CN102705995B - Control method for gas water heater for automatically adapting to multiple gas sources - Google Patents
Control method for gas water heater for automatically adapting to multiple gas sources Download PDFInfo
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- CN102705995B CN102705995B CN201210192288.8A CN201210192288A CN102705995B CN 102705995 B CN102705995 B CN 102705995B CN 201210192288 A CN201210192288 A CN 201210192288A CN 102705995 B CN102705995 B CN 102705995B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000007789 gas Substances 0.000 claims description 78
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 12
- 230000006978 adaptation Effects 0.000 claims description 11
- 239000003345 natural gas Substances 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The invention belongs to the technical field of the control of a gas water heater and discloses a control method for the gas water heater for automatically adapting to multiple gas sources. The control method comprises the following steps: 1) collecting the data of inlet water temperature, outlet water temperature and water flow by a controller; 2) calculating the data by the controller according to a preset formula; 3) automatically adjusting an input current of a gas proportional valve and a rotating speed of a speed-changing fan according to the calculated data, till an output heat load reaches a preset value; and 4) storing the data of the input current of the gas proportional valve, the input voltage of the speed-changing fan and the input current of the speed-changing fan at the moment. By improving the control method according to the invention, the gas water heater can adapt to multiple gas sources, without exchanging or improving the gas water heater, so that the cost of a user is greatly saved.
Description
Technical field
The invention belongs to the control technology field of gas heater, especially relate to the gas heater control method of the many sources of the gas of a kind of automatic adaptation.
Background technology
Existing gas heater can only use single gas kind, in the time that gas heater uses different source of the gas kind, user need buy the gas heater of corresponding source of the gas again, or original gas heater is transformed, and these schemes all need user to pay a large amount of costs.
Summary of the invention
In order to solve above-mentioned the deficiencies in the prior art, the present invention has designed the gas heater control method of the many sources of the gas of a kind of automatic adaptation, makes user not need to change or modifying gas water heater can be suitable for kinds of gas sources equally.
Concrete scheme of the present invention is: the gas heater control method of the many sources of the gas of a kind of automatic adaptation, comprises the steps: one) gather the data of inflow temperature, leaving water temperature, discharge by controller; Two) data are calculated by the formula of setting by controller; Three) according to the input current of the automatic regulating gas proportioning valve of calculated data and the rotating speed of speed-changing draught fan, until heat outputting load reaches setting value; Four) store the data of the input current of input voltage, the speed-changing draught fan of input current, the speed-changing draught fan of gas ratio valve now.This programme passes through to improve control method, thereby on the basis of not changing or improving gas heater, makes gas heater can be applicable to kinds of gas sources, has saved greatly user's cost.
Above-mentioned gas heater is by the data parameters operation after storing.
The heat outputting load of above-mentioned setting is made as Φ, and specific heat of water is made as C, and leaving water temperature is made as T2, and inflow temperature is made as T1, and discharge is made as M, and the formula of described setting is Φ=C × (T2-T1) × M/3.6.
The water inlet end of above-mentioned gas heater is provided with water flow sensor, and water flow sensor is electrically connected with controller, sends the data of discharge to controller.
The water inlet end of above-mentioned gas heater is provided with temperature sensor, and temperature sensor is electrically connected with controller, sends the data of inflow temperature to controller.
The water side of above-mentioned gas heater is provided with temperature sensor, and temperature sensor is electrically connected with controller, sends out the data of coolant-temperature gage to controller.
Above-mentioned variable speed electric motors, particularly adopts the variable speed electric motors, particularly of strong drum structure.
Above-mentioned source of the gas comprises liquefied gas, butagas, 12T natural gas, 10T natural gas.
Main beneficial effect of the present invention is: do not need to change or transformation gas heater, just can make gas heater automatically adapt to kinds of gas sources by improving control method, in the time that user uses different types of source of the gas, it can be adjusted to a best duty automatically.
Brief description of the drawings
Fig. 1 is workflow diagram of the present invention;
Fig. 2 is circuit control logic connection layout of the present invention;
Fig. 3 is the graph of a relation of the input current of gas ratio valve of the present invention and the rotating speed of speed-changing draught fan.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described.
As depicted in figs. 1 and 2, the gas heater control method of the many sources of the gas of a kind of automatic adaptation, comprises the steps: one) gather the data of inflow temperature, leaving water temperature, discharge by controller; Two) data are calculated by the formula of setting by controller; Three) according to the input current of the automatic regulating gas proportioning valve of calculated data and the rotating speed of speed-changing draught fan, until heat outputting load reaches setting value; Four) store the data of the input current of input voltage, the speed-changing draught fan of input current, the speed-changing draught fan of gas ratio valve now.
Then gas heater exits and regulates or keep operation by the data parameters of storage, and later also by this parameter operation.If change again source of the gas, can readjust to be again suitable for new source of the gas.
The heat outputting load of wherein setting is made as Φ (kW), and specific heat of water is made as C=4.19 * 10
-3(MJ/ kg * K), leaving water temperature is made as T2(DEG C), inflow temperature is made as T1(DEG C), discharge is made as M(kg/h), the formula of setting is Φ=C × (T2-T1) × M/3.6.
The data M of discharge sends to controller by the water flow sensor that is located at gas heater water inlet end.
The data T1 of inflow temperature sends to controller by the temperature sensor that is located at gas heater water inlet end.
The data T2 of leaving water temperature sends to controller by the temperature sensor that is located at gas heater water side.
Kinds of gas sources comprises liquefied gas, butagas, 12T natural gas, 10T natural gas.
As shown in Figure 3, the rotating speed of speed-changing draught fan changes with the variation of the input current of gas ratio valve, finally adjusts to the ratio of a best combustion gas and air.
For example: the gas heater of a 20kW is not in the time that the source of the gas using is nominal source of the gas, its operating procedure is: open burnt gas valve, inlet valve, go out hot-water valve, by start, by adjusting pattern, at this moment the water heater operation of can starting point fighting, temperature sensor, water flow sensor gathers inflow temperature T1, leaving water temperature T2, the data M of discharge, and send data to controller, controller calculates by formula Φ=C × (T2-T1) × M/3.6 data, according to the input current of the automatic regulating gas proportioning valve of calculated data and the rotating speed of speed-changing draught fan, the value of loading when the heat outputting of gas heater reaches factory setting value, during as 18kW, controller is storage every quantity at that time automatically, comprise: the input current of gas ratio valve, the input voltage of speed-changing draught fan, the input current of speed-changing draught fan.After data-storing, gas heater can exit adjusting pattern automatically, and in holding state.From then on start, this water heater just can use this type of source of the gas, and moves and can normally work by the parameters of having stored.
Claims (7)
1. a gas heater control method that automatically adapts to many sources of the gas, is characterized in that: comprise the steps: one) gather the data of inflow temperature, leaving water temperature, discharge by controller; Two) data are calculated by the formula of setting by controller; Three) according to the input current of the automatic regulating gas proportioning valve of calculated data and the rotating speed of speed-changing draught fan, until heat outputting load reaches setting value; Four) store the data of the input current of input voltage, the speed-changing draught fan of input current, the speed-changing draught fan of gas ratio valve now; (5) described gas heater is by the data parameters operation after storing.
2. the gas heater control method of the many sources of the gas of automatic adaptation according to claim 1, it is characterized in that: the heat outputting load of described setting is made as Φ, specific heat of water is made as C, leaving water temperature is made as T2, inflow temperature is made as T1, discharge is made as M, and the formula of described setting is Φ=C × (T2-T1) × M/3.6.
3. the gas heater control method of the many sources of the gas of automatic adaptation according to claim 2, it is characterized in that: the water inlet end of described gas heater is provided with water flow sensor, water flow sensor is electrically connected with controller, sends the data of discharge to controller.
4. the gas heater control method of the many sources of the gas of automatic adaptation according to claim 3, is characterized in that: the water inlet end of described gas heater is provided with temperature sensor, temperature sensor is electrically connected with controller, sends the data of inflow temperature to controller.
5. the gas heater control method of the many sources of the gas of automatic adaptation according to claim 4, is characterized in that: the water side of described gas heater is provided with temperature sensor, temperature sensor is electrically connected with controller, sends out the data of coolant-temperature gage to controller.
6. according to the gas heater control method of the many sources of the gas of automatic adaptation described in any one in claim 1～5, it is characterized in that: described variable speed electric motors, particularly adopts the variable speed electric motors, particularly of strong drum structure.
7. the gas heater control method of the many sources of the gas of automatic adaptation according to claim 6, is characterized in that: described source of the gas comprises liquefied gas, butagas, 12T natural gas, 10T natural gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210192288.8A CN102705995B (en) | 2012-06-12 | 2012-06-12 | Control method for gas water heater for automatically adapting to multiple gas sources |
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| CN201210192288.8A CN102705995B (en) | 2012-06-12 | 2012-06-12 | Control method for gas water heater for automatically adapting to multiple gas sources |
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| CN102705995A CN102705995A (en) | 2012-10-03 |
| CN102705995B true CN102705995B (en) | 2014-11-26 |
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| CN112577203B (en) * | 2019-09-30 | 2022-12-30 | 芜湖美的厨卫电器制造有限公司 | Air source switching method and device, water heater and computer readable storage medium |
| CN113137757B (en) * | 2020-01-20 | 2022-09-02 | 芜湖美的厨卫电器制造有限公司 | Combustion device, water heater and control method of water heater |
| CN111609560B (en) * | 2020-04-20 | 2022-05-31 | 芜湖美的厨卫电器制造有限公司 | Control method of gas water heater, gas water heater and computer readable storage medium |
| CN112050473B (en) * | 2020-08-24 | 2022-08-02 | 芜湖美的厨卫电器制造有限公司 | Power compensation method and compensation device for water heater and computer readable storage medium |
| CN112413658B (en) * | 2020-12-14 | 2023-07-04 | 深圳市合信达控制系统有限公司 | Gas quantity detection method and device and gas furnace |
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Address after: 528311 Guangdong, Foshan, Beijiao, the United States, the United States and the United States on the avenue of the United States, the headquarters of the United States building B floor, District, 26-28 Applicant after: MIDEA GROUP Co.,Ltd. Address before: 528311 Beijiao, Foshan, Shunde District, the town of Guangdong, the United States Avenue, No. 6 Applicant before: Midea Group |
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Effective date of registration: 20230328 Address after: 241000 west side of 3 / F, No.5 office building, new energy and new materials gathering area, Fuzhou Road, Jiangbei District, Wuhu City, Anhui Province Patentee after: Wuhu Midea intelligent kitchen electricity Manufacturing Co.,Ltd. Address before: 528311, 26-28, B District, Mei headquarters building, 6 Mei Road, Beijiao Town, Shunde District, Foshan, Guangdong. Patentee before: MIDEA GROUP Co.,Ltd. |
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