CN105650693A - Self-adaptive gas stove and control method thereof - Google Patents
Self-adaptive gas stove and control method thereof Download PDFInfo
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- CN105650693A CN105650693A CN201610190349.5A CN201610190349A CN105650693A CN 105650693 A CN105650693 A CN 105650693A CN 201610190349 A CN201610190349 A CN 201610190349A CN 105650693 A CN105650693 A CN 105650693A
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- sweet natural
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/12—Arrangement or mounting of control or safety devices
- F24C3/126—Arrangement or mounting of control or safety devices on ranges
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/08—Arrangement or mounting of burners
- F24C3/085—Arrangement or mounting of burners on ranges
Abstract
A self-adaptive gas stove comprises a burner 1, a control circuit module 5, and a gas proportion valve 3. The burner 1 is provided with fire holes 2, the gas proportion valve 3 is electrically connected with the control circuit module. The self-adaptive gas stove comprises a liquefied gas ionic current feedback needle 11, a natural gas ionic current feedback needle 12, and a flame ionic current detecting unit 51, wherein the liquefied gas ionic current feedback 11 and the natural gas ionic current feedback needle 12 are mounted on the burner and their public connecting ends are connected with the control circuit module 5 electrically through the flame ionic current detecting unit 51. The control circuit module 5 adjusts the opening of the gas proportion valve 3 according to the sum of the ionic current detected by the liquefied gas ionic current feedback needle 11 and the natural gas ionic current feedback needle 12. A control method of the self-adaptive gas stove includes presetting output of the natural gas and the liquefied gas corresponding to the gas proportion valve 3, so that air-fuel ratio is well matched, burning load meets users' requirements, and life quality of the users is improved.
Description
Technical field
The present invention relates to a kind of gas-cooker and the control method thereof with self-adaptation function.
Background technology
In existing household gas utensils, natural gas range and liquefied gas cooker can not be general, can not automatically switch use therebetween, when switching gas source, it is necessary to could use after manually changing nozzle, and it is big and complicated to change nozzle operation amount. For overcoming above-mentioned defect, self-adaptation gas-cooker and control method thereof are improved.
Summary of the invention
Technical problem to be solved by this invention to be provided a kind of gas-cooker and the control method thereof with self-adaptation function, and it has the functional characteristics of conversion automatically between Sweet natural gas and liquefied gas.
The present invention solves the technical scheme of its technical problem employing: a kind of self-adaptation gas-cooker, comprise burner, pilot circuit module, gas ratio valve, burner is provided with fire output hole, gas ratio valve is electrically connected with pilot circuit module, also comprise liquefied gas ion(ic)current feedback pin, Sweet natural gas ion(ic)current feedback pin, flame ion current detecting unit, liquefied gas ion(ic)current feedback pin, Sweet natural gas ion(ic)current feedback pin installs on the burner and its public coupling end is electrically connected with pilot circuit module by flame ion current detecting unit, pilot circuit module feeds back pin according to liquefied gas ion(ic)current, the summation regulating gas proportional valve aperture of the ionic current values that Sweet natural gas ion(ic)current feedback pin detects.
Described flame ion current detecting unit comprises flame ion current input circuit, ac high-voltage produces circuit, exchange dividing potential drop circuit, DC voltage divider circuit, filtering circuit, flame ion current input circuit one end and liquefied gas ion(ic)current feedback pin, Sweet natural gas ion(ic)current feedback pin electrically connects, the flame ion current input circuit the other end, ac high-voltage produces circuit and electrically connects with the input terminus exchanging dividing potential drop circuit respectively, the output terminal of exchange dividing potential drop circuit is electrically connected by the input terminus of DC voltage divider circuit and filtering circuit, output terminal and the pilot circuit module of filtering circuit electrically connect.
Described pilot circuit module comprises MCU control unit, gas ratio valve regulation output circuit, and gas ratio valve regulation output circuit electrically connects with MCU control unit, gas ratio valve respectively.
Described burner is provided with feedback pin open holes, and liquefied gas ion(ic)current feedback pin, Sweet natural gas ion(ic)current feedback pin are installed on the burner by feedback pin open holes respectively.
