CN113503646A - Control method of gas water heater and gas water heater - Google Patents
Control method of gas water heater and gas water heater Download PDFInfo
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- CN113503646A CN113503646A CN202110964870.0A CN202110964870A CN113503646A CN 113503646 A CN113503646 A CN 113503646A CN 202110964870 A CN202110964870 A CN 202110964870A CN 113503646 A CN113503646 A CN 113503646A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 463
- 238000000034 method Methods 0.000 title claims abstract description 37
- 230000001954 sterilising effect Effects 0.000 claims abstract description 338
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 304
- 239000000523 sample Substances 0.000 claims description 27
- 230000004044 response Effects 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 3
- 244000052616 bacterial pathogen Species 0.000 abstract description 2
- 230000006870 function Effects 0.000 description 6
- 241000894006 Bacteria Species 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009395 breeding Methods 0.000 description 2
- 230000001488 breeding effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 238000004590 computer program Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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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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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
- C02F1/325—Irradiation devices or lamp constructions
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
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- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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Abstract
The application relates to a control method of a gas water heater and the gas water heater. The gas water heater includes: the gas water heater comprises a gas water heater body, a water pump, a sterilizing device and a controller, wherein the water pump and the sterilizing device are installed on a main water path in the gas water heater body, a water outlet and a water inlet of the main water path are connected through a return water path, and the method comprises the following steps: the controller responds to a sterilization starting instruction, obtains a target sterilization coefficient, and determines sterilization task amount according to the target sterilization coefficient; the controller drives the stored water in the main water path and the water return water path to circularly flow through the water pump, and the stored water is sterilized through the sterilizing device; when the sterilization task amount is reached, the controller stops the water pump and the sterilization device. By adopting the method and the device, harmful germs bred in the pipeline can be sterilized.
Description
Technical Field
The application relates to the technical field of intelligent household appliances, in particular to a control method of a gas water heater and the gas water heater.
Background
At present, municipal water supply pipe and user house ornamentation water pipe use the long time after, can breed more harmful germ in the pipeline, especially the stagnant water that does not flow for a long time, and harmful germ can be the geometric multiple and breeds. The bath outlet water temperature of the conventional gas water heater is not more than 50 ℃ generally, and harmful germs in tap water are difficult to kill.
Disclosure of Invention
In view of the above, it is necessary to provide a control method for a gas water heater and a gas water heater.
In a first aspect, a control method for a gas water heater is provided, the gas water heater comprising: the gas water heater comprises a gas water heater body, a water pump, a sterilizing device and a controller, wherein the water pump and the sterilizing device are installed on a main water path in the gas water heater body, a water outlet and a water inlet of the main water path are connected through a return water path, and the method comprises the following steps:
the controller responds to a sterilization starting instruction, obtains a target sterilization coefficient, and determines sterilization task amount according to the target sterilization coefficient;
the controller drives the stored water in the main water path and the water return water path to circularly flow through the water pump, and the stored water is sterilized through the sterilizing device;
when the sterilization task amount is reached, the controller stops the water pump and the sterilization device.
As an alternative embodiment, the determining the sterilization task amount according to the target sterilization coefficient includes:
the controller determines the product of the target sterilization coefficient and the unit time length of sterilization as the sterilization task amount; the unit time length of sterilization is the time length required by the stored water to circularly flow for one circle in the main water path and the return water path.
As an alternative embodiment, the determining the sterilization task amount according to the target sterilization coefficient includes:
the controller determines the product of the target sterilization coefficient and the sterilization unit water flow as the sterilization task amount; the sterilization unit water flow is the water flow corresponding to the circle of the water stored in the main water path and the return water path.
As an optional implementation, the obtaining the target sterilization coefficient includes:
the controller acquires a target sterilization interval duration and inquires the target sterilization coefficient corresponding to the target sterilization interval duration in a pre-stored corresponding relation between the sterilization interval duration and the sterilization coefficient.
As an optional embodiment, the gas water heater further comprises an operation display, and the obtaining the target sterilization coefficient comprises:
the operation display responds to a sterilization coefficient setting instruction of a user, obtains the target sterilization coefficient set by the user, and sends the target sterilization coefficient to the controller.
As an optional embodiment, the gas water heater further comprises an operation display, and the obtaining the target sterilization coefficient comprises:
the operation display responds to a sterilization gear setting instruction of a user, obtains a target sterilization gear set by the user, and sends the target sterilization gear to the controller.
And the controller inquires the target sterilization coefficient corresponding to the target sterilization gear in the pre-stored corresponding relation between the sterilization gear and the sterilization coefficient.
As an optional embodiment, the gas water heater further comprises an inlet water temperature probe, and the method further comprises:
the controller responds to a preheating starting instruction, detects a first water temperature of the stored water through the water inlet temperature probe, and drives the stored water in the main water path and the water return water path to circularly flow through the water pump;
when the water temperature difference value of the second water temperature of the stored water and the first water temperature detected by the water inlet temperature probe reaches a preset water temperature difference value threshold value, the controller determines the current preheating time length as the sterilization unit time length.
As an optional embodiment, the gas water heater further comprises a water flow sensing device, and the method further comprises:
the controller detects the water flow of the stored water through the water flow sensing device;
and the controller determines the product of the current preheating time and the water flow as the sterilization unit water flow.
In a second aspect, there is provided a gas water heater comprising: the gas water heater comprises a gas water heater body, a water pump, a sterilization device and a controller, wherein the water pump and the sterilization device are arranged on a main water path in the gas water heater body, and a water outlet and a water inlet of the main water path are connected through a return water path; wherein the content of the first and second substances,
the controller is used for responding to a sterilization starting instruction, acquiring a target sterilization coefficient and determining sterilization task amount according to the target sterilization coefficient;
the controller is also used for driving the stored water in the main water channel and the water return water channel to circularly flow through the water pump and sterilizing the stored water through the sterilizing device;
the controller is also used for stopping the water pump and the sterilizing device when the sterilizing task amount is reached.
As an alternative embodiment, the controller is configured to determine the sterilization task amount as a product of the target sterilization coefficient and a sterilization unit time length; the unit time length of sterilization is the time length required by the stored water to circularly flow for one circle in the main water path and the return water path.
As an alternative embodiment, the controller is configured to determine the target sterilization coefficient multiplied by a sterilization unit water flow rate as the sterilization task amount; the sterilization unit water flow is the water flow corresponding to the circle of the water stored in the main water path and the return water path.
As an optional implementation manner, the controller is configured to obtain a target sterilization interval duration, and query the target sterilization coefficient corresponding to the target sterilization interval duration in a pre-stored correspondence between the sterilization interval duration and the sterilization coefficient.
As an optional implementation manner, the gas water heater further comprises an operation display, which is used for responding to a sterilization coefficient setting instruction of a user, acquiring the target sterilization coefficient set by the user, and sending the target sterilization coefficient to the controller.
As an optional implementation manner, the gas water heater further includes an operation display, configured to, in response to a sterilization gear setting instruction of a user, obtain a target sterilization gear set by the user, and send the target sterilization gear to the controller.
The controller is further configured to query the target sterilization coefficient corresponding to the target sterilization gear in a pre-stored correspondence between sterilization gears and sterilization coefficients.
As an optional embodiment, the gas water heater further comprises an inlet water temperature probe;
the controller is used for responding to a preheating starting instruction, detecting a first water temperature of the stored water through the water inlet temperature probe, and driving the stored water in the main water path and the water return water path to circularly flow through the water pump;
the controller is further used for determining the current preheating time length as the sterilization unit time length when the water temperature difference value of the first water temperature and the second water temperature of the stored water detected by the water inlet temperature probe reaches a preset water temperature difference value threshold value.
As an optional embodiment, the gas water heater further comprises a water flow sensing device;
the controller is also used for detecting the water flow of the stored water through the water flow sensing device;
the controller is also used for determining the product of the current preheating time and the water flow as the sterilization unit water flow.
The application provides a control method of a gas water heater and the gas water heater. This gas heater includes: the gas water heater comprises a gas water heater body, a water pump, a sterilizing device and a controller, wherein the water pump and the sterilizing device are installed on a main water path in the gas water heater body, and a water outlet and a water inlet of the main water path are connected through a water return path. The controller responds to the sterilization starting instruction, obtains a target sterilization coefficient, and determines sterilization task amount according to the target sterilization coefficient. Then, the controller drives the stored water in the main water channel and the return water channel to circularly flow through the water pump, and the stored water is sterilized through the sterilizing device. Thereafter, when the sterilization task amount is reached, the controller stops the water pump and the sterilization apparatus. Therefore, the gas water heater can sterilize harmful bacteria breeding in the pipeline.
Drawings
Fig. 1 is a schematic structural diagram of a gas water heater provided in an embodiment of the present application;
FIG. 2 is a flow chart of a control method of a gas water heater according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of an operation display according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of an operation display according to an embodiment of the present disclosure;
fig. 5 is a flowchart of a control method of a gas water heater according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The embodiment of the application provides a control method of a gas water heater. As shown in fig. 1, the gas water heater includes a gas water heater body 1, a water pump 2, a water flow sensing device 3, a sterilization device 4, an outlet water temperature probe 5, an inlet water temperature probe (also referred to as a return water temperature probe) 6, an operation display 7, and a controller 8. The water pump 2, the water flow sensing device 3 and the sterilizing device 4 are installed on a main water path in the gas water heater body 1 in series, the water pump 2 is used for driving stored water in the main water path and a return water path to circularly flow, the water flow sensing device 3 is used for detecting water flow in real time, and the sterilizing device 4 is used for sterilizing the stored water; the water outlet and the water inlet of the main waterway are connected through a water return waterway (also called as a cold water pipe or a water return pipe), and the water return waterway is provided with a one-way valve to prevent tap water from directly flowing to a water consumption point; the water outlet temperature probe 5 is arranged at the water outlet end of a main water channel in the gas water heater body 1 and is used for detecting the temperature of water in real time; the water inlet temperature probe 6 is arranged at the water inlet end of the main water channel in the gas water heater body 1 and is used for detecting the water inlet temperature or the water return temperature in real time; the operation display 7 is provided with a setting key 71, a preheating function key 72 and a sterilization function key 73; the water pump 2, the water flow sensing device 3, the sterilizing device 4, the water outlet temperature probe 5, the water inlet temperature probe 6 and the operation display 7 are all electrically connected with the controller 8. Optionally, the sterilization device 4 may be an ultraviolet sterilization lamp, or may be other types of sterilization devices, and the embodiment of the present application is not limited.
The following will describe in detail a control method of a gas water heater provided in an embodiment of the present application with reference to specific embodiments, as shown in fig. 2, the specific steps are as follows:
in step 201, the controller responds to the sterilization starting instruction, obtains a target sterilization coefficient, and determines the sterilization task amount according to the target sterilization coefficient.
In practice, when the user needs to sterilize the gas water heater, the user may click the sterilization function key 73 on the operation display 7 to start the movable sterilization. Accordingly, the controller 8 receives the sterilization start command. At this time, the controller 8 acquires a target sterilization coefficient in response to the sterilization start instruction, and determines the sterilization task amount according to the target sterilization coefficient.
Alternatively, the way of acquiring the target sterilization coefficient by the controller 8 may be various, and the embodiment of the present application provides three possible implementations, which are described in detail below.
In the first mode, the controller acquires the target sterilization interval duration, and inquires the target sterilization coefficient corresponding to the target sterilization interval duration in the pre-stored correspondence relationship between the sterilization interval duration and the sterilization coefficient.
In implementation, the controller 8 may store a corresponding relationship between the sterilization interval duration and the sterilization coefficient in advance, and the corresponding relationship may be set by a technician according to an actual situation, which is not limited in the embodiment of the present application. The sterilization interval duration is the duration from the last sterilization treatment of the gas water heater to the sterilization treatment of the time. Table one is a corresponding relationship between the sterilization interval duration and the sterilization coefficient, as shown in table one:
watch 1
| Serial number | Time interval (sky) | Coefficient of kill bacteria |
| 1 | 1 | 1 |
| 2 | 2 | 2 |
| 3 | 3 | 3 |
| …… | …… | …… |
After the controller 8 receives the sterilization start instruction, the target sterilization interval duration may be further obtained. Then, the controller 8 may inquire the target sterilization coefficient corresponding to the target sterilization interval duration in the correspondence relationship between the sterilization interval duration and the sterilization coefficient.
And in the second mode, the operation display responds to the sterilization coefficient setting instruction of the user, obtains the target sterilization coefficient set by the user and sends the target sterilization coefficient to the controller.
In practice, as shown in fig. 3, the user may enter the sterilization coefficient setting stage by long pressing or multi-clicking the sterilization function key 73 on the operation display 7. Accordingly, the operation display 7 receives a sterilization factor setting instruction from the user. Thereafter, the user can set the target sterilization coefficient by clicking the setting key 71 on the operation display 7. Accordingly, the operation display 7 responds to the sterilization coefficient setting instruction of the user, and then obtains the target sterilization coefficient set by the user, and sends the target sterilization coefficient to the controller 8. Alternatively, as shown in fig. 3, the operation display 7 may be further provided with a sterilization coefficient display section 74.
And in the third mode, the operation display responds to the sterilization gear setting instruction of the user, acquires a target sterilization gear set by the user and sends the target sterilization gear to the controller. The controller inquires a target sterilization coefficient corresponding to the target sterilization gear in a pre-stored corresponding relation between the sterilization gear and the sterilization coefficient.
In practice, as shown in fig. 4, the user may enter the sterilization gear setting stage by long pressing or multi-clicking the sterilization function key 73 on the operation display 7. Accordingly, the operation display 7 receives a sterilization gear setting instruction from the user. Thereafter, the user can set the target sterilization gear by clicking the setting key 71 on the operation display 7. Accordingly, the operation display 7 responds to the sterilization gear setting instruction of the user, and then the target sterilization gear set by the user can be acquired and sent to the controller 8. Alternatively, as shown in fig. 4, the operation display 7 may be further provided with a sterilization gear position display part 75.
The controller 8 may store a corresponding relationship between the sterilization gear and the sterilization coefficient in advance, and the corresponding relationship may be set by a technician according to actual needs, which is not limited in the embodiment of the present application. After receiving the target sterilization gear, the controller 8 may further query a target sterilization coefficient corresponding to the target sterilization gear in the correspondence between the sterilization gear and the sterilization coefficient.
Alternatively, the way of determining the sterilization task amount according to the target sterilization coefficient by the controller 8 may be various, and the embodiment of the present application provides two possible implementations, which are described as follows.
In the first mode, the controller determines the product of the target sterilization coefficient and the unit time length of sterilization as the sterilization task amount. Wherein, the unit time length of sterilization is the time length required by the water storage to circularly flow for one circle in the main water path and the return water path.
In implementation, after the controller 8 acquires the target sterilization coefficient, the product of the target sterilization coefficient and the sterilization unit time length may be determined as the sterilization task amount. Wherein, the unit time length of sterilization is the time length required by the water storage to circularly flow for one circle in the main water path and the return water path. Optionally, the sterilization unit duration can be set by a technician, and can also be detected by a gas water heater, and the embodiment of the application is not limited. The following detailed description will be given to the processing procedure of detecting the unit time length of sterilization for the gas water heater, and will not be repeated herein.
And in the second mode, the controller determines the product of the target sterilization coefficient and the sterilization unit water flow as the sterilization task amount. The sterilization unit water flow is the water flow corresponding to the circle of the water stored in the main water channel and the return water channel.
In an implementation, after the controller 8 obtains the target sterilization coefficient, the product of the target sterilization coefficient and the sterilization unit water flow rate may be determined as the sterilization task amount. The sterilization unit water flow is the water flow corresponding to the circle of the water stored in the main water channel and the return water channel. Optionally, the sterilization unit water flow rate can be set by a technician, and can also be detected by a gas water heater, and the embodiment of the application is not limited. The following detailed description will be given to the processing procedure of detecting the water flow rate of the sterilization unit by the gas water heater, and is not repeated herein.
And step 202, the controller drives the stored water in the main water channel and the return water channel to circularly flow through the water pump, and the stored water is sterilized through the sterilizing device.
In implementation, after the controller 8 receives the sterilization start instruction, the water pump 2 can drive the stored water in the main water path and the return water path to circularly flow, and the stored water is sterilized by the sterilization device 4.
And step 203, when the sterilization task amount is reached, the controller stops the water pump and the sterilization device.
In practice, when the sterilization task amount is reached, the controller 8 may stop the water pump 2 and the sterilization device 4 to end the sterilization. Optionally, the controller 8 determines whether the sterilization task amount is reached according to different sterilization task amounts in step 201, and the processing procedure is as follows.
The first method is to take the sterilization task amount as the product of the target sterilization coefficient and the sterilization unit time length. The controller 8 may start the timer after receiving the sterilization start instruction. When the timer reaches the product of the target sterilization factor and the sterilization unit time length, the controller 8 may determine that the sterilization task amount is reached.
And the second mode is that the sterilization task amount is the product of the target sterilization coefficient and the sterilization unit water flow. After the controller 8 receives the sterilization starting instruction, the water flow can be detected in real time through the water flow sensing device 3. When the total water flow detected by the water flow sensing device 3 reaches the product of the target sterilization coefficient and the sterilization unit water flow, the controller 8 may determine that the sterilization task amount is reached.
As an alternative embodiment, the gas water heater can detect the sterilization unit time length, as shown in FIG. 5, and the specific processing procedure is as follows.
Step 501, the controller responds to a preheating starting instruction, detects a first water temperature of stored water through a water inlet temperature probe, and drives the stored water in the main water path and the water return water path to flow circularly through the water pump.
In practice, when the user needs to warm up the gas water heater, the user may click the warm-up function key 72 on the operation display 7 to start the warm-up. Accordingly, the controller 8 receives the warm-up start command. At this time, the controller 8 detects a first water temperature (i.e., a water temperature when heating is not performed) of the stored water by the water inlet temperature probe 6 in response to the warm-up start instruction, and drives the stored water in the main water path and the return water path to circulate and flow by the water pump 2. Meanwhile, the controller 8 can also control the gas water heater to ignite to preheat the stored water.
Step 502, when the water temperature difference value between the first water temperature and the second water temperature of the stored water detected by the water inlet temperature probe reaches a preset water temperature difference value threshold, the controller determines the current preheating time length as the sterilization unit time length.
In implementation, the controller 8 can detect the water temperature of the stored water in real time through the water inlet temperature probe 6. When the difference between the second water temperature (namely the heated water temperature) of the stored water detected by the water inlet temperature probe 6 and the first water temperature reaches a preset water temperature difference threshold value, the stored water circulates for a circle in the main water path and the return water path. At this time, the controller 8 may determine the current preheating time period as the sterilization unit time period. The water temperature difference threshold may be set by a technician, and the embodiment of the present application is not limited. Preferably, the water temperature difference threshold may be set to 2 to 5 ℃.
Optionally, the controller may further detect a water flow rate of the stored water through the water flow sensing device, and determine a product of a current preheating time and the water flow rate as a unit water flow rate of sterilization.
In implementation, when the controller 8 drives the water storage in the main water path and the return water path to circularly flow through the water pump 2, the water flow rate of the stored water can be further detected through the water flow sensing device 3. When the controller 8 determines the current preheating time, the product of the current preheating time and the water flow can be determined as the sterilization unit water flow.
The embodiment of the application provides a control method of a gas water heater. This gas heater includes: the gas water heater comprises a gas water heater body, a water pump, a sterilizing device and a controller, wherein the water pump and the sterilizing device are installed on a main water path in the gas water heater body, and a water outlet and a water inlet of the main water path are connected through a water return path. The controller responds to the sterilization starting instruction, obtains a target sterilization coefficient, and determines sterilization task amount according to the target sterilization coefficient. Then, the controller drives the stored water in the main water channel and the return water channel to circularly flow through the water pump, and the stored water is sterilized through the sterilizing device. Thereafter, when the sterilization task amount is reached, the controller stops the water pump and the sterilization apparatus. Therefore, the gas water heater can sterilize harmful bacteria breeding in the pipeline.
The embodiment of this application still provides a gas heater, as shown in fig. 1, this gas heater includes: the gas water heater comprises a gas water heater body 1, a water pump 2, a sterilizing device 4 and a controller 8, wherein the water pump 2 and the sterilizing device 4 are installed on a main water path in the gas water heater body 1, and a water outlet and a water inlet of the main water path are connected through a water return path; wherein the content of the first and second substances,
the controller 8 is used for responding to the sterilization starting instruction, acquiring a target sterilization coefficient and determining sterilization task amount according to the target sterilization coefficient;
the controller 8 is also used for driving the stored water in the main water path and the return water path to circularly flow through the water pump 2 and sterilizing the stored water through the sterilizing device 4;
and the controller 8 is also used for stopping the water pump 2 and the sterilizing device 4 when the sterilizing task amount is reached.
As an alternative embodiment, the controller 8 is configured to determine a product of the target sterilization coefficient and the sterilization unit time length as the sterilization task amount; the unit time length of sterilization is the time length required by the water stored in the main water path and the return water path for circulating and flowing for one circle.
As an alternative embodiment, the controller 8 is configured to determine a product of the target sterilization coefficient and the sterilization unit water flow rate as the sterilization task amount; the water flow of the sterilization unit is the water flow of the water stored in the main water channel and the return water channel which circularly flows for a circle.
As an optional implementation manner, the controller 8 is configured to obtain a target sterilization interval duration, and query a target sterilization coefficient corresponding to the target sterilization interval duration in a pre-stored correspondence relationship between the sterilization interval duration and the sterilization coefficient.
As an optional embodiment, the gas water heater further comprises an operation display for acquiring a target sterilization coefficient set by a user in response to a sterilization coefficient setting instruction of the user, and sending the target sterilization coefficient to the controller 8.
As an optional implementation manner, the gas water heater further comprises an operation display, which is used for responding to a sterilization gear setting instruction of a user, acquiring a target sterilization gear set by the user, and sending the target sterilization gear to the controller 8.
The controller 8 is further configured to query a target sterilization coefficient corresponding to the target sterilization gear in a pre-stored correspondence between the sterilization gear and the sterilization coefficient.
As an optional embodiment, the gas water heater further comprises an inlet water temperature probe;
the controller 8 is used for responding to a preheating starting instruction, detecting a first water temperature of stored water through the water inlet temperature probe, and driving the stored water in the main water path and the water return water path to circularly flow through the water pump 2;
and the controller 8 is further configured to determine the current preheating time period as the sterilization unit time period when the water temperature difference value between the first water temperature and the second water temperature of the stored water detected by the water inlet temperature probe reaches a preset water temperature difference value threshold value.
As an optional embodiment, the gas water heater further comprises a water flow sensing device;
the controller 8 is also used for detecting the water flow of the stored water through the water flow sensing device;
and the controller 8 is also used for determining the product of the current preheating time and the water flow as the sterilization unit water flow.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (16)
1. A control method of a gas water heater, characterized in that the gas water heater comprises: the gas water heater comprises a gas water heater body, a water pump, a sterilizing device and a controller, wherein the water pump and the sterilizing device are installed on a main water path in the gas water heater body, a water outlet and a water inlet of the main water path are connected through a return water path, and the method comprises the following steps:
the controller responds to a sterilization starting instruction, obtains a target sterilization coefficient, and determines sterilization task amount according to the target sterilization coefficient;
the controller drives the stored water in the main water path and the water return water path to circularly flow through the water pump, and the stored water is sterilized through the sterilizing device;
when the sterilization task amount is reached, the controller stops the water pump and the sterilization device.
2. The control method of a gas water heater according to claim 1, wherein the determining a sterilization task amount according to the target sterilization coefficient includes:
the controller determines the product of the target sterilization coefficient and the unit time length of sterilization as the sterilization task amount; the unit time length of sterilization is the time length required by the stored water to circularly flow for one circle in the main water path and the return water path.
3. The control method of a gas water heater according to claim 1, wherein the determining a sterilization task amount according to the target sterilization coefficient includes:
the controller determines the product of the target sterilization coefficient and the sterilization unit water flow as the sterilization task amount; the sterilization unit water flow is the water flow corresponding to the circle of the water stored in the main water path and the return water path.
4. The control method of a gas water heater according to claim 1, wherein the obtaining a target sterilization coefficient includes:
the controller acquires a target sterilization interval duration and inquires the target sterilization coefficient corresponding to the target sterilization interval duration in a pre-stored corresponding relation between the sterilization interval duration and the sterilization coefficient.
5. The control method of a gas water heater according to claim 1, wherein the gas water heater further comprises an operation display, and the obtaining of the target sterilization coefficient comprises:
the operation display responds to a sterilization coefficient setting instruction of a user, obtains the target sterilization coefficient set by the user, and sends the target sterilization coefficient to the controller.
6. The control method of a gas water heater according to claim 1, wherein the gas water heater further comprises an operation display, and the obtaining of the target sterilization coefficient comprises:
the operation display responds to a sterilization gear setting instruction of a user, obtains a target sterilization gear set by the user, and sends the target sterilization gear to the controller.
And the controller inquires the target sterilization coefficient corresponding to the target sterilization gear in the pre-stored corresponding relation between the sterilization gear and the sterilization coefficient.
7. The method of controlling a gas water heater of claim 1, further comprising an inlet water temperature probe, the method further comprising:
the controller responds to a preheating starting instruction, detects a first water temperature of the stored water through the water inlet temperature probe, and drives the stored water in the main water path and the water return water path to circularly flow through the water pump;
when the water temperature difference value of the second water temperature of the stored water and the first water temperature detected by the water inlet temperature probe reaches a preset water temperature difference value threshold value, the controller determines the current preheating time length as the sterilization unit time length.
8. The method of controlling a gas water heater according to claim 7, further comprising a water flow sensing device, the method further comprising:
the controller detects the water flow of the stored water through the water flow sensing device;
and the controller determines the product of the current preheating time and the water flow as the sterilization unit water flow.
9. A gas water heater, comprising: the gas water heater comprises a gas water heater body, a water pump, a sterilization device and a controller, wherein the water pump and the sterilization device are arranged on a main water path in the gas water heater body, and a water outlet and a water inlet of the main water path are connected through a return water path; wherein the content of the first and second substances,
the controller is used for responding to a sterilization starting instruction, acquiring a target sterilization coefficient and determining sterilization task amount according to the target sterilization coefficient;
the controller is also used for driving the stored water in the main water channel and the water return water channel to circularly flow through the water pump and sterilizing the stored water through the sterilizing device;
the controller is also used for stopping the water pump and the sterilizing device when the sterilizing task amount is reached.
10. The gas water heater of claim 9, wherein the controller is configured to determine the sterilization task amount as a product of the target sterilization coefficient and a sterilization unit time length; the unit time length of sterilization is the time length required by the stored water to circularly flow for one circle in the main water path and the return water path.
11. The gas water heater of claim 9, wherein the controller is configured to determine the sterilization task amount as a product of the target sterilization factor and a sterilization unit water flow amount; the sterilization unit water flow is the water flow corresponding to the circle of the water stored in the main water path and the return water path.
12. The gas water heater of claim 9, wherein the controller is configured to obtain a target sterilization interval duration, and query the target sterilization coefficient corresponding to the target sterilization interval duration in a pre-stored correspondence between the sterilization interval duration and the sterilization coefficient.
13. The gas water heater of claim 9, further comprising an operation display for acquiring the target sterilization coefficient set by a user in response to a sterilization coefficient setting instruction of the user and transmitting the target sterilization coefficient to the controller.
14. The gas water heater of claim 9, further comprising an operation display for acquiring a target sterilization gear set by a user in response to a sterilization gear setting instruction of the user and transmitting the target sterilization gear to the controller.
The controller is further configured to query the target sterilization coefficient corresponding to the target sterilization gear in a pre-stored correspondence between sterilization gears and sterilization coefficients.
15. The gas water heater of claim 9, further comprising an inlet water temperature probe;
the controller is used for responding to a preheating starting instruction, detecting a first water temperature of the stored water through the water inlet temperature probe, and driving the stored water in the main water path and the water return water path to circularly flow through the water pump;
the controller is further used for determining the current preheating time length as the sterilization unit time length when the water temperature difference value of the first water temperature and the second water temperature of the stored water detected by the water inlet temperature probe reaches a preset water temperature difference value threshold value.
16. The gas water heater of claim 15, further comprising a water flow sensing device;
the controller is also used for detecting the water flow of the stored water through the water flow sensing device;
the controller is also used for determining the product of the current preheating time and the water flow as the sterilization unit water flow.
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Application publication date: 20211015 |