CN1892143B - Anti-explosion gas water heater - Google Patents
Anti-explosion gas water heater Download PDFInfo
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- CN1892143B CN1892143B CN200510082688A CN200510082688A CN1892143B CN 1892143 B CN1892143 B CN 1892143B CN 200510082688 A CN200510082688 A CN 200510082688A CN 200510082688 A CN200510082688 A CN 200510082688A CN 1892143 B CN1892143 B CN 1892143B
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- magnetic valve
- chip microcomputer
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- burst
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 238000004880 explosion Methods 0.000 title abstract description 5
- 239000007789 gas Substances 0.000 claims abstract description 54
- 239000002737 fuel gas Substances 0.000 claims abstract description 17
- 230000011218 segmentation Effects 0.000 claims description 26
- 239000000567 combustion gas Substances 0.000 claims description 23
- 230000001105 regulatory effect Effects 0.000 claims description 18
- 230000001276 controlling effect Effects 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 5
- 239000012141 concentrate Substances 0.000 claims description 4
- 238000005474 detonation Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000004200 deflagration Methods 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000005619 thermoelectricity Effects 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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- Regulation And Control Of Combustion (AREA)
Abstract
The invention discloses an anti-explosion gas water heater, which comprises a main controller, an igniter, a fan and a main electromagnetic valve, wherein the main electromagnetic valve is positioned on a gas passage to control the on-off of the gas passage; the main electromagnetic valve is connected with the main controller and acts according to the command of the main controller; this water heater still includes: the proportional control electromagnetic valve is positioned on the gas passage and connected with the main controller, and is used for adjusting the opening of the valve port according to the instruction of the main controller so as to control the air quantity on the gas passage, and the proportional control electromagnetic valve has the preset opening of the valve port during ignition; a gas distributor having at least two gas inlet zones; and the at least two-section electromagnetic valve is arranged corresponding to the at least two air inlet areas of the fuel gas distributor, is connected with the main controller, and acts according to the instruction of the main controller to control the air inlet position of the fuel gas.
Description
Technical field
The present invention relates to the gas heater field, particularly relate to a kind of anti-burst-burning gas water-heater.
Background technology
For consumers, the security performance of gas heater is a very important measuring quality index.But the security performance of gas heater on the market is generally not high at present, has more potential safety hazard.It is more to influence gas heater factor safe in utilization, and wherein more common a kind of phenomenon detonation occurs for start igniting, when serious even blast, thereby causes the accident generations, brings loss to people's life and property.
The reason that causes detonation is many-sided, such as remaining waste gas before the gas heater start; Start misfires the frequent unlatching in back, and the short time is gathered a large amount of combustion gas or the like.
For avoiding taking place detonation, some technical schemes have appearred in the prior art.For example, cleaning or dual ignition function before and after water heater in the market is provided with mostly.
Clean before and after so-called and be meant igniting blower fan running earlier in the past, discharge remaining combustion gas, stopping working reruns a period of time with rear fan, and combustion gas is thoroughly discharged.Most of producers are made as 2-3 second with the preceding cleaning time, and 10-20 second is cleaned in the back, but its actual effect is unsatisfactory.This is because there is a defective in gas heater itself design in the market, magnetic valve is opened fully during igniting, and the gas quantity that moment enters water heater is bigger, and water heater is promptly lighted a fire with the full load of normal operating conditions, because the air inflow during igniting is bigger, just be easier to take place detonation.Particularly under the lower situation of environment temperature in winter, easier generation detonation during the water heater cold start.
See also the Chinese utility model patent No. 01256061 (Fig. 1 reference) of bulletin on August 7th, 2002, disclosed a kind of anti-explosion gas water heater controller for gas.This anti-explosion gas water heater has small fire burner and main burner (figure does not show), corresponds respectively to little thermoelectricity magnet valve 12 and main thermoelectricity magnet valve 10; During start, 3 igniting of intelligent controller 13 instruction ignitors, little magnetic valve 12 is opened and is made the small fire burner igniting; After receiving the small fire burner normal combustion feedback signal that is transmitted by signal feedback device 1, instruction main solenoid valve 10 is opened and is made the main burner igniting.
