CN110307643A - A kind of gas heater and its method for controlling combustion - Google Patents
A kind of gas heater and its method for controlling combustion Download PDFInfo
- Publication number
- CN110307643A CN110307643A CN201810228934.9A CN201810228934A CN110307643A CN 110307643 A CN110307643 A CN 110307643A CN 201810228934 A CN201810228934 A CN 201810228934A CN 110307643 A CN110307643 A CN 110307643A
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- Prior art keywords
- revolving speed
- exhaust fan
- air blower
- controller
- gas
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000007789 gas Substances 0.000 claims abstract description 67
- 239000000567 combustion gas Substances 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 238000005259 measurement Methods 0.000 claims description 3
- 239000000779 smoke Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 2
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000002350 accommodative effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000012384 transportation and delivery Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Regulation And Control Of Combustion (AREA)
Abstract
The present invention relates to a kind of gas heater and its method for controlling combustion, gas heater includes combustion chamber, for controlling the proportioning valve how many into burning Indoor Combustion gas, gas gathering mask above burner is set, the exhaust pipe being connected to gas gathering mask, it is arranged below combustion chamber, air outlet and combustion chamber, the how many lower air blower of air is blown into for being blown into air into combustion chamber and controlling, the controller being connect with proportioning valve and lower air blower, it is characterized by also including be arranged between gas gathering mask and exhaust pipe, air intake vent is connected to gas gathering mask, the upper exhaust fan that air outlet is connected to exhaust pipe, upper exhaust fan is also connect with controller.Compared with prior art, the present invention has the advantages that upper two blowers of exhaust fan and lower air blower are arranged, one is played bulging wind action below the box of combustion chamber, one is played draft effect between gas gathering mask and exhaust pipe, two fans in series wind pressure are doubled and redoubled, resistance of pipe system can easily be overcome, guarantee that smoke evacuation is unobstructed.
Description
Technical field
The present invention relates to a kind of gas heater and its method for controlling combustion.
Background technique
Domestic gas-fired water heater will face many uncontrollable factors during use, fluctuation, combustion such as flow of inlet water
It burns external wind caused by the difference of gas purity, the air pressure of burning gases be different, the external world blows and presses through big etc., these factors are equal
It may influence the temperature persistance of gas heater or gas heater is caused to can not work normally.Wherein external wind, which presses through, makes greatly
At machine can not normal combustion and the problem of bringing, becomes increasingly conspicuous, such as the high-rise buildings in coastal cities, water heater air outlet warp
Often have very big wind-force, after wind-force reaches some strength water heater will occur ignition point not or be burning when it is unexpected
The problems such as blowing-out.These problems decline the accommodative ability of environment of domestic gas-fired water heater.
The workflow of conventional domestic gas-fired water heater are as follows: as long as guaranteeing there is combustion gas and air in combustion chamber when normal combustion
Carry out according to a certain percentage mixing can combustion heating, air blows in combustion chamber by blower, and fuel gas is by Proportional Valve-controlled
System is sent to combustion chamber, air and fuel gas mixing after-combustion in the combustion chamber, and the exhaust gas after burning is by combustion gas warm
Gas outlet discharge at the top of hydrophone, if external wind presses through greatly at this time, extraneous air will be fallen in combustion chamber from air outlet
Fill, the proportion of burn at this time indoor air and imflammable gas change cause ignition point not or burning in it is flame-out suddenly
Phenomenon.
To solve the above-mentioned problems, the existing gas heater with wind loading rating is generally by gas heater
The detection that wind pressure sensor carries out wind pressure is added at exhaust outlet, when wind pressure sensor detects wind pressure value, is just improved blower and is turned
Speed, it is linear between the numerical value that wherein rotation speed of fan improves and the size of external world's wind pressure data.And in gas heater, by
Different in the installation site of blower, the mode for being sent into air into combustion chamber generally has lower blowing-type and two kinds of upper air-draft-type；?
In lower blowing-type, below burner, the air outlet of blower is blown assembling with combustion chamber and into burner combustion room
Wind is sent into air, is at this time micro-positive pressure in combustion chamber heat exchanger space, this, which just needs to improve cost, ensures that better systems seal
Property, prevent flue gas from not leaking outside；And in upper air-draft-type, assembling is above burner and heat exchanger, the air inlet of blower
With combustion chamber, to combustion chamber exhausting so that outside air enters combustion chamber, in the structure, since blower is in heat exchanger
Top up takes out flue gas, and air is driven to enter combustion chamber box, and combustion chamber opened downward is additionally related to multi-functional passive entry convenient for air inflow, air
There is the risk that flame overflows combustion chamber in this way in combustion chamber box.
