CN1888550A - Air Quantity controlling device and method for gas stove - Google Patents
Air Quantity controlling device and method for gas stove Download PDFInfo
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- CN1888550A CN1888550A CN 200510014118 CN200510014118A CN1888550A CN 1888550 A CN1888550 A CN 1888550A CN 200510014118 CN200510014118 CN 200510014118 CN 200510014118 A CN200510014118 A CN 200510014118A CN 1888550 A CN1888550 A CN 1888550A
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Abstract
The inventive air volume control device comprises a combustion part, a gas supply valve, an air supply fan, a gas supply pipe, an air supply pipe, a mixing pipe whose one side connected with gas and air supply pipes and whose other side connected in the combustion part, a pressure sensor disposed in the air supply pipe for measuring the internal pressure and a microcomputer for controlling the rotation number of the air supply fan according the pressure sensed by the pressure sensor. It's control method includes the following steps: first, the pressure sensor is used for measuring the internal pressure of the air supply pipe when the mixed gas starts to burn; second, intercomparing the measured pressure and the set pressure; at last controlling the rotation number per minute of the air supply fan according to the comparison judgment result at the second step.
Description
Technical field
The invention relates to gas-cooker, particularly a kind of air capacity control device and control method of gas-cooker.
Background technology
In general, gas-cooker is burning LPG, and combustion gas such as LNG are produced as and warm oneself, cooking is isocaloric, are made into variform according to purposes.
Gas-cooker below in conjunction with the description of drawings prior art.Fig. 1 is the simple plane of the gas-cooker of prior art.As shown in Figure 1, comprise, utilize the burning portion 1 of the heat heating heated object of these generations of burning by after combustion gas and the inflow of Air mixing gas; Adjustment is to the fuel gas supply valve 2 of the gas quantity of burning portion 1 supply; Adjustment is supplied with fan 3 formations to the air of the air capacity that burning portion 1 supplies with.
Here, air is supplied with fan 3 and is connected with burning portion 1 with mixing tube 4 by air supply pipe 6, and fuel gas supply valve 2 is connected with burning portion 1 with mixing tube 4 by gas supply pipe 5.
Therefore, supply with fan 3 leaked-in airs by air and flow into 4 li of mixing tubes through air supply pipe 6, the combustion gas that flows into by fuel gas supply valve 2 flows into 4 li of mixing tubes through gas supply pipe 5, and air that the inflow mixing tube is 4 li and combustion gas are supplied with burning portion 1 in mixing tube 4 internal mix.
As mentioned above, the mist burning of supplying with burning portion 1 produces heat, utilizes the heat heating heated object that produces like this.
But, as the gas-cooker of the prior art of above-mentioned formation, when 1 running of burning portion, carrying out air in the time of fuel gas supply supplies with, and only use the fixing rotary air of revolutions per minute (RPM) to supply with fan 3, provide air to burning portion 1, so there is the low shortcoming of fuel efficiency.
In the operation of gas-cooker, As time goes on the load that acts on air supply fan 3 changes, especially, different during with fired state during non-fired state, it is irrelevant, always stable with the time that opposite air is supplied with the revolutions per minute (RPM) of fan 3, so owing to reasons such as the air capacity of burning portion 1 lack, in burning portion 1 unburnt phenomenon taking place, has that fuel efficiency is low, a shortcoming such as carbonomonoxide concentration increase in the exhaust.
That is, according to the pressure state of burning portion 1, air supply pipe 6 pressure inside are big, supply with the load of fan 3 big the time when air, density also improves, thus effective supply to the air capacity of 1 li in burning portion become required more than, flame dances in the air in burning portion 1, and heat can not normally be provided.
In addition, because of air supply pipe 6 pressure inside low, when the load of air supply fan 3 is little, density is also low, so effective supply lacks to the air capacity of 1 li in burning portion, in burning portion 1 unburnt phenomenon takes place, have carbonomonoxide concentration increase in the gas of discharging, even the danger of back-fire takes place easily.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of air capacity control device and control method of gas-cooker, according to the load of air supply fan, be pressure, adjust the revolution that air is supplied with fan, provide optimal air combustion gas ratio to burning portion, guiding completing combustion, the efficient of raising fuel.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: the air capacity control device of gas-cooker comprises by after combustion gas and the inflow of Air mixing gas, the burning portion of the heat heating heated object that burning produces; The fuel gas supply valve of the gas quantity that adjustment is supplied with to above-mentioned burning portion; Adjustment is supplied with fan to the air of the air capacity that above-mentioned burning portion supplies with; Catch up with and state the gas supply pipe that the fuel gas supply valve connects; Catch up with and state the air supply pipe that air is supplied with the fan connection; Mixing tube one side is caught up with and is stated gas supply pipe and air supply pipe and connect, and opposite side is connected above-mentioned burning portion; Be provided in the pressure detecting sensor of measuring internal pressure in the above-mentioned air supply pipe; Control the micro computer formation that above-mentioned air is supplied with the fan rotation number according to the pressure of above-mentioned pressure perception sensor senses.
Above-mentioned pressure detecting sensor is provided in the air supply pipe that connects above-mentioned burning portion and above-mentioned air supply fan.
When including above-mentioned mist and take fire, gas-cooker air capacity control method knows the 1st stage of the above-mentioned air supply pipe internal pressure of sensor measurement with above-mentioned feeling of stress; The pressure of more above-mentioned measurement and the 2nd stage of setting pressure mutually; Control the 3rd stage that above-mentioned air is supplied with fan revolutions per minute (RPM) according to comparing judged result in above-mentioned the 2nd stage.
In above-mentioned the 3rd stage, the comparison judged result in above-mentioned the 2nd stage reduces the RPM that air is supplied with fan when gaging pressure is big than setting pressure, increase the RPM that air is supplied with fan when gaging pressure is little than setting pressure.
As mentioned above, the invention has the beneficial effects as follows: the present invention always keeps best air-fuel ratio, keeps the completing combustion in the burning portion, can not only reduce the carbonomonoxide concentration of exhaust thus, and can also improve the fuel efficiency of heated object.
Description of drawings
Fig. 1 is the simple pie graph of the gas-cooker of prior art,
Fig. 2 is the simple pie graph of gas-cooker of the present invention,
Fig. 3 is a gas-cooker air capacity control method programme diagram of the present invention.
Among the figure:
10: burning portion 20: the fuel gas supply valve
30: air is supplied with fan 40: mixing tube
50: gas supply pipe 60: air supply pipe
70: pressure detecting sensor 80: micro computer
The specific embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail: Fig. 2 is the simple pie graph of gas-cooker of the present invention, and Fig. 3 is a gas-cooker air capacity control method programme diagram of the present invention.
As shown in Figure 2, the air capacity control device of gas-cooker comprises by after combustion gas and the inflow of Air mixing gas, the burning portion 10 of the heat heating heated object that burning produces; The fuel gas supply valve 20 of the gas quantity that adjustment is supplied with to above-mentioned burning portion 10; Adjustment is supplied with fan 30 to the air of the air capacity that above-mentioned burning portion 10 supplies with; Catch up with and state the gas supply pipe 50 that fuel gas supply valve 20 connects; Catch up with and state the air supply pipe 60 that air is supplied with fan 30 connections; Mixing tube 40 1 sides are caught up with and are stated gas supply pipe 50 and air supply pipe 60 and connect, and opposite side is connected above-mentioned burning portion 10; Be provided in 60 li pressure detecting sensors 70 of measuring internal pressure of above-mentioned air supply pipe; Control micro computer 80 formations that above-mentioned air is supplied with fan 30 rotation numbers according to above-mentioned pressure detecting sensor 70 sensed pressure.
Below in conjunction with accompanying drawing 3 explanations gas-cooker air capacity control method of the present invention.At first, if the user is placed on burning portion 10 back running gas-cookers to heated object, micro computer 80 provides combustion gas according to the open fuel gas supply valve 20 of the gas quantity of setting to mixing tube 40, meanwhile use according to the RPM rotary air of the air capacity of setting and supply with fan 30, provide air to mixing tube 40.
And combustion gas and Air mixing gas are supplied with after-combustion by mixing tube 40 to burning portion 10, utilize thus because of the mist burning produces heat and heat heated object.
As mentioned above, when beginning to heat heated object, above-mentioned pressure detecting sensor 70 is measured after the internal pressure of above-mentioned air supply pipe 60 the 1st stage to micro computer 80 transmits.
Therefore, the gaging pressures that relatively transmit mutually of above-mentioned micro computer 80 and the 2nd stage of having judged after the setting pressure.