Because the gas heater of the prior art is lighted little fire earlier, refire main fire, therefore can overcome the deflagration phenomenon that causes because of firing delay.But there are some defectives in the prior art: the on off state that need control at least two magnetic valves during owing to igniting is controlled the size of combustion gas air inflow, and its operation is comparatively loaded down with trivial details; Therefore magnetic valve is complete opening when water heater working, can't be according to actual needs or the presetting condition size of regulating aflame combustion gas; At different valve opening solenoid off status, intelligent controller can not be regulated gas quantity automatically on the intake channel of combustion gas size; Because the unlatching of igniting and magnetic valve is carried out simultaneously, still there is the possibility that produces detonation.
Summary of the invention
The technical problem that the present invention solves is to provide a kind of anti-burst-burning gas water-heater, the size of combustion gas air inflow in the time of can controlling igniting comparatively simply.
For this reason, the technical scheme of technical solution problem of the present invention is: a kind of anti-burst-burning gas water-heater is provided, comprise master controller, igniter, blower fan and main solenoid valve, described master controller is a single-chip microcomputer, and this main solenoid valve is positioned at the switch of fuel gas path with the control fuel gas path; This main solenoid valve connects single-chip microcomputer, moves according to the instruction of single-chip microcomputer; This water heater also comprises:
Ratio is regulated magnetic valve, is positioned at aforementioned fuel gas path and connects single-chip microcomputer, regulates valve port opening to control the size of air inflow on the fuel gas path according to single-chip microcomputer to the variation of its input current, and it has predetermined valve port opening when igniting;
Gas distributor has at least two air inlet zones; The air admission hole in described air inlet zone is regulated its on off state by the segmentation magnetic valve of correspondence respectively;
At least two-section magnetic valve, at least two of this gas distributor air inlets zone is provided with and connects single-chip microcomputer relatively, moves air inlet position with the control combustion gas according to the instruction of single-chip microcomputer.
Preferably, this single-chip microcomputer automatically switches to predetermined state when igniting, and the switch of controlling this segmentation magnetic valve is to concentrate combustion gas.
Preferably, this single-chip microcomputer comes control ratio to regulate magnetic valve and segmentation magnetic valve according to setting operating mode after lighting a fire successfully.
Preferably, this single-chip microcomputer prolongation scheduled time after igniter starts is opened main solenoid valve.
Preferably, this blower fan is carried out the preceding cleaning of the scheduled time before igniter starts.
Preferably, at least two of this gas distributor air inlet zones are provided with some air admission holes respectively.
Preferably, this gas distributor has two air inlet zones, is respectively equipped with four and seven air admission holes; The number of this segmentation magnetic valve is two.
Preferably, this single-chip microcomputer connects main solenoid valve by driving triode, ratio is regulated magnetic valve and segmentation magnetic valve.
With respect to prior art, the invention has the beneficial effects as follows: because gas heater of the present invention has anti-detonation design, the ratio that promptly is provided with on fuel gas path is regulated magnetic valve, its valve port opening of main controller controls is in predetermined state when igniting, thereby under the successful prerequisite that guarantees to light a fire, the water heater start is lighted a fire with less air inflow (startup thermic load), effectively avoided the generation of deflagration phenomenon; Owing to only need control ratio to regulate magnetic valve, the size of combustion gas air inflow in the time of therefore can controlling igniting comparatively simply.
In preferred version of the present invention, master controller automatically switches to predetermined state when igniting, and the switch of controlling this segmentation magnetic valve therefore can be further to guarantee making combustion gas concentrated relatively to concentrate combustion gas under the less situation of air inflow.
Preferably, the invention provides a kind of water heater of lighting a fire with the setting operating mode by the combination on structure and the software.
Description of drawings
Fig. 1 is the electric system figure of a kind of anti-explosion gas water heater controller for gas of prior art;
Fig. 2 is the theory diagram of anti-burst-burning gas water-heater of the present invention;
Fig. 3 is the structural representation of an embodiment of water heater of the present invention;
Fig. 4 is the circuit diagram of an embodiment of water heater of the present invention;
Fig. 5 is the workflow diagram of an embodiment of water heater of the present invention.
The specific embodiment
Seeing also Fig. 2, is the theory diagram of anti-burst-burning gas water-heater of the present invention.Water heater comprises master controller 110, main solenoid valve 120, ratio adjusting magnetic valve 130, plurality of segments magnetic valve 140 and has the gas distributor 150 of some air admission holes, the igniter 160 of cooperation igniting pin.
Wherein, this master controller 110 is electrically connected main solenoid valve 120, ratio is regulated magnetic valve 130 and plurality of segments magnetic valve 140, and controls and coordinate the on off state of described magnetic valve.
Ratio is regulated magnetic valve 130 and is installed on the fuel gas path, and its valve port opening degree changes with the variation of master controller 110 to its input current value, can adjust the size of air inflow.Specifically can be: the input current that ratio is regulated magnetic valve 130 becomes big, and it is big that the valve port opening degree becomes, and the air inlet quantitative change is big; Otherwise air inflow reduces.
Gas distributor 150 is positioned at combustion chamber (figure does not show), and the some air admission holes 151 on it are regulated its on off state by the segmentation magnetic valve 140 of correspondence respectively, thereby the combustion gas of fuel gas path is carried out regional segmentation by gas distributor 150.
Water heater of the present invention in the time need opening the valve point fire at every turn, master controller 110 is exported to ratio and is regulated magnetic valve 130 less current, i.e. assurance ratio is regulated magnetic valve 130 and is had only certain aperture, all do not open, thereby guarantee to have only a small amount of enough combustion gas to be used for igniting before the igniting, and can not cause the moment of combustion gas to pile up.
In addition, behind the gas quantity when having reduced igniting, if still adopt the igniting of ventilating simultaneously of traditional whole air admission holes 151, then can be too many because of air admission hole 151 quantity, cause by the gas quantity of each air admission hole 151 lessly, cause the failure that misfires or ignite; Therefore the present invention regulates segmentation magnetic valve 140 when water heater is lighted a fire, and makes the substep of 150 pairs of combustion gas of gas distributor regulate, only at some specific air inlet porose area igniting.
Seeing also Fig. 3 and Fig. 4, is respectively structural representation and the circuit diagram of an embodiment of water heater of the present invention.
Anti-burst-burning gas water-heater comprises that master controller 110, main solenoid valve 120, ratio regulate magnetic valve 130, two segmentation magnetic valves 141 and 142, gas distributor 150, igniter 160.
Master controller 110 adopts single-chip microcomputers, connects main solenoid valve 120, ratio and regulates magnetic valve 130, two segmentation magnetic valves 141 and 142, adopts to drive triode (indicating) and instruct to the magnetic valve transmission and control it and move.
The gas distributor 150 of sectional air inlet has a plurality of air admission holes 151, and segmentation magnetic valve 141 and 142 is installed on it.
In the water heater of present embodiment, gas distributor 110 has 11 air admission holes.Two segmentation magnetic valves 141 installing and 142 are divided into three sections with air admission hole, and wherein 4 air admission holes, 7 air admission holes, 11 air admission holes respectively are one section.Segmentation magnetic valve 141 is connected with 4 air admission holes, and segmentation magnetic valve 142 is connected with 7 air admission holes, and the switch of each section is controlled by segmentation magnetic valve 141 and/or 142.
When only having segmentation magnetic valve 141 to open, 4 air admission hole work of primary importance (air inlet porose area) 152, this moment, air inflow was less, was minimum fire, and the live load of water heater is less; When only having segmentation magnetic valve 142 to open, 7 air admission hole work of the second place (air inlet porose area) 153 are middle fire burns; When segmentation magnetic valve 141 and 142 was all opened, 11 air admission holes were worked simultaneously, and this moment, water heater was full-load operation, maximum fire burns.
In the present embodiment, when master controller setting water heater began to light a fire, rationally control ratio was regulated the aperture of magnetic valve 130, and enough combustion gas are used for igniting thereby have only on a small quantity before guaranteeing to light a fire, and can not cause the moment of combustion gas to pile up.Simultaneously only open segmentation magnetic valve 141, make combustion gas concentrate on 4 air admission hole dispensings, thereby guaranteed relatively large throughput, be easy to be fired by the high-tension ignition pin mark of top.
Seeing also Fig. 5, is the workflow diagram of an embodiment of water heater of the present invention
The water heater of present embodiment is set the operating mode igniting, is set at little fire or big fire in the engineering of no matter working, and its workflow comprises:
Step S510, the water heater energising.
If step S520, the water heater fault self-checking of starting shooting normal, then enters step S530; If fault is then carried out troubleshooting, for example shutdown.
Step S530, the water heater water flowing.
Step S540, fan starting, the cleaning scheduled time before carrying out, for example 2 seconds.
Step S550, main solenoid valve is opened in the igniter igniting behind the delay scheduled time, and the described scheduled time can be 0.5 second.
Step S560, small current value of master controller output is regulated magnetic valve to ratio, makes ratio adjusting magnetic valve valve port opening less, realizes less air inflow, guarantees that water heater is with a less thermic load starting ignition.
Step S570, and simultaneously master controller automatically switches to little fiery state, opens main solenoid valve and little thermoelectricity magnet valve earlier, only 4 air admission hole work of primary importance make combustion gas concentrated relatively, guarantee that water heater can light.
Step S580, in case after lighting, open other segmentation magnetic valve again, the corresponding adjustment simultaneously of ratio adjusting valve valve port enters into the normal combustion operating mode.
In sum, because gas heater of the present invention has anti-detonation design, the ratio that promptly is provided with on fuel gas path is regulated magnetic valve, its valve port opening of main controller controls is in predetermined state when igniting, thereby under the successful prerequisite that guarantees to light a fire, the water heater start is lighted a fire with less air inflow (startup thermic load), effectively avoided the generation of deflagration phenomenon; Owing to only need control ratio to regulate magnetic valve, the size of combustion gas air inflow in the time of therefore can controlling igniting comparatively simply.Experimental results show that when the startup thermic load of water heater is reduced to water heater full-power about 50%, can eliminate deflagration phenomenon substantially.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (7)
1. an anti-burst-burning gas water-heater comprises master controller, igniter, blower fan and main solenoid valve, and this main solenoid valve is positioned at the switch of fuel gas path with the control fuel gas path; It is characterized in that described master controller is a single-chip microcomputer, this main solenoid valve connects single-chip microcomputer, moves according to the instruction of single-chip microcomputer; This water heater also comprises:
Ratio is regulated magnetic valve, is positioned at aforementioned fuel gas path and connects single-chip microcomputer, regulates valve port opening to control the size of air inflow on the fuel gas path according to single-chip microcomputer to the variation of its input current value, and it has predetermined valve port opening when igniting;
Gas distributor has at least two air inlet zones, and the air admission hole in described air inlet zone is regulated its on off state by the segmentation magnetic valve of correspondence respectively;
At least two-section magnetic valve, at least two of this gas distributor air inlets zone is provided with and connects single-chip microcomputer relatively, moves air inlet position with the control combustion gas according to the instruction of single-chip microcomputer; This single-chip microcomputer automatically switches to predetermined state when igniting, the switch of controlling this segmentation magnetic valve is to concentrate combustion gas.
2. anti-burst-burning gas water-heater according to claim 1 is characterized in that, this single-chip microcomputer comes control ratio to regulate magnetic valve and segmentation magnetic valve according to setting operating mode after lighting a fire successfully.
3. anti-burst-burning gas water-heater according to claim 2 is characterized in that, this single-chip microcomputer prolongation scheduled time after igniter starts is opened main solenoid valve.
4. anti-burst-burning gas water-heater according to claim 3 is characterized in that, this blower fan is carried out the preceding cleaning of the scheduled time before igniter starts.
5. according to each described anti-burst-burning gas water-heater of claim 1 to 4, it is characterized in that at least two air inlet zones of this gas distributor are provided with some air admission holes respectively.
6. anti-burst-burning gas water-heater according to claim 5 is characterized in that, this gas distributor has two air inlet zones, is respectively equipped with four and seven air admission holes; The number of this segmentation magnetic valve is two.
7. anti-burst-burning gas water-heater according to claim 6 is characterized in that, this single-chip microcomputer connects main solenoid valve by driving triode, ratio is regulated magnetic valve and segmentation magnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510082688A CN1892143B (en) | 2005-07-08 | 2005-07-08 | Anti-explosion gas water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510082688A CN1892143B (en) | 2005-07-08 | 2005-07-08 | Anti-explosion gas water heater |
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| Publication Number | Publication Date |
|---|---|
| CN1892143A CN1892143A (en) | 2007-01-10 |
| CN1892143B true CN1892143B (en) | 2010-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200510082688A Active CN1892143B (en) | 2005-07-08 | 2005-07-08 | Anti-explosion gas water heater |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101762017A (en) * | 2008-11-10 | 2010-06-30 | 樱花卫厨（中国）股份有限公司 | Fire lighting and shifting control device of gas water heater |
| CN105333463B (en) * | 2014-08-11 | 2018-10-26 | 关隆股份有限公司 | The method for controlling combustion of gas |
| CN105605796B (en) * | 2016-03-30 | 2018-10-09 | 成都前锋电子有限责任公司 | A kind of gas heater and its control method of combustion gas self-adapting type |
| CN105674578B (en) * | 2016-03-30 | 2019-05-07 | 成都前锋电子有限责任公司 | A kind of gas heater and its control method of a pressure self-adjusting section |
| CN106931649B (en) * | 2017-04-07 | 2019-05-31 | 珠海格力电器股份有限公司 | Automatic ignition control method and device for gas |
| CN111412538A (en) * | 2019-01-08 | 2020-07-14 | 宁波方太厨具有限公司 | Double-channel distributor and double-system dual-purpose furnace comprising same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2442186Y (en) * | 2000-01-03 | 2001-08-08 | 广州迪森热能技术股份有限公司 | Household boiler |
| CN2504559Y (en) * | 2001-09-30 | 2002-08-07 | 潘显章 | Gas controller of anti-explosion gas water heater |
| CN1548804A (en) * | 2003-05-15 | 2004-11-24 | 株式会社庆东Boiler | Air ratio control water heater |
| CN2702236Y (en) * | 2004-06-03 | 2005-05-25 | 海尔集团公司 | Firepower adjustable gas water heater |
| CN2884038Y (en) * | 2005-07-08 | 2007-03-28 | 海尔集团公司 | Anti-explosion gas water heater |
-
2005
- 2005-07-08 CN CN200510082688A patent/CN1892143B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2442186Y (en) * | 2000-01-03 | 2001-08-08 | 广州迪森热能技术股份有限公司 | Household boiler |
| CN2504559Y (en) * | 2001-09-30 | 2002-08-07 | 潘显章 | Gas controller of anti-explosion gas water heater |
| CN1548804A (en) * | 2003-05-15 | 2004-11-24 | 株式会社庆东Boiler | Air ratio control water heater |
| CN2702236Y (en) * | 2004-06-03 | 2005-05-25 | 海尔集团公司 | Firepower adjustable gas water heater |
| CN2884038Y (en) * | 2005-07-08 | 2007-03-28 | 海尔集团公司 | Anti-explosion gas water heater |
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| CN1892143A (en) | 2007-01-10 |
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