Whether blowing-type and upper air-draft-type are descended, air enters combustion chamber box and is both needed to by uniform flow orifice, burner combustion
Become flue gas by heat-exchanger fin, gas gathering mask, is finally discharged after smoke pipe bend pipe, straight tube, entire resistance of pipe system is big, right
Blower requires height, once external wind presses through greatly, blower must just improve revolution to improve wind pressure, but so, air quantity meeting
Demand beyond burning, the prior art can generally force to reduce air quantity using the method that fan inlet blocks, so existing big portion
Fan of gas water heater is divided to deviate from best efficiency point, inefficiency.Also, due to only one wind of existing gas heater
Machine or upper pumping or lower drum, but Wind-Pressure Resistance effect is not ideal: existing gas heater hot day heats up water high-temperature
Degree is unable to come down；When having wind, combustion instability, the pollutant emissions such as CO, NOx are big.
Summary of the invention
The technical problem to be solved by the present invention is to for the above-mentioned prior art provide one kind can guarantee optimum combustion regime,
Fan efficiency high gas heater and its method for controlling combustion.
The technical scheme of the invention to solve the technical problem is: a kind of gas heater, including combustion chamber, it uses
Enter the how many proportioning valve of burning Indoor Combustion gas in control, the gas gathering mask above burner is set, is connected to gas gathering mask
Exhaust pipe, be arranged in below combustion chamber, air outlet and combustion chamber, be blown into for being blown into air into combustion chamber and controlling
The how many lower air blower of air, the controller being connect with proportioning valve and lower air blower, it is characterised in that: further include being arranged in gas collection
Cover be connected to between exhaust pipe, air intake vent with gas gathering mask, the upper exhaust fan that air outlet is connected to exhaust pipe, upper exhaust fan also with
Controller connection.
Wind pressure sensor is equipped in the exhaust pipe or at exhaust outlet, wind pressure sensor is also connect with controller.
The control method of above-mentioned gas heater are as follows: after lighting a fire successfully, the controller is according to the negative of gas heater
Lotus obtains the initial openings parameter of the initial speed of exhaust fan, the initial speed of lower air blower and proportioning valve, wherein upper take out
The revolving speed of blower is identical with the initial speed of lower air blower, and then controller carries out Combustion System as follows:
Step 1, controller are using PID thermostatic control logic to the revolving speed of upper exhaust fan, the revolving speed of lower air blower and ratio
The opening parameter of example valve is controlled, and under PID thermostatic control logic, the revolving speed of upper exhaust fan and lower blower speed keep phase
Together；
Step 2, controller pass through the wind pressure value in the wind pressure sensor real-time measurement external world, when extraneous real-time wind pressure value is greater than
When preset value, while the revolving speed of upper exhaust fan and the revolving speed of lower air blower are improved, enters step 3, be otherwise directly entered step 3；
Whether gas heater is in minimum load at this time for step 3, controller judgement, if so, 4 are entered step, if not, into
Enter step 7；In the step, gas heater is in minimum load and refers to that the revolving speed of exhaust fan and the revolving speed of lower air blower are in
The aperture of minimum speed, proportioning valve is in minimum aperture；
Step 4, controller judge whether leaving water temperature is greater than set temperature, if so, 5 are entered step, if not being, into step
Rapid 6；
Step 5 increases the revolving speed for descending air blower, the revolving speed of exhaust fan, return step 4 in reduction；
Step 6 judges whether leaving water temperature is equal to set temperature, if so, return step 4；If not being, subsequently into step
7；
Step 7, controller enter PID thermostatic control logic to the revolving speed of upper exhaust fan, the revolving speed of lower air blower and ratio
The opening parameter of example valve is controlled, and under PID thermostatic control logic, the revolving speed of upper exhaust fan and lower blower speed keep phase
Together, subsequently into step 8；
Step 8 judges whether water flow is less than preset threshold, if so, closing fire, if not being, return step 1.
Gas heater is preset in the controller under different load, the initial speed of upper exhaust fan, lower air blower
Initial speed and proportioning valve initial openings parameter；The load of gas heater is that the setting with gas heater goes out water temperature
Spend corresponding parameter.
In the step 2, when extraneous real-time wind pressure value is greater than preset value, and the wind pressure value increased is Δ P, then upper exhausting
The revolution that the revolving speed of the revolving speed of machine and lower air blower improves is Δ n=M × Δ P/10, and wherein M is preset constant.
