CN112833550A - Gas water heater and control method thereof - Google Patents
Gas water heater and control method thereof Download PDFInfo
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- CN112833550A CN112833550A CN202010895894.0A CN202010895894A CN112833550A CN 112833550 A CN112833550 A CN 112833550A CN 202010895894 A CN202010895894 A CN 202010895894A CN 112833550 A CN112833550 A CN 112833550A
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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
- F24H9/12—Arrangements for connecting heaters to circulation pipes
- F24H9/13—Arrangements for connecting heaters to circulation pipes for water heaters
- F24H9/139—Continuous flow heaters
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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
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
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- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses a gas water heater and a control method thereof, wherein the gas water heater is provided with a water return pipeline for controlling the return water from a hot water pipe to a cold water pipe; the control method comprises the following steps: detecting the water flow of the gas water heater in the using process; and judging whether the water flow of the gas water heater is smaller than a first set flow, if so, controlling the water return pipeline to be communicated, and enabling the gas water heater to be in a combustion state. The invention avoids the situation that water is suddenly cooled and suddenly heated when a user boils water again after turning off water by controlling the gas water heater to continuously burn in the midway water turning off process.
Description
Technical Field
The invention belongs to the technical field of household appliances, and particularly relates to a gas water heater and a control method thereof.
Background
The gas water heater uses gas as fuel, and transfers heat to cold water flowing through the heat exchanger in a gas combustion heating mode so as to achieve the purpose of preparing hot water.
The gas water heater has the following advantages: the water heater has the advantages of high heat efficiency, high heating speed, instant heating, large water yield, stable temperature, less scale formation, small occupied area, stable temperature regulation without water quantity control, and continuous use by multiple people, thereby having a batch of fixed consumers.
In order to avoid the damage to users caused by faults such as gas leakage or insufficient combustion, the household gas water heater is generally installed in a living balcony or a kitchen with good ventilation conditions, but the water for bathing is in a bathroom, so that a long pipeline is arranged from the living balcony or the kitchen to the bathroom, and the pipeline is generally 10-30 meters.
In the process of bathing, a user often closes a water faucet in order to save water and gas in the processes of washing hair and bathing, in the process of igniting boiled water again, in order to improve the safety of the user, the front cleaning is arranged before the water heater is ignited, the rear cleaning is carried out after the water heater is extinguished, and the original waste gas in the water heater is discharged out of the water heater, so that a section of cold water appears after the boiled water is boiled again, and the user feels that the outlet water temperature of the water faucet is suddenly cooled and suddenly heated, thereby influencing the bathing experience of the user.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a control method of a gas water heater, aiming at preventing cold water from appearing after the gas water heater is turned off and then turned on again midway in the use process.
Another object of the present invention is to provide a gas water heater, and a control method of the gas water heater is adopted.
In order to solve the technical problems, the invention adopts the technical scheme that:
a control method of a gas water heater is provided, wherein the gas water heater is provided with a water return pipeline for controlling the water return from a hot water pipe to a cold water pipe;
the control method comprises the following steps:
detecting the water flow of the gas water heater in the using process;
and judging whether the water flow of the gas water heater is smaller than a first set flow, if so, controlling the water return pipeline to be communicated, and enabling the gas water heater to be in a combustion state.
Further, the gas water heater being in a combustion state includes the gas water heater operating at a minimum load.
And further, judging whether the water flow of the gas water heater exceeds a second set flow, wherein the second set flow is greater than the first set flow, if so, controlling the water return pipeline to be closed, and enabling the gas water heater to work at an actually required load.
Furthermore, the gas water heater controls the return water temperature of the return water pipeline in real time during the minimum load working period,
when the return water temperature exceeds a first set temperature, controlling the return water pipeline to be closed, and controlling the gas water heater to stop and stand by;
when the return water temperature is lower than a second set temperature, controlling the return water pipeline to be opened again, and controlling the gas water heater to ignite and burn;
wherein the second set temperature is less than the first set temperature.
Further, the method also comprises the steps that the gas water heater obtains a command signal for starting to work, a water return pipeline is controlled to be communicated, and the gas water heater ignites and burns;
and judging whether the return water temperature in the return water pipeline exceeds a third set water temperature, if so, controlling the return water pipeline to be closed, extinguishing the gas water heater and sending prompt information.
Further, the use command signal at least comprises a use time length, and the opening and the closing of the water return pipeline are controlled within the use time length range.
A gas water heater is provided with a hot water cruising mode, and the hot water cruising mode adopts the control method of the gas water heater.
And the device further comprises a control panel, wherein a bathing selection key corresponding to the hot water cruising mode is arranged on the control panel.
Further, the gas water heater has a timing module at least for setting an execution time of the hot water cruise mode.
Furthermore, the intelligent terminal control system further comprises a communication connecting part used for being in communication connection with the intelligent terminal, and the hot water cruise mode can be controlled through the intelligent terminal.
After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.
1. In the invention, the water return pipeline is conducted in the midway water closing process, so that the water outlet end of the gas water heater still has water outlet flow, and the fire grate of the gas water heater does not need to be flamed out but works with the minimum load; after the user opens the water again, control return water pipeline and close, because the discharge of water end increases once more, the fire of gas heater is arranged and is worked with normal load again, has avoided gas heater's fire to arrange flame-out and the action of lighting a fire again.
2. The invention provides the method that the using command comprises the limitation of the using time, the gas water heater executes the control steps of the invention within the using time range, and the gas water heater does not execute the steps of the invention after the using time is reached, so that the gas safety can be effectively ensured, and the gas can be saved.
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 schematic view of a gas water heater of the present invention;
FIG. 2 is a schematic flow chart diagram of one embodiment of a method of controlling a gas water heater of the present invention;
FIG. 3 is a schematic flow chart diagram of another embodiment of the control method of the gas water heater of the present invention;
FIG. 4 is a schematic flow diagram of the method of controlling the temperature of the return water in the return line of FIGS. 2 and 3.
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", "horizontal", "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 referred devices or elements must have specific orientations, be constructed in specific orientations, and be operated, 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 4, the present invention provides a gas water heater and a control method thereof. As shown in fig. 1, the gas water heater has a water return line for controlling the return of water from the hot water pipe to the cold water pipe.
In particular, users generally have a water end in their homes, such as a shower head for bathing. The gas water heater comprises a water outlet end and a water inlet end, a water supply pipeline is arranged between the water outlet end and the water using end, and a water return pipeline is arranged between the water supply pipeline and the water inlet end, namely the water return pipeline is used for controlling the water return from the hot water pipe to the cold water pipe of the gas water heater. Furthermore, the water return pipeline is provided with a water pump, a one-way valve and other components for controlling the opening and closing of the water return pipeline.
The control method as shown in fig. 2 to 4 includes the steps of:
detecting the water flow of the gas water heater in the using process;
and judging whether the water flow of the gas water heater is smaller than a first set flow, if so, controlling the water return pipeline to be communicated, and enabling the gas water heater to be in a combustion state.
Specifically, the user is at the in-process of bathing, and the water supply pipeline switches on, and gas heater's the water source intercommunication of intaking end and user's family, and the fire row among the gas heater lights and heats the cold water that the end of intaking supplied, and the hot water after the heating reaches the water end through the water supply pipeline, supplies the user to use. When the user turns off the water midway, the water using end cannot discharge the water or the water discharge flow is very small, and at the moment, the water return pipeline is controlled to be conducted.
Furthermore, under the action of the components such as the water pump, the one-way valve and the like, the water return pipeline and the water supply pipeline are communicated. At this time, it is the water stored in the gas water heater and part of the water in the water supply line and the water return line that actually circulates between the lines and the water storage tank of the gas water heater.
Therefore, the water outlet end of the gas water heater is always kept in a water outlet state, and the fire grate of the gas water heater is not extinguished but kept in a combustion state. Preferably, the gas water heater being in a burning state includes the gas water heater operating at a minimum load.
The gas water heater heats the water in the pipeline with minimum load work, so that the water in the pipeline cannot become cold, and when the water end is opened again, the water in the pipeline has certain heat, so that the condition of sudden cooling and sudden heating of the water can not occur.
Further, as shown in fig. 2 and 3, the control method further includes:
and judging whether the water flow of the gas water heater exceeds a second set flow, wherein the second set flow is greater than the first set flow, if so, controlling the water return pipeline to be closed, and controlling the gas water heater to work at an actually required load.
In detail, when the user opens water again at the water using end, the water flow of the water using end is increased, namely the water flow of the gas water heater is increased, and when the water flow exceeds a second set flow, the user is judged to take a bath again, at this time, the water return pipeline is closed, the pump on the water return pipeline is stopped, the water inlet end of the gas water heater is conducted with the water source in the home of the user again, and the gas water heater works with the load required normally again.
In the scheme, the water return pipeline is conducted in the midway water closing process, so that the water outlet end of the gas water heater has water outlet flow in the water closing process of the water using end, and the fire grate of the gas water heater does not need to be flamed out but works with the minimum load; after the user opens the water again, control return water pipeline and close, because the discharge of water end increases once more, the fire of gas heater is arranged and is worked with normal load again, has avoided gas heater's fire to arrange flame-out and the action of lighting a fire again.
The invention avoids the situation that water is suddenly cooled and suddenly heated at the water end when the user boils water again after turning off the water by controlling the gas water heater to continuously burn in the midway water turning-off process.
In some embodiments of the present invention, as shown in fig. 4, the gas water heater controls the return water temperature of the return water line in real time during operation at a minimum load.
Specifically, when the return water temperature exceeds a first set temperature, the return water pipeline is controlled to be closed, and the gas water heater is controlled to be flamed out and standby; and when the water return temperature is lower than a second set temperature, controlling the water return pipeline to be opened again, and controlling the gas water heater to ignite and burn, wherein the second set temperature is lower than the first set temperature.
In detail, in the above-described aspect, after the water is shut off halfway, the fire of the gas water heater is not extinguished, but is maintained in a combustion state with a minimum workload, and the water in the pipeline is heated and kept warm. If the time that the user opens the water again is short from the last time of closing the water, the fire grate of the gas water heater can be changed from the minimum load to the normal load operation without flameout and reignition.
However, if the time for the user to boil water again is longer than the last time for turning off water, the fire grate of the gas water heater is always in a burning state to heat the water in the pipeline, the temperature of the water in the pipeline may be too high, and when the user turns on the water again, the user is easily scalded.
In order to solve the above problem, in this embodiment, the gas water heater is controlled to detect the return water temperature in the return water pipeline in real time, that is, the temperature of the water at the water inlet end of the gas water heater. When the return water temperature exceeds the first set temperature, preferably, the first set temperature is slightly lower than the bathing temperature set by the user, for example, the bathing temperature set by the user is 42 ℃, then when the return water temperature rises to 38 ℃, the return water pipeline is controlled to be closed, and the fire grate of the gas water heater is controlled to be extinguished and stand by.
In the standby process, the heat of the reclaimed water in the water return pipeline can be partially dissipated, the temperature of the water in the water return pipeline can be relatively reduced a little, and when the water return temperature in the water return pipeline is detected to be lower than a second set temperature, for example, the second set temperature is 33 ℃, the fire grate of the gas water heater is controlled to be ignited and combusted again, and the water return pipeline is controlled to be conducted again.
Preferably, the re-ignited combustion is also operated at minimum load.
The above-described process is a step performed during a period of time in which the user turns off and turns on water again halfway, and the timing at which the user turns on water again is uncertain.
In the first case, when the water return temperature is between the second set temperature and the first set temperature, for example, between 33 degrees celsius and 38 degrees celsius, and the user turns on the water again in the standby state of the gas water heater, the fire bank of the gas water heater is controlled to be ignited and operated at a normal load.
And under the second condition, when the return water temperature is lower than the second set temperature, the fire grate of the gas water heater is ignited and combusted again, the return water pipeline is controlled to be closed when the user opens water again under the condition that the return water pipeline is controlled to be conducted again, and the fire grate of the gas water heater is controlled to work under normal load instead of minimum load.
It should be noted that, in the first case, although there is a fire extinguishing and re-ignition, since the temperature of the water in the pipeline is not low, and the fire is discharged under normal load after re-ignition, the re-entering cold water is heated quickly, the actual temperature of the cold water entering during the cleaning process before the blower is not very low under the mixing action of the front and back hot water in the pipeline, and the temperature fluctuation of the outlet water at the water end during the process is not large, which falls into an acceptable range.
As shown in fig. 2 and 4, the control method of the gas water heater of the present embodiment includes the following steps:
s0, the user starts bathing, and the gas water heater works at the actual required load;
s1, detecting the water flow of the gas water heater in the using process;
s2, judging whether the water flow of the gas water heater is smaller than a first set flow, if so, controlling a water return pipeline to be communicated, enabling the gas water heater to be in a combustion state with the minimum working load, and if not, executing S0;
and S3, judging whether the water flow of the gas water heater exceeds a second set flow, if so, controlling the water return pipeline to be closed, controlling the gas water heater to work at an actually required load, and if not, executing the step S2.
In step S2, as shown in fig. 4, during a minimum working load period of the gas water heater, detecting a return water temperature of the return water pipeline in real time, and when determining whether the return water temperature exceeds a first set temperature, if so, controlling the return water pipeline to be closed, and controlling the gas water heater to stall and stand by; if not, controlling the water return pipeline to be communicated, and enabling the gas water heater to work at the minimum load; and when judging whether the return water temperature is lower than a second set temperature, if so, controlling the return water pipeline to be opened again, controlling the gas water heater to ignite and burn at the minimum working load, otherwise, controlling the return water pipeline to be closed, and controlling the gas water heater to stop burning and stand by.
In some embodiments of the present invention, as shown in fig. 3, the control method further includes:
the gas water heater acquires a command signal for starting to work, controls the communication of the water return pipeline and ignites and burns the gas water heater;
and judging whether the return water temperature in the return water pipeline exceeds a third set water temperature, if so, controlling the return water pipeline to be closed, extinguishing the gas water heater and sending prompt information.
In detail, before a user starts to use the gas water heater for bathing, a command signal for using the gas water heater is sent to the gas water heater, and a command can be sent to the gas water heater through a key on a control panel of the gas water heater or through an intelligent terminal.
Further, the use command signal at least comprises a use time length, and the opening and the closing of the water return pipeline are controlled within the use time length range.
In detail, the user may specifically set the bathing time length according to the actual situation, or may perform the steps of the embodiment within the set use time length range by adopting the default time of the system, for example, 30 minutes.
In the above scheme, when the gas water heater acquires a command signal for starting to work, the water return pipeline is controlled to be communicated, the fire grate of the gas water heater is ignited and combusted to heat water in the pipeline, when the water return temperature in the water return pipeline exceeds a third set water temperature, for example, the bathing temperature set by a user is 42 ℃, the third set temperature can be 40 ℃, at this time, the water return pipeline is controlled to be closed, the gas water heater is controlled to stop fire for standby, a prompt message is sent to the user to prompt the user that the circulation is completed, and bathing can be performed.
Preferably, the third set water temperature can also be set according to the actual needs of the user, and generally set to be slightly lower than the bathing temperature set by the user.
When circulation is completed and a user does not take a bath in time, the heat of water in the pipeline is partially dissipated in the standby process, if the temperature of the water in the water return pipeline is detected to be lower than the second set temperature in the standby process, the water return pipeline still needs to be conducted again, the gas water heater is controlled to ignite and burn, the temperature of the water in the water return pipeline is increased to the third set temperature, the water return pipeline is controlled to be closed again, the gas water heater is flamed out, and prompt information is sent out again.
The above process is a repeated circulation process, if the user does not take a bath all the time within the set using time range, the user exits the bath mode when the set using time reaches, and even if the temperature of the water in the water return pipeline is reduced to a lower level, the water return pipeline is not communicated and the gas water heater is ignited and combusted.
In the above scheme, the usage command includes a limitation on the usage duration, the gas water heater executes the steps of the invention within the usage duration range, and the gas water heater does not execute the steps of the invention after the usage duration is reached, so that the gas safety can be effectively ensured, and the gas consumption is also saved.
Specifically, the use duration may be set according to a user's demand, for example, according to a seasonal variation setting, and the use duration may be set to be longer in winter and shorter in summer. It is also possible to set the length of time according to the user population, for example, the length of time can be set longer for children or the elderly, and shorter for younger people.
As shown in fig. 3, the control method of the gas water heater of the present invention comprises the steps of:
s00, before the use starts, the gas water heater obtains a working start command signal, the water return pipeline is controlled to be communicated, and the gas water heater ignites and burns;
s01, judging whether the return water temperature in the return water pipeline exceeds a third set water temperature, if so, controlling the return water pipeline to be closed, extinguishing the gas water heater, and sending prompt information;
s02, judging whether the user starts bathing, if yes, controlling the gas water heater to work at the actual required load, if not, executing the step S01;
s03, judging whether the start time of the bathing program reaches the preset time, if so, exiting the bathing mode, and if not, executing the step S04;
s04, judging whether the water flow of the gas water heater is smaller than a first set flow, if so, controlling a water return pipeline to be communicated, enabling the gas water heater to be in a combustion state, and if not, controlling the gas water heater to work at an actually required load;
and S05, judging whether the water flow of the water using end exceeds a second set flow, if so, controlling the water return pipeline to be closed, controlling the gas water heater to work at an actually required load, and if not, executing a step S04.
In step S04, as shown in fig. 4, during a minimum working load period of the gas water heater, detecting a return water temperature of the return water pipeline in real time, and when it is determined that the return water temperature exceeds a first set temperature, if so, controlling the return water pipeline to be closed, and controlling the gas water heater to stall and stand by; if not, controlling the water return pipeline to be communicated, and enabling the gas water heater to work at the minimum load; and when judging whether the return water temperature is lower than a second set temperature, if so, controlling the return water pipeline to be opened again, controlling the gas water heater to ignite and burn at the minimum working load, otherwise, controlling the return water pipeline to be closed, and controlling the gas water heater to stop burning and stand by.
Further, the gas water heater provided by the invention has a hot water cruising mode, and the hot water cruising mode adopts the control method of the gas water heater.
In detail, a control panel of the gas water heater is provided with a bathing selection key corresponding to the hot water cruising mode, when the bathing selection key is activated, the hot water cruising mode is started, the hot water cruising mode comprises the steps that when the water flow of the gas water heater is smaller than a first set flow, the return water temperature in the return water pipeline is detected in real time, whether the difference value between the return water temperature and the set temperature is lower than a set temperature difference value is judged, if yes, the return water pipeline is controlled to be communicated, the gas water heater is controlled to ignite and burn, and if not, the return water pipeline terminal is controlled, and the gas water heater is controlled to stop burning and stand by.
In the scheme, the bathing selection key corresponding to the hot water circulation mode is arranged in the gas water heater, so that the problem that the water temperature is unstable when water is shut off and then opened midway in the bathing process is solved.
In the hot water cruising mode, namely in the bathing procedure, the temperature of water can be kept within a stable range no matter when a user opens the water at the water using end, and the temperature cannot be too low or too high, so that the use experience of the user is improved. The hot water circulation mode of the present invention may also be understood as a bathing circulation mode.
Specifically, when the bathing selection key is activated and the water flow of the gas water heater is smaller than a first set flow, namely bathing is not started or water is shut off halfway in the bathing process, the return water temperature in the return water pipeline is detected in real time, if the difference value between the return water temperature and the set temperature is lower than the set temperature difference value, the temperature of water in the pipeline is lower, and at the moment, the return water pipeline is controlled to be communicated, and the gas water heater is controlled to ignite and burn.
If the difference between the return water temperature and the set temperature is not lower than the set temperature difference, the temperature of the water in the pipeline is still enough, at the moment, the return water pipeline is controlled to be interrupted, and the gas water heater is controlled to be flamed out and stand by.
When the hot water circulation mode is not used, the bathing selection key can be manually closed.
Preferably, the gas water heater has a timing module at least for setting an execution time of the hot water cruise mode. And when the execution time defined by the timing module reaches, closing the bathing selection key.
In detail, the timing module is a knob, different pointers are arranged on the knob and respectively correspond to 15 minutes, 30 minutes, 45 minutes and 60 minutes, when the pointer is rotated to a specific time, the time is selected, and of course, the number of the pointers and the time can be set according to specific conditions.
As another example, the timing module is a combination of a display and keys, where a key press is 15 minutes once, 30 minutes twice, 45 minutes three times, 60 minutes four times, and a further press back to 15 minutes, thus cycling the correspondence.
The invention does not make specific requirements on the structure of the timing module, and all structures capable of realizing the functions are within the protection scope of the invention.
Furthermore, the gas water heater also comprises an intelligent terminal in communication connection with the gas water heater, and the hot water cruising mode can be controlled through the intelligent terminal, including activating the bathing selection key and/or the timing module.
Specifically, with the development of internet technology, the internet of everything is in a deep life of a user, the gas water heater is used as a household appliance with high use frequency in a user home, and the gas water heater further comprises a communication connecting part which is in communication connection with the intelligent terminal, and the gas water heater can be in communication connection with other intelligent terminals of the user through the communication connecting part.
The user can send a command of opening a bathing selection key to the gas water heater through the intelligent terminal, and the time length of the bathing program to be executed can also be set through the intelligent terminal.
Of course, a traditional mode can be selected, a bathing selection key is arranged on a control panel of the gas water heater, and the hot water circulation mode is opened by activating the bathing selection key and/or the timing module.
By the scheme, the selectivity of the user is improved.
The invention can solve the problem that cold water exists in the pipeline after water is shut off midway and water is boiled again, does not need to be additionally provided with external structures such as electric auxiliary heat and the like, and is convenient to realize.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A control method of a gas water heater is provided, wherein the gas water heater is provided with a water return pipeline for controlling the water return from a hot water pipe to a cold water pipe;
the method is characterized in that: the control method comprises the following steps:
detecting the water flow of the gas water heater in the using process;
and judging whether the water flow of the gas water heater is smaller than a first set flow, if so, controlling the water return pipeline to be communicated, and enabling the gas water heater to be in a combustion state.
2. The control method of a gas water heater according to claim 1, wherein:
the gas water heater being in a combustion state includes the gas water heater operating at a minimum load.
3. The control method of a gas water heater according to claim 2, wherein: further comprising:
and judging whether the water flow of the gas water heater exceeds a second set flow, wherein the second set flow is greater than the first set flow, if so, controlling the water return pipeline to be closed, and enabling the gas water heater to work with an actual required load.
4. A control method of a gas water heater according to claim 3, characterized in that:
the gas water heater controls the return water temperature of the return water pipeline in real time during the minimum load working period,
when the return water temperature exceeds a first set temperature, controlling the return water pipeline to be closed, and controlling the gas water heater to stop and stand by;
when the return water temperature is lower than a second set temperature, controlling the return water pipeline to be opened again, and controlling the gas water heater to ignite and burn;
wherein the second set temperature is less than the first set temperature.
5. The control method of a gas water heater according to any one of claims 1 to 4, wherein: also comprises
The gas water heater acquires a command signal for starting to work, controls the communication of the water return pipeline and ignites and burns the gas water heater;
and judging whether the return water temperature in the return water pipeline exceeds a third set water temperature, if so, controlling the return water pipeline to be closed, extinguishing the gas water heater and sending prompt information.
6. The control method of a gas water heater according to claim 5, wherein:
the use command signal at least comprises use time, and the opening and closing of the water return pipeline are controlled within the use time range.
7. A gas water heater, its characterized in that: there is a hot water cruise mode using a control method of a gas water heater as claimed in any one of claims 1 to 6.
8. A gas water heater as defined in claim 7, wherein:
the hot water cruising type bathing device comprises a control panel, wherein a bathing selection key corresponding to the hot water cruising mode is arranged on the control panel.
9. A gas water heater as defined in claim 7, wherein:
the gas water heater has a timing module at least for setting an execution time of the hot water cruise mode.
10. A gas water heater according to any one of claims 7-9, wherein:
the intelligent terminal is used for controlling the hot water cruising mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010895894.0A CN112833550A (en) | 2020-08-31 | 2020-08-31 | Gas water heater and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010895894.0A CN112833550A (en) | 2020-08-31 | 2020-08-31 | Gas water heater and control method thereof |
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| JPH09280649A (en) * | 1996-04-12 | 1997-10-31 | Rinnai Corp | Water heater |
| CN107192118A (en) * | 2017-05-23 | 2017-09-22 | 青岛海尔智能技术研发有限公司 | A kind of water heater open-and-heating device and its control method |
| CN105674547B (en) * | 2016-04-06 | 2018-08-14 | 成都金鼎恒信科技有限公司 | A kind of intelligent circulation gas heater |
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| CN110345629A (en) * | 2019-08-07 | 2019-10-18 | Tcl家用电器（中山）有限公司 | Control method, gas heater and the readable storage medium storing program for executing of gas heater |
| CN210154067U (en) * | 2019-01-02 | 2020-03-17 | 芜湖美的厨卫电器制造有限公司 | Gas water heater |
| CN210486089U (en) * | 2019-06-03 | 2020-05-08 | 青岛经济技术开发区海尔热水器有限公司 | Water tank for gas heating equipment and gas heating equipment |
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| JPH09280649A (en) * | 1996-04-12 | 1997-10-31 | Rinnai Corp | Water heater |
| CN105674547B (en) * | 2016-04-06 | 2018-08-14 | 成都金鼎恒信科技有限公司 | A kind of intelligent circulation gas heater |
| CN107192118A (en) * | 2017-05-23 | 2017-09-22 | 青岛海尔智能技术研发有限公司 | A kind of water heater open-and-heating device and its control method |
| CN109297179A (en) * | 2017-07-25 | 2019-02-01 | 青岛经济技术开发区海尔热水器有限公司 | Electricity auxiliary warm-up cycle gas heater, prewarming circulating system and control method |
| CN210154067U (en) * | 2019-01-02 | 2020-03-17 | 芜湖美的厨卫电器制造有限公司 | Gas water heater |
| CN210486089U (en) * | 2019-06-03 | 2020-05-08 | 青岛经济技术开发区海尔热水器有限公司 | Water tank for gas heating equipment and gas heating equipment |
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