The judged result of above-mentioned micro computer 80, when above-mentioned gaging pressure is big than setting pressure, reduce the RPM that air is supplied with fan 30, the air capacity that minimizing provides to mixing tube 40, when above-mentioned gaging pressure is little than setting pressure, increase the RPM that air is supplied with fan 30 in addition, the air capacity that increase provides to mixing tube 40, and the RPM that when above-mentioned gaging pressure is identical with setting pressure air is supplied with fan 30 maintains the 3rd stage of original state.
Then, above-mentioned micro computer 80 judges that whether the heating of gas-cooker finishes, if heating finishes, close above-mentioned fuel gas supply valve 20, and stop the running that above-mentioned air is supplied with fan 30, finish the cooking of heated object, if heating also there is not end in addition, carry out above-mentioned 3 stages of the 1st stage to the repeatedly.
Claims (4)
1. the air capacity control device of a gas-cooker comprises by after combustion gas and the inflow of Air mixing gas the burning portion (10) of the heat heating heated object that burning produces; The fuel gas supply valve (20) of the gas quantity that adjustment is supplied with to above-mentioned burning portion 10; Adjustment is supplied with fan (30) to the air of the air capacity that above-mentioned burning portion (10) supplies with; Catch up with and state the gas supply pipe (50) that fuel gas supply valve (20) connects; Catch up with and state the air supply pipe (60) that air is supplied with fan (30) connection; Mixing tube (40) one sides are caught up with and are stated gas supply pipe (50) and air supply pipe (60) connection, and opposite side is connected above-mentioned burning portion (10); It is characterized in that, be equipped with the pressure detecting sensor (70) of measuring internal pressure in above-mentioned air supply pipe (60) lining; Control micro computer (80) formation that above-mentioned air is supplied with fan (30) rotation number according to above-mentioned pressure detecting sensor (70) sensed pressure.
2. the air capacity control device of gas-cooker according to claim 1 is characterized in that, above-mentioned pressure detecting sensor (70) is provided in air supply pipe (60) lining that connects above-mentioned burning portion (10) and above-mentioned air supply fan (30).
3. a kind of air capacity control method of the air capacity control device of gas-cooker according to claim 1, it is characterized in that, know the 1st stage of the above-mentioned air supply pipe internal pressure of sensor measurement when said method includes above-mentioned mist and takes fire with above-mentioned feeling of stress; The pressure of more above-mentioned measurement and the 2nd stage of setting pressure mutually; Control the 3rd stage that above-mentioned air is supplied with fan revolutions per minute (RPM) according to comparing judged result in above-mentioned the 2nd stage.
4. the air capacity control method of gas-cooker according to claim 3, it is characterized in that, in above-mentioned the 3rd stage, the comparison judged result in above-mentioned the 2nd stage, when gaging pressure is big than setting pressure, reduce the RPM that air is supplied with fan, when gaging pressure is little than setting pressure, increase the RPM that air is supplied with fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510014118 CN1888550A (en) | 2005-06-29 | 2005-06-29 | Air Quantity controlling device and method for gas stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510014118 CN1888550A (en) | 2005-06-29 | 2005-06-29 | Air Quantity controlling device and method for gas stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1888550A true CN1888550A (en) | 2007-01-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510014118 Pending CN1888550A (en) | 2005-06-29 | 2005-06-29 | Air Quantity controlling device and method for gas stove |
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| CN (1) | CN1888550A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101701721B (en) * | 2009-11-13 | 2011-06-15 | 吴锦志 | Intelligent control system of gas utensil |
| CN102200300A (en) * | 2011-04-15 | 2011-09-28 | 上海理工大学 | Feedback motor automatic combustion control gas ratio device |
| CN106765334A (en) * | 2016-12-06 | 2017-05-31 | 江门市永成厨具设备有限公司 | A kind of boiler |
-
2005
- 2005-06-29 CN CN 200510014118 patent/CN1888550A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101701721B (en) * | 2009-11-13 | 2011-06-15 | 吴锦志 | Intelligent control system of gas utensil |
| CN102200300A (en) * | 2011-04-15 | 2011-09-28 | 上海理工大学 | Feedback motor automatic combustion control gas ratio device |
| CN106765334A (en) * | 2016-12-06 | 2017-05-31 | 江门市永成厨具设备有限公司 | A kind of boiler |
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Open date: 20070103 |