CN101650076B - Ignition method and device for gas water heater - Google Patents
Ignition method and device for gas water heater Download PDFInfo
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- CN101650076B CN101650076B CN 200810133399 CN200810133399A CN101650076B CN 101650076 B CN101650076 B CN 101650076B CN 200810133399 CN200810133399 CN 200810133399 CN 200810133399 A CN200810133399 A CN 200810133399A CN 101650076 B CN101650076 B CN 101650076B
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Abstract
本发明涉及一种燃气热水器的控制方法，特别涉及一种燃气热水器的点火方法。包括下列步骤：A、点火器向燃气热水器的燃烧器点火；B、火焰检知器检测点火器点火是否成功，若是，则结束该次点火，否则执行下一步；C、控制器增大用于控制供向燃气热水器的燃烧器的燃气进气量的比例阀的开度，返回步骤A。本发明提高了燃气点火的成功率。本发明还涉及一种燃气热水器的点火装置，包括：点火器，用于向燃气热水器的燃烧器提供点火；火焰检知器，用于检测点火器点火是否成功；比例阀，用于控制供向燃气热水器的燃烧器的燃气进气量；控制器，用于根据火焰检知器检测点火器的点火是否成功的信号调节比例阀开度。
The invention relates to a control method of a gas water heater, in particular to an ignition method of a gas water heater. It includes the following steps: A. The igniter ignites the burner of the gas water heater; B. The flame detector detects whether the igniter is ignited successfully. Control the opening degree of the proportional valve of the gas intake amount supplied to the burner of the gas water heater, and return to step A. The invention improves the success rate of gas ignition. The present invention also relates to an ignition device for a gas water heater, comprising: an igniter, used to provide ignition to the burner of the gas water heater; a flame detector, used to detect whether the igniter is ignited successfully; a proportional valve, used to control the power supply The gas intake volume of the burner of the gas water heater; the controller is used to adjust the opening degree of the proportional valve according to the signal of the flame detector detecting whether the ignition of the igniter is successful.
Description
Technical field
The present invention relates to a kind of control method of gas heater, particularly a kind of ignition method of gas heater.The invention still further relates to a kind of igniter of gas heater.
Background technology
In at present commercially available gas heater, ignition process is all undertaken automatically controlling by gas, water, Electricity Federation control, as the disclosed control device of controlling gas utensil for safety automation in Chinese utility model patent 92203937.2.Ignition control device in this utility model mainly comprise be used to the master controller of controlling whole gas heater gas, water, Electricity Federation control, the pulsed high-voltage generator that is used for igniting be igniter, by the flame detecting device of flame probe and flame identification the electric circuit constitute and control the main fire valve of gas inlet amount and main fire valve drive assembly etc.After master controller receives starting-up signal, namely automatically open the electric pulse firing circuit, if light a fire successfully, the high-voltage pulse output at igniter is that the electric field that applies between ignition tip and flame probe will produce the electron stream of doing directed movement.The flame identification circuit is with the current signal input master controller that records afterwards, and through relatively confirming output order, the main fire valve drive operation is opened main internal heat valve, and the main burner of water heater is started working.At this moment, circuit enters stable detection-phase, and detection-phase namely burns.If the flame accident is extinguished, the flame probe can detect signal, repeats above-mentioned igniting again, opens the valve events process by master controller.
Yet there is a problem in this igniting device of gas water heater commonly used, that is exactly that the air inflow that offers igniter when once lighting a fire (instant heating hydrophone start after automatic ignition) is for the first time fixed, the intake valve aperture value that is Initial Stage after Ignition equals to delay intake valve aperture value when lighting a fire, that is to say, when once lighting a fire, intake valve provides constant gas quantity to light a fire with fixing aperture within the duration of ignition.And the quality of the combustion gas in actual the use is not identical, the air inflow of the combustion gas of namely being controlled by intake valve is probably different, if this moment is because deficiency of air causes the unsuccessful words of once lighting a fire, just water heater need to be shut down, again start repeats ignition process for the first time again, and this has caused very inconvenient in the use.
Therefore nowadays need a kind of gas water heater ignition method that can improve an ignition success rate, solving when using the combustion gas of different quality, due to deficiency of air cause once light a fire unsuccessful, thereby need the problem of igniting again of start again.
Summary of the invention
The object of the invention is to, a kind of ignition method of gas heater is provided, this ignition method solved due to deficiency of air cause once light a fire unsuccessful, thereby need the problem of igniting again of start again.
For achieving the above object, gas water heater ignition method of the present invention comprises the following steps:
A, igniter are lighted a fire to the burner of gas heater;
Whether B, flame detector test point firearm light a fire successful, if finish this time igniting, otherwise carry out next step;
C, controller increase the aperture for the proportioning valve of the gas inlet amount of controlling the burner that feeds to gas heater, return to steps A.
Gas water heater ignition method of the present invention, in ignition process of controller control, by the flame detector, whether igniting is successfully detected, whether successful signal contrast example valve opening is adjusted according to the igniting that detects again, progressively increase the aperture of proportioning valve, to increase the quantity delivered of combustion gas.Because the fuel gas supply amount that is used for igniting has increased, thus the ignition success rate after combustion gas increases greatly improve, thereby the success rate that when also just having improved the combustion gas of using various different qualities, water heater is once lighted a fire.
In gas water heater ignition method of the present invention, the described detection of step B is to carry out after the time-delay of setting.
Igniter igniting and the igniting of flame detector test point firearm whether successfully between; increase delay procedure; namely make the whether successful detection of just lighting a fire of flame detector after a period of time occurs for igniter igniting; what can guarantee like this that the flame detector detects is stable detection signal; thereby can avoid missing and increasing air demand because flame detector flase drop measures the not successful signal of igniting, also to increase the combustion gas that air demand causes unstable due to mistake with regard to having avoided.
In the gas water heater ignition method of the invention described above, the aperture of the described scaling up valve of step C is to increase with fixing slope.。
With the aperture of predefined fixed slope scaling up valve, the gas inlet amount is increased gradually, therefore can avoid the too many problem that causes the waste of combustion gas that increases due to each proportioning valve aperture.
In the gas water heater ignition method of the invention described above, also comprise after the described detection of step B igniting is unsuccessful: judge whether ignition process institute arrives setting-up time service time, if, finish this time igniting, otherwise execution in step C.
Increase time determining program, the time that is about to an ignition process is controlled within limits, can avoid the unconfined increase of time of an ignition process, avoid to be former by other thereby to cause the unsuccessful and ignition process endless loop that causes of igniting.
The gas water heater ignition method of the invention described above arrives setting-up time service time in described judgement ignition process institute and finishes also to comprise after this time igniting: increases described slope be used to increasing described aperture, return to steps A and carry out next time and light a fire.
When in the situation that igniting is that all right merit in setting-up time, can automatically light a fire again, namely can the control point firearm, flame detector and proportioning valve carry out an ignition process recited above again, this moment, the slope with the scaling up valve opening increased, and the igniting again of the proportioning valve aperture that makes increases slope and increases slope greater than igniting for the first time.The slope that the proportioning valve aperture increases owing to again the lighting a fire slope that the proportioning valve aperture increases when lighting a fire for the first time, so when again lighting a fire, the gas inlet amount increases manyly, even thereby the combustion gas condition of registering one's residence is different, also can be by regulating the aperture of proportioning valve, with the regulating gas air inflow, thereby realize reliable ignition.Therefore can realize under different combustion gas conditions, automatically adjust the size of igniting gas quantity, thereby improve the reliability of igniting again.
Another object of the present invention is to, a kind of igniter of gas heater is provided, comprising: igniter, igniter are connected with controller and are controlled by controller, are used for providing igniting to the burner of gas heater; Whether the flame detector is connected with controller, successful for detection of igniting; Proportioning valve is connected with controller, is used for controlling the gas inlet amount of the burner that feeds to gas heater; Controller, the work of control point firearm, and whether successfully regulate the proportioning valve aperture according to the igniting of flame detector test point firearm.
In this igniter, complete the co-ordination of controlling above-mentioned each device of water heater with controller, complete the workflow of igniting and the burning of gas, water, electricity, wind system.Whether the igniting that this controller can detect according to the flame detector successful signal, regulate the aperture of the proportioning valve that is used for control gas inlet amount, to regulate the air inflow of the combustion gas that is used for igniting, then continue igniting, so circulation, until the flame detector detects the successful signal of igniting, be ignition process one time.
The present invention can also comprise for the water flow sensor of controlling inflow and be used for providing the blower fan of the exhaust of needs when burning.
When opening water heater, if having detected water, water flow sensor flows into, just control point firearm igniting of controller can be avoided dry combustion method like this, has increased security.And blower fan can provide the exhaust in the igniter ignition process, and also providing simultaneously is the required air of fuel gas buring.
Description of drawings
Fig. 1 is the structure diagram of a specific embodiment of igniting device of gas water heater of the present invention;
Fig. 2 is the ignition method flow chart of gas heater of the present invention;
Fig. 3 is for also comprising the ignition method flow chart of the present invention of delay procedure;
Fig. 4 is for also comprising the ignition method flow chart of the present invention of time determining program;
Fig. 5 is for also comprising the ignition method flow chart of the present invention that increases proportioning valve aperture slope;
Fig. 6 is for also comprising the structure diagram of the igniter of flow sensor and blower fan.
The specific embodiment
Describe the present invention below in conjunction with specific embodiment.
Fig. 1 is the structure diagram of a specific embodiment of the igniter of gas heater in the present invention.As shown in Figure 1, in this embodiment, igniter mainly comprises igniter 2, flame detector 3 and the proportioning valve 4 of being controlled by controller 1 respectively.Wherein, igniter 2 is connected as the drive end of pulsed high-voltage generator with controller 1, and being used for provides igniting to burner; Flame detector 3 for detection of igniter 2 in whether success of the igniting at burner place, it is connected with input with the drive end of controller 1, can control its action by controller 1, and will light a fire whether successful signal returns to controller 1, certainly this flame detector 3 also can be can't help controller 1 and controlled and occur, and action occurs to detect voluntarily according to the time; Proportioning valve 4 is connected with the drive end of controller 1, is used for controlling the air inflow of combustion gas; Controller 1 is used for controlling the co-ordination of above-mentioned each device of water heater, completes the workflow of igniting and the burning of gas, water, electricity, wind system.
Fig. 2 is the flow chart of the ignition method of gas heater in the present invention, and igniter shown in Figure 1 is lighted a fire according to the ignition process of Fig. 2.When controller 1 receives the water heater starting-up signal, send the control signal that makes igniter 2 igniting, igniter 2 begins igniting, as shown in Figure 2.Controller 1 sends and controls flame detector 3 and detect whether successful control signal of igniting subsequently, and flame detector 3 begins to detect whether success of igniting, and an igniting that detects whether successful signal is issued controller 1.If light a fire successfully, water heater finishes this time igniting, enters next program.Unsuccessful if light a fire, controller 1 is regulated and is used for controlling igniting with the proportioning valve 4 of the air inflow of combustion gas, the proportioning valve aperture of proportioning valve 4 is increased, thereby increase the gas inlet amount.Controller 1 control point firearm 2 continues igniting subsequently, and igniter 2 repeats above-mentioned ignition process in the situation that the gas inlet amount increases.Until flame detector 3 detects the successful signal of igniting, it is an ignition process.Wherein the slope of proportioning valve 4 apertures increases is preferably the fixed value that is preset in controller 1.Certainly the slope of proportioning valve 4 apertures increases also can change.In the igniter of this optimization, because the fuel gas supply amount that is used for igniting increases gradually, and the increase of gas quantity can improve ignition success rate greatly, even this moment is due to the different combustion gas deficiencies that cause for igniting of quality of combustion gas, also can increase the gas inlet amount by controller 1, thereby improve the success rate that the water heater when using the different quality combustion gas is once lighted a fire.
Whether successful Fig. 3 is for also comprising the ignition method flow chart of the present invention of delay procedure, namely can also detect to light a fire at controller 1 control point firearm 2 igniting and flame detector 3 between process, delay procedure to be set, as shown in Figure 3.This delay procedure preferably is made as two seconds, namely after controller 1 sends the control signal two seconds that makes igniter 2 igniting, then sends and makes flame detector 3 detect whether successful signal of igniting.Delay procedure is set, can guarantees that it is whether successful signal of stable igniting that flame detector 3 detects the signal that obtains, thereby avoid causing because the duration of ignition is not abundant flame detector 3 to detect the signal of mistake.
Fig. 4 is for also comprising the ignition method flow chart of the present invention of time determining program, namely can also receive setup times determining program between the program of the unsuccessful signal of igniting that flame detector 3 detects and controller 1 control ratio valve 4 apertures increases at controller 1, as shown in Figure 4, when the actual ignition time during less than Preset Time, the aperture of scaling up valve 4, igniting again.When the actual ignition time is equal to or greater than Preset Time, finish this ignition process.
Fig. 5 is for also comprising the ignition method flow chart of the present invention that increases proportioning valve aperture slope, namely can also work as and automatically light a fire again after the above-mentioned unsuccessful process of once lighting a fire finishes, namely can igniter 2, flame detector 3 and proportioning valve 4 carry out an ignition process recited above again, the igniting again of proportioning valve aperture increased slope and increased slope greater than igniting for the first time this moment.The slope that increases due to the proportioning valve aperture of igniting has again increased, thus the gas inlet amount also further increase, thereby can further improve the successful reliability of igniting.
Fig. 6 is for also comprising the structure diagram of the igniter of flow sensor 5 and blower fan 6, and this moment, water flow sensor 5 can be controlled the inflow of gas heater, and blower fan 6 can provide exhaust, while in combustion process that the air that needs also is provided.
When opening water heater, if having detected water, water flow sensor 5 flows into, just control point firearm igniting of controller can be avoided dry combustion method like this, has increased security.And blower fan 6 can provide igniter when igniting fuel gas buring required air.
In combustion process, can also detect a plurality of points, with real-time control gas quantity.As detect the gas port gaseous-pressure and come regulating gas outlet size, keep gas flame stable (can increase pressure sensor) when manifold pressure changes; As detect exhaust outlet pressure and adjust the gas port size, increasing gas port negative pressure (wind-fall of outside is filled with, and can adopt the detection rotation speed of fan to realize) to occur at exhaust outlet, the wind of avoiding combustion gas not pour in down a chimney is gone out; As detect carbon monoxide, oxygen content and judge current whether sufficient combustion, gas port is adjusted.
The above is only preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (4)
1. the ignition method of a gas heater, comprise the following steps:
A, igniter are lighted a fire to the burner of gas heater;
B, whether success of flame detector test point firearm igniting after the time-delay of setting, if, finish this time igniting, otherwise judge whether ignition process institute arrives setting-up time service time, if finish this time igniting, and increase described slope be used to increasing described aperture, return to steps A and carry out igniting next time, otherwise carry out next step;
C, controller increase the aperture for the proportioning valve of the gas inlet amount of controlling the burner that feeds to gas heater, return to steps A.
2. igniting device of gas water heater comprises:
Igniter (2) is connected with controller (1) and is controlled by controller (1), is used for providing igniting to the burner of gas heater;
Whether flame detector (3) is connected with controller (1), successful for detection of igniting;
Proportioning valve (4) is connected with controller (1), is used for controlling the gas inlet amount of the burner that feeds to gas heater;
Controller (1), after the time-delay of be used for setting according to the igniting of flame detector (3) test point firearm (2) aperture of successful Signal Regulation ratio valve (4) whether, comprise and lighting a fire when unsuccessful when flame detector (3) test point firearm (2), control the aperture that increases described proportioning valve (4), and control point firearm (2) continues igniting, until judgement ignition process institute arrives setting-up time service time, unsuccessfully if still light a fire increase described slope be used to increasing described aperture, carry out igniting next time.
3. igniting device of gas water heater according to claim 2, is characterized in that, also comprises flow sensor (5), is used for providing to controller (1) signal of the water feeding of heater amount of its detection.
4. according to claim 2 or 3 described igniting device of gas water heaters, is characterized in that, also comprises receiving the blower fan (6) that controller (1) is controlled.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200810133399 CN101650076B (en) | 2008-08-13 | 2008-08-13 | Ignition method and device for gas water heater |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200810133399 CN101650076B (en) | 2008-08-13 | 2008-08-13 | Ignition method and device for gas water heater |
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| CN101650076A CN101650076A (en) | 2010-02-17 |
| CN101650076B true CN101650076B (en) | 2013-05-08 |
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| CN 200810133399 Active CN101650076B (en) | 2008-08-13 | 2008-08-13 | Ignition method and device for gas water heater |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104729101B (en) * | 2015-01-26 | 2017-06-30 | 艾欧史密斯(中国)热水器有限公司 | Gas heater or wall-hung boiler combustion control system and its control method |
| CN106152526A (en) * | 2015-03-30 | 2016-11-23 | 银川艾尼工业科技开发有限公司 | A kind of wall-hung boiler exhaust outlet stage sampling robot control system(RCS) |
| CN106015074A (en) * | 2016-06-29 | 2016-10-12 | 佛山市顺德区奇林电气有限公司 | Method and device for controlling start-up power of draught fan |
| CN106766213B (en) * | 2016-11-01 | 2020-02-11 | 珠海格力电器股份有限公司 | Ignition control method and device for gas wall-mounted boiler and gas wall-mounted boiler |
| TWI644086B (en) * | 2017-12-04 | 2018-12-11 | 保音股份有限公司 | Gas pressure detection method and system thereof |
| CN109916089A (en) * | 2017-12-13 | 2019-06-21 | 保音股份有限公司 | Gas pressure detection method and system |
| CN110966767A (en) * | 2018-09-30 | 2020-04-07 | 青岛经济技术开发区海尔热水器有限公司 | Control method of supercharged gas water heater and gas water heater |
| CN110398071B (en) * | 2019-08-06 | 2021-09-14 | 广东万家乐燃气具有限公司 | Air pressure compensation control method and gas water heater |
| CN110940097B (en) * | 2019-12-16 | 2021-10-12 | 华帝股份有限公司 | Control method for self-adaptive starting ignition of gas water heater |
| CN112833555B (en) * | 2020-06-15 | 2022-08-16 | 青岛经济技术开发区海尔热水器有限公司 | Gas water heater and control method thereof |
| CN115264960A (en) * | 2022-07-19 | 2022-11-01 | 珠海格力电器股份有限公司 | Ignition control method and device for gas water heater, electronic equipment and gas water heater |
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|---|---|---|---|---|
| WO1989004442A1 (en) * | 1987-11-02 | 1989-05-18 | South Australian Gas Company | Instantaneous hot water system |
| JP2000329340A (en) * | 1999-05-21 | 2000-11-30 | Matsushita Electric Ind Co Ltd | Control device |
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