CN107238207A - The control method and gas heater of a kind of gas heater - Google Patents
The control method and gas heater of a kind of gas heater Download PDFInfo
- Publication number
- CN107238207A CN107238207A CN201610184048.1A CN201610184048A CN107238207A CN 107238207 A CN107238207 A CN 107238207A CN 201610184048 A CN201610184048 A CN 201610184048A CN 107238207 A CN107238207 A CN 107238207A
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- Prior art keywords
- electric heater
- heater
- gas
- gas heater
- water inlet
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Classifications
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- 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
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
-
- 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
-
- 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
- F24H2250/00—Electrical heat generating means
Abstract
The present invention relates to a kind of control method of gas heater and gas heater, the gas heater includes gas heating unit, and gas heating unit is connected with water inlet pipe and outlet pipe respectively；Water inlet pipe is provided with the electric heater quickly heated to water inlet.When the inflow temperature of gas heater is less than setting value, the electric heater started on water inlet pipe is quickly heated to water inlet, and adjusts the operating power of electric heater according to water inlet and/or leaving water temperature detected value, so that leaving water temperature reaches setting value.Method is set and controlled by above-mentioned, the electric heater realized is automatically controlled, and has been reached the purpose that auxiliary electrical heater is carried out to flowing through the water in water inlet pipe, the inflow temperature of gas heater is significantly improved, the power of gas heater is improved, the use environment of gas heater has been widened.Meanwhile, the present invention is simple in construction, and method is succinct, and effect significantly, is suitably promoted the use of.
Description
Technical field
The present invention relates to field of water heaters, more particularly to a kind of gas heater, more particularly to a kind of electrical heating auxiliary adjustment
The gas heater control method of leaving water temperature.
Background technology
In northern cold winter, user must buy liter number than larger gas heater, otherwise can be because of thermic load not
Leaving water temperature is enough caused not reach the situation of requirement.The reason for causing above mentioned problem is：Gas heater is reaching most
During big thermic load, if flow of inlet water continues to increase or inflow temperature continuation reduces or set temperature to continue elevated
Words, the gas heating unit of gas heater can be limited because of power, will be unable to provide the requirement that more heats meet user.
In view of this, it is special to propose the present invention.
The content of the invention
Object of the present invention is to provide a kind of control method of gas heater, to realize the automatic control to electric heater
System, to reach the purpose for automatically adjusting leaving water temperature, increasing gas water heater working power.
To realize goal of the invention, adopt the following technical scheme that：
A kind of control method of gas heater, when the inflow temperature of gas heater is less than setting value, starts water inlet pipe
On electric heater water inlet is quickly heated, and adjust electric heater according to water inlet and/or leaving water temperature detected value
Operating power, so that leaving water temperature reaches setting value.
Further, the inflow temperature according to gas heater, correspondence calls the operating power value of the electric heater prestored, order
Electric heater is operated with correspondence power.
Further, following steps are specifically included,
11), the upper electricity of gas heater start, when having detected water outlet current, gas heating unit is started working；
12), judge whether inflow temperature Tio is less than setting value Ts；If so, performing step 13)；If it is not, performing
Step 15)；
13), electric heater is started working, and the water inlet to gas heater is heated；
14), according to inflow temperature setting value Ts and inflow temperature detected value Tio, corresponding pre-stored values are called, and make electricity
Heater is heated with the operating power of correspondence pre-stored values；
15), gas heater keeps working condition persistently to be heated, after the water outlet current of gas heater is 0,
Stop gas heating unit and electric heater work.
Further, when setting value Ts- inflow temperatures Tio is more than 0, less than pre-stored values T, electric heater is with first grade
It is operated；
When setting value Ts- inflow temperatures Tio is more than T, less than n1*T, electric heater is operated with second gear；
When setting value Ts- inflow temperatures Tio is more than n1*T, less than n2*n1*T, electric heater carries out work with third gear
Make；
When setting value Ts- inflow temperatures Tio is more than n2*n1*T, less than n3*n2*n1*T, electric heater is with the 4th
Shelves are operated；
When setting value Ts- inflow temperatures Tio is more than n3*n2*n1*T, electric heater is operated with fifth speed；
Described n3, n2, n1 is respectively the preset constant more than 1, and described pre-stored values T is default temperature gap.
Further, the difference between the input voltage and/or input current and setting value Ts and inflow temperature T of electric heater
For one-to-one relationship；
The input voltage and/or input current of electric heater are with the increase of the difference between setting value Ts and inflow temperature T
It is incremented by, reduces and successively decrease.
Further, inflow temperature value Tio and leaving water temperature value Tso and gas heater water flow V are supervised in real time
Survey, and using following formula,
Qo=KV (Tso-Tio), described K are the conversion constant of setting；
Draw the real-time thermic load Qo of gas heating unit.
Further, in the electric heater course of work, judge whether the real-time thermic load of gas heating unit is less than maximum,
If so, then reducing the input power of electric heater and/or reducing gear.
Another object of the present invention is to provide a kind of gas heater of the above-mentioned control method of application, it includes gas heating
Unit, gas heating unit is connected with water inlet pipe and outlet pipe respectively；Water inlet pipe is provided with quickly to be heated to water inlet
Electric heater.
Further, water inlet pipe is provided with the inflow temperature sensor detected to inflow temperature, and outlet pipe is provided with to going out water temperature
Spend the leaving water temperature sensors detected.
Further, described electric heater includes being provided with resistance wire in water inlet pipe, and/or being coated on outside water inlet pipe.
Further, described electric heater is variable ratio frequency changer heater；It is preferred that, it is provided between electric heater and power supply
The adjusting means of input current and/or input voltage is adjusted, to adjust the input current and/or input voltage of electric heater；
Or, electric heater includes the gearshift for adjusting its operation range, to adjust the operation range of electric heater.
There is following beneficial effect compared with prior art in the present invention：
Method is set and controlled by above-mentioned, realizes and electric heater is controlled, reached to flowing through in water inlet pipe
The purpose that water is electrically heated, makes the inflow temperature of gas heater be significantly improved, to improve the work(of gas heater
Rate, makes leaving water temperature be more easy to reach setting value；And then so that user can select purchase to rise the less gas heater of number,
Leaving water temperature can still be met, ensure normally to use, make the purchase cost of user be reduced；Also so that gas heater
Use environment further widened.
Further, above-mentioned control method is passed through so that gas heater can be automatically controlled when inflow temperature is less than setting value
Electric heater starts, and to ensure that gas heater leaving water temperature reaches setting value, and then meets user's use requirement；And then
Realize the anticipation to combustion gas working condition, it is to avoid gas heating unit can not meet user and go out using, gas heater
The appearance of coolant-temperature gage situation not up to standard；The fuel gas buring efficiency of gas heater can also be made to maximize, and then realize can
The waste that user's request does not result in gas energy again is met, efficiency of combustion is improved.
In addition, the operation range and/or input power of electric heater and inflow temperature value are correspondingly arranged, with combustion gas heat
During hydrophone use, if occurring, environment temperature is raised or gas source changes or intake situations such as water temperature is raised
When, the heating gear and/or input power of correspondence reduction electric heater, it is to avoid fuel gas buring efficiency is too low, electric heater
The still generation of working condition, to reduce the energy loss of gas heater, improves the operating efficiency of gas heater.
Meanwhile, the present invention is simple in construction, and method is succinct, and effect significantly, is suitably promoted the use of.
Brief description of the drawings
The structural representation of gas heater in Fig. 1 embodiment of the present invention；
The control flow schematic diagram of gas heater in Fig. 2 embodiment of the present invention one；
The control flow schematic diagram of gas heater in Fig. 3 embodiment of the present invention two；
Main element explanation：1-water inlet pipe, 2-outlet pipe, 3-electric heater, 4-inflow temperature sensor, 5-
Leaving water temperature sensors, 6-water flow sensor, 10-gas heating unit.
Embodiment
The present invention is described in more detail with reference to embodiment.
As shown in figure 1, in the embodiment of the present invention, describing a kind of gas heater, it includes gas heating unit 10,
The water of inflow is heated with carrying out burning realization using combustion gas；Gas heating unit 10 is respectively with water inlet pipe 1 and going out
Water pipe 2 is connected, to cause cold water from the hot water after the inflow gas heating of water inlet pipe 1 unit 10, heating through outlet pipe 2
Flowed out from combustion gas heating unit 10.In the embodiment of the present invention, be additionally provided with the water inlet pipe 1 of gas heater to intake into
The electric heater 3 that row is quickly heated, to realize the auxiliary electrical heater intake to gas heater, to improve gas heater
Heating power, overcome the problem of outdoor environment is relatively low, gas heater leaving water temperature is not up to standard.
In the embodiment of the present invention, when the inflow temperature of gas heating unit 10 is less than setting value, start on water inlet pipe 1
3 pairs of water inlets of electric heater quickly heated, and according to inflow temperature detected value adjust electric heater 3 operating power,
So that leaving water temperature reaches setting value, reach that maximum, leaving water temperature are not up to the thermic load for avoiding gas heating unit
The appearance of setting value situation, and then reach anticipation and automatically adjust the purpose of gas heater leaving water temperature.
By above-mentioned setting, to control to start the electric heater to the quick heating of water, the water flowed through in water inlet pipe is added
Heat, makes the inflow temperature of gas heater be significantly improved, and to lift the power of gas heater, makes leaving water temperature more
Easily reach setting value；And then so that user can select purchase to rise the less gas heater of number, can still meet water outlet
Temperature, guarantee are normally used, and make the purchase cost of user be reduced；Also so that the use environment of gas heater is obtained
Further broadening.
Embodiment one
As shown in figure 1, in the present embodiment, described electric heater 3 includes being provided with water inlet pipe 1, and/or cladding
Resistance wire outside water inlet pipe 1, to be heated to the water inlet for flowing through water inlet pipe 1.Described electric heater 3 is variable
Frequency heater；It is preferred that, the tune provided with regulation input current and/or input voltage between electric heater 3 and power supply
Regulating device, to adjust the input current and/or input voltage of electric heater so that the input power of electric heater can be in line
Property change increasing or decreasing.
In the present embodiment, water inlet pipe 1 is provided with the inflow temperature sensor 4 detected to inflow temperature, outlet pipe 2 and set
There are the leaving water temperature sensors 5 detected to leaving water temperature.It is preferred that, the inflow temperature sensor 4 adds located at electricity
On the downstream water inlet pipe 1 of hot device 3, to be calculated using the detected value of inflow temperature sensor 4 and leaving water temperature sensors 5
The real-time thermic load of gas heating unit 10.It is further preferred that being set on the upstream water inlet pipe 1 of electric heater 3
Second inflow temperature sensor is set (not in accompanying drawing in first inflow temperature sensor, the downstream water inlet pipe of electric heater 3
In indicate), monitored in real time with the working condition to electric heater, it is to avoid electric heater overwork, damage after
The occurrence of can not finding in time.
As shown in Fig. 2 in the present embodiment, the course of work of gas heater specifically includes following steps,
01), the upper electricity of gas heater start, when having detected water outlet current, gas heating unit is started working；
02), judge whether inflow temperature Tio is less than setting value Ts；If so, performing step 03)；If it is not, performing
Step 05)；
03), electric heater is started working, and the water inlet to gas heater is heated；
04), according to inflow temperature setting value Ts and inflow temperature detected value Tio, corresponding pre-stored values are called, and make electricity
Heater is heated with the operating power of correspondence pre-stored values；
05), gas heater keeps working condition persistently to be heated, after the water outlet current of gas heater is 0,
Stop gas heating unit and electric heater work.
Pass through above-mentioned control method so that the electric heater of gas heater carries out real-time increasing or decreasing, makes electrical heating
The regulation of device input power is more sensitive, to improve the control accuracy of gas heater.
