CN114992871A - Control method of gas water heater and gas water heater - Google Patents
Control method of gas water heater and gas water heater Download PDFInfo
- Publication number
- CN114992871A CN114992871A CN202110895854.0A CN202110895854A CN114992871A CN 114992871 A CN114992871 A CN 114992871A CN 202110895854 A CN202110895854 A CN 202110895854A CN 114992871 A CN114992871 A CN 114992871A
- Authority
- CN
- China
- Prior art keywords
- water
- water heater
- heater
- gas
- control method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
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
- F24H9/20—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
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
- F24H1/107—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium 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)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Abstract
The invention discloses a control method of a gas water heater and the gas water heater, wherein the control method comprises the following steps of S1, igniting the water heater; s2, detecting water flow parameters of the water heater, and judging to stop water consumption according to the water flow parameters; and S3, controlling the hot water in the water outlet pipe to circulate back into the water heater, and keeping the water heater heating continuously. According to the invention, after the water heater is ignited, the water flow parameter of the water heater is detected, and when the water consumption of a user is judged to be stopped according to the water flow parameter, hot water in the water outlet pipe is immediately controlled to circulate back to the water heater, so that the water inlet flow in the water heater is ensured to be larger than the water inlet flow after ignition, the water heater is prevented from being stopped, the water heater is enabled to keep heating operation all the time, the problem of sudden cold and sudden heat of outlet water temperature caused by secondary startup is avoided, the outlet water temperature of the water heater is stable, the existing zero-cold-water heater can be utilized, no additional structural transformation is needed, the structure is simple, the cost is low, and the use is convenient.
Description
Technical Field
The invention belongs to the field of water heaters, and particularly relates to a control method of a gas water heater and the gas water heater.
Background
In the prior art, after the gas water heater is closed and water is cut off, heat remains in the water heater, so that the water temperature of a certain section of a water pipe of the water heater is very high, and high-temperature hot water in the pipe flows out when the water heater is turned on again in a short time. In addition, when the water heater is started again, the water heater needs to be ignited and heated after a series of actions of water flow are detected, a period of time is needed from the time when the water flow signal is received by the water heater until the water outlet temperature of the water heater reaches a set value, and the flowing water flows out of the water valve when the flowing water is not heated in the period of time, so that a certain amount of cold water sections are formed. This will cause a part of cold water to flow out, and the cold water will be suddenly heated, i.e. the secondary start-up has "entrained water".
Especially when the water using point is far away from the water heater, the waiting time is longer. In the process of water supply for a user, after water supply is suspended, the water heater can be stabilized to the set bathing temperature after being restarted for a period of time, so that the bathing comfort and experience of the user are seriously influenced.
The existing zero-cold-water gas water heater aims at cold water in a pipeline, water in the pipeline is heated through single or timed circulation, the waiting time of hot water is shortened, but the single or timed circulation only aims at the scene of starting up for the first time, and the 'raw water' caused by secondary starting up cannot be avoided for the short start-up and stop of high frequency in daily water.
The present invention has been made in view of this point.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art, and the invention aims to provide the control method of the gas water heater, when a user stops using water, hot water in the water outlet pipe is controlled to be recycled into the water heater, the water heater is kept to operate continuously without stopping, the problem of generating raw water by igniting again after stopping does not exist, and the water outlet temperature of the water heater is kept stable.
Another objective of the present invention is to provide a gas water heater, which has a stable outlet water temperature.
In order to solve the technical problems, the invention adopts the technical scheme that: there is provided a control method of a gas water heater, comprising the steps of,
s1, igniting the water heater;
s2, detecting water flow parameters of the water heater, and judging to stop water consumption according to the water flow parameters;
and S3, controlling the hot water in the water outlet pipe to circulate back to the water heater, and keeping the water heater heating continuously.
According to the invention, after the water heater is ignited, the water flow parameter of the water heater is detected, and when the water use of a user is stopped according to the water flow parameter, the hot water in the water outlet pipe is immediately controlled to circulate back to the water heater, so that the water inlet flow in the water heater is ensured to be larger than the ignition water inlet flow, the water heater is prevented from being stopped, the water heater is enabled to keep heating operation all the time, the problem that the water outlet temperature is suddenly cooled and suddenly heated due to secondary startup is avoided, the water outlet temperature of the water heater is stable, the existing zero-cold-water heater can be utilized, no additional structural modification is needed, the structure is simple, the cost is low, and the use is convenient.
Further, in the step S2, it is determined whether the water outlet flow V of the water heater is smaller than the preset value V1 by detecting the water outlet flow V of the water heater in unit time, and if so, it is determined that the user stops using water.
Further, in the step S2, the inflow water rate V of the water heater is detected to determine whether the inflow water rate V is smaller than the preset value V1, and if so, it is determined that the user stops using water.
Further, in the step S2, when the water inlet flow rate or the water outlet flow rate V of the water heater is less than 2L/min, it is determined that the user stops using water.
Further, in the step S2, detecting the water outlet flow V of the water heater in unit time, determining whether the water outlet flow reduction value Δ V of the water heater in time ta is greater than or equal to a preset value C, if so, determining that the user stops using water, wherein ta is greater than 0S and less than or equal to 1S;
preferably, said ta is 0.5 s.
Further, in step S3, the hot water in the water outlet pipe is controlled to circulate back into the water heater, so as to reduce the heating power of the water heater and keep the preset outlet water temperature of the water heater unchanged.
Further, the following steps are also included after the step S3:
s4, detecting the water outlet flow V of the water heater;
and S5, judging whether the water outlet flow V of the water heater is greater than or equal to a preset value V1, if so, controlling to stop the hot water in the water outlet pipe from being recycled back into the water heater.
The invention monitors the water outlet flow in real time, judges whether a user stops using water or not through the water outlet flow, performs hot water circulation when the water use is stopped, and recycles the hot water in the water outlet pipe back to the water heater, thereby ensuring that the water heater is in an open state without ignition again; after the water circulation is started, if the water outlet flow V of the water heater is greater than or equal to the preset value V1, the user uses water again in the water circulation process, the hot water is controlled to stop being recycled back into the water heater, and the water heater is switched to a normal working state, so that the energy consumption of the water heater is reduced, and the running cost is reduced.
Further, in the step S5, it is determined whether the water outlet flow V of the water heater is greater than or equal to a preset value V1, and if not, the following steps are executed;
s6, detecting the time t of hot water circulation in the water outlet pipe;
s7, judging whether the hot water circulation time t in the water outlet pipe is larger than or equal to the preset time t1, if so, controlling to stop the hot water in the water outlet pipe from circulating back into the water heater.
Further, in the step S7, it is determined whether the time t of the hot water circulation in the water outlet pipe is greater than or equal to the preset time t1, and if not, the step S6 is executed.
The invention also provides a gas water heater and a control method adopting any one of the gas water heaters.
After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.
(1) According to the invention, after the water heater is ignited, the water flow parameter of the water heater is detected, and when the water use of a user is stopped according to the water flow parameter, the hot water in the water outlet pipe is immediately controlled to circulate back to the water heater, so that the water inlet flow in the water heater is ensured to be larger than the ignition water inlet flow, the water heater is prevented from being stopped, the water heater is enabled to keep heating operation all the time, the problem that the water outlet temperature is suddenly cooled and suddenly heated due to secondary startup is avoided, the water outlet temperature of the water heater is stable, the existing zero-cold-water heater can be utilized, no additional structural modification is needed, the structure is simple, the cost is low, and the use is convenient.
(2) The invention monitors the water outlet flow in real time, judges whether a user stops using water or not through the water outlet flow, performs hot water circulation when the water use is stopped, and recycles the hot water in the water outlet pipe back to the water heater, thereby ensuring that the water heater is in an open state without ignition again; after the water circulation is started, if the water outlet flow V of the water heater is greater than or equal to the preset value V1, the user uses water again in the water circulation process, the hot water is controlled to stop being recycled back into the water heater, and the water heater is switched to a normal working state, so that the energy consumption of the water heater is reduced, and the running cost is reduced.
(3) After the hot water circulation is started, if the water outlet flow V of the water heater is smaller than the preset value V1, the user does not use water again in the hot water circulation process. And detecting the time t of hot water circulation, and when the time t of hot water circulation is more than or equal to preset time t1, the user probably finishes water consumption, at the moment, the control stops hot water circulation, and the water heater is switched to a normal working state, so that the energy consumption of the water heater is reduced, and the running cost is reduced.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a flow chart of a gas water heater control method of the present invention;
FIG. 2 is a flow chart of a gas water heater control method of the present invention;
FIG. 3 is a schematic diagram of the connection of parts of a gas water heater according to the present invention.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 2, the control method of the gas water heater of the present invention includes the steps of,
s1, igniting the water heater;
s2, detecting water flow parameters of the water heater, and judging to stop water consumption according to the water flow parameters;
and S3, controlling the hot water in the water outlet pipe to circulate back into the water heater, and keeping the water heater heating continuously.
According to the invention, after the water heater is ignited, the water flow parameter of the water heater is detected, and when the water use of a user is stopped according to the water flow parameter, the hot water in the water outlet pipe is immediately controlled to circulate back to the water heater, so that the water inlet flow in the water heater is ensured to be larger than the ignition water inlet flow, the water heater is prevented from being stopped, the water heater is enabled to keep heating operation all the time, the problem that the water outlet temperature is suddenly cooled and suddenly heated due to secondary startup is avoided, the water outlet temperature of the water heater is stable, the existing zero-cold-water heater can be utilized, no additional structural modification is needed, the structure is simple, the cost is low, and the use is convenient.
Preferably, the gas water heater has a zero-cold-water function, is a zero-cold-water gas water heater, and can utilize the zero-cold-water function of the water heater to circulate hot water in the water outlet pipe back into the water heater through the water return pipe and the water inlet pipe when controlling to circulate hot water in the water outlet pipe back into the water heater, so that the gas water heater is kept continuously supplied with water, and the gas water heater is prevented from being stopped.
The zero-cold water function is to circulate water in a water outlet pipe of the water heater back to the water heater for reheating, so that the hot water is prevented from being cooled after a long time in a hot water pipe, and hot water is discharged when a user uses water.
In one embodiment, in the step S2, it is determined whether the water outlet flow V of the water heater is less than a preset value V1 by detecting the water outlet flow V of the water heater per unit time, and if so, it is determined that the user stops using water.
In the step S2, it is determined whether the water outlet flow V per unit time of the water heater is smaller than a preset value V1, and if not, the water heater is controlled to keep running.
In another embodiment, in the step S2, the inflow water rate V of the water heater is detected to determine whether the inflow water rate V is smaller than the preset value V1, and if so, it is determined that the user stops using water.
In the step S2, it is determined whether the water inlet flow V per unit time of the water heater is smaller than a preset value V1, and if not, the water heater is controlled to keep running. When the water inlet flow V in the unit time of the water heater is larger than or equal to the preset value V1, it indicates that the water heater can normally operate because the water is not temporarily shut down in the process of using the water heater by a user.
Preferably, in the step S2, when the water inlet flow rate or the water outlet flow rate V of the water heater is less than 2L/min, it is determined that the user stops using water.
In the invention, the water outlet flow V is monitored in real time, one of the judgment conditions for flameout of the gas water heater is the water flow, and the water heater cannot be flameout when the monitored water outlet flow is not lower than V1. Also, if the water-using end is far from the water heater, there will be a time difference between the user shutting down the water heater and turning off the water heater.
In another embodiment, in step S2, the water outlet flow rate V of the water heater per unit time is detected, whether the water outlet flow rate reduction value Δ V of the water heater within time ta is greater than or equal to a preset value C is determined, if yes, it is determined that the user stops using water, and 0S < ta is less than or equal to 1S.
Preferably, the time ta is in the range of 0.3s < ta ≦ 0.8 s. More preferably, the time ta is 0.5 s.
If the user closes the water instantly, because the water using end is far away from the water heater, a time difference exists between the water closing of the user and the flameout of the water heater, the user stops using the water according to the time difference, hot water in the water outlet pipe is recycled into the water heater, the water heater can be prevented from being stopped, and raw water clamping caused by secondary starting of the water heater is avoided.
The gas water heater can also directly detect whether the user stops using water or not by arranging sensors such as sound, infrared and image.
Further, in step S3, the hot water in the water outlet pipe is controlled to circulate back to the water heater, so as to reduce the heating power of the water heater and keep the preset outlet water temperature of the water heater unchanged.
The water heater comprises a circulating water pump and a gas proportional valve. And the circulating water pump is used for circulating the water in the hot water pipe back to the water heater for reheating. The gas proportional valve is used for controlling the combustion quantity of gas and adjusting the heating power of the water heater.
When the user stops using water, the circulating water pump is controlled to work to circulate back water, and the temperature of the water in the circulating back gas water heater is higher than that of normal inlet water due to the fact that the temperature of the hot water in the water outlet pipe is high, so that the opening degree of the gas proportional valve is controlled to be reduced, the heating efficiency of the gas water heater can be reduced, the outlet water temperature of the water heater is kept to be the preset outlet water temperature, the outlet water temperature of the gas water heater is stable, and the water temperature of the user cannot be suddenly increased or decreased when the user uses water.
According to the invention, through the hot water in the water outlet pipe to be recycled into the water heater, when the recycled water needs to be recycled, the water in the circulating pipeline of the circulating water pump is controlled, the gas proportional valve is switched to a set load, the heating power is reduced, meanwhile, the load is only used for maintaining the temperature of the outlet water to be constant, the energy consumption is not high, the gas water heater does not need to be ignited again, the outlet water temperature is stable, and the user experience is good.
As shown in fig. 2, the following steps are further included after the step S3:
s4, detecting the water outlet flow V of the water heater;
and S5, judging whether the water outlet flow V of the water heater is greater than or equal to a preset value V1, if so, controlling to stop the hot water in the water outlet pipe from being recycled back into the water heater.
The invention monitors the water outlet flow in real time, judges whether a user stops using water or not through the water outlet flow, performs hot water circulation when the water use is stopped, and recycles the hot water in the water outlet pipe back to the water heater, thereby ensuring that the water heater is in an open state without ignition again; after the water circulation is started, if the water outlet flow V of the water heater is greater than or equal to the preset value V1, the user uses water again in the water circulation process, the hot water is controlled to stop being recycled back into the water heater, and the water heater is switched to a normal working state, so that the energy consumption of the water heater is reduced, and the running cost is reduced.
When the user uses water again, the water heater stops hot water circulation, the opening of the proportional valve of the water heater is adjusted to the normal opening before hot water circulation, the heating power of the water heater is increased, and the water use of the user is guaranteed.
Further, in the step S5, it is determined whether the water outlet flow V of the water heater is greater than or equal to a preset value V1, and if not, the following steps are executed;
s6, detecting the time t of hot water circulation in the water outlet pipe;
s7, judging whether the hot water circulation time t in the water outlet pipe is larger than or equal to the preset time t1, if so, controlling to stop the hot water in the water outlet pipe from circulating back into the water heater.
The invention monitors the water outlet flow in real time, judges whether a user stops using water or not through the water outlet flow, starts hot water circulation when the water use is stopped, and circulates the water in the outlet pipe back to the water heater, thereby ensuring that the water heater is in an open state without re-ignition.
After the hot water circulation is started, if the water outlet flow V of the water heater is smaller than a preset value V1, it indicates that the user does not use water again in the water circulation process. And detecting the time t of hot water circulation, and when the time t of hot water circulation is more than or equal to the preset time t1, stopping hot water circulation by controlling the user possibly after water is used, switching the water heater to a normal working state, reducing the energy consumption of the water heater and reducing the running cost.
Preferably, the t1 is more than or equal to 1min and less than or equal to 10 min.
In actual use, the time interval of the secondary water supply of the user is not too long, for example, the preset time T is within 2-5 minutes, and the requirement of the user for continuing water supply after smearing the washing and protecting product in the middle of bathing can be met.
In the step S7, it is determined whether the time t of the hot water circulation in the water outlet pipe is greater than or equal to the preset time t1, and if not, the step S6 is executed.
When the hot water circulation time t in the water outlet pipe is less than the preset time t1, the hot water circulation time t in the water outlet pipe of the water heater is detected again until the hot water circulation time in the water outlet pipe of the water heater reaches the preset time t1, and the hot water circulation is stopped.
The invention also provides a gas water heater, which adopts the control method of the gas water heater. The gas water heater is a zero-cold-water gas water heater.
As shown in fig. 3, the gas water heater includes a water flow sensor, a controller, a circulating water pump and a gas proportional valve. The controller is respectively connected with the water flow sensor, the circulating water pump and the fuel gas proportional valve.
Specifically, a water return pipe is arranged between a water outlet pipe and a water inlet pipe of the gas water heater to form a circulating pipeline. The circulating water pump is arranged on the circulating pipeline. The water flow sensor is arranged on the water outlet pipe.
The gas water heater is ignited to work, the water flow sensor feeds back the water outlet flow to the controller in real time, the controller analyzes the water outlet flow, and when the water outlet flow is larger than or equal to a preset condition, hot water circulation is not carried out.
When the water outlet flow is smaller than the preset value V1 or the water outlet flow reduction value in unit time is larger than the preset value C, the controller judges that the user stops using water, controls the circulating water pump to work to circulate backwater, and circulates the hot water in the water outlet pipe of the water heater back to the water heater through the backwater pipe and the water inlet pipe.
The gas proportional valve is used for controlling the gas output pressure by adjusting the current of the proportional valve and controlling the opening of the valve, thereby controlling the size of combustion flame and achieving the purpose of adjusting the water temperature.
When the user stops using water, the circulating water pump is controlled to work to circularly return water, and the temperature of the water in the circular return gas water heater is higher than that of the normal inlet water due to the fact that the temperature of the water in the water outlet pipe is high, so that the opening degree of the gas proportional valve is controlled to be reduced, the heating efficiency of the gas water heater can be reduced, the outlet water temperature of the water heater is kept to be the preset outlet water temperature, the outlet water temperature of the gas water heater is stable, and the temperature of the user cannot be suddenly increased or decreased when the user uses water.
The above embodiments are only preferred embodiments of the present invention, and not intended to limit the present invention in any way, and although the present invention has been disclosed by the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make various changes and modifications to the equivalent embodiments by using the technical contents disclosed above without departing from the technical scope of the present invention, and the embodiments in the above embodiments can be further combined or replaced, but any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention still fall within the technical scope of the present invention.
Claims (10)
1. A control method of a gas water heater is characterized by comprising the following steps: comprises the following steps of (a) carrying out,
s1, igniting the water heater;
s2, detecting water flow parameters of the water heater, and judging to stop using water according to the water flow parameters;
and S3, controlling the hot water in the water outlet pipe to circulate back into the water heater, and keeping the water heater heating continuously.
2. The control method of a gas water heater according to claim 1, wherein: in the step S2, it is determined whether the water flow V of the water heater is smaller than the preset value V1 by detecting the water flow V of the water heater in unit time, and if so, it is determined that the user stops using water.
3. The control method of a gas water heater according to claim 1, wherein: in the step S2, the inflow rate V of the water heater in unit time is detected to determine whether the inflow rate V of the water heater is smaller than a preset value V1, and if so, it is determined that the user stops using water.
4. A control method of a gas water heater according to any one of claims 2-3, characterized in that: in the step S2, when the water inlet flow rate or the water outlet flow rate V of the water heater is less than 2L/min, it is determined that the user stops using water.
5. The control method of a gas water heater according to claim 1, wherein: in the step S2, detecting the water outlet flow V of the water heater in unit time, and determining whether the water outlet flow reduction value Δ V of the water heater in time ta is greater than or equal to a preset value C, if so, determining that the user stops using water, wherein ta is greater than 0S and less than or equal to 1S;
preferably, said ta is 0.5 s.
6. The control method of a gas water heater according to any one of claims 1 to 5, wherein: in the step S3, the hot water in the water outlet pipe is controlled to circulate back to the water heater, so as to reduce the heating power of the water heater and keep the preset outlet water temperature of the water heater unchanged.
7. The control method of a gas water heater according to any one of claims 1 to 6, wherein: the following steps are also included after the step S3:
s4, detecting the water outlet flow V of the water heater;
and S5, judging whether the water outlet flow V of the water heater is greater than or equal to a preset value V1, if so, controlling to stop the hot water in the water outlet pipe from being recycled back into the water heater.
8. The control method of a gas water heater according to claim 7, wherein: in the step S5, it is determined whether the water outlet flow V of the water heater is greater than or equal to a preset value V1, if not, the following steps are executed;
s6, detecting the time t of hot water circulation in the water outlet pipe;
s7, judging whether the hot water circulation time t in the water outlet pipe is larger than or equal to the preset time t1, if so, controlling to stop the hot water in the water outlet pipe from circulating back into the water heater.
9. The control method of a gas water heater according to claim 8, wherein: in the step S7, it is determined whether the time t of the hot water circulation in the water outlet pipe is greater than or equal to the preset time t1, and if not, the step S6 is executed.
10. A gas water heater, its characterized in that: a control method using the gas water heater as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110895854.0A CN114992871A (en) | 2021-08-05 | 2021-08-05 | Control method of gas water heater and gas water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110895854.0A CN114992871A (en) | 2021-08-05 | 2021-08-05 | Control method of gas water heater and gas water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114992871A true CN114992871A (en) | 2022-09-02 |
Family
ID=83018682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110895854.0A Pending CN114992871A (en) | 2021-08-05 | 2021-08-05 | Control method of gas water heater and gas water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114992871A (en) |
-
2021
- 2021-08-05 CN CN202110895854.0A patent/CN114992871A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110017612B (en) | Constant temperature control method of gas water heater | |
| US8165726B2 (en) | Water heater energy savings algorithm for reducing cold water complaints | |
| US8662022B2 (en) | Water heater | |
| CN110398055A (en) | Zero-cold-water gas water heater capable of limiting preheating temperature and control method thereof | |
| CN112361611B (en) | Gas water heater control method, device and system and gas water heater | |
| CN110940094B (en) | Gas water heater control method and gas water heater | |
| CN111365855A (en) | Gas water heater capable of realizing multistage current limiting and temperature control and control method thereof | |
| CN110220313A (en) | Gas water heater control method and gas water heater | |
| CN111322764A (en) | Gas water heater with rapid heating function and rapid heating control method | |
| CN113310218A (en) | Gas water heater control method and gas water heater | |
| CN114992871A (en) | Control method of gas water heater and gas water heater | |
| CN114857783B (en) | Control method capable of setting different power output of heating and bathroom and heating water heater | |
| TWI674373B (en) | Heat storage type electric water heater with energy-saving and hot water supply method thereof | |
| CN112032997B (en) | Gas water heater and control method thereof | |
| CN212457438U (en) | Gas water heater capable of multi-stage current-limiting temperature control | |
| CN113983694B (en) | Control method for minimum load matching start flow of gas water heater | |
| CN113847742A (en) | Control method for low-noise operation of water heater | |
| JPH0518605A (en) | Method of supply-hot-water temperature control in automatic supply-hot-water system | |
| JP2004036980A (en) | Hot-water supply system | |
| CN110953727A (en) | Constant temperature control method of gas water heater | |
| CN114636248B (en) | Gas water heater with scalding prevention function and control method thereof | |
| CN111121300A (en) | Constant temperature control method for gas heating water heater | |
| US20230288075A1 (en) | Improved control system for hydronic heater and method of operating same | |
| JP3569121B2 (en) | Water heater | |
| JP3273000B2 (en) | Water heater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |