Processing and control element (PCE) in the water heater main body will transmit signal and predetermined threshold compares, and when surpassing threshold value, sends alarm command;
Alarm unit is accepted to send alarm signal behind the alarm command.
When the detection of gas unit itself contained data processing unit, monitoring, alarming step of the present invention was:
The detection of gas unit is converted into the signal of telecommunication with the gas concentration signal of experiencing, and sends data processing unit to;
Data processing unit compares signal and predetermined threshold, passes the signal to the processing and control element (PCE) of water heater main body simultaneously by communication; Perhaps data processing unit will transmit signal and directly be sent to the processing and control element (PCE) of water heater main body by communication, and the processing and control element (PCE) in the water heater main body compares signal and the predetermined threshold that receives;
When signal surpassed predetermined threshold, one of data processing unit and processing and control element (PCE) sent alarm command;
Alarm unit is accepted to send alarm signal behind the alarm command.
In order to reach further purpose, be connected for two-way wired or wireless communication between the processing and control element (PCE) in the gas heater main body of the present invention and the detection of gas unit.During work, processing and control element (PCE) sends test signal, sends the detection of gas unit to;
When normal response was failed in the detection of gas unit, processing and control element (PCE) sent the circular signal.
Of the present invention further improving is, the control output end of the processing and control element (PCE) in the water heater main body is connected with the controlled end of gas supply pipe road valve, when receiving detectable signal above threshold value, when sending alarm command, also send control signal, cut off gas supply pipe road valve.
Like this, the detection of gas unit can be installed in position in combustion gas and the easy room of assembling of CO concentration as required flexibly, and water heater then is installed in the position of safety and handled easily.When user such as undesirable gas detecting function or the maintenance of detection of gas element failure, processing and control element (PCE) carries out work by the operating mode of alarm free function in the water heater main body, and main frame shows the circular information of detection of gas element failure simultaneously.When the water heater master controller detect the detection of gas cell operation normal after, accept and signal that real-time response detection of gas unit is sent, by handling, source of the gas etc. is reported to the police, is cut off in control.
Understand easily, the invention has the beneficial effects as follows: gas heater of various models (especially gas instantaneous water heater) and the partial installation flexibly of detection of gas unit, thereby overcome that prior art can't monitor that other link such as transfer pipeline is leaked and the defective of other gas appliance toxic emission when using, can effectively prevent because of the accident that indoor fuel gas leaks or the CO gas concentration exceeds standard and causes, bring more use value for user and society.
Description of drawings
Fig. 1 is the circuit theory diagrams of the embodiment of the invention one.
Fig. 2 is the theory diagram of corresponding diagram 1 embodiment.
Fig. 3 is the circuit theory diagrams of the embodiment of the invention two.
Fig. 4 is the theory diagram of corresponding diagram 3 embodiment.
The specific embodiment
Below in conjunction with the accompanying drawing preferred embodiment this patent is further described.
Embodiment one
The gas heater of present embodiment band gas leakage alarm and/or CO gas alarm function as shown in Figure 1, detection of gas unit 1 is detachable partial installation with gas heater main body 2, carry out data communication, and provide power supply by serial port communication chip U1 (model MAX202), U2 (model MAX202) each other by water heater.
Gas heater main body 2 includes data processing chip IC2 (model H83694), display module 9, communication chip U2, buzzer F1 and the air valve body Vav1 as processing and control element (PCE), comprises mnemon EEPROM8 in the IC2.
Comprise CO sensor 5 (model TGS2442) in the detection of gas unit 1, data processing chip IC1 (model Mega8), IC1 meet serial port communication chip U1 (model MAX202), carry out serial communication with the water heater main body.The I/O mouth PB1 of IC1, PB2 output pulse signal are through switch transistor T 3, T4 control CO sensor 5.CO sensor 5 is experienced gas concentration in the environment by sensitive material, and output changes the I/O mouth PC0 that voltage passes to IC1.After PC0 receives voltage change, carry out the A/D conversion by inner A/D modular converter, and be converted into actual concentrations numerical value, detect the CO gas concentration simultaneously and whether surpass alarm settings concentration.Then, IC1 sends this concentration value information in the water heater main body data processing chip IC2 by serial data communication chip U1, U2.This process chip IC2 receives data message from detection of gas unit 1 by serial port communication chip U2, shows in real time by display module 9, simultaneously the data follow procedure is set the time of depositing, and is saved among the EEPROM 8, calls when conveniently needing and reads.IC2 also according to the situation of the data message that receives from serial port communication chip U2, is controlled the work of buzzer F1, air valve switch Vav1 simultaneously by switch transistor T 1, T2 and relay R e1 by PB1, PB2 mouth.
In addition, whether IC1 can detect CO sensor 5 in real time and lose efficacy, and by communication chip U1, U2 this information is passed to IC2.Lost efficacy if detect, IC2 is according to this information control water heater operation and provide information.
When the concentration value of indoor CO gas during less than alarm setting value, IC2 will output to display module 9, water heater operate as normal from the information that serial port communication chip U2 receives; When the concentration value of indoor CO gas rose to above alarm settings concentration, IC2 output control signal was given switch transistor T 2, by relay R e1, cuts off the power supply of air valve body Vav1; Output signal to switch transistor T 1 simultaneously, control buzzer F1 gives the alarm; IC2 gives data-signal simultaneously, by display module 9 output alarm codes.
When the user does not use gas heater (but this moment water heater be in "on" position) and when using other gas appliance, if indoor CO gas concentration does not reach alarm settings concentration, detection of gas unit 1 feedback concentration signal is given IC2, and master controller IC2 carries out the concentration demonstration with signal at display module 9 after receiving signal; Also reach setting concentration if indoor CO gas concentration increases, master control IC2 starts buzzer F1 after receiving signal, warnings of glimmering of control display module 9, and send associated control signal, forbid air valve body Vav1 unlatching.After indoor gas concentration returned to normal level, detection of gas unit 1 fed back signal to IC2, and IC2 stops the sound and light alarm of buzzer F1, display module 9 after receiving signal, and removes the signal of forbidding that air valve body Vav1 opens.
Referring to Fig. 2, the course of work of present embodiment can be sketched and be: when having fuel gas and/or CO gas in the room, after gas sensor 5 detects fuel gas and/or CO gas concentration, output correlation signal is to data processing chip IC1, after data processing chip IC1 detects signal from sensor 5, become corresponding concentration numerical value through treatment conversion, and judge whether this concentration value surpasses alarm settings concentration, then by data communication module U1, U2 passes to water heater data processing chip IC2 with related data, IC2 carries out concentration according to related data control display module 9 and shows, simultaneously, store these data into memory module 8.If this concentration value surpasses alarm settings concentration, IC2 controls alarm module 6 simultaneously and carries out sound and light alarm, and cuts off air valve by Air Valve Control module 7.
After data processing chip IC1 detects signal from sensor 5, also can signal be directly passed to water heater data processing chip IC2 by data communication module U1, U2, become corresponding concentration numerical value through the IC2 treatment conversion, and judge that whether this concentration value surpasses alarm settings concentration, carries out control corresponding then.Data processing chip IC1 sends IC2 to by data communication module U1, U2 after also detected signal from sensor 5 can being processed into corresponding concentration numbers value signal again, carries out corresponding control after being judged by IC2.
Among the figure 6 ' expression alarm module also can be positioned at probe unit, and 8 ' expression memory module can be external.
The circuit theory of present embodiment as shown in Figure 3, basic condition is same as the previously described embodiments.Detection of gas unit 1 also with 2 partial installations of gas heater main body, connect by holding wire between the two.Difference is: I/O mouth P20, the P21 output pulse signal of the data processing chip IC (model H83694) that gas heater main body 2 includes, sensor 5 through switch transistor T 3, T4, T5, T6, T7 control detection of gas unit 1, CO sensor 5 is experienced gas concentration in the environment by sensitive material, and output changes the I/O mouth PB0 that voltage passes to IC.After PB0 receives voltage change, carry out the A/D conversion by inner A/D modular converter, and be converted into actual concentrations numerical value, detect the CO gas concentration simultaneously and whether surpass alarm settings concentration.Its operation principle etc. can not given unnecessary details in addition referring to above-mentioned fact Example.
Its course of work is referring to Fig. 4, when having fuel gas and/or CO gas in the room, after gas sensor 5 detects fuel gas and/or CO gas concentration, pass to water heater data processing chip IC, after data processing chip IC detects signal from sensor 5, treatment conversion becomes corresponding concentration numerical value, and judges whether this concentration value surpasses alarm settings concentration.Then, IC carries out concentration according to this concentration Numerical Control display module 9 and shows, simultaneously, stores these data into memory module 8.If this concentration value surpasses alarm settings concentration, IC control alarm module 6 carries out sound and light alarm, and cuts off air valve by Air Valve Control module 7.
The invention is not restricted to the foregoing description, many variation designs can also be arranged.For example, that communication modes had both comprised was wired, it is wireless also to comprise, both comprised two-way, also comprise unidirectional; Alarm unit both can also can directly be controlled by the data processing unit in the probe unit by the control of the processing and control element (PCE) in the water heater main body; Display alarm in the alarm unit both can with the display screen dual-purpose of gas heater, also can be provided with separately; Each discrete device in the circuit further integrated or integrated device further separates; Or the like.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.
Claims (9)
1. the gas heater with gas leakage alarm and/or CO gas alarm function is characterized in that: the gas heater main body and the detection of gas unit that adopt split to be provided with; Described detection of gas unit contains gas sensor, is placed in indoor monitoring place that needs, and is connected with processing and control element (PCE) communication in the gas heater main body; One of described detection of gas unit and processing and control element (PCE) unit taking alarm.
2. gas heater according to claim 1 is characterized in that: the processing and control element (PCE) in the described gas heater main body is connected with detection of gas unit both-way communication.
3. gas heater according to claim 2 is characterized in that: the control output end of processing and control element (PCE) is connected with the controlled end of gas supply pipe road valve in the described water heater main body.
4. gas heater according to claim 2 is characterized in that: described water heater main body contains the display module that is connected with processing and control element (PCE), in order to show CO gas concentration and visual alarm.
5. gas heater according to claim 2 is characterized in that: described water heater main body contains the memory cell that is connected with processing and control element (PCE), in order to preserve the detection data supply and demand will the time call and read.Memory cell also can be positioned at probe unit.
6. according to the alarming method by monitoring of described band gas leakage alarm of claim 1 and/or CO gas alarm functional gas water heater, it is characterized in that may further comprise the steps:
The detection of gas unit is converted into the signal of telecommunication with the gas concentration signal of experiencing, and is sent to the processing and control element (PCE) of water heater main body by communication;
Processing and control element (PCE) in the water heater main body will transmit signal and predetermined threshold compares, and when surpassing threshold value, sends alarm command;
Alarm unit is accepted to send alarm signal behind the alarm command.
7. according to the alarming method by monitoring of described band gas leakage alarm of claim 1 and/or CO gas alarm functional gas water heater, it is characterized in that: when described detection of gas unit contained data processing unit, the monitoring, alarming step was:
The detection of gas unit is converted into the signal of telecommunication with the gas concentration signal of experiencing, and sends data processing unit to;
Data processing unit will transmit signal and predetermined threshold compares, and passes the signal to the processing and control element (PCE) of water heater main body simultaneously by communication; Perhaps data processing unit will transmit signal and directly be sent to the processing and control element (PCE) of water heater main body by communication, and the processing and control element (PCE) in the water heater main body compares signal and the predetermined threshold that receives;
When surpassing threshold value, one of data processing unit and processing and control element (PCE) send alarm command;
Alarm unit is accepted to send alarm signal behind the alarm command.
8. according to the alarming method by monitoring of claim 6 or 7 described gas heaters, it is characterized in that: the processing and control element (PCE) in the described gas heater main body is connected with detection of gas unit both-way communication, during work, processing and control element (PCE) sends test signal, sends the detection of gas unit to; When normal response was failed in the detection of gas unit, processing and control element (PCE) sent the circular signal.
9. the alarming method by monitoring of described gas heater according to Claim 8, it is characterized in that: the control output end of the processing and control element (PCE) in the described water heater main body is connected with the controlled end of gas supply pipe road valve, when receiving detectable signal above threshold value, when sending alarm command, also send control signal, cut off gas supply pipe road valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610097939XA CN100436958C (en) | 2006-11-22 | 2006-11-22 | Gas water heater capable of harmful gas monitoring and alarming and method of monitoring and alarming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610097939XA CN100436958C (en) | 2006-11-22 | 2006-11-22 | Gas water heater capable of harmful gas monitoring and alarming and method of monitoring and alarming |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1963329A true CN1963329A (en) | 2007-05-16 |
| CN100436958C CN100436958C (en) | 2008-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB200610097939XA Ceased CN100436958C (en) | 2006-11-22 | 2006-11-22 | Gas water heater capable of harmful gas monitoring and alarming and method of monitoring and alarming |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109218A (en) * | 2009-12-28 | 2011-06-29 | 樱花卫厨（中国）股份有限公司 | Gas water heater with built-in gas detection device |
| CN103900264A (en) * | 2014-03-06 | 2014-07-02 | 宁波方太厨具有限公司 | Gas water heater and work control method therefore |
| CN104792017A (en) * | 2013-04-17 | 2015-07-22 | 苏海英 | Automatic alarming household gas water heater |
| CN105865036A (en) * | 2015-02-09 | 2016-08-17 | 株式会社能率 | Combustion device |
| CN108245918A (en) * | 2018-03-21 | 2018-07-06 | 南京工业大学 | Based on gas-monitoring and the polycrystalline silicon semiconductor rectifying column of acoustic emission cracking autoalarm |
| CN111380221A (en) * | 2018-12-27 | 2020-07-07 | 芜湖美的厨卫电器制造有限公司 | Gas water heater and control method thereof |
| CN112556205A (en) * | 2021-01-13 | 2021-03-26 | 杭州朵聪日用品有限公司 | Gas water heater preventing device for preventing carbon monoxide leakage and poisoning |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101696820B (en) * | 2009-09-18 | 2012-08-22 | 阿里斯顿热能产品(中国)有限公司 | Gas heater with functions of wireless remote control and automatic monitoring of harmful gas |
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| CN2125858U (en) * | 1992-05-16 | 1992-12-23 | 綦敦星 | safety alarm device for domestic gas water heater |
| JP3546070B2 (en) * | 1993-09-29 | 2004-07-21 | 株式会社ガスター | CO safety device for combustion equipment |
| CN2203766Y (en) * | 1994-04-18 | 1995-07-19 | 赵金宝 | Automatic cut-off device for overproof CO of gas water-heater |
| US5797358A (en) * | 1996-07-08 | 1998-08-25 | Aos Holding Company | Control system for a water heater |
| CN2426982Y (en) * | 2000-06-07 | 2001-04-18 | 娄跃辉 | Linkage alarmer for gas combustion water heater |
| CN100366988C (en) * | 2004-03-24 | 2008-02-06 | 谭启仁 | Omnidirectional human safety protector for forced exhausting gas water heater |
| JP2006132795A (en) * | 2004-11-02 | 2006-05-25 | Matsushita Electric Ind Co Ltd | Gas cut-off device |
| CN1664468A (en) * | 2005-03-09 | 2005-09-07 | 谭启仁 | Gas leakage protector with an external A/D converter of gas water heater |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109218A (en) * | 2009-12-28 | 2011-06-29 | 樱花卫厨（中国）股份有限公司 | Gas water heater with built-in gas detection device |
| CN104792017A (en) * | 2013-04-17 | 2015-07-22 | 苏海英 | Automatic alarming household gas water heater |
| CN103900264A (en) * | 2014-03-06 | 2014-07-02 | 宁波方太厨具有限公司 | Gas water heater and work control method therefore |
| CN103900264B (en) * | 2014-03-06 | 2016-09-21 | 宁波方太厨具有限公司 | A kind of gas heater and operation control method thereof |
| CN105865036A (en) * | 2015-02-09 | 2016-08-17 | 株式会社能率 | Combustion device |
| CN105865036B (en) * | 2015-02-09 | 2020-01-07 | 株式会社能率 | Combustion apparatus |
| CN108245918A (en) * | 2018-03-21 | 2018-07-06 | 南京工业大学 | Based on gas-monitoring and the polycrystalline silicon semiconductor rectifying column of acoustic emission cracking autoalarm |
| CN108245918B (en) * | 2018-03-21 | 2023-07-14 | 南京工业大学 | Automatic alarm for cracking of semiconductor polysilicon rectifying tower based on gas monitoring and sound emission technology |
| CN111380221A (en) * | 2018-12-27 | 2020-07-07 | 芜湖美的厨卫电器制造有限公司 | Gas water heater and control method thereof |
| CN112556205A (en) * | 2021-01-13 | 2021-03-26 | 杭州朵聪日用品有限公司 | Gas water heater preventing device for preventing carbon monoxide leakage and poisoning |
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| CN100436958C (en) | 2008-11-26 |
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