In the present embodiment, between the input voltage and/or input current and setting value Ts and inflow temperature T of electric heater
Difference is one-to-one relationship；The input voltage and/or input current of electric heater with setting value Ts and inflow temperature T it
Between difference increase and be incremented by, reduce and successively decrease so that the input voltage and/or input current of electric heater are with water inlet
The change of temperature and automatically adjust.
As shown in figure 1, in the present embodiment, water flow sensor 6 is provided with water inlet pipe 1, with to flowing through water inlet pipe
Water-carrying capacity detected, and is achieved in the purpose that is detected to gas heater water flow V.
In the present embodiment, in the step 05 of above-mentioned gas water heater working process) in, to inflow temperature value Tio and water outlet
Temperature value Tso and gas heater water flow V are monitored in real time, and the following formula of utilization, Qo=KV (Tso-Tio),
Described K is the conversion constant of setting；Draw the real-time thermic load Qo of gas heating unit；And judge gas heating unit
Real-time thermic load Qo whether be less than maximum, if so, the input power of electric heater is then reduced, until gas heating
The real-time thermic load Qo of unit reaches that the input power of maximum or electric heater is 0.So as to make in gas heater
During, it is to avoid because working environment changes, cause fuel gas buring insufficient and electric heater still continuous firing situation
Generation, to reduce the use cost of gas heater, improve fuel gas buring efficiency.
In the present embodiment, in the step 05 of above-mentioned gas water heater working process) in, inflow temperature detected value Tio is with setting
Definite value Ts is compared in real time, to draw the most suitable real-time input voltage and/or input current of electric heater, is reached to electricity
The purpose that the operating power of heater is adjusted in real time, and then realize the mesh that electric heater is operated with most suitable operating mode
's.
Embodiment two
In the present embodiment, described electric heater 3 includes being provided with water inlet pipe 1, and/or is coated on outside water inlet pipe 1
Resistance wire.Electric heater 3 includes the gearshift for adjusting its operation range, automatically and/or manually to adjust electrical heating
The operation range of device, realizes the purpose for automatically adjusting electric heater mode of operation and then adjusting gas heater leaving water temperature.
In the present embodiment, water inlet pipe 1 is provided with the inflow temperature sensor 4 detected to inflow temperature, outlet pipe 2 and set
There are the leaving water temperature sensors 5 detected to leaving water temperature.It is preferred that, the inflow temperature sensor 4 adds located at electricity
On the downstream water inlet pipe 1 of hot device 3, to be calculated using the detected value of inflow temperature sensor 4 and leaving water temperature sensors 5
The real-time thermic load of gas heating unit.It is further preferred that setting first on the upstream water inlet pipe 1 of electric heater 3
The second inflow temperature sensor is set (to note not in the drawings in inflow temperature sensor, the downstream water inlet pipe of electric heater 3
It is bright), monitored in real time with the working condition to electric heater, it is to avoid can not after electric heater overwork, damage
The occurrence of finding in time.
As shown in figure 3, in the present embodiment, the course of work of gas heater specifically includes following steps,
1), the upper electricity of gas heater start, when having detected water outlet current, gas heating unit is started working；
2), judge whether inflow temperature Tio is less than setting value Ts；If so, performing step 3)；If it is not, performing step
It is rapid 8)；
3), electric heater is started working, and the water inlet to gas heater is heated；
4), judge whether inflow temperature Tio- setting values Ts is less than pre-stored values T, if so, then performing step 5)；If
No, then electric heater is operated with first grade；
5), judge whether inflow temperature Tio- setting values Ts is less than pre-stored values n1*T, if so, then performing step 6)；
If it is not, then electric heater is operated with second gear；
6), judge whether inflow temperature Tio- setting values Ts is less than pre-stored values n2*n1*T, if so, then performing step 7)；
If it is not, then electric heater is operated with third gear；
7), judge whether inflow temperature Tio- setting values Ts is less than pre-stored values n3*n2*n1*T, if so, then electrical heating
Device is operated with fifth speed；If it is not, then electric heater is operated with fourth speed；
8), gas heater keeps working condition persistently to be heated, after the water outlet current of gas heater is 0,
Stop gas heating unit and electric heater work.
Pass through above-mentioned control method so that gas heater be able to can not be met under user's behaviour in service in gas heating unit,
Automatic controlled electric heater starts, to ensure that gas heater leaving water temperature reaches setting value, and then meet user to use to want
Ask；The fuel gas buring efficiency of gas heater can also be made to maximize, and then realized and can be met user's request and again will not
The waste of gas energy is caused, efficiency of combustion is improved.
In the present embodiment, described n3, n2, n1 is respectively the preset constant more than 1, and described pre-stored values T is pre-
If temperature gap.In the present embodiment, first grade of operating power of electric heater is less than second gear operating power, second gear
Operating power is less than third gear operating power, third gear operating power and is less than fourth speed operating power, fourth speed operating power
Less than fifth speed operating power.So as to, with the lapse of temperature of water inlet, make the operation range of gas heater gradually increase,
To improve the power of electric heater, automatically adjusting for gas heater leaving water temperature is realized.
In the present embodiment, in the step 8 of above-mentioned gas water heater working process) in, at interval of certain time t, order electricity
Heater judges whether the leaving water temperature of gas heater reaches setting value Ts with the i-th -1 grade work；If so, then electric
Heater is with current the i-th -1 grade continuous firing；If it is not, then electric heater recovers to i-th grade of continuous firing.So as to,
During gas heater use, if occurring the feelings such as environment temperature rise or gas source change or water inlet water temperature rise
When condition occurs, the heating gear of correspondence reduction electric heater, it is to avoid the occurrence of fuel gas buring efficiency is too low improves combustion
The operating efficiency of gas water heater.
In the present embodiment, when gas heater is stopped using, the operation range before being stopped to electric heater carries out real
When store, and make electric heater next time startup when, call the storage value be i values, make electric heater with corresponding i-th grade
Work is actuated for, to cause gas heater to be correspondingly arranged for the use habit of user.
In the present embodiment, outside the control panel or gas heater of gas heater provided with corresponding control button or
Button, allows the manually operated keys or buttons of user, to connect the relay in controller, makes electric heater start,
To carry out heating quick, the inflow temperature value of the gas heating unit of raising gas heater to the water inlet of inflow, in order to
User oneself chooses whether to need to start electric heater progress auxiliary heating.
Embodiment in above-described embodiment can be further combined or replace, and embodiment is only to the excellent of the present invention
Select embodiment to be described, not the spirit and scope of the present invention are defined, do not depart from design philosophy of the present invention
Under the premise of, the various changes and modifications that professional and technical personnel in the art make to technical scheme belong to this
The protection domain of invention.
Claims (10)
1. a kind of control method of gas heater, it is characterised in that：It is less than setting in the inflow temperature of gas heater
During value, the electric heater started on water inlet pipe is quickly heated to water inlet, and according to water inlet and/or leaving water temperature detection
The operating power of value adjustment electric heater, so that leaving water temperature reaches setting value.
2. the control method of gas heater according to claim 1, it is characterised in that：According to gas heater
Inflow temperature, correspondence calls the operating power value of the electric heater prestored, makes electric heater be operated with correspondence power.
3. the control method of gas heater according to claim 2, it is characterised in that：Specifically include following steps,
11), the upper electricity of gas heater start, when having detected water outlet current, gas heating unit is started working；
12), judge whether inflow temperature Tio is less than setting value Ts；If so, performing step 13)；If it is not, performing
Step 15)；
13), electric heater is started working, and the water inlet to gas heater is heated；
14), according to water outlet temperature setting value and inflow temperature detected value, corresponding pre-stored values are called, and make electric heater
Heated with the operating power of correspondence pre-stored values；
15), gas heater keeps working condition persistently to be heated, after the water outlet current of gas heater is 0,
Stop gas heating unit and electric heater work.
4. the control method of gas heater according to claim 3, it is characterised in that：When setting value Ts- enters water temperature
When spending Tio more than 0, less than pre-stored values T, electric heater is operated with first grade；
When setting value Ts- inflow temperatures Tio is more than T, less than n1*T, electric heater is operated with second gear；
When setting value Ts- inflow temperatures Tio is more than n1*T, less than n2*n1*T, electric heater carries out work with third gear
Make；
When setting value Ts- inflow temperatures Tio is more than n2*n1*T, less than n3*n2*n1*T, electric heater is with the 4th
Shelves are operated；
When setting value Ts- inflow temperatures Tio is more than n3*n2*n1*T, electric heater is operated with fifth speed；
Described n3, n2, n1 is respectively the preset constant more than 1, and described pre-stored values T is default temperature gap.
5. the control method of gas heater according to claim 3, it is characterised in that：The input electricity of electric heater
Press and/or the difference between input current and setting value Ts and inflow temperature T is one-to-one relationship；
The input voltage and/or input current of electric heater are with the increase of the difference between setting value Ts and inflow temperature T
It is incremented by, reduces and successively decrease.
6. according to the control method of any gas heater of claim 1 to 5, it is characterised in that：To entering water temperature
Angle value Tio and leaving water temperature value Tso and gas heater water flow V are monitored in real time, and using following formula,
Qo=KV (Tso-Tio), described K are the conversion constant of setting；
Draw the real-time thermic load Qo of gas heating unit.
7. the control method of gas heater according to claim 6, it is characterised in that：It is worked in electric heater
Cheng Zhong, judges whether the real-time thermic load of gas heating unit is less than maximum, if so, then reducing the input of electric heater
Power and/or reduction gear.
8. a kind of gas heater of any control method of application the claims 1 to 7, it includes combustion gas and added
Hot cell, gas heating unit is connected with water inlet pipe and outlet pipe respectively；It is characterized in that：Water inlet pipe is provided with to entering
The electric heater that water is quickly heated.
9. a kind of gas heater according to claim 8, it is characterised in that：Water inlet pipe is provided with to entering water temperature
The inflow temperature sensor of detection is spent, outlet pipe is provided with the leaving water temperature sensors detected to leaving water temperature.
10. a kind of gas heater according to claim 8, it is characterised in that：Described electric heater is variable
Frequency heater；It is preferred that, the regulation provided with regulation input current and/or input voltage between electric heater and power supply
Device, to adjust the input current and/or input voltage of electric heater；
Or, electric heater includes the gearshift for adjusting its operation range, to adjust the operation range of electric heater.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610184048.1A CN107238207B (en) | 2016-03-28 | 2016-03-28 | Control method of gas water heater and gas water heater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610184048.1A CN107238207B (en) | 2016-03-28 | 2016-03-28 | Control method of gas water heater and gas water heater |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108981187A (en) * | 2018-07-16 | 2018-12-11 | 珠海格力电器股份有限公司 | Water heater and its temperature control method of water, device, computer equipment and storage medium |
| CN109405265A (en) * | 2018-11-05 | 2019-03-01 | 浙江德凌电器有限公司 | Fire electric heater |
| CN110595071A (en) * | 2019-09-18 | 2019-12-20 | 深圳市合信达控制系统有限公司 | Control method of household appliance and household appliance |
| CN111648083A (en) * | 2019-03-04 | 2020-09-11 | 青岛海尔洗衣机有限公司 | Ultrasonic washing device, control method and clothes treatment equipment |
| CN112556167A (en) * | 2020-11-23 | 2021-03-26 | 重庆海尔热水器有限公司 | Electric auxiliary heating type gas water heater |
| CN113433988A (en) * | 2021-06-23 | 2021-09-24 | 深圳安吉尔饮水产业集团有限公司 | Control method and device of heating system, heating system and storage medium |
| CN113750786A (en) * | 2021-09-17 | 2021-12-07 | 宁波久丰热电有限公司 | SCR reaction system based on electrostatic field coupling flue gas denitration |
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