In the step 5, in increase after the revolving speed of the revolving speed of exhaust fan, the lower air blower of reduction, it need to guarantee upper exhaust fan
Revolving speed is K times of revolving speed of lower air blower, K for it is preset be more than or equal to 1 constant.
Compared with the prior art, the advantages of the present invention are as follows two blowers of exhaust fan and lower air blower in setting, one
Bulging wind action is played below the box of combustion chamber, one is played draft effect, two fans in series wind between gas gathering mask and exhaust pipe
Pressure is doubled and redoubled, and can easily overcome resistance of pipe system, guarantees that smoke evacuation is unobstructed.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of gas heater in the embodiment of the present invention；
Fig. 2 is the Combustion System flow chart of gas heater in the embodiment of the present invention.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
Gas heater as shown in Figure 1, including combustion chamber 1, it is how many into burning Indoor Combustion gas for controlling
Proportioning valve 2, is arranged the gas gathering mask 3 above burner, and the exhaust pipe 4 being connected to gas gathering mask 3 is arranged below combustion chamber 1, goes out
It is that air port is connected to combustion chamber 1, be blown into the how many lower air blower 5 of air for being blown into air into combustion chamber and controlling, with than
Example valve 2 and lower air blower 5 connection controller 6, be arranged between gas gathering mask and exhaust pipe, air intake vent be connected to gas gathering mask,
The upper exhaust fan 7 that air outlet is connected to exhaust pipe, upper exhaust fan 7 are also connect with controller 6；In exhaust pipe or at exhaust outlet
Equipped with wind pressure sensor 8, wind pressure sensor 8 is also connect with controller 6.
The control method of above-mentioned gas heater are as follows: after lighting a fire successfully, the controller is according to the negative of gas heater
Lotus obtains the initial openings parameter of the initial speed of exhaust fan, the initial speed of lower air blower and proportioning valve, wherein upper take out
The revolving speed of blower is identical with the initial speed of lower air blower, and then controller carries out Combustion System as follows, referring to fig. 2
It is shown:
Step 1, controller are using PID thermostatic control logic to the revolving speed of upper exhaust fan, the revolving speed of lower air blower and ratio
The opening parameter of example valve is controlled, and under PID thermostatic control logic, the revolving speed of upper exhaust fan and lower blower speed keep phase
Together；PID thermostatic control logic uses existing conventional techniques；
Step 2, controller pass through the wind pressure value in the wind pressure sensor real-time measurement external world, when extraneous real-time wind pressure value is greater than
When preset value, while the revolving speed of upper exhaust fan and the revolving speed of lower air blower are improved, enters step 3, be otherwise directly entered step 3；
Whether gas heater is in minimum load at this time for step 3, controller judgement, if so, 4 are entered step, if not, into
Enter step 7；In the step, gas heater is in minimum load and refers to that the revolving speed of exhaust fan and the revolving speed of lower air blower are in
The aperture of minimum speed, proportioning valve is in minimum aperture；
Step 4, controller judge whether leaving water temperature is greater than set temperature, if so, 5 are entered step, if not being, into step
Rapid 6；
Step 5 increases the revolving speed for descending air blower, the revolving speed of exhaust fan, return step 4 in reduction；
Step 6 judges whether leaving water temperature is equal to set temperature, if so, return step 4；If not being, subsequently into step
7；
Step 7, controller enter PID thermostatic control logic to the revolving speed of upper exhaust fan, the revolving speed of lower air blower and ratio
The opening parameter of example valve is controlled, and under PID thermostatic control logic, the revolving speed of upper exhaust fan and lower blower speed keep phase
Together, subsequently into step 8；
Step 8 judges whether water flow is less than preset threshold, if so, closing fire, if not being, return step 1.
Gas heater is preset in controller under different load, the initial speed of upper exhaust fan, lower air blower just
The initial openings parameter of beginning revolving speed and proportioning valve；The load of gas heater is the setting leaving water temperature phase with gas heater
Corresponding parameter.
In step 2 above, when extraneous real-time wind pressure value is greater than preset value, and the wind pressure value increased is Δ P, then upper to take out
The revolution that the revolving speed of the revolving speed of blower and lower air blower improves is Δ n=M × Δ P/10, and wherein M is preset constant.
In above-mentioned steps 5, in increase after the revolving speed of the revolving speed of exhaust fan, the lower air blower of reduction, it need to guarantee upper exhaust fan
Revolving speed be K times of revolving speed of lower air blower, K for it is preset be more than or equal to 1 constant.
Lower air blower plays bulging wind action below the box of combustion chamber in the present invention, and upper exhaust fan plays the work of exhaust fan
With two characteristic curve of fan are close, and two fans in series wind pressure are doubled and redoubled, and can easily overcome resistance of pipe system, guarantee that smoke evacuation is unobstructed；
In method for controlling combustion of the invention, two blower cooperatings play the effects of stablizing burning, Wind-Pressure Resistance；When external wind presses through
When big, single blower increases wind pressure by improving revolution and fights extraneous wind pressure, but it is limited to can be improved revolution, if it is lower drum-type wind
Machine system, blower is below the box of combustion chamber, and external wind puts out the blower flame that blows the fire when blower acts, and two fans of the invention are anti-
Wind, reaction speed is fast, while the entire pipeline stabilization smoke evacuation of two fans is smooth, can guarantee flameholding；In addition, the present invention can also expand
Big water heater temperature range, in summer environment temperature heat, due to the limitation of water heater minimum load, outlet water temperature of water heater ratio
Set temperature is high, at this point, two blower revolutions of adjustment, lower air blower revolution is big, and upper exhaust fan revolution is small, according to fans in series spy
Property, whole system air quantity guarantees normal combustion among two fan deliveries, and the air capacity that lower air blower has more is then to extra
Heat cool down to reach set temperature；Wind pressure improves, and under conditions of meeting air quantity, blower revolution can be reduced, noise
Also (one of maximum noise source when fan noise is water heater working) is significantly reduced；Single blower working efficiency improves
, increase electrical machinery life, cost can also be reduced and choose the small blower that low cost meets needs.
Claims (6)
1. a kind of gas heater, including combustion chamber, for controlling the proportioning valve how many into burning Indoor Combustion gas, setting
Gas gathering mask above burner, the exhaust pipe being connected to gas gathering mask are arranged below combustion chamber, air outlet and combustion chamber
, for being blown into air into combustion chamber and controlling be blown into the how many lower air blower of air, connect with proportioning valve and lower air blower
Controller, it is characterised in that: further include be arranged between gas gathering mask and exhaust pipe, air intake vent be connected to gas gathering mask, outlet air
The upper exhaust fan that mouth is connected to exhaust pipe, upper exhaust fan are also connect with controller.
2. gas heater according to claim 1, it is characterised in that: be equipped with wind pressure in exhaust pipe or at exhaust outlet
Sensor, wind pressure sensor are also connect with controller.
3. a kind of control method of gas heater as claimed in claim 2, it is characterised in that: described after lighting a fire successfully
Controller obtains the initial speed and proportioning valve of the initial speed of upper exhaust fan, lower air blower according to the load of gas heater
Initial openings parameter, wherein the revolving speed of upper exhaust fan is identical with the initial speed of lower air blower, then controller passes through as follows
Step carries out Combustion System:
Step 1, controller are using PID thermostatic control logic to the revolving speed of upper exhaust fan, the revolving speed and proportioning valve of lower air blower
Opening parameter controlled, under PID thermostatic control logic, the revolving speed of upper exhaust fan and lower blower speed keep identical；
Step 2, controller pass through the wind pressure value in the wind pressure sensor real-time measurement external world, preset when extraneous real-time wind pressure value is greater than
When value, while the revolving speed of upper exhaust fan and the revolving speed of lower air blower are improved, enters step 3；Otherwise it is directly entered step 3；
Whether gas heater is in minimum load at this time for step 3, controller judgement, if so, 4 are entered step, if not, entering step
Rapid 7；In the step, gas heater is in minimum load and refers to that the revolving speed of exhaust fan and the revolving speed of lower air blower are in minimum
The aperture of revolving speed, proportioning valve is in minimum aperture；
Step 4, controller judge whether leaving water temperature is greater than set temperature, if so, 5 are entered step, if not being to enter step 6；
Step 5 increases the revolving speed for descending air blower, the revolving speed of exhaust fan, return step 4 in reduction；
Step 6 judges whether leaving water temperature is equal to set temperature, if so, return step 4；If not being, subsequently into step 7；
Step 7, controller enter PID thermostatic control logic to the revolving speed of upper exhaust fan, the revolving speed and proportioning valve of lower air blower
Opening parameter controlled, under PID thermostatic control logic, the revolving speed of upper exhaust fan and lower blower speed keep identical,
Subsequently into step 8；
Step 8 judges whether water flow is less than preset threshold, if so, closing fire, if not being, return step 1.
4. the control method of gas heater according to claim 3, it is characterised in that: be preset with combustion in the controller
Under different load, the initial speed of upper exhaust fan, the initial speed of lower air blower and the initial of proportioning valve open gas water heater
Mouth parameter；The load of gas heater is parameter corresponding with the setting leaving water temperature of gas heater.
5. the control method of gas heater according to claim 3, it is characterised in that: in the step 2, when the external world
Real-time wind pressure value is greater than preset value, and the wind pressure value increased is Δ P, then the revolving speed of upper exhaust fan and the revolving speed of lower air blower improve
Revolution be Δ n=M × Δ P/10, wherein M be preset constant.
6. the control method of gas heater according to claim 3, it is characterised in that: in the step 5, taken out in increase
The revolving speed of blower after reducing the revolving speed of air blower down, need to guarantee that the revolving speed of upper exhaust fan is K times of the revolving speed of lower air blower, K is
It is preset be more than or equal to 1 constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810228934.9A CN110307643A (en) | 2018-03-20 | 2018-03-20 | A kind of gas heater and its method for controlling combustion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810228934.9A CN110307643A (en) | 2018-03-20 | 2018-03-20 | A kind of gas heater and its method for controlling combustion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110307643A true CN110307643A (en) | 2019-10-08 |
Family
ID=68073961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810228934.9A Withdrawn CN110307643A (en) | 2018-03-20 | 2018-03-20 | A kind of gas heater and its method for controlling combustion |
Country Status (1)
| Country | Link |
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| CN (1) | CN110307643A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111121278A (en) * | 2018-10-31 | 2020-05-08 | 青岛经济技术开发区海尔热水器有限公司 | Gas water heater and control method |
| CN112197431A (en) * | 2020-08-11 | 2021-01-08 | 华帝股份有限公司 | Gas water heater and control method thereof |
| CN113865109A (en) * | 2021-09-16 | 2021-12-31 | 广东万和新电气股份有限公司 | Control method and device of gas water heater, computer equipment and storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538174A (en) * | 2012-03-01 | 2012-07-04 | 艾欧史密斯(中国)热水器有限公司 | Low-noise gas instantaneous water heater |
| CN202648110U (en) * | 2012-06-08 | 2013-01-02 | 陈小刚 | Gas water heater |
| CN103727676A (en) * | 2013-12-02 | 2014-04-16 | 芜湖美的厨卫电器制造有限公司 | Gas water heater |
| CN206600917U (en) * | 2017-02-24 | 2017-10-31 | 广东万家乐燃气具有限公司 | A kind of gas heater of adjustable primary air amount |
| CN207073957U (en) * | 2017-07-25 | 2018-03-06 | 宁波方太厨具有限公司 | The anti-blast wave device of gas heater |
| CN208170751U (en) * | 2018-03-20 | 2018-11-30 | 宁波方太厨具有限公司 | A kind of gas heater |
-
2018
- 2018-03-20 CN CN201810228934.9A patent/CN110307643A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538174A (en) * | 2012-03-01 | 2012-07-04 | 艾欧史密斯(中国)热水器有限公司 | Low-noise gas instantaneous water heater |
| CN202648110U (en) * | 2012-06-08 | 2013-01-02 | 陈小刚 | Gas water heater |
| CN103727676A (en) * | 2013-12-02 | 2014-04-16 | 芜湖美的厨卫电器制造有限公司 | Gas water heater |
| CN206600917U (en) * | 2017-02-24 | 2017-10-31 | 广东万家乐燃气具有限公司 | A kind of gas heater of adjustable primary air amount |
| CN207073957U (en) * | 2017-07-25 | 2018-03-06 | 宁波方太厨具有限公司 | The anti-blast wave device of gas heater |
| CN208170751U (en) * | 2018-03-20 | 2018-11-30 | 宁波方太厨具有限公司 | A kind of gas heater |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111121278A (en) * | 2018-10-31 | 2020-05-08 | 青岛经济技术开发区海尔热水器有限公司 | Gas water heater and control method |
| CN112197431A (en) * | 2020-08-11 | 2021-01-08 | 华帝股份有限公司 | Gas water heater and control method thereof |
| CN113865109A (en) * | 2021-09-16 | 2021-12-31 | 广东万和新电气股份有限公司 | Control method and device of gas water heater, computer equipment and storage medium |
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Application publication date: 20191008 |
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