CN205245511U - Gas heater of accurate control air -fuel ratio - Google Patents
Gas heater of accurate control air -fuel ratio Download PDFInfo
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- CN205245511U CN205245511U CN201520989684.2U CN201520989684U CN205245511U CN 205245511 U CN205245511 U CN 205245511U CN 201520989684 U CN201520989684 U CN 201520989684U CN 205245511 U CN205245511 U CN 205245511U
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- gas
- heat exchanger
- fuel ratio
- burning
- accurate control
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Abstract
The utility model discloses a gas heater of accurate control air -fuel ratio, a serial communication port, include: combustor, heat exchanger, inlet tube, outlet pipe, fan, gas proportional valve, main control unit, collection petticoat pipe and oxygen sensor, the combustor is installed at a burning intracavity, fan and gas proportional valve provide the burning required air and gas for the chamber of burning, the heat exchanger install one with the heat transfer intracavity of burning chamber intercommunication, inlet tube, outlet pipe are connected with the heat exchanger, the collection petticoat pipe is installed on the heat transfer chamber, oxygen sensor installs in album petticoat pipe 8, main control unit and fan, gas proportional valve and oxygen sensor are connected. The utility model discloses increase oxygen sensor in album petticoat pipe, the oxygen content that makes the flue gas remain stationary can be finely tuned gas proportional valve and fan according to the oxygen content in the flue gas of burning back, no matter can both guarantee the best air -fuel ratio under any burning operating mode, and be favorable to the further catalytic treatment of flue gas.
Description
Technical field
The utility model relates to fluid heater technical field, relates in particular to a kind of air-fuel ratio of accurately controllingGas heater.
Background technology
At present, in the time that gas heater burns, generally control combustion gas by the water yield and the temperature setAperture size and the rotation speed of fan of proportioning valve, and then control gas quantity and intake, but this can only adjust roughlyJoint carries out the proportioning of combustion gas and air. Affected by the external factor such as gaseous-pressure, gas heater environment for use,This rough adjusting can not be mated air-fuel ratio well to reach the object of efficient burning.
Summary of the invention
The defect existing for prior art, the purpose of this utility model is to provide the one can be accurateControl air-fuel ratio, ensure clean-burning gas heater.
For reaching above object, the utility model adopts following technical scheme.
A gas heater for accurate control air-fuel ratio, is characterized in that, comprising: burner, changeHot device, water inlet pipe, outlet pipe, blower fan, gas ratio valve, master controller, exhaust fume collecting hood and lambda sensor,Described burner is arranged in a combustion chamber, described blower fan and gas ratio valve for combustion chamber provide burning requiredAir and combustion gas, described heat exchanger is arranged in a heat exchanging chamber being communicated with combustion chamber, described water inlet pipe,Outlet pipe is connected with heat exchanger, and described exhaust fume collecting hood is arranged on heat exchanging chamber, and described lambda sensor is arranged on collection cigaretteIn cover 8, described master controller is connected with blower fan, gas ratio valve and lambda sensor.
As further illustrating of such scheme, on water inlet pipe, be provided with the Hall being connected with master controllerElement and temp probe.
As further illustrating of such scheme, on outlet pipe, be provided with the Hall being connected with master controllerElement and temp probe.
As further illustrating of such scheme, the as a whole structure of described combustion chamber and heat exchanging chamber,Described heat exchanger is arranged on directly over burner.
As further illustrating of such scheme, described heat exchanger is condensing heat exchanger.
Compared with prior art, the beneficial effects of the utility model are:
One, propose a kind of new control air-fuel ratio structure, in exhaust fume collecting hood, increase lambda sensor, can rootAccording to the oxygen content in flue gas after burning, gas ratio valve and blower fan are finely tuned, no matter at any combustion conditionsCan ensure down best air-fuel ratio, combustion gas can be carried out efficient burning.
Two, lambda sensor is arranged in exhaust fume collecting hood, makes flue gas keep fixing oxygen content, is conducive to cigaretteThe further catalytic treatment of gas.
Brief description of the drawings
Figure 1 shows that the gas heater structural representation that the utility model provides.