Described fire output hole is interior ring fire fire output hole, the distance that the distance between Sweet natural gas ion(ic)current feedback pin and fire output hole is less than between liquefied gas ion(ic)current feedback pin and fire output hole.
Distance between described Sweet natural gas ion(ic)current feedback pin and fire output hole feeds back the little 2-4mm of distance between pin and fire output hole than liquefied gas ion(ic)current.
Distance between described Sweet natural gas ion(ic)current feedback pin and fire output hole is 1-5mm, and the distance between corresponding liquefied gas ion(ic)current feedback pin and fire output hole is 3-9mm.
The aperture of described gas ratio valve is adjustable as default Sweet natural gas aperture or default liquefied gas aperture.
A control method for self-adaptation gas-cooker, comprises the steps:
1) Sweet natural gas aperture corresponding to gas ratio valve, liquefied gas aperture is preset, ionic current values summation scope D3 when ionic current values summation scope D1, Natural Gas Conversion are ionic current values summation scope D2 during liquefied gas, liquefied gas trouble-free burning when presetting Sweet natural gas trouble-free burning, ionic current values summation scope D4 when liquefied gas is converted to Sweet natural gas;
2) starting, the aperture of gas ratio valve is last use aperture or acquiescence Sweet natural gas aperture, then lights a fire, enters 3);
3) by whether liquefied gas ion(ic)current feedback pin, the feedback pin detection of Sweet natural gas ion(ic)current have flame, 4 are then entered);
4) then pilot circuit module switches the aperture of gas ratio valve if not, then reenters 3), if then liquefied gas ion(ic)current feedback pin, Sweet natural gas ion(ic)current feed back the real-time flame detection ion current signal of pin, then enter 5);
5) when the ionic flame current value summation that liquefied gas ion(ic)current feeds back pin, Sweet natural gas ion(ic)current feedback pin detects is within the scope of D1 or D3, the not aperture of regulating gas proportional valve, then reenters 4), until shutdown; When the ionic flame current value summation that liquefied gas ion(ic)current feeds back pin, Sweet natural gas ion(ic)current feedback pin detects is within the scope of D2, the aperture of pilot circuit module regulating gas proportional valve, until ionic current values summation is within the scope of D3, then reenter 4), until shutdown; When the ionic flame current value summation that liquefied gas ion(ic)current feeds back pin, Sweet natural gas ion(ic)current feedback pin detects is within the scope of D4, the aperture of pilot circuit module regulating gas proportional valve, until ionic current values summation is within the scope of D1, then reenter 4), until shutdown.
The aperture step switching gas ratio valve in described step 4) comprises:
If the aperture of gas ratio valve is Sweet natural gas aperture before igniting, then switch to liquefied gas aperture;
If the aperture of gas ratio valve is liquefied gas aperture before igniting, then switch to Sweet natural gas aperture.
The present invention compares the useful effect produced with background technology: adopts on prior art basis due to the gas-cooker of the present invention and comprises liquefied gas ion(ic)current feedback pin, Sweet natural gas ion(ic)current feedback pin, flame ion current detecting unit, liquefied gas ion(ic)current feedback pin, the structure that Sweet natural gas ion(ic)current feedback pin is installed on the burner and its public coupling end is electrically connected with pilot circuit module by flame ion current detecting unit, its control method comprises Sweet natural gas aperture corresponding to default gas ratio valve, the step of liquefied gas aperture etc., if liquefied gas ion(ic)current feedback pin, when the value of the ion(ic)current summation that Sweet natural gas ion(ic)current feedback pin detects is not in the normal range that combustion of natural gas is preset, then illustrate that gas source is converted into liquefied gas, and then the aperture of pilot circuit module regulating gas proportional valve, make in the liquefied gas normal range that the value of ion(ic)current summation reaches default, when being converted into Sweet natural gas by liquefied gas, method is identical. therefore when gas source is mutually changed between Sweet natural gas and liquefied gas, the aperture of the automatic regulating gas proportional valve of gas stove energy, makes air-fuel ratio coordinate very well, and burning load reaches customer need, effectively improve the quality of the life of user.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the enlarged view of burner 1 in Fig. 1;
The circuit that Fig. 3 is Fig. 1 connects block diagram;
Fig. 4 is the connection block diagram of flame ion current detecting unit 51 in Fig. 1;
Fig. 5 is a kind of circuit connection diagram of Fig. 4;
Fig. 6 is the control method flow diagram of the present invention.
Embodiment
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, the present embodiment comprises burner 1, pilot circuit module 5, gas ratio valve 3, burner 1 is provided with fire output hole 2, gas ratio valve 3 is electrically connected with pilot circuit module 5, also comprise liquefied gas ion(ic)current feedback pin 11, Sweet natural gas ion(ic)current feedback pin 12, flame ion current detecting unit 51, liquefied gas ion(ic)current feedback pin 11, Sweet natural gas ion(ic)current feedback pin 12 installs on the burner and its public coupling end is electrically connected with pilot circuit module 5 by flame ion current detecting unit 51, pilot circuit module 5 feeds back pin 11 according to liquefied gas ion(ic)current, summation regulating gas proportional valve 3 aperture of the ionic current values that Sweet natural gas ion(ic)current feedback pin 12 detects.
Fuel gas buring produces heat energy, the electronics in neutral gas atoms is made to obtain enough energy, it is thus possible to overcome nucleus its gravitation is become unbound electron, simultaneously neutral atom is owing to losing portions of electronics thus positively charged, and the process that this kind makes neutral molecule or atom release electronics form positive ion is called ionization of gas. Now, if a DC electric field that adds between flame and burner, charged particle being moved along direction of an electric field, positive ion moves to cathode direction, and electronics and the motion of negative ion anode direction, will form ion(ic)current.
Owing under different state of combustions, the temperature of flame is not identical, flame temperature is more high, in unit time inherent electric field, the charged particle of movement is more many, also it is exactly that charged ion concentration is more big, electric current is more obvious, and flame temperature is more low, and in unit time inherent electric field, the charged particle of movement is more few, also being exactly that charged ion concentration is more little, electric current is more weak.
When air-fuel ratio is excessive, unnecessary air can take away heat, can dilute charged ion concentration; Air-fuel ratio is crossed hour, burns insufficient, and combustion processes also fails to produce abundant charged particle.
Gas component in the present invention refers to composition and the content of combustion gas, and combustion gas group part changes, it is also possible to think the change in gas source, and namely gas source is changed to liquefied gas by Sweet natural gas, or is changed to Sweet natural gas by liquefied gas. For self-adaptation gas-cooker, when gas source changes, if gas ratio valve 3 can not adjust accordingly, then combustion gas just can not realize effectively pre-mixed with air, burning will be produced disadvantageous impact.
In order to judge whether gas source changes more accurately in the present invention, gas-cooker planner also by gas source by Natural Gas Conversion be ionic current values scope during liquefied gas, liquefied gas be converted to Sweet natural gas time ionic current values scope write as automatically controlled program and be input in pilot circuit module 5. Namely the present embodiment has been preset in pilot circuit module 5 four ion(ic)current value ranges, ionic current values scope D3 when ionic current values scope D1, Natural Gas Conversion are ionic current values scope D2 during liquefied gas, liquefied gas trouble-free burning when being respectively Sweet natural gas trouble-free burning, ionic current values scope D4 when liquefied gas is converted to Sweet natural gas, above-mentioned four default ion(ic)current value ranges refer to the summation of the ionic current values that liquefied gas ion(ic)current feedback pin 11, Sweet natural gas ion(ic)current feedback pin 12 detect.
Further, referring to accompanying drawing 4, accompanying drawing 5, described flame ion current detecting unit 51 comprises flame ion current input circuit 511, ac high-voltage produces circuit 515, exchange dividing potential drop circuit 512, DC voltage divider circuit 513, filtering circuit 514, flame ion current input circuit 511 one end and liquefied gas ion(ic)current feedback pin 11, Sweet natural gas ion(ic)current feedback pin 12 electrically connects, flame ion current input circuit 511 the other end, exchange dividing potential drop circuit 512 electrically connects with the input terminus exchanging dividing potential drop circuit 512 respectively, the output terminal of exchange dividing potential drop circuit 512 is electrically connected by the input terminus of DC voltage divider circuit 513 with filtering circuit 514, output terminal and the pilot circuit module 5 of filtering circuit 514 electrically connect.
Referring to accompanying drawing 3, described pilot circuit module 5 comprises MCU control unit, gas ratio valve regulation output circuit, and gas ratio valve regulation output circuit electrically connects with MCU control unit, gas ratio valve 3 respectively. When needs regulate flame ion electric current, MCU control unit by gas ratio valve regulation output circuit by electrical signal to gas ratio valve 3, the aperture of adjustment gas ratio valve 3.
Namely pilot circuit module 5 changes air-fuel ratio by the speed of opening of regulating gas proportional valve 3, thus the summation making liquefied gas ion(ic)current feedback pin 11, Sweet natural gas ion(ic)current feed back the flame ion current value that pin 12 detects maintains within the scope of D1, D3.
Described burner 1 header board is provided with feedback pin open holes, and liquefied gas ion(ic)current feedback pin 11, Sweet natural gas ion(ic)current feedback pin 12 are arranged on burner 1 by feedback pin open holes respectively. The ignition electrode of gas-cooker is also set on burner 1 header board, and three kinds of pins are all arranged on burner 1 header board, neatly unify, and is convenient to install.
The height at the internal flame top when height of Sweet natural gas ion(ic)current feedback pin 12 depends on combustion of natural gas, its current value is the strongest, and the value of feedback drawn is stablized; When the height of liquefied gas ion(ic)current feedback pin 11 depends on that Sweet natural gas switches to liquefied gas instantaneously, the height at the internal flame top of flame during flame height sudden change afterfire. Relative to liquefied gas burning, the calorific value produced in unit surface during combustion of natural gas is lower, and flame height is also lower.
Described fire output hole 2 is interior ring fire fire output hole, and in order to the accuracy detected, the distance between described Sweet natural gas ion(ic)current feedback pin 12 and fire output hole 2 feeds back the little 2-4mm of distance between pin 11 and fire output hole 2 than liquefied gas ion(ic)current. Specifically, the distance between described Sweet natural gas ion(ic)current feedback pin 12 and fire output hole 2 is 1-5mm, and the distance between corresponding liquefied gas ion(ic)current feedback pin 11 and fire output hole 2 is 3-9mm. As the embodiment of optimum, the distance between described Sweet natural gas ion(ic)current feedback pin 12 and fire output hole 2 is 3mm, and the distance between corresponding liquefied gas ion(ic)current feedback pin 11 and fire output hole 2 is 7mm.
Preferably, the aperture of described gas ratio valve 3 is adjustable as default Sweet natural gas aperture or default liquefied gas aperture, here default Sweet natural gas aperture refer to pre-set when gas source be Sweet natural gas, during gas-cooker trouble-free burning, the aperture of gas ratio valve 3 correspondence, preset liquefied gas aperture refer to pre-set when gas source be liquefied gas, during gas-cooker trouble-free burning, the aperture of gas ratio valve 3 correspondence.
A control method for self-adaptation gas-cooker, comprises the steps:
1) the Sweet natural gas aperture of gas ratio valve 3 correspondence, liquefied gas aperture is preset, ionic current values summation scope D3 when ionic current values summation scope D1, Natural Gas Conversion are ionic current values summation scope D2 during liquefied gas, liquefied gas trouble-free burning when presetting Sweet natural gas trouble-free burning, ionic current values summation scope D4 when liquefied gas is converted to Sweet natural gas;
2) starting, the aperture of gas ratio valve 3 is last use aperture or acquiescence Sweet natural gas aperture, then lights a fire, enters 3);
3) by liquefied gas ion(ic)current feedback pin 11, Sweet natural gas ion(ic)current feedback pin 12 detect whether have flame, 4 are then entered);
4) then illustrate that the gas source connected now is not corresponding with the aperture of present gas ratio valve 3 if not, light a fire unsuccessful, now pilot circuit module 5 switches the aperture of gas ratio valve 3, then 3 are reentered), gas source after switching is corresponding with the aperture of gas ratio valve 3, light a fire successfully, if then illustrating that the gas source now connected is corresponding with the aperture of gas ratio valve 3, light a fire successfully, liquefied gas ion(ic)current feedback pin 11, Sweet natural gas ion(ic)current feedback pin 12 flame detection ion current signal in real time, then enter 5);
5) when the ionic flame current value summation that liquefied gas ion(ic)current feeds back pin 11, Sweet natural gas ion(ic)current feedback pin 12 detects is within the scope of D1 or D3, illustrate that gas source does not change, do not need the aperture of regulating gas proportional valve 3, then reenter 4), until shutdown; When the ionic flame current value summation that liquefied gas ion(ic)current feeds back pin 11, Sweet natural gas ion(ic)current feedback pin 12 detects is within the scope of D2, illustrate that gas source changes, the aperture of pilot circuit module 5 regulating gas proportional valve 3, until ionic current values summation is within the scope of D3, then 4 are reentered), until shutdown; When the ionic flame current value summation that liquefied gas ion(ic)current feeds back pin 11, Sweet natural gas ion(ic)current feedback pin 12 detects is within the scope of D4, also illustrate that gas source changes, the aperture of pilot circuit module 5 regulating gas proportional valve 3, until ionic current values summation is within the scope of D1, then 4 are reentered), until shutdown.
The aperture step switching gas ratio valve 3 in described step 4) specifically refers to the following two kinds situation:
If the aperture of gas ratio valve 3 is Sweet natural gas aperture before igniting, then switch to liquefied gas aperture; If the aperture of gas ratio valve 3 is liquefied gas aperture before igniting, then switch to Sweet natural gas aperture.
During work, what assume user last time is Sweet natural gas, then using the aperture of gas ratio valve when closing gas-cooker last time is the aperture of applicable combustion of natural gas, assume user this time be liquefied gas, light a fire when firm gas-cooker is just opened unsuccessful, pilot circuit module 5 perceives gas source and changes, the aperture of gas ratio valve 3 is switched to liquefied gas aperture by pilot circuit module 5, combustion gas is mated again with AIR Proportional, until lighting a fire successfully, the liquefied gas ion(ic)current feedback pin 11 that flame ion current detecting unit 51 detects, the summation of the ionic current values of Sweet natural gas ion(ic)current feedback pin 12 is within the scope of D3, realize trouble-free burning.
What assume user last time is liquefied gas, then used the aperture that the aperture of gas ratio valve when closing gas-cooker is the burning of applicable liquefied gas last time, assume user this time be Sweet natural gas, light a fire when firm gas-cooker is just opened unsuccessful, pilot circuit module 5 perceives gas source and changes, the aperture of gas ratio valve 3 is switched to Sweet natural gas aperture by pilot circuit module 5, combustion gas is mated again with AIR Proportional, until lighting a fire successfully, the liquefied gas ion(ic)current feedback pin 11 that flame ion current detecting unit 51 detects, the summation of the ionic current values of Sweet natural gas ion(ic)current feedback pin 12 is within the scope of D1, realize trouble-free burning.
In gas-cooker combustion processes, when gas source is Sweet natural gas, Sweet natural gas ion(ic)current feedback pin 12 detects flame ion electric current, and liquefied gas ion(ic)current feedback pin 11 does not detect ionic flame electric current, now the flame ion current value that Sweet natural gas ion(ic)current feedback pin 12 detects constantly is passed to pilot circuit module 5 by flame ion current detecting unit 51, the actual value detected and the D1 preset constantly are compared by pilot circuit module 5, if the actual value detected is in D1 scope combustion, then illustrate that combustion of natural gas is normal, do not need to regulate, when gas source is liquefied gas by Natural Gas Conversion, Sweet natural gas ion(ic)current feedback pin 12, liquefied gas ion(ic)current feedback pin 11 all detects flame ion electric current, if when the summation that flame ion current detecting unit 51 passes to the ionic current values of pilot circuit module 5 is in D2, pilot circuit module 5 perceives gas source and changes, pilot circuit module 5 outputs signal to gas ratio valve 3 and regulates, combustion gas is mated again with AIR Proportional, until the liquefied gas ion(ic)current feedback pin 11 that flame ion current detecting unit 51 detects, the summation of the ionic current values of Sweet natural gas ion(ic)current feedback pin 12 is within the scope of D3.
Same method, when gas source is liquefied gas, liquefied gas ion(ic)current feedback pin 11 detects flame ion electric current, simultaneously, the ionic flame electric current that natural gas ion(ic)current feedback pin 12 detects equally, now Sweet natural gas ion(ic)current feedback pin 12 and liquefied gas ion(ic)current feedback pin 11 are constantly detected that flame ion current value passes to pilot circuit module 5 by flame ion current detecting unit 51, the actual value detected and the D3 preset constantly are compared by pilot circuit module 5, if the actual value detected is in D3 scope combustion, then illustrate that combustion of natural gas is normal, do not need to regulate, when gas source is converted to Sweet natural gas by liquefied gas, flame ion current detecting unit 51 passes to the summation of the ionic current values of pilot circuit module 5 within the scope of D4, pilot circuit module 5 perceives gas source and changes, pilot circuit module 5 outputs signal to gas ratio valve 3 and regulates, combustion gas is mated again with AIR Proportional, until the liquefied gas ion(ic)current feedback pin 11 that flame ion current detecting unit 51 detects, the summation of the ionic current values of Sweet natural gas ion(ic)current feedback pin 12 is within the scope of D1, realize trouble-free burning.
The present invention is when gas source changes, and the aperture of the automatic regulating gas proportional valve 3 of gas stove energy, fast automatic regulates air and combusted proportion, makes combustion gas and AIR Proportional be adjusted to new air-fuel ratio, and then ensures the normal use of gas-cooker. The gas-cooker of the present invention can realize the automatic conversion between Sweet natural gas and liquefied gas, other plenum systems can be freely replaced by when a kind of plenum system can not use, ensure that user can enjoy enough heating in the winter of cold, effectively improve the quality of the life of user.
Claims (10)
1. a self-adaptation gas-cooker, comprise burner (1), pilot circuit module (5), gas ratio valve (3), burner (1) is provided with fire output hole (2), gas ratio valve (3) is electrically connected with pilot circuit module (5), characterized by further comprising liquefied gas ion(ic)current feedback pin (11), Sweet natural gas ion(ic)current feedback pin (12), flame ion current detecting unit (51), liquefied gas ion(ic)current feedback pin (11), Sweet natural gas ion(ic)current feedback pin (12) is installed on the burner and its public coupling end is electrically connected with pilot circuit module (5) by flame ion current detecting unit (51), pilot circuit module (5) feeds back pin (11) according to liquefied gas ion(ic)current, summation regulating gas proportional valve (3) aperture of the ionic current values that Sweet natural gas ion(ic)current feedback pin (12) detects.
2. self-adaptation gas-cooker according to claim 1, it is characterized in that described flame ion current detecting unit (51) comprises flame ion current input circuit (511), ac high-voltage produces circuit (515), exchange dividing potential drop circuit (512), DC voltage divider circuit (513), filtering circuit (514), flame ion current input circuit (511) one end and liquefied gas ion(ic)current feedback pin (11), Sweet natural gas ion(ic)current feedback pin (12) electrically connects, flame ion current input circuit (511) the other end, ac high-voltage produces circuit (512) and electrically connects with the input terminus exchanging dividing potential drop circuit (512) respectively, the output terminal of exchange dividing potential drop circuit (512) is electrically connected by the input terminus of DC voltage divider circuit (513) Yu filtering circuit (514), output terminal and the pilot circuit module (5) of filtering circuit (514) electrically connect.
3. self-adaptation gas-cooker according to claim 1 and 2, it is characterized in that described pilot circuit module (5) comprises MCU control unit, gas ratio valve regulation output circuit, gas ratio valve regulation output circuit electrically connects with MCU control unit, gas ratio valve (3) respectively.
4. self-adaptation gas-cooker according to claim 1 and 2, it is characterized in that described burner (1) is provided with feedback pin open holes, liquefied gas ion(ic)current feedback pin (11), Sweet natural gas ion(ic)current feedback pin (12) are arranged on burner (1) by feedback pin open holes respectively.
5. self-adaptation gas-cooker according to claim 1 and 2, it is characterized in that described fire output hole (2) is for interior ring fire fire output hole, the distance that the distance between Sweet natural gas ion(ic)current feedback pin (12) and fire output hole (2) is less than between liquefied gas ion(ic)current feedback pin (11) and fire output hole (2).
6. self-adaptation gas-cooker according to claim 5, it is characterised in that the distance between described Sweet natural gas ion(ic)current feedback pin (12) and fire output hole (2) feeds back the little 2-4mm of distance between pin (11) and fire output hole (2) than liquefied gas ion(ic)current.
7. self-adaptation gas-cooker according to claim 6, the distance that it is characterized in that between described Sweet natural gas ion(ic)current feedback pin (12) and fire output hole (2) is 1-5mm, and the distance between corresponding liquefied gas ion(ic)current feedback pin (11) and fire output hole (2) is 3-9mm.
8. self-adaptation gas-cooker according to claim 1 and 2, it is characterised in that the aperture of described gas ratio valve (3) is adjustable as default Sweet natural gas aperture or default liquefied gas aperture.
9. the control method of a self-adaptation gas-cooker, it is characterised in that comprise the steps:
1) Sweet natural gas aperture corresponding to gas ratio valve (3), liquefied gas aperture is preset, ionic current values summation scope D3 when ionic current values summation scope D1, Natural Gas Conversion are ionic current values summation scope D2 during liquefied gas, liquefied gas trouble-free burning when presetting Sweet natural gas trouble-free burning, ionic current values summation scope D4 when liquefied gas is converted to Sweet natural gas;
2) starting, the aperture of gas ratio valve (3) is last use aperture or acquiescence Sweet natural gas aperture, then lights a fire, enters 3);
3) by whether liquefied gas ion(ic)current feedback pin (11), Sweet natural gas ion(ic)current feedback pin (12) detection have flame, 4 are then entered);
4) then pilot circuit module (5) switches the aperture of gas ratio valve (3) if not, then 3 are reentered), if then liquefied gas ion(ic)current feedback pin (11), Sweet natural gas ion(ic)current feed back pin (12) flame detection ion current signal in real time, then enter 5);
5) when the ionic flame current value summation that liquefied gas ion(ic)current feeds back pin (11), Sweet natural gas ion(ic)current feedback pin (12) detects is within the scope of D1 or D3, the aperture of regulating gas proportional valve (3), does not then reenter 4), until shutdown; When the ionic flame current value summation that liquefied gas ion(ic)current feeds back pin (11), Sweet natural gas ion(ic)current feedback pin (12) detects is within the scope of D2, the aperture of pilot circuit module (5) regulating gas proportional valve (3), until ionic current values summation is within the scope of D3, then 4 are reentered), until shutdown; When the ionic flame current value summation that liquefied gas ion(ic)current feeds back pin (11), Sweet natural gas ion(ic)current feedback pin (12) detects is within the scope of D4, the aperture of pilot circuit module (5) regulating gas proportional valve (3), until ionic current values summation is within the scope of D1, then 4 are reentered), until shutdown.
10. the control method of self-adaptation gas-cooker according to claim 9, it is characterised in that the aperture step switching gas ratio valve (3) in described step 4) comprises:
If the aperture of gas ratio valve (3) is Sweet natural gas aperture before igniting, then switch to liquefied gas aperture;
If the aperture of gas ratio valve (3) is liquefied gas aperture before igniting, then switch to Sweet natural gas aperture.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112032772A (en) * | 2020-08-10 | 2020-12-04 | 华帝股份有限公司 | Gas source type self-adaptive stove control method and control system |
| CN112879959A (en) * | 2021-02-19 | 2021-06-01 | 珠海格力电器股份有限公司 | Control method and device of gas stove, controller and gas stove system |
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| CN112879959A (en) * | 2021-02-19 | 2021-06-01 | 珠海格力电器股份有限公司 | Control method and device of gas stove, controller and gas stove system |
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Application publication date: 20160608 |