CN112944669A - Water heater and capacity increasing control method thereof - Google Patents
Water heater and capacity increasing control method thereof Download PDFInfo
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- CN112944669A CN112944669A CN202110351326.9A CN202110351326A CN112944669A CN 112944669 A CN112944669 A CN 112944669A CN 202110351326 A CN202110351326 A CN 202110351326A CN 112944669 A CN112944669 A CN 112944669A
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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
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/18—Water-storage heaters
- F24H1/20—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes
- F24H1/201—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply
- F24H1/202—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply with resistances
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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
- F24H9/0005—Details for water 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
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1818—Arrangement or mounting of electric heating means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
- F24H9/2021—Storage heaters
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- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The embodiment of the application provides a water heater and a capacity increasing control method thereof, relates to the technical field of electronics, and is used for improving the heating efficiency of the water heater and increasing the output quantity of hot water. The method comprises the following steps: starting a capacity increasing mode, and determining the water outlet flow or the water inlet flow of the water heater; when the water outlet flow or the water inlet flow is larger than or equal to a set value, setting the heating temperature of the water heater as a first target temperature; the first target temperature is greater than a set temperature, and the set temperature is the heating temperature actually set by the water heater; if the first temperature is lower than the first target temperature, the first heating pipe is started to enable the water temperature in the water heater to reach the first target temperature; the first temperature is the temperature of the water heater inner container. The application is used for hot water capacity increasing of a water heater.
Description
Technical Field
The application relates to the technical field of electronics, in particular to a water heater and a capacity increasing control method thereof.
Background
The water heater is one of household appliances which are commonly used in families at present, and can provide hot water for users in cold winter. However, the existing water heater in the market generally has the problem of low heating efficiency, and when a user uses a large amount of hot water, the hot water supply amount of the water heater cannot meet the use requirement of the user due to low heating efficiency, so that the use experience of the user is poor.
Disclosure of Invention
The embodiment of the application provides a water heater and a capacity increasing control method thereof, which are used for improving the heating efficiency of the water heater and increasing the output quantity of hot water.
In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions:
in a first aspect, a method for controlling capacity increase of a water heater is provided, including: starting a capacity increasing mode, and determining the water outlet flow or the water inlet flow of the water heater; when the water outlet flow or the water inlet flow is larger than or equal to a set value, setting the heating temperature of the water heater as a first target temperature; the first target temperature is greater than a set temperature, and the set temperature is the heating temperature actually set by the water heater; if the first temperature is lower than the first target temperature, the first heating pipe is started to enable the water temperature in the water heater to reach the first target temperature; the first temperature is the temperature of the water heater inner container.
In some embodiments, in combination with the first aspect, the water heater further includes a second heating pipe, the first heating pipe is disposed at an upper portion of the inner container, and the second heating pipe is disposed at a lower portion of the inner container; when the flow of water or the inflow of water is greater than or equal to the setting value, after setting the heating temperature of water heater to first target temperature, still include:
if the first temperature is lower than the second temperature, the first heating pipe is opened, and the second heating pipe is closed; the second temperature is less than the first target temperature and greater than the set temperature; and if the first temperature is higher than the second temperature and lower than the first target temperature, the second heating pipe is started, and the first heating pipe is closed.
In some embodiments, in combination with the first aspect, when the outlet water flow rate or the inlet water flow rate is less than a set value, the heating temperature of the water heater is set to a second target temperature; the second target temperature is greater than the set temperature and less than the first target temperature; and if the first temperature is lower than the second target temperature, starting the first heating pipe to enable the water temperature in the water heater to reach the second target temperature.
In some embodiments, in combination with the first aspect, the water heater further includes a second heating pipe, the first heating pipe is disposed at an upper portion of the inner container, and the second heating pipe is disposed at a lower portion of the inner container; when the water outflow or the water inflow is less than the set value, after the heating temperature of the water heater is set to the second target temperature, the method further comprises the following steps:
and if the first temperature is lower than the second target temperature, the second heating pipe is started, and the first heating pipe is closed.
In a second aspect, a water heater is provided, comprising: the device comprises a main control board, a flow sensor, a temperature sensor and a first heating pipe; the flow sensor is arranged at a water inlet or a water outlet of the water heater and is used for detecting the water inlet flow or the water outlet flow of the water heater; the temperature sensor is arranged in the water heater and used for detecting the water temperature in the water heater; the first heating pipe is arranged in the water heater and used for heating water stored in the water heater; the main control board is connected with the flow sensor, the temperature sensor and the first heating pipe and is used for controlling the heating pipe to work according to inflow or outflow and the water temperature in the water heater.
In some embodiments, with reference to the second aspect, the water heater further includes a liner disposed in the main frame of the water heater for storing water; the first heating pipe is arranged inside the inner container, the temperature sensor is arranged inside the inner container, and the temperature sensor is used for detecting the temperature of the inner container of the water heater.
In some embodiments, in combination with the second aspect, the flow sensor determines the water outlet flow rate or the water inlet flow rate of the water heater when the water heater is in the capacity expansion mode; when the water outlet flow or the water inlet flow determined by the flow sensor is larger than or equal to a set value, the main control board sets the heating temperature of the water heater to be a first target temperature; the first target temperature is greater than a set temperature, and the set temperature is the heating temperature actually set by the water heater; if the first temperature determined by the temperature sensor is lower than the first target temperature, the main control board starts the first heating pipe so as to enable the water temperature in the water heater to reach the first target temperature; the first temperature is the temperature of the water heater inner container.
In some embodiments, with reference to the second aspect, the water heater further includes a second heating pipe, the first heating pipe is disposed at an upper portion of the inner container, and the second heating pipe is disposed at a lower portion of the inner container; when the main control board sets the heating temperature of the water heater to be a first target temperature, if the first temperature determined by the temperature sensor is lower than a second temperature, the main control board starts the first heating pipe and closes the second heating pipe; the second temperature is less than the first target temperature and greater than the set temperature; if the first temperature determined by the temperature sensor is higher than the second temperature and lower than the first target temperature, the main control board starts the second heating pipe and closes the first heating pipe.
In some embodiments, in combination with the second aspect, the flow sensor determines the water outlet flow rate or the water inlet flow rate of the water heater when the water heater is in the capacity expansion mode; if the water outlet flow or the water inlet flow determined by the flow sensor is smaller than a set value, the main control board sets the heating temperature of the water heater to be a second target temperature; the second target temperature is greater than the set temperature and less than the first target temperature; the first target temperature is greater than a set temperature, and the set temperature is the heating temperature actually set by the water heater; if the first temperature determined by the flow sensor is lower than the second target temperature, the main control board starts the first heating pipe so as to enable the water temperature in the water heater to reach the second target temperature; the first temperature is the temperature of the water heater inner container.
In some embodiments, with reference to the second aspect, the water heater further includes a second heating pipe, the first heating pipe is disposed at an upper portion of the inner container, and the second heating pipe is disposed at a lower portion of the inner container; when the main control board sets the heating temperature of the water heater to be a second target temperature, if the first temperature determined by the flow sensor is lower than the second target temperature, the second heating pipe is started, and the first heating pipe is closed.
According to the capacity increasing control method of the water heater, the capacity increasing mode is added to the water heater, and in the capacity increasing mode, if the water consumption of the water heater is large, the water heater can set a target temperature, wherein the target temperature is higher than the set temperature of a user. Therefore, even if the water temperature in the water heater reaches the set temperature, the water heater still continues to heat the water in the water heater through the heating pipe, so that the water temperature in the water heater reaches the target temperature. When the hot water in the water heater is heated to the target temperature from the set temperature, more cold water can be heated to the set temperature, so that the output quantity of the hot water is increased, the capacity increasing effect on the hot water in the water heater is achieved, more hot water is provided for users, and the water demand of the users is met.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a water heater according to an embodiment of the present disclosure;
FIG. 2 is a schematic view of an actual structure of a water heater according to an embodiment of the present disclosure;
fig. 3 is a second schematic view of an actual structure of a water heater according to an embodiment of the present disclosure;
fig. 4 is a third schematic view of an actual structure of a water heater according to an embodiment of the present disclosure;
fig. 5 is one of the capacity increase control methods of a water heater according to the embodiment of the present application;
fig. 6 is a second schematic structural diagram of a water heater according to an embodiment of the present disclosure;
fig. 7 is a second method for controlling the capacity increase of a water heater according to the embodiment of the present application;
fig. 8 is a third method for controlling the capacity increase of a water heater according to the embodiment of the present disclosure;
fig. 9 is a fourth method for controlling the capacity increase of a water heater according to an embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that in the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.
For the convenience of clearly describing the technical solutions of the embodiments of the present application, in the embodiments of the present application, the terms "first", "second", and the like are used for distinguishing the same items or similar items with basically the same functions and actions, and those skilled in the art can understand that the terms "first", "second", and the like are not limited in number or execution order.
Although the current water heater can meet daily washing requirements, when a plurality of people need hot water, the hot water stored in the water heater cannot meet the requirements, so that the use experience of a user on the water heater is poor.
Aiming at the problems, the hot water output quantity of the water heater can be improved, so that more hot water can be provided, and the requirements of users can be met. In the prior art, methods for increasing the hot water output of a water heater include various methods, such as increasing the heating power of the water heater, increasing the capacity of the water heater, optimizing the heating pipe structure of the water heater, optimizing the heating control logic of the water heater, and the like.
Further, for the mode of improving the hot water output quantity by increasing the heating power of the water heater, the heating rate of the water heater can be influenced by the heating power of the water heater, and the higher the heating rate is, the water heater can heat more water in the same time period, so that the hot water output quantity of the water heater is improved. As for the mode of improving the hot water output quantity by increasing the capacity of the water heater, the capacity of the water heater is increased, and simultaneously, the hot water quantity stored in the water heater can be provided, so that the hot water output quantity of the water heater is improved. For the mode of improving the hot water output quantity by optimizing the heating pipe structure of the water heater, the purpose of improving the hot water output quantity is actually achieved by improving the efficiency of converting electric energy into heat energy. For the mode of improving the hot water output quantity by optimizing the heating control logic of the water heater, a user can set a target set temperature, when the water temperature in the water heater is lower than the target set temperature, the heating pipe is started to heat until the water temperature reaches the target set temperature, and then the heating pipe is closed; and when the temperature difference between the target set temperature and the water temperature inside the water heater is greater than the set difference value, the heating pipe is opened again. The heating pipe can repeatedly provide heat for the water heater by setting the difference value so as to improve the output quantity of hot water.
Although there are various methods of increasing the hot water output of a water heater, these methods have corresponding limitations. For example, when the heating power of the water heater is increased, the current borne by the power line of the water heater is increased, the heating condition is more serious, and further, the fire hazard is easily caused; and because the total power consumption of a common household also has certain limitation, the overload tripping problem of a household circuit is easily caused when the heating power of the water heater is increased. For another example, when the volume of the water heater is increased, the difficulty of installation and transportation of the water heater is increased, and a larger space is occupied. For another example, when the heating pipe structure is optimized, although the hot water output of the water heater can be increased, the increase amount thereof also has a certain limit, and the hot water demand of multiple people cannot be met. For another example, when the heating control logic is optimized, since the water temperature inside the water heater changes in a first-level and then steep trend, when the water temperature drops by a set difference value and then the heating pipe is opened, the hot water amount inside the water heater cannot meet the user requirement, and the user still has no hot water supply for a while in use.
As described above, although the methods for increasing the hot water output of the water heater include various methods, the effect of increasing the hot water output directly according to the above methods is not desirable since the methods include some corresponding limitations.
In order to solve the above problem, an embodiment of the present application provides a water heater, as shown in fig. 1, a water heater 00 includes a main control board 01, a flow sensor 02, a temperature sensor 03, and a first heating pipe 04.
The flow sensor 02 is disposed at a water inlet or a water outlet of the water heater 00 and is configured to detect a water inflow or a water outflow of the water heater 00.
The temperature sensor 03 is disposed inside the water heater 00 and is configured to detect a water temperature inside the water heater 00.
The first heating pipe 04 is disposed inside the water heater 00, and is used for heating water stored inside the water heater 00.
The main control board 01 is connected with the flow sensor 02, the temperature sensor 03 and the first heating pipe 04, and is used for controlling the operation of the heating pipe 04 according to the inflow or outflow and the water temperature inside the water heater 00.
It should be noted that the above description of the functions of each device is only exemplary, and does not limit the functions thereof. For example, the main control board may further receive functions of a user, such as a temperature setting signal, a power-on signal, and a power-off signal, and these common functions are not described herein, but those skilled in the art should understand that the main control board in the embodiment of the present application may perform all functions of the existing water heater corresponding to the main control board.
In some embodiments, as shown in fig. 2, an actual structural schematic diagram of a water heater is provided, the water heater 00 further includes an inner container 05, and the inner container 05 is disposed in a main body frame 06 of the water heater 00 and used for storing water; first heating pipe 04 sets up inside inner bag 05, and temperature sensor 03 is used for detecting the temperature of water heater inner bag 05.
It should be noted that the schematic structural diagram provided in fig. 2 is only exemplary, and the positions of the respective devices are only exemplary and not limited to the positions. For example, the first heating pipe 04 may also be disposed in the middle of the inner container 05. In the embodiment of the present application, the temperature of the inner container 05 of the water heater 00 detected by the temperature sensor 03 may also be the water temperature of the water stored in the inner container 05, that is, the water temperature in the water heater 00 is detected.
In some embodiments, as shown in fig. 3, the water heater provided in the embodiments of the present application further includes a second heating pipe 07, wherein the first heating pipe 04 is disposed at an upper portion of the inner container 05, and the second heating pipe 07 is disposed at a lower portion of the inner container 05. Of course, the water heater shown in fig. 3 is a single-liner water heater, and in practice, the water heater may also be a double-liner water heater, as shown in fig. 4, the double-liner water heater includes a first liner 051 and a second liner 052, wherein the first heating pipe 04 is disposed in the first liner 051, and the second heating pipe 07 is disposed in the second liner 052.
According to the above water heater, the present application provides a capacity increase control method for a water heater, as shown in fig. 5, the method includes:
s101, starting a capacity increasing mode, and determining the water outlet flow or the water inlet flow of the water heater.
Specifically, the water heater provided by the embodiment of the application comprises a normal mode and a capacity increasing mode, and the capacity increasing control method provided by the application is used for controlling the water heater in the capacity increasing mode. Therefore, the water heater firstly starts the capacity increasing mode, and determines the water outlet flow or the water inlet flow of the water heater at the moment so as to determine the water consumption of the water heater at the moment and further judge the control logic of the water heater.
It should be noted that the outlet water flow rate is the water amount used by the user, and since the water amount stored in the water heater is constant, when a certain amount of hot water flows out from the water heater, a corresponding amount of cold water needs to be supplied to the water heater, so the inlet water flow rate can also indicate the water amount used by the user. Further, the capacity increasing mode is used for increasing the hot water output of the water heater, for example, in the normal mode, the water heater can supply hot water in a first time period, and in the capacity increasing mode, the water heater can supply hot water in a second time period; where the first time period is less than the second time period.
In some embodiments, the normal mode of the water heater is used in a situation where the demand of hot water amount is small for the user, so that when the water heater is turned on in the normal mode, the water consumption of the water heater can be no longer detected (i.e., the water flow or the inlet water flow is no longer detected).
S102, when the water outlet flow or the water inlet flow is larger than or equal to a set value, the heating temperature of the water heater is set to be a first target temperature.
The first target temperature is greater than a set temperature, and the set temperature is a heating temperature actually set by the water heater.
Specifically, the set value is a fixed water consumption threshold, and when the water outlet flow or the water inlet flow of the water heater is greater than or equal to the set value, it can be determined that a user uses a large amount of hot water. At this time, the heating temperature of the water heater may be set to the first target temperature to heat the cold water stored in the water heater.
The set temperature is the actual heating temperature set by the user through the main control panel of the water heater, for example, the set temperature may be the heating temperature set by the user through the control panel provided on the water heater when the water heater is turned on. When the first target temperature is actually the production of the water heater, the control logic is built in the main control board, namely when the water heater is started, if the cold water in the water heater is heated to the set temperature, the water heater continues to heat the cold water in the water heater until the water temperature in the water heater reaches the first target temperature. The first target temperature can be changed along with the change of the set temperature, for example, the water heater can set the temperature difference between the first target temperature and the set temperature as a first temperature difference, and when the user sets different set temperatures through the control panel, the water heater can correspondingly set the first target temperature according to the first temperature difference.
Illustratively, the first temperature difference may be 5 ℃. If the set temperature set by the user through the control panel is 40 ℃, the water heater may set the first target temperature to 45 ℃; if the set temperature set by the user through the control panel is 45 deg.c, the water heater may set the first target temperature to 50 deg.c.
S103, if the first temperature is lower than the first target temperature, the first heating pipe is started so that the water temperature in the water heater reaches the first target temperature.
Wherein, the first temperature is the temperature of the inner container of the water heater.
Specifically, since the first target temperature is the final heating temperature of the cold water in the water heater, and the first temperature is the actual water temperature in the water heater, when the first temperature of the hot water stored in the water heater is lower than the first target temperature, the water heater can turn on the first heating pipe, and the first heating pipe continuously provides heat for the water heater to heat the cold water therein, or heat the hot water with the water temperature not reaching the first target temperature.
It should be noted that although the user sets the set temperature through the control panel, in the embodiment of the present application, the cold water in the water heater is actually heated to the first target temperature, so even when the first heating pipe is operated, the first temperature reaches the set temperature, the first heating pipe continues to operate until the water temperature reaches the first target temperature.
Furthermore, the capacity increase control method of the water heater aims at the water heater with a single heating pipe, such as the first heating pipe, and the first heating pipe can be arranged in the middle of the inner container.
In some embodiments, the user can set the set temperature through the control panel when the water heater is turned on in the normal mode, and the water heater does not need to set the target temperature in the normal mode. At the moment, the heating pipe in the water heater heats the cold water in the water heater to a set temperature, and the heating pipe can stop working at the moment; and when the second temperature difference of the hot water in the water heater is reduced, the heating pipe continues to work to heat the cold water in the water heater. Of course, heating cold water here also includes heating hot water whose temperature has not reached the set temperature.
In the embodiment of the application, because the first target temperature is the final heating target of the water heater, when the cold water in the water heater is heated to the set temperature, the first heating pipe continues to work until the temperature of the cold water reaches the first target temperature. In the process that the water temperature in the water heater is increased to the first target temperature from the set temperature, the first heating pipe also heats more cold water to the set temperature, and the set temperature can meet the requirements of users, so that the water heater can provide more available hot water, namely the output quantity of the hot water is improved.
In some embodiments, referring to fig. 3 and 4, the water heater may further include a second heating pipe, as shown in fig. 6, and the main control board may be further connected to the second heating pipe 07 to control the operation of the second heating pipe 07.
As shown in fig. 7, when the water heater includes the first heating pipe and the second heating pipe, if the water outlet flow or the water inlet flow of the water heater is greater than or equal to the set value, and after the heating temperature of the water heater is set to the first target temperature, the method further includes:
and S104, if the first temperature is lower than the second temperature, the first heating pipe is opened, and the second heating pipe is closed.
The second temperature is less than the first target temperature and greater than the set temperature.
S105, if the first temperature is higher than the second temperature and lower than the first target temperature, the second heating pipe is started, and the first heating pipe is closed.
Specifically, because in practice, a heating pipe can meet the heating requirement of the water heater, when two heating pipes are arranged in the water heater, a second temperature can be set, and the opened heating pipe is determined according to the relationship between the first temperature and the second temperature, such as opening the first heating pipe or opening the second heating pipe.
Further, since the density of the hot water is less than that of the cold water, as shown in fig. 3, the hot water is distributed above the inner container, and the cold water is distributed below the inner container; as shown in fig. 4, hot water may be distributed in the first inner container, and cold water may be distributed in the second inner container.
When the user uses the water heater, hot water above the inner container (or the first inner container) is preferentially supplied, and cold water supplied to the water heater is preferentially stored below the inner container (or the second inner container). Therefore, when the water heater includes the first heating pipe and the second heating pipe, the first heating pipe is preferentially turned on to heat the cold water in the water heater, so that hot water can be quickly supplied to a user. In practice, only one heating pipe is needed in the water heater to meet the heating requirement, so that the second heating pipe can be closed while the first heating pipe is opened, or the first heating pipe is closed while the second heating pipe is opened to reduce energy consumption.
In the working process of the water heater, the second temperature is higher than the first temperature and lower than the first target temperature, so that the first heating pipe can be opened and the second heating pipe can be closed to improve the output quantity of hot water when the first temperature is lower than the second temperature. At the moment, the first heating pipe heats cold water above the inner container (or the first inner container), so that hot water can be quickly provided for a user; and the second temperature is higher than the first temperature, so that the hot water output quantity can be increased.
When the first temperature is higher than the second temperature and lower than the first target temperature, the hot water stored in the water heater can meet the hot water requirement of the user, so that the first heating pipe can be closed, and the second heating pipe heats the water heater to continuously provide hot water for the user. At this time, the water heater can also increase the hot water output.
For example, the set temperature may be 40 ℃, the first target temperature may be 50 ℃, and the second temperature may be 45 ℃. If the first temperature is 43 ℃, the first heating pipe can be opened and the second heating pipe can be closed; if the first temperature is 47 ℃, the second heating pipe can be opened and the first heating pipe can be closed.
It should be noted that, because the first target temperature is higher than the set temperature, when the water temperature of the inner container reaches the second temperature, the first heating pipe is switched to the second heating pipe, so that while the hot water output is continuously increased, the hidden danger of scalding caused by the overhigh temperature of the upper part of the inner container (or the first inner container) can be prevented.
In some embodiments, in the above method, only one heating pipe may be turned on to reduce energy consumption of the water heater, and of course, to increase hot water output of the water heater, the water heater may also turn on the first heating pipe and the second heating pipe at the same time. At this time, the water heater can provide more hot water output for the user.
In the embodiment of the present application, although the method provided in steps S101 to S103 can meet the requirement of increasing the hot water output when one heating pipe is provided in the water heater, in order to quickly provide hot water to a user, two heating pipes may be provided in the water heater, and the first heating pipe is preferentially opened, so that hot water output is increased and hot water is quickly provided to the user.
In some embodiments, when the water heater is turned on in the normal mode, if the water heater includes the first heating pipe and the second heating pipe, the water heater can heat cold water through the second heating pipe, and the first heating pipe is continuously turned off. Here, the working process of the first heating pipe may refer to the working process in the normal mode when the water heater includes one heating pipe, and is not described herein again.
In some embodiments, as shown in fig. 8, the method further comprises:
s201, when the water outlet flow or the water inlet flow is smaller than a set value, the heating temperature of the water heater is set to be a second target temperature.
The second target temperature is greater than the set temperature and less than the first target temperature.
Specifically, corresponding to step S102, when the outlet water flow rate or the inlet water flow rate is smaller than the set value, the amount of hot water used by the user is small, and at this time, the heating temperature of the water heater may be set to the second target temperature.
Since the user uses a small amount of hot water at this time, the second target temperature is lower than the first target temperature, and the second target temperature is higher than the set temperature in order to increase the hot water output amount. Since the second target temperature is lower than the first target temperature, when the water heater heats the cold water inside to the second target temperature, the amount of the hot water heated to the set temperature inside the water heater at the same time is less than the amount of the hot water heated to the first target temperature at the same time. At this time, the amount of hot water stored in the water heater to reach the set temperature can already meet the demand of the user.
It should be noted that, the second target temperature may also change with the change of the set temperature, which is the same as the first target temperature, and specifically refer to the method for changing the first target temperature in S102, which is not described herein again.
S202, if the first temperature is lower than the second target temperature, the first heating pipe is started to enable the water temperature in the water heater to reach the second target temperature.
Specifically, referring to step S103, when the first temperature of the hot water stored in the water heater is lower than the second target temperature, the water heater may turn on the first heating pipe, and the first heating pipe continuously provides heat for the water heater to heat the cold water therein, or heat the hot water with a temperature not reaching the second target temperature.
Similar to step S103, in the process of heating the hot water in the water heater from the set temperature to the second target temperature, more cold water can be heated to the set temperature, thereby increasing the hot water output of the water heater.
In some embodiments, as shown in fig. 9, similar to the above steps S104 and S105, when the water heater includes the first heating pipe and the second heating pipe, after the water outlet flow rate or the water inlet flow rate of the water heater is less than the set value and the heating temperature of the water heater has been set to the second target temperature, the method further includes:
s203, if the first temperature is lower than the second target temperature, the second heating pipe is started, and the first heating pipe is closed.
Specifically, at this time, since the user has a small demand for hot water, the water heater may heat the water through the second heating pipe to heat the internal cold water to the second target temperature, so as to increase the output of the hot water, and the specific process may refer to step S103 described above, which is not described herein again.
In some embodiments, if it is required to provide hot water to the user quickly, the first heating pipe may be turned on and the second heating pipe may be turned off. Of course, in some embodiments, the first heating pipe and the second heating pipe may be opened at the same time to further increase the hot water output.
According to the capacity increasing control method of the water heater, the capacity increasing mode is added to the water heater, and in the capacity increasing mode, if the water consumption of the water heater is large, the water heater can set a target temperature, and the target temperature is higher than the set temperature of a user. Therefore, even if the water temperature in the water heater reaches the set temperature, the water heater still continues to heat the water in the water heater through the heating pipe, so that the water temperature in the water heater reaches the target temperature. When the hot water in the water heater is heated to the target temperature from the set temperature, more cold water can be heated to the set temperature, so that the output quantity of the hot water is increased, the capacity increasing effect on the hot water in the water heater is achieved, more hot water is provided for users, and the water demand of the users is met.
According to the capacity-increasing control method of the water heater, the acquisition of corresponding data can be completed by corresponding devices in the water heater, such as a flow sensor for detecting the inflow water flow or the outflow water flow, a temperature sensor for detecting the first temperature and the like; the operation of the heating pipe can be realized by the main control board. The method comprises the following specific steps:
when the water heater starts the capacity increasing mode, the flow sensor determines the water outlet flow or the water inlet flow of the water heater.
When the water outlet flow or the water inlet flow determined by the flow sensor is larger than or equal to a set value, the main control board sets the heating temperature of the water heater to be a first target temperature; the first target temperature is greater than a set temperature, and the set temperature is a heating temperature actually set by the water heater.
If the first temperature determined by the temperature sensor is lower than the first target temperature, the main control board starts the first heating pipe so as to enable the water temperature in the water heater to reach the first target temperature; the first temperature is the temperature of the water heater inner container.
In some embodiments, the water heater further comprises a second heating pipe, the first heating pipe is arranged at the upper part of the inner container, and the second heating pipe is arranged at the lower part of the inner container.
When the main control board sets the heating temperature of the water heater to be a first target temperature, if the first temperature determined by the temperature sensor is lower than a second temperature, the main control board starts the first heating pipe and closes the second heating pipe; the second temperature is less than the first target temperature and greater than the set temperature.
If the first temperature determined by the temperature sensor is higher than the second temperature and lower than the first target temperature, the main control board starts the second heating pipe and closes the first heating pipe.
In some embodiments, the flow sensor determines the outlet or inlet water flow of the water heater when the water heater is in the capacity expansion mode.
If the water outlet flow or the water inlet flow determined by the flow sensor is smaller than a set value, the main control board sets the heating temperature of the water heater to be a second target temperature; the second target temperature is greater than the set temperature and less than the first target temperature; the first target temperature is greater than a set temperature, and the set temperature is a heating temperature actually set by the water heater.
If the first temperature determined by the flow sensor is lower than the second target temperature, the main control board starts the first heating pipe so as to enable the water temperature in the water heater to reach the second target temperature; the first temperature is the temperature of the water heater inner container.
In some embodiments, the water heater further comprises a second heating pipe, the first heating pipe is arranged at the upper part of the inner container, and the second heating pipe is arranged at the lower part of the inner container.
When the main control board sets the heating temperature of the water heater to be a second target temperature, if the first temperature determined by the flow sensor is lower than the second target temperature, the second heating pipe is started, and the first heating pipe is closed.
In the embodiment of the application, the water heater is additionally provided with a capacity increasing mode, and in the capacity increasing mode, if the water consumption of the water heater is large, the water heater can set a target temperature, and the target temperature is higher than the set temperature of a user. Therefore, even if the water temperature in the water heater reaches the set temperature, the water heater still continues to heat the water in the water heater through the heating pipe, so that the water temperature in the water heater reaches the target temperature. When the hot water in the water heater is heated to the target temperature from the set temperature, more cold water can be heated to the set temperature, so that the output quantity of the hot water is increased, the capacity increasing effect on the hot water in the water heater is achieved, more hot water is provided for users, and the water demand of the users is met.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
The foregoing description, for purposes of explanation, has been presented in conjunction with specific embodiments. However, the illustrative discussions above are not intended to be exhaustive or to limit the embodiments to the precise forms disclosed above. Many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles and the practical application, to thereby enable others skilled in the art to best utilize the embodiments and various embodiments with various modifications as are suited to the particular use contemplated.
Claims (10)
1. A capacity increase control method of a water heater is characterized by comprising the following steps:
starting a capacity increasing mode, and determining the water outlet flow or the water inlet flow of the water heater;
when the water outlet flow or the water inlet flow is larger than or equal to a set value, setting the heating temperature of the water heater as a first target temperature; the first target temperature is higher than a set temperature, and the set temperature is the heating temperature actually set by the water heater;
if the first temperature is lower than the first target temperature, a first heating pipe is started to enable the water temperature in the water heater to reach the first target temperature; the first temperature is the temperature of the water heater inner container.
2. The capacity increasing control method of the water heater according to claim 1, wherein the water heater further comprises a second heating pipe, the first heating pipe is arranged at the upper part of the inner container, and the second heating pipe is arranged at the lower part of the inner container; when the water outflow or the water inflow is greater than or equal to a set value, after the heating temperature of the water heater is set to a first target temperature, the method further comprises:
if the first temperature is lower than the second temperature, the first heating pipe is started, and the second heating pipe is closed; the second temperature is less than the first target temperature and greater than the set temperature;
and if the first temperature is higher than the second temperature and lower than the first target temperature, the second heating pipe is started, and the first heating pipe is closed.
3. The method of claim 1, further comprising:
when the water outlet flow or the water inlet flow is smaller than the set value, the heating temperature of the water heater is set to be a second target temperature; the second target temperature is greater than the set temperature and less than the first target temperature;
and if the first temperature is lower than the second target temperature, starting the first heating pipe so as to enable the water temperature in the water heater to reach the second target temperature.
4. The capacity increasing control method of the water heater according to claim 3, wherein the water heater further comprises a second heating pipe, the first heating pipe is arranged at the upper part of the inner container, and the second heating pipe is arranged at the lower part of the inner container; when the water outlet flow or the water inlet flow is smaller than the set value, after the heating temperature of the water heater is set to a second target temperature, the method further comprises the following steps:
and if the first temperature is lower than the second target temperature, the second heating pipe is started, and the first heating pipe is closed.
5. A water heater, comprising: the device comprises a main control board, a flow sensor, a temperature sensor and a first heating pipe;
the flow sensor is arranged at a water inlet or a water outlet of the water heater and is used for detecting the water inlet flow or the water outlet flow of the water heater;
the temperature sensor is arranged in the water heater and used for detecting the water temperature in the water heater;
the first heating pipe is arranged in the water heater and used for heating water stored in the water heater;
the main control board is connected with the flow sensor, the temperature sensor and the first heating pipe and is used for controlling the heating pipe to work according to the water inflow or the water outflow and the water temperature in the water heater.
6. The water heater of claim 5, further comprising an inner container disposed within the main body frame of the water heater for storing water; the first heating pipe is arranged inside the inner container, the temperature sensor is arranged inside the inner container, and the temperature sensor is used for detecting the temperature of the inner container of the water heater.
7. The water heater of claim 6, wherein the flow sensor determines an outlet flow rate or an inlet flow rate of the water heater when the water heater is in a capacity-increasing mode;
when the water outlet flow or the water inlet flow determined by the flow sensor is larger than or equal to a set value, the main control board sets the heating temperature of the water heater to be a first target temperature; the first target temperature is higher than a set temperature, and the set temperature is the heating temperature actually set by the water heater;
if the first temperature determined by the temperature sensor is lower than the first target temperature, the main control board starts a first heating pipe so as to enable the water temperature in the water heater to reach the first target temperature; the first temperature is the temperature of the water heater inner container.
8. The water heater of claim 7, further comprising a second heating pipe, wherein the first heating pipe is disposed at an upper portion of the inner container, and the second heating pipe is disposed at a lower portion of the inner container;
when the main control board sets the heating temperature of the water heater to be the first target temperature, if the first temperature determined by the temperature sensor is lower than a second temperature, the main control board opens the first heating pipe and closes the second heating pipe; the second temperature is less than the first target temperature and greater than the set temperature;
if the first temperature determined by the temperature sensor is higher than the second temperature and lower than the first target temperature, the main control board turns on the second heating pipe and turns off the first heating pipe.
9. The water heater of claim 6, wherein the flow sensor determines an outlet flow rate or an inlet flow rate of the water heater when the water heater is in a capacity-increasing mode;
if the water outlet flow or the water inlet flow determined by the flow sensor is smaller than a set value, the main control board sets the heating temperature of the water heater to be a second target temperature; the second target temperature is greater than the set temperature and less than the first target temperature; the first target temperature is higher than a set temperature, and the set temperature is the heating temperature actually set by the water heater;
if the first temperature determined by the flow sensor is lower than the second target temperature, the main control board starts the first heating pipe so as to enable the water temperature in the water heater to reach the second target temperature; the first temperature is the temperature of the water heater inner container.
10. The water heater of claim 9, further comprising a second heating pipe, wherein the first heating pipe is disposed at an upper portion of the inner container, and the second heating pipe is disposed at a lower portion of the inner container;
when the main control board sets the heating temperature of the water heater to the second target temperature, if the first temperature determined by the flow sensor is lower than the second target temperature, the second heating pipe is opened, and the first heating pipe is closed.
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Application publication date: 20210611 |