Figure 2 shows that the gas water heater working schematic diagram that the utility model provides.
Description of reference numerals:
1: burner, 2: heat exchanger, 3: water inlet pipe, 4: outlet pipe, 5: blower fan, 6: combustionGas proportioning valve, 7: master controller, 8: exhaust fume collecting hood, 9: lambda sensor, 10: Hall element,11: temp probe.
Detailed description of the invention
Understand better essence of the present utility model for convenience of those skilled in the art, below in conjunction with accompanying drawingDetailed description of the invention of the present utility model is described in detail.
In the utility model, connecting a word should be interpreted broadly, not only comprise between the two directlyConnect, also comprise between the two by the indirect connection of intermediate; Not only comprise and being fixedly connected with, also comprise phaseIntercommunicated, electrical connection, and the signal connection of wired or wireless form etc.
As shown in Figure 1, a kind of gas heater of accurate control air-fuel ratio, comprising: burner 1, changeHot device 2, water inlet pipe 3, outlet pipe 4, blower fan 5, gas ratio valve 6, master controller 7, exhaust fume collecting hood 8 and oxygen passSensor 9, described burner 1 is arranged in a combustion chamber, and described blower fan 5 and gas ratio valve 6 are carried for combustion chamberFor burning required air and combustion gas, described heat exchanger 2 is arranged in a heat exchanging chamber being communicated with combustion chamber, instituteState water inlet pipe 3, outlet pipe 4 is connected with heat exchanger 2, described exhaust fume collecting hood 8 is arranged on heat exchanging chamber, described oxygen passesSensor 9 is arranged in exhaust fume collecting hood 8, and described master controller 7 connects with blower fan 5, gas ratio valve 6 and lambda sensor 9Connect.
In the present embodiment, the as a whole structure of preferred burn chamber and heat exchanging chamber, described heat exchanger 2 is installedDirectly over burner 1, described exhaust fume collecting hood 8 is arranged on the top of heat exchanging chamber. Further, for ease of settingInitial air-fuel ratio is also provided with the Hall element and the temp probe that are connected with master controller 7 on water inlet pipe 3. ?In other embodiments, described heat exchanger is condensing heat exchanger, on outlet pipe 4, is also provided with and master controller7 Hall element and the temp probes that connect, are not limited to the present embodiment.
As shown in Figure 2, during for real work, gas heater is first according to user's design temperature and HallThe flow that element 10 and temp probe 11 record, the proportioning that temperature information carries out air and combustion gas, burningCheng Zhong, in the flue gas detecting according to lambda sensor 9, oxygen content judges combustion position, in real time to gas ratio valve6 and blower fan 5 finely tune. Like this, no matter under which kind of combustion conditions, can ensure best air-fuel ratio, makeFuel gas high efficiency burning.
The gas and hot water of a kind of accurate control air-fuel ratio that compared with prior art, the utility model providesDevice, increases after lambda sensor, can the moment monitor smoke behavior, and the moment keeps burning efficiently; Even ratioWhen valve or blower fan can not effectively be controlled, also can keep rational air-fuel ratio, can adapt to various combustion conditions, carryThe adaptability of high water heater. Especially, lambda sensor is arranged in exhaust fume collecting hood, makes flue gas keep fixing oxygenContent, is conducive to the further catalytic treatment of flue gas.
Above detailed description of the invention has been described in detail essence of the present utility model, but can not be withThis limits protection domain of the present utility model. Apparently, opening in the utility model essenceUnder showing, the art those of ordinary skill also can carry out many improvement and modification, it should be noted that thisWithin a little improvement and modification all drop on claim protection domain of the present utility model.
Claims (5)
1. a gas heater of accurately controlling air-fuel ratio, is characterized in that, comprising: burner, heat exchanger,Water inlet pipe, outlet pipe, blower fan, gas ratio valve, master controller, exhaust fume collecting hood and lambda sensor, described combustionBurner is arranged in a combustion chamber, and described blower fan and gas ratio valve provide burning required air for combustion chamberAnd combustion gas, described heat exchanger is arranged in a heat exchanging chamber being communicated with combustion chamber, described water inlet pipe, outlet pipeBe connected with heat exchanger, described exhaust fume collecting hood is arranged on heat exchanging chamber, and described lambda sensor is arranged in exhaust fume collecting hood 8,Described master controller is connected with blower fan, gas ratio valve and lambda sensor.
2. the gas heater of a kind of accurate control air-fuel ratio according to claim 1, is characterized in that,Water inlet pipe is provided with the Hall element and the temp probe that are connected with master controller.
3. the gas heater of a kind of accurate control air-fuel ratio according to claim 1, is characterized in that,Outlet pipe is provided with the Hall element and the temp probe that are connected with master controller.
4. the gas heater of a kind of accurate control air-fuel ratio according to claim 1, is characterized in that, instituteState the as a whole structure of combustion chamber and heat exchanging chamber, described heat exchanger is arranged on directly over burner.
5. the gas heater of a kind of accurate control air-fuel ratio according to claim 1, is characterized in that, instituteStating heat exchanger is condensing heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520989684.2U CN205245511U (en) | 2015-12-01 | 2015-12-01 | Gas heater of accurate control air -fuel ratio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520989684.2U CN205245511U (en) | 2015-12-01 | 2015-12-01 | Gas heater of accurate control air -fuel ratio |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205245511U true CN205245511U (en) | 2016-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201520989684.2U Active CN205245511U (en) | 2015-12-01 | 2015-12-01 | Gas heater of accurate control air -fuel ratio |
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| CN (1) | CN205245511U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051762A (en) * | 2016-06-08 | 2016-10-26 | 中山市卡洛力热能科技有限公司 | Novel full preheating mixed fuel gas heating system and control method thereof |
| CN106440334A (en) * | 2016-10-09 | 2017-02-22 | 佛山市顺德区怡成电器有限公司 | Segmental-control secondary heat exchange condensation type gas heating water heater |
| CN110081611A (en) * | 2019-04-04 | 2019-08-02 | 芜湖美的厨卫电器制造有限公司 | The control method and gas heater of gas heater |
| CN110274396A (en) * | 2019-06-28 | 2019-09-24 | 华帝股份有限公司 | Control method of full-premix gas water heater and gas water heater |
| CN111780154A (en) * | 2018-01-18 | 2020-10-16 | 芜湖美的厨卫电器制造有限公司 | Control device and method for gas-fired machine and gas water heater |
| CN112505124A (en) * | 2020-11-30 | 2021-03-16 | 深圳安培龙科技股份有限公司 | Oxygen sensor for improving combustion efficiency and emission standard of gas water heater |
-
2015
- 2015-12-01 CN CN201520989684.2U patent/CN205245511U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051762A (en) * | 2016-06-08 | 2016-10-26 | 中山市卡洛力热能科技有限公司 | Novel full preheating mixed fuel gas heating system and control method thereof |
| CN106440334A (en) * | 2016-10-09 | 2017-02-22 | 佛山市顺德区怡成电器有限公司 | Segmental-control secondary heat exchange condensation type gas heating water heater |
| CN111780154A (en) * | 2018-01-18 | 2020-10-16 | 芜湖美的厨卫电器制造有限公司 | Control device and method for gas-fired machine and gas water heater |
| CN111780154B (en) * | 2018-01-18 | 2023-01-24 | 芜湖美的厨卫电器制造有限公司 | Control device and method for gas-fired machine and gas water heater |
| CN110081611A (en) * | 2019-04-04 | 2019-08-02 | 芜湖美的厨卫电器制造有限公司 | The control method and gas heater of gas heater |
| CN110274396A (en) * | 2019-06-28 | 2019-09-24 | 华帝股份有限公司 | Control method of full-premix gas water heater and gas water heater |
| CN110274396B (en) * | 2019-06-28 | 2021-11-12 | 华帝股份有限公司 | Control method of full-premix gas water heater and gas water heater |
| CN112505124A (en) * | 2020-11-30 | 2021-03-16 | 深圳安培龙科技股份有限公司 | Oxygen sensor for improving combustion efficiency and emission standard of gas water heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |