CN111197861B - Control method of gas water heater, gas water heater and readable storage medium - Google Patents
Control method of gas water heater, gas water heater and readable storage medium Download PDFInfo
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- CN111197861B CN111197861B CN201811373682.5A CN201811373682A CN111197861B CN 111197861 B CN111197861 B CN 111197861B CN 201811373682 A CN201811373682 A CN 201811373682A CN 111197861 B CN111197861 B CN 111197861B
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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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Abstract
The invention provides a control method of a gas water heater, the gas water heater and a readable storage medium, wherein the method comprises the following steps: obtaining deviation dCn between the detected hot water yield C0n of the gas water heater and a reference hot water yield C01, and storing the deviation dCn; calculating the current hot water yield Cb of the gas water heater according to the deviation dCn; and comparing the current hot water yield Cb with the reference hot water yield C01, and controlling the rotating speed of a fan of the gas water heater to adjust according to the comparison result. According to the invention, the deviation dCn is calculated, the deviation dCn is used for calculating the current hot water yield Cb of the gas water heater, so that the current hot water yield Cb is more accurate, further, the current hot water yield Cb is compared with the reference hot water yield C01 of the gas water heater, and the rotating speed of the fan of the gas water heater is controlled to be adjusted according to the comparison result, so that the gas water heater can be ensured to reach proper combustion conditions in the combustion operation process, a good combustion condition is ensured, and the use safety of the gas water heater is improved.
Description
Technical Field
The invention relates to the technical field of gas equipment, in particular to a control method of a gas water heater, the gas water heater and a computer readable storage medium.
Background
At present, a gas water heater becomes a main hot water supply appliance in the market, however, the sources of gas sources for supplying combustion are diversified, the gas components are greatly different, and the problems of incomplete combustion, vibration combustion, high waste gas emission and the like are easily caused.
The existing gas water heater generates heat required by hot water by controlling supplied gas flow in the working process, and provides corresponding air volume for the gas water heater with an air blower by matching with the corresponding fan rotating speed, so that the gas water heater executes combustion operation under good combustion conditions. However, since there is a deviation between the water temperature measured by the water temperature detection unit of the gas water heater and the water flow rate measured by the water supply unit and the actual water temperature and water flow rate, a deviation is generated between the current hot water yield of the gas water heater and the hot water yield calculated by the water temperature measured by the water temperature detection unit and the water flow rate measured by the water supply unit, so that the current hot water yield is inaccurate.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
To this end, a first aspect of the invention provides a control method for a gas water heater.
A second aspect of the present invention provides a gas water heater.
A third aspect of the invention provides a computer-readable storage medium.
In view of the above, a first aspect of the present invention provides a control method for a gas water heater, the control method for a gas water heater including: obtaining deviation dCn between the detected hot water yield C0n of the gas water heater and a reference hot water yield C01, and storing the deviation dCn; calculating the current hot water yield Cb of the gas water heater according to the deviation dCn; and comparing the current hot water yield Cb with the reference hot water yield C01, and controlling the rotating speed of a fan of the gas water heater to adjust according to the comparison result.
The control method of the gas water heater comprises the steps of firstly, obtaining deviation dCn between detected hot water yield C0n of the gas water heater and reference hot water yield C01, storing deviation dCn, further, calculating current hot water yield Cb of the gas water heater according to the deviation dCn, and enabling the value of the current hot water yield Cb to be more accurate by calculating deviation dCn and using deviation dCn for calculating current hot water yield Cb of the gas water heater; further, comparing the current hot water yield Cb with a reference hot water yield C01 of the gas water heater, and controlling the rotating speed of a fan of the gas water heater to adjust according to the comparison result, specifically, if the current hot water yield Cb is in normal combustion data after being compared with the reference hot water yield C01, the rotating speed of the fan does not need to be adjusted, and the gas water heater is controlled to continue to operate according to the current state; if the current hot water yield Cb is in the abnormal combustion data after being compared with the reference hot water yield C01, the gas water heater is controlled to automatically adjust the rotating speed of the fan or stop combustion, so that when the gas water heater uses different types of gas, self-judgment, self-adjustment and self-adaptation can be carried out according to the difference of various types of gas, and the different types of gas can be distinguished more efficiently and accurately; meanwhile, the introduced gas can be properly mixed with proper amount of air in the combustion operation process of the gas water heater, proper combustion conditions are achieved, good combustion conditions are ensured, the gas in the gas water heater is combusted more sufficiently, the problems that vibration combustion is caused due to insufficient gas combustion, a large amount of polluted gas is discharged after combustion and the like are avoided, and the use safety of the gas water heater is further improved.
In addition, the control method of the gas water heater provided by the technical scheme of the invention also has the following additional technical characteristics:
in the above technical solution, preferably, the step of obtaining a deviation dCn between the detected hot water yield C0n of the gas water heater and the reference hot water yield C01 and storing the deviation dCn includes: under the reference condition, calculating a reference hot water yield C01 of the reference gas water heater; under the reference condition, calculating a detected hot water yield C0n according to the detected inlet water temperature and the detected water temperature sent by the water temperature detection unit of the gas water heater and the detected water flow rate sent by the water supply unit of the gas water heater; deviation dCn, dCn ═ C01-C0n of the detected hot water yield C0n from the reference hot water yield C01 was calculated, and deviation dCn was stored.
In the technical scheme, a deviation dCn between a detected hot water yield C0n of the gas water heater and a reference hot water yield C01 is obtained, and the step of storing the deviation dCn comprises the following steps: firstly, calculating a reference hot water yield C01 of a reference gas water heater under a reference condition, namely setting one gas water heater as the reference gas water heater, controlling the reference gas water heater to operate under the reference condition, and calculating to obtain a reference hot water yield C01 of the reference gas water heater under the reference condition; then, under the reference condition, the detected hot water yield C0n of the gas water heater is calculated from the detected intake water temperature and the detected water temperature transmitted from the water temperature detecting unit of the gas water heater and the detected water flow rate transmitted from the water supply unit of the gas water heater, and further, the difference between the detected hot water yield C0n and the reference hot water yield C01 is calculated to obtain a deviation dCn, dCn-C01-C0 n, and the deviation dCn is stored. Since the detected inlet water temperature, the detected water temperature and the detected water flow rate of the nth gas water heater are different during the operation, the deviation dCn is the difference between the reference value (i.e. the reference hot water yield C01) and the calculated value (i.e. the detected hot water yield C0n) of the hot water yield of the nth gas water heater; by calculating the deviation dCn and using the deviation dCn to calculate the current hot water production rate Cb of the gas water heater, the value of the current hot water production rate Cb is made more accurate.
In any of the above technical solutions, preferably, the reference conditions are: controlling the opening degree of a gas control unit of the gas water heater to be the same as the opening degree of a gas control unit of a reference gas water heater; and controlling the rotating speed of the fan of the gas water heater to be the same as that of the fan of the reference gas water heater.
In the technical scheme, the set reference conditions are as follows: controlling the opening degree of a gas control unit of the gas water heater to be the same as the opening degree of a gas control unit of a reference gas water heater; the rotation speed of the fan of the gas water heater is controlled to be the same as the rotation speed of the fan of the reference gas water heater, so that the reference gas water heater and the gas water heater have the same opening degree of the gas control unit and the same rotation speed of the fan under the reference condition, under the condition that the conditions are the same, the combustion condition and the operation condition of the reference gas water heater and the gas water heater can be judged to be the same, and because the detected inlet water temperature, the detected water temperature and the detected water flow rate which are detected in the working process of the nth gas water heater have differences, the deviation dCn is the difference value between the reference value (namely the reference hot water yield C01) and the calculated value (namely the detected hot water yield C0n) of the hot water yield of the nth gas water heater, further, the current hot water yield Cb of the gas water heater is calculated through the storage deviation dCn and the corresponding deviation dCn, making the value of the current hot water yield Cb more accurate.
In any of the above solutions, preferably, the step of comparing the current hot water yield Cb with the reference hot water yield C01 includes: receiving the target outlet water temperature, and calculating a reference hot water yield C01 according to the current inlet water temperature sent by the water temperature detection unit and the current water flow rate sent by the water supply unit; calculating the current actual hot water yield Cn according to the current water inlet temperature, the current water outlet temperature sent by the water temperature detection unit and the current water flow rate; calculating a current hot water production rate Cb, Cn + dCn, from the current actual hot water production rate Cn and the deviation dCn; and comparing the current hot water yield Cb with the reference hot water yield C01, and controlling the rotating speed of a fan of the gas water heater to adjust according to the comparison result.
In this embodiment, the step of comparing the current hot water yield Cb with the reference hot water yield C01 includes: receiving a preset target outlet water temperature, receiving a current inlet water temperature sent by a water temperature detection unit of the gas water heater and a current water flow rate sent by a water supply unit of the gas water heater, and calculating a reference hot water yield C01 according to the target outlet water temperature, the current inlet water temperature and the current water flow rate, further receiving a current outlet water temperature sent by the water temperature detection unit of the gas water heater, and calculating a current actual hot water yield Cn according to the current inlet water temperature, the current outlet water temperature and the current water flow rate, and further calculating a current hot water yield Cb which is Cn + dCn according to the current actual hot water yield Cn and a corresponding deviation dCn; since the current inlet water temperature, the current outlet water temperature and the current water flow rate detected by the nth gas water heater during the operation process have differences, and the deviation dCn is the difference between the calculated value of the hot water yield of the gas water heater (the current actual hot water yield Cn) and the true value (the current hot water yield Cb), the current hot water yield Cb is Cn + dCn; further, comparing the current hot water yield Cb with a reference hot water yield C01 of the gas water heater, and controlling the rotating speed of a fan of the gas water heater to adjust according to the comparison result, specifically, if the current hot water yield Cb is in normal combustion data after being compared with the reference hot water yield C01, the rotating speed of the fan does not need to be adjusted, and the gas water heater is controlled to continue to operate according to the current state; if the current hot water yield Cb is in the abnormal combustion data after being compared with the reference hot water yield C01, the gas water heater is controlled to automatically adjust the rotating speed of the fan or stop combustion, so that when the gas water heater uses different types of gas, self-judgment, self-adjustment and self-adaptation can be carried out according to the difference of various types of gas, and the different types of gas can be distinguished more efficiently and accurately; meanwhile, the introduced gas can be properly mixed with proper amount of air in the combustion operation process of the gas water heater, proper combustion conditions are achieved, good combustion conditions are ensured, the gas in the gas water heater is combusted more sufficiently, the problems that vibration combustion is caused due to insufficient gas combustion, a large amount of polluted gas is discharged after combustion and the like are avoided, and the use safety of the gas water heater is further improved.
In any of the above embodiments, preferably, the baseline hot water yield C01 is: the product of the difference between the target outlet water temperature and the current inlet water temperature and the current water flow rate; the current actual hot water yield Cn is: the product of the difference between the current leaving water temperature and the current entering water temperature and the current water flow rate.
In this solution, the baseline hot water yield C01 is: the product of the difference between the target outlet water temperature and the current inlet water temperature and the current water flow rate; the current actual hot water yield Cn is: the product of the difference between the current leaving water temperature and the current entering water temperature and the current water flow rate.
In any of the above technical solutions, preferably, before calculating the current actual hot water yield Cn according to the current inlet water temperature, the current outlet water temperature sent by the water temperature detecting unit, and the current water flow rate, the method further includes: reading a preset relation between a prestored hot water yield and the rotating speed of the fan; adjusting the rotating speed of the fan according to the reference hot water yield C01 and a preset relation; and after the rotating speed of the fan is adjusted, the current water outlet temperature is received so as to obtain the current actual hot water yield Cn.
In the technical scheme, before the current actual hot water yield Cn is calculated, the relation between the hot water yield and the rotating speed of the fan is preset according to the test verification in advance, the preset relation is input into a system control unit, and further, the rotating speed of the fan is controlled through the target water outlet temperature and the preset relation input into the system control unit, so that the ratio of air and gas reaches the optimal combustion state of the operation of the gas water heater, the gas combustion in the gas water heater is more sufficient, and the gas water heater is adjusted to the optimal combustion state; further, the rotating speed of the fan is adjusted according to a preset relation, then the current outlet water temperature is received, the current actual hot water yield Cn is obtained through calculation, and the current hot water yield Cb is obtained through calculation according to the current actual hot water yield Cn and the deviation dCn, wherein Cb is Cn + dCn; the difference value of the current hot water yield Cb and the reference hot water yield C01 is the combustion deviation caused by different types of fuel gas, insufficient combustion and other reasons, at the moment, the rotating speed of the fan can be automatically adjusted by the gas water heater according to the combustion deviation, so that the gas water heater enters the optimal combustion state, and the use safety of the gas water heater is ensured.
In any of the above technical solutions, preferably, the specific steps of comparing the current hot water yield Cb with the reference hot water yield C01 and controlling the rotation speed of the fan of the gas water heater to adjust according to the comparison result include: judging whether the absolute value of the difference value between the current hot water yield Cb and the reference hot water yield C01 is greater than a first preset value or not; when the absolute value of the difference value between the current hot water yield Cb and the reference hot water yield C01 is larger than a first preset value, controlling an alarm unit of the gas water heater to give an alarm and/or controlling the gas water heater to stop running; and when the absolute value of the difference value between the current hot water yield Cb and the reference hot water yield C01 is smaller than a first preset value, controlling the gas water heater to operate.
In the technical scheme, the difference value between the current hot water yield Cb and the reference hot water yield C01 is a combustion deviation caused by different types of fuel gas, insufficient combustion and the like, in the working process of the gas water heater, a proper combustion deviation is allowed to occur, that is, the current hot water yield Cb and the reference hot water yield C01 may have a certain difference value, the difference value between the allowed current hot water yield Cb and the reference hot water yield C01 is a first preset value, and a person skilled in the art can reasonably set the first preset value according to actual test verification; therefore, in order to ensure the safe use of the gas water heater, the absolute value of the difference value between the current hot water yield Cb and the reference hot water yield C01 needs to be ensured to be smaller than a first preset value, and at the moment, the gas water heater is in a normal combustion state, and the gas water heater is controlled to operate; further, when the absolute value of the difference value between the current hot water yield Cb and the reference hot water yield C01 is greater than the first preset value, the gas water heater is in an abnormal combustion state, and at this time, the alarm unit of the gas water heater is controlled to give an alarm to warn a user to turn off the gas water heater, or the gas water heater is controlled to stop running, so that danger caused by using the gas water heater in the abnormal combustion state is avoided.
In any of the above technical solutions, preferably, when the absolute value of the difference between the current hot water yield Cb and the reference hot water yield C01 is smaller than the first preset value, the step of controlling the gas water heater to operate further includes: judging whether the absolute value of the difference value between the current hot water yield Cb and the reference hot water yield C01 is greater than a second preset value or not; when the absolute value of the difference value between the current hot water yield Cb and the reference hot water yield C01 is greater than a second preset value, controlling the rotating speed of the fan to adjust; and when the absolute value of the difference value between the current hot water yield Cb and the reference hot water yield C01 is smaller than a second preset value, controlling the gas water heater to continue to operate.
In the technical scheme, the difference value between the current hot water yield Cb and the reference hot water yield C01 is the combustion deviation caused by different types of fuel gas, insufficient combustion and the like, in the working process of the gas water heater, a proper combustion deviation is allowed to occur, in order to ensure that the gas water heater is in the optimal combustion state, the current hot water yield Cb and the reference hot water yield C01 are allowed to have a smaller difference value, the allowed smaller difference value is a second preset value, and technicians in the field can reasonably set the second preset value according to actual test verification; therefore, in order to ensure that the gas water heater is in the optimal combustion state, the absolute value of the difference value between the current hot water yield Cb and the reference hot water yield C01 is required to be ensured to be smaller than the second preset value, at the moment, the gas water heater is in the optimal combustion state, the rotating speed of the fan is not required to be adjusted, and the gas water heater is controlled to continuously operate; further, when the absolute value of the difference between the current hot water yield Cb and the reference hot water yield C01 is greater than the second preset value, the gas water heater is in a non-optimal combustion state, and at this time, the rotation speed of the fan is controlled to adjust, so that it can be ensured that the gas introduced by the gas water heater during the combustion operation can be properly mixed with a proper amount of air, and a proper combustion condition is achieved, so that a good combustion condition is ensured, the gas combustion inside the gas water heater is more sufficient, the gas water heater is adjusted to the optimal combustion state, and the use safety of the gas water heater is improved.
In any of the above technical solutions, preferably, when the absolute value of the difference between the current hot water yield Cb and the reference hot water yield C01 is greater than the second preset value, the specific step of controlling the rotation speed of the fan to adjust includes: judging whether the difference value between the current hot water yield Cb and the reference hot water yield C01 is greater than 0; when the difference value between the current hot water yield Cb and the reference hot water yield C01 is larger than 0, controlling the rotating speed of the fan to increase by a third preset value; when the difference between the current hot water yield Cb and the reference hot water yield C01 is less than 0, the rotation speed of the fan is controlled to be decreased by a fourth preset value.
In the technical scheme, when the absolute value of the difference value between the current hot water yield Cb and the reference hot water yield C01 is greater than the second preset value, the gas water heater is in a non-optimal combustion state, at the moment, the rotating speed of the fan is controlled to adjust, the gas introduced by the gas water heater in the combustion operation process can be properly mixed with a proper amount of air, a proper combustion condition is achieved, a good combustion condition is ensured, the gas combustion in the gas water heater is more sufficient, the gas water heater is adjusted to the optimal combustion state, the use safety of the gas water heater is improved, specifically, if the current hot water yield Cb is greater than the reference hot water yield C01, the rotating speed of the fan can be controlled to increase the third preset value, so that the air introduced by the rotation of the fan is increased, and the ratio of the air and the gas reaches the optimal combustion state of the operation of the gas water heater, therefore, the gas combustion in the gas water heater is more sufficient, the gas water heater is adjusted to the optimal combustion state, and a third preset value can be reasonably set by a person skilled in the art according to actual test verification; further, if the current hot water yield Cb is smaller than the reference hot water yield C01, the rotation speed of the fan can be controlled to be reduced by a fourth preset value, so that the amount of air introduced by the rotation of the fan is reduced, the ratio of the air to the gas reaches the optimal combustion state of the operation of the gas water heater, the gas combustion inside the gas water heater is more sufficient, the gas water heater is adjusted to the optimal combustion state, and a person skilled in the art can reasonably set the fourth preset value according to actual test verification.
According to a second aspect of the present invention, there is provided a gas water heater comprising: a memory configured to store executable instructions; the processor is configured to execute the stored instructions to implement the steps of any one of the above technical solutions, so as to have all the technical effects of the control method of the gas water heater, which are not described herein again.
According to a third aspect of the present invention, there is provided a computer readable storage medium, on which a computer program is stored, wherein the computer program, when being executed by a processor, implements the steps of any one of the above-mentioned technical solutions, thereby achieving all the technical effects of the control method for a gas water heater, and the details of which are not repeated herein.
Additional aspects and advantages in accordance with the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic flow chart illustrating a control method of a gas water heater according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart diagram illustrating a method of controlling a gas water heater according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart diagram illustrating a method of controlling a gas water heater according to an embodiment of the present invention;
FIG. 4 is a schematic flow chart diagram illustrating a method of controlling a gas water heater according to an embodiment of the present invention;
FIG. 5 is a schematic flow chart diagram illustrating a method of controlling a gas water heater according to an embodiment of the present invention;
FIG. 6 is a schematic flow chart diagram illustrating a method of controlling a gas water heater according to an embodiment of the present invention;
FIG. 7 is a schematic flow chart diagram illustrating a method of controlling a gas water heater according to an embodiment of the present invention;
fig. 8 shows a schematic structural diagram of a gas water heater provided by an embodiment of the invention.
Detailed Description
So that the manner in which the above recited aspects, features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
A control method of a gas water heater, and a computer-readable storage medium according to some embodiments of the present invention are described below with reference to fig. 1 to 8.
Fig. 1 shows a flow chart of a control method of a gas water heater provided according to an embodiment of the present invention.
As shown in fig. 1, a control method of a gas water heater according to an embodiment of the present invention includes:
s102, obtaining deviation dCn between the detected hot water yield C0n of the gas water heater and a reference hot water yield C01, and storing the deviation dCn;
s104, calculating the current hot water yield Cb of the gas water heater according to the deviation dCn;
and S106, comparing the current hot water yield Cb with the reference hot water yield C01, and controlling the rotating speed of a fan of the gas water heater to adjust according to the comparison result.
The control method of the gas water heater comprises the steps of firstly, obtaining deviation dCn between detected hot water yield C0n of the gas water heater and reference hot water yield C01, storing deviation dCn, further, calculating current hot water yield Cb of the gas water heater according to the deviation dCn, and enabling the value of the current hot water yield Cb to be more accurate by calculating deviation dCn and using deviation dCn for calculating current hot water yield Cb of the gas water heater; further, comparing the current hot water yield Cb with a reference hot water yield C01 of the gas water heater, and controlling the rotating speed of a fan of the gas water heater to adjust according to the comparison result, specifically, if the current hot water yield Cb is in normal combustion data after being compared with the reference hot water yield C01, the rotating speed of the fan does not need to be adjusted, and the gas water heater is controlled to continue to operate according to the current state; if the current hot water yield Cb is in the abnormal combustion data after being compared with the reference hot water yield C01, the gas water heater is controlled to automatically adjust the rotating speed of the fan or stop combustion, so that when the gas water heater uses different types of gas, self-judgment, self-adjustment and self-adaptation can be carried out according to the difference of various types of gas, and the different types of gas can be distinguished more efficiently and accurately; meanwhile, the introduced gas can be properly mixed with proper amount of air in the combustion operation process of the gas water heater, proper combustion conditions are achieved, good combustion conditions are ensured, the gas in the gas water heater is combusted more sufficiently, the problems that vibration combustion is caused due to insufficient gas combustion, a large amount of polluted gas is discharged after combustion and the like are avoided, and the use safety of the gas water heater is further improved.
Fig. 2 shows a flow chart of a control method of a gas water heater provided according to an embodiment of the invention.
As shown in fig. 2, a control method of a gas water heater according to an embodiment of the present invention includes:
s202, calculating a reference hot water yield C01 of the reference gas water heater under a reference condition;
s204, under the reference condition, calculating a detected hot water yield C0n according to the detected water inlet temperature and the detected water temperature sent by the water temperature detection unit of the gas water heater and the detected water flow rate sent by the water supply unit of the gas water heater;
s206, calculating a deviation dCn, dCn-C01-C0 n between the detected hot water yield C0n and the reference hot water yield C01, and storing a deviation dCn;
s208, calculating the current hot water yield Cb of the gas water heater according to the deviation dCn;
and S210, comparing the current hot water yield Cb with the reference hot water yield C01, and controlling the rotating speed of a fan of the gas water heater to adjust according to the comparison result.
In this embodiment, a deviation dCn of the detected hot water yield C0n of the gas water heater from a reference hot water yield C01 is obtained, and the step of storing the deviation dCn includes: firstly, calculating a reference hot water yield C01 of a reference gas water heater under a reference condition, namely setting one gas water heater as the reference gas water heater, controlling the reference gas water heater to operate under the reference condition, and calculating to obtain a reference hot water yield C01 of the reference gas water heater under the reference condition; then, under the reference condition, the detected hot water yield C0n of the gas water heater is calculated from the detected intake water temperature and the detected water temperature transmitted from the water temperature detecting unit of the gas water heater and the detected water flow rate transmitted from the water supply unit of the gas water heater, and further, the difference between the detected hot water yield C0n and the reference hot water yield C01 is calculated to obtain a deviation dCn, dCn-C01-C0 n, and the deviation dCn is stored. Since the detected inlet water temperature, the detected water temperature and the detected water flow rate of the nth gas water heater are different during the operation, the deviation dCn is the difference between the reference value (i.e. the reference hot water yield C01) and the calculated value (i.e. the detected hot water yield C0n) of the hot water yield of the nth gas water heater; by calculating the deviation dCn and using the deviation dCn to calculate the current hot water production rate Cb of the gas water heater, the value of the current hot water production rate Cb is made more accurate.
In one embodiment of the present invention, preferably, the reference conditions are: controlling the opening degree of a gas control unit of the gas water heater to be the same as the opening degree of a gas control unit of a reference gas water heater; and controlling the rotating speed of the fan of the gas water heater to be the same as that of the fan of the reference gas water heater.
In this embodiment, the reference conditions are set as follows: controlling the opening degree of a gas control unit of the gas water heater to be the same as the opening degree of a gas control unit of a reference gas water heater; the rotating speed of the fan of the gas water heater is controlled to be the same as that of the fan of the reference gas water heater, so that the reference gas water heater and the gas water heater have the same opening degree of the gas control unit and the same rotating speed of the fan under the reference condition, under the condition that the conditions are the same, the combustion conditions and the running conditions of the reference gas water heater and the gas water heater can be judged to be the same, because the detected inlet water temperature, the detected water temperature and the detected water flow rate of the nth gas water heater are different in the working process, so that the deviation dCn is the difference between the reference value of the hot water production rate of the nth gas water heater (i.e., the reference hot water production rate C01) and the calculated value (i.e., the detected hot water production rate C0n), and further, by storing the deviation dCn and calculating the current hot water production rate Cb of the gas water heater by calculating the corresponding deviation dCn, the value of the current hot water production rate Cb is made more accurate.
Fig. 3 shows a flow chart of a control method of a gas water heater provided according to an embodiment of the invention.
As shown in fig. 3, a control method of a gas water heater according to an embodiment of the present invention includes:
s302, calculating a reference hot water yield C01 of the reference gas water heater under a reference condition;
s304, under the reference condition, calculating a detected hot water yield C0n according to the detected water inlet temperature and the detected water temperature sent by the water temperature detection unit of the gas water heater and the detected water flow rate sent by the water supply unit of the gas water heater;
s306, calculating the deviation dCn, dCn-C01-C0 n of the detected hot water yield C0n and the reference hot water yield C01, and storing the deviation dCn;
s308, calculating the current hot water yield Cb of the gas water heater according to the deviation dCn;
s310, receiving the target outlet water temperature, and calculating a reference hot water yield C01 according to the current inlet water temperature sent by the water temperature detection unit and the current water flow rate sent by the water supply unit;
s312, calculating the current actual hot water yield Cn according to the current water inlet temperature, the current water outlet temperature sent by the water temperature detection unit and the current water flow rate;
s314, calculating a current hot water production rate Cb, Cb ═ Cn + dCn from the current actual hot water production rate Cn and the deviation dCn;
and S316, comparing the current hot water yield Cb with the reference hot water yield C01, and controlling the rotating speed of the fan of the gas water heater to adjust according to the comparison result.
In this embodiment, the step of comparing the current hot water yield Cb with the reference hot water yield C01 includes: receiving a preset target outlet water temperature, receiving a current inlet water temperature sent by a water temperature detection unit of the gas water heater and a current water flow rate sent by a water supply unit of the gas water heater, and calculating a reference hot water yield C01 according to the target outlet water temperature, the current inlet water temperature and the current water flow rate, further receiving a current outlet water temperature sent by the water temperature detection unit of the gas water heater, and calculating a current actual hot water yield Cn according to the current inlet water temperature, the current outlet water temperature and the current water flow rate, and further calculating a current hot water yield Cb which is Cn + dCn according to the current actual hot water yield Cn and a corresponding deviation dCn; since the current inlet water temperature, the current outlet water temperature and the current water flow rate detected by the nth gas water heater during the operation process have differences, and the deviation dCn is the difference between the calculated value of the hot water yield of the gas water heater (the current actual hot water yield Cn) and the true value (the current hot water yield Cb), the current hot water yield Cb is Cn + dCn; further, the current hot water yield Cb is compared with a reference hot water yield C01 of the gas water heater, and the rotation speed of the fan of the gas water heater is adjusted according to the comparison result. Specifically, if the current hot water yield Cb is within the normal combustion data after being compared with the reference hot water yield C01, the rotating speed of the fan does not need to be adjusted, and the gas water heater is controlled to continue to operate according to the current state; if the current hot water yield Cb is in the abnormal combustion data after being compared with the reference hot water yield C01, the gas water heater is controlled to automatically adjust the rotating speed of the fan or stop combustion, so that when the gas water heater uses different types of gas, self-judgment, self-adjustment and self-adaptation can be carried out according to the difference of various types of gas, and the different types of gas can be distinguished more efficiently and accurately; meanwhile, the introduced gas can be properly mixed with proper amount of air in the combustion operation process of the gas water heater, proper combustion conditions are achieved, good combustion conditions are ensured, the gas in the gas water heater is combusted more sufficiently, the problems that vibration combustion is caused due to insufficient gas combustion, a large amount of polluted gas is discharged after combustion and the like are avoided, and the use safety of the gas water heater is further improved.
In one embodiment of the present invention, preferably, the baseline hot water yield C01 is: the product of the difference between the target outlet water temperature and the current inlet water temperature and the current water flow rate; the current actual hot water yield Cn is: the product of the difference between the current leaving water temperature and the current entering water temperature and the current water flow rate.
In this example, the baseline hot water yield C01 was: the product of the difference between the target outlet water temperature and the current inlet water temperature and the current water flow rate; the current actual hot water yield Cn is: the product of the difference between the current leaving water temperature and the current entering water temperature and the current water flow rate.
Fig. 4 shows a flow chart of a control method of a gas water heater provided according to an embodiment of the invention.
As shown in fig. 4, a control method of a gas water heater according to an embodiment of the present invention includes:
s402, calculating a reference hot water yield C01 of the reference gas water heater under a reference condition;
s404, under the reference condition, calculating a detected hot water yield C0n according to the detected water inlet temperature and the detected water temperature sent by the water temperature detection unit of the gas water heater and the detected water flow rate sent by the water supply unit of the gas water heater;
s406, calculating a deviation dCn, dCn-C01-C0 n of the detected hot water yield C0n from the reference hot water yield C01, and storing a deviation dCn;
s408, calculating the current hot water yield Cb of the gas water heater according to the deviation dCn;
s410, receiving the target outlet water temperature, and calculating a reference hot water yield C01 according to the current inlet water temperature sent by the water temperature detection unit and the current water flow rate sent by the water supply unit;
s412, reading a preset relation between the pre-stored hot water yield and the rotating speed of the fan;
s414, adjusting the rotating speed of the fan according to the reference hot water yield C01 and a preset relation;
s416, adjusting the rotating speed of the fan and then receiving the current water outlet temperature to obtain the current actual hot water yield Cn;
s418, calculating the current actual hot water yield Cn according to the current water inlet temperature, the current water outlet temperature sent by the water temperature detection unit and the current water flow rate;
s420, calculating a current hot water production rate Cb, Cb ═ Cn + dCn from the current actual hot water production rate Cn and the deviation dCn;
and S422, comparing the current hot water yield Cb with the reference hot water yield C01, and controlling the rotating speed of the fan of the gas water heater to adjust according to the comparison result.
In the embodiment, before the current actual hot water yield Cn is calculated, the relationship between the hot water yield and the rotating speed of the fan is preset according to the test and verification in advance, the preset relationship is input into the system control unit, and further, the rotating speed of the fan is controlled through the target water outlet temperature and the preset relationship input into the system control unit, so that the ratio of air and gas reaches the optimal combustion state of the operation of the gas water heater, the gas combustion in the gas water heater is more sufficient, and the gas water heater is adjusted to the optimal combustion state; further, the rotating speed of the fan is adjusted according to a preset relation, then the current outlet water temperature is received, the current actual hot water yield Cn is obtained through calculation, and the current hot water yield Cb is obtained through calculation according to the current actual hot water yield Cn and the deviation dCn, wherein Cb is Cn + dCn; the difference value of the current hot water yield Cb and the reference hot water yield C01 is the combustion deviation caused by different types of fuel gas, insufficient combustion and other reasons, at the moment, the rotating speed of the fan can be automatically adjusted by the gas water heater according to the combustion deviation, so that the gas water heater enters the optimal combustion state, and the use safety of the gas water heater is ensured.
Fig. 5 shows a flow chart of a control method of a gas water heater provided according to an embodiment of the invention.
As shown in fig. 5, a control method of a gas water heater according to an embodiment of the present invention includes:
s502, calculating a reference hot water yield C01 of the reference gas water heater under a reference condition;
s504, under the reference condition, calculating a detected hot water yield C0n according to the detected water inlet temperature and the detected water temperature sent by the water temperature detection unit of the gas water heater and the detected water flow rate sent by the water supply unit of the gas water heater;
s506, calculating a deviation dCn, dCn-C01-C0 n between the detected hot water yield C0n and the reference hot water yield C01, and storing a deviation dCn;
s508, calculating the current hot water yield Cb of the gas water heater according to the deviation dCn;
s510, receiving the target outlet water temperature, and calculating a reference hot water yield C01 according to the current inlet water temperature sent by the water temperature detection unit and the current water flow rate sent by the water supply unit;
s512, reading a preset relation between the pre-stored hot water yield and the rotating speed of the fan;
s514, adjusting the rotating speed of the fan according to the reference hot water yield C01 and a preset relation;
s516, adjusting the rotating speed of the fan and then receiving the current water outlet temperature to obtain the current actual hot water yield Cn;
s518, calculating the current actual hot water yield Cn according to the current water inlet temperature, the current water outlet temperature sent by the water temperature detection unit and the current water flow rate;
s520, calculating a current hot water yield Cb, Cb ═ Cn + dCn from the current actual hot water yield Cn and the deviation dCn;
s522, determining whether an absolute value of a difference between the current hot water yield Cb and the reference hot water yield C01 is greater than a first preset value; executing S524 when it is greater than the first preset value, and executing S526 when it is less than the first preset value;
s524, controlling an alarm unit of the gas water heater to give an alarm and/or controlling the gas water heater to stop running;
and S526, controlling the gas water heater to operate.
In this embodiment, the difference between the current hot water yield Cb and the reference hot water yield C01 is a combustion deviation caused by different types of fuel gas and insufficient combustion, and during the operation of the gas water heater, a proper combustion deviation is allowed to occur, that is, the current hot water yield Cb and the reference hot water yield C01 may have a certain difference, and the allowed difference between the current hot water yield Cb and the reference hot water yield C01 is a first preset value, and a person skilled in the art may reasonably set the first preset value according to actual test verification; therefore, in order to ensure the safe use of the gas water heater, the absolute value of the difference value between the current hot water yield Cb and the reference hot water yield C01 needs to be ensured to be smaller than a first preset value, and at the moment, the gas water heater is in a normal combustion state, and the gas water heater is controlled to operate; further, when the absolute value of the difference value between the current hot water yield Cb and the reference hot water yield C01 is greater than the first preset value, the gas water heater is in an abnormal combustion state, and at this time, the alarm unit of the gas water heater is controlled to give an alarm to warn a user to turn off the gas water heater, or the gas water heater is controlled to stop running, so that danger caused by using the gas water heater in the abnormal combustion state is avoided.
Fig. 6 shows a flow chart of a control method of a gas water heater provided according to an embodiment of the invention.
As shown in fig. 6, a control method of a gas water heater according to an embodiment of the present invention includes:
s602, calculating a reference hot water yield C01 of the reference gas water heater under a reference condition;
s604, under the reference condition, calculating a detected hot water yield C0n according to the detected water inlet temperature and the detected water temperature sent by the water temperature detection unit of the gas water heater and the detected water flow rate sent by the water supply unit of the gas water heater;
s606, calculating a deviation dCn, dCn-C01-C0 n between the detected hot water yield C0n and the reference hot water yield C01, and storing a deviation dCn;
s608, calculating the current hot water yield Cb of the gas water heater according to the deviation dCn;
s610, receiving the target outlet water temperature, and calculating a reference hot water yield C01 according to the current inlet water temperature sent by the water temperature detection unit and the current water flow rate sent by the water supply unit;
s612, reading a preset relation between the pre-stored hot water yield and the rotating speed of the fan;
s614, adjusting the rotating speed of the fan according to the reference hot water yield C01 and a preset relation;
s616, adjusting the rotating speed of the fan and then receiving the current water outlet temperature to obtain the current actual hot water yield Cn;
s618, calculating the current actual hot water yield Cn according to the current water inlet temperature, the current water outlet temperature sent by the water temperature detection unit and the current water flow rate;
s620, calculating a current hot water production rate Cb, Cb ═ Cn + dCn from the current actual hot water production rate Cn and the deviation dCn;
s622, determining whether an absolute value of a difference between the current hot water yield Cb and the reference hot water yield C01 is greater than a first preset value; performing S624 when it is greater than the first preset value, and performing S626 when it is less than the first preset value;
s624, controlling an alarm unit of the gas water heater to give an alarm and/or controlling the gas water heater to stop running;
s626, controlling the gas water heater to operate;
s628, determining whether an absolute value of a difference between the current hot water yield Cb and the reference hot water yield C01 is greater than a second preset value; when it is greater than the second preset value, performing S630, and when it is less than the second preset value, performing S632;
s630, controlling the rotating speed of the fan to adjust;
and S632, controlling the gas water heater to continuously operate.
In this embodiment, the difference between the current hot water yield Cb and the reference hot water yield C01 is a combustion deviation caused by different types of fuel gas and insufficient combustion, and during the operation of the gas water heater, a proper combustion deviation is allowed to occur, so as to ensure that the gas water heater is in an optimal combustion state, the current hot water yield Cb and the reference hot water yield C01 are allowed to have a smaller difference, and the smaller allowed difference is a second preset value, which can be reasonably set by a person skilled in the art according to actual test verification; therefore, in order to ensure that the gas water heater is in the optimal combustion state, the absolute value of the difference value between the current hot water yield Cb and the reference hot water yield C01 is required to be ensured to be smaller than the second preset value, at the moment, the gas water heater is in the optimal combustion state, the rotating speed of the fan is not required to be adjusted, and the gas water heater is controlled to continuously operate; further, when the absolute value of the difference between the current hot water yield Cb and the reference hot water yield C01 is greater than the second preset value, the gas water heater is in a non-optimal combustion state, and at this time, the rotation speed of the fan is controlled to adjust, so that it can be ensured that the gas introduced by the gas water heater during the combustion operation can be properly mixed with a proper amount of air, and a proper combustion condition is achieved, so that a good combustion condition is ensured, the gas combustion inside the gas water heater is more sufficient, the gas water heater is adjusted to the optimal combustion state, and the use safety of the gas water heater is improved.
Fig. 7 shows a flow chart of a control method of a gas water heater provided according to an embodiment of the invention.
As shown in fig. 7, a control method of a gas water heater according to an embodiment of the present invention includes:
s702, calculating a reference hot water yield C01 of the reference gas water heater under a reference condition;
s704, under the reference condition, calculating a detected hot water yield C0n according to the detected water inlet temperature and the detected water temperature sent by the water temperature detection unit of the gas water heater and the detected water flow rate sent by the water supply unit of the gas water heater;
s706, calculating a deviation dCn, dCn-C01-C0 n between the detected hot water yield C0n and the reference hot water yield C01, and storing a deviation dCn;
s708, calculating the current hot water yield Cb of the gas water heater according to the deviation dCn;
s710, receiving the target outlet water temperature, and calculating a reference hot water yield C01 according to the current inlet water temperature sent by the water temperature detection unit and the current water flow rate sent by the water supply unit;
s712, reading a preset relation between the pre-stored hot water yield and the rotating speed of the fan;
s714, adjusting the rotating speed of the fan according to the reference hot water yield C01 and a preset relation;
s716, adjusting the rotating speed of the fan and then receiving the current water outlet temperature to obtain the current actual hot water yield Cn;
s718, calculating the current actual hot water yield Cn according to the current water inlet temperature, the current water outlet temperature sent by the water temperature detection unit and the current water flow rate;
s720, calculating a current hot water yield Cb, Cb ═ Cn + dCn from the current actual hot water yield Cn and the deviation dCn;
s722, determining whether an absolute value of a difference between the current hot water yield Cb and the reference hot water yield C01 is greater than a first preset value; executing S724 when the first preset value is larger than the first preset value, and executing S726 when the first preset value is smaller than the first preset value;
s724, controlling an alarm unit of the gas water heater to give an alarm and/or controlling the gas water heater to stop running;
s726, controlling the gas water heater to operate;
s728, judging whether the absolute value of the difference value between the current hot water yield Cb and the reference hot water yield C01 is larger than a second preset value; when the value is greater than the second preset value, executing S730, and when the value is less than the second preset value, executing S736;
s730, judging whether the difference value between the current hot water yield Cb and the reference hot water yield C01 is greater than 0; when it is greater than 0, perform S732, when it is less than 0, perform S734;
s732, controlling the rotating speed of the fan to increase a third preset value;
s734, controlling the rotating speed of the fan to reduce a fourth preset value;
and S736, controlling the gas water heater to continuously operate.
In this embodiment, when the absolute value of the difference between the current hot water yield Cb and the reference hot water yield C01 is greater than the second preset value, the gas water heater is in a non-optimal combustion state, and at this time, the rotation speed of the fan is controlled to adjust, so that the gas introduced by the gas water heater during the combustion operation can be properly mixed with a proper amount of air, and a proper combustion condition is achieved, and a good combustion condition is ensured, so that the gas inside the gas water heater is combusted more sufficiently, the gas water heater is adjusted to an optimal combustion state, and the safety of the gas water heater is improved, specifically, if the current hot water yield Cb is greater than the reference hot water yield C01, the rotation speed of the fan can be controlled to increase by a third preset value, so that the amount of air introduced by the rotation of the fan is increased, and the ratio of air to gas reaches the optimal combustion state of the operation of the gas water heater, therefore, the gas combustion in the gas water heater is more sufficient, the gas water heater is adjusted to the optimal combustion state, and a third preset value can be reasonably set by a person skilled in the art according to actual test verification; further, if the current hot water yield Cb is smaller than the reference hot water yield C01, the rotation speed of the fan can be controlled to be reduced by a fourth preset value, so that the amount of air introduced by the rotation of the fan is reduced, the ratio of the air to the gas reaches the optimal combustion state of the operation of the gas water heater, the gas combustion inside the gas water heater is more sufficient, the gas water heater is adjusted to the optimal combustion state, and a person skilled in the art can reasonably set the fourth preset value according to actual test verification.
As shown in fig. 8, according to a second aspect of the present invention, there is provided a gas water heater 1 comprising: a memory 12 configured to store executable instructions; the processor 14 is configured to execute the stored instructions to implement the steps of the method provided in any of the above embodiments, so as to achieve all the technical effects of the control method of the gas water heater, which will not be described herein again.
According to a third aspect of the present invention, there is provided a computer readable storage medium, on which a computer program is stored, the computer program, when being executed by a processor, implements the steps of the method provided in any one of the above embodiments, thereby achieving all the technical effects of the method for controlling a gas water heater, which will not be described herein again.
In the description of the present specification, the term "plurality" means two or more, and unless otherwise specifically limited, the terms "upper", "lower", and the like, as used herein, refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, is not to be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. A control method of a gas water heater is characterized by comprising the following steps:
under the reference condition, calculating a reference hot water yield C01 of the reference gas water heater;
acquiring a deviation dCn of a detected hot water yield C0n of the gas water heater under the reference condition from the reference hot water yield C01, and storing the deviation dCn;
calculating the current actual hot water yield Cn according to the current inlet water temperature and the current outlet water temperature sent by the water temperature detection unit of the gas water heater and the current water flow rate sent by the water supply unit of the gas water heater;
calculating a current hot water production rate Cb, Cb = Cn + dCn of the gas water heater from the current actual hot water production rate Cn and the deviation dCn;
comparing the current hot water yield Cb with the reference hot water yield C01, and controlling the rotating speed of a fan of the gas water heater to adjust according to the comparison result;
the reference gas water heater and the gas water heater have the same opening degree of the gas control unit and the same rotating speed of the fan under the reference condition.
2. The control method of a gas water heater according to claim 1, wherein a deviation dCn of the detected hot water yield C0n of the gas water heater from a reference hot water yield C01 is obtained, and the step of storing the deviation dCn includes:
under the reference condition, calculating the detected hot water yield C0n according to the detected inlet water temperature sent by the water temperature detection unit of the gas water heater, the detected water temperature and the detected water flow rate sent by the water supply unit of the gas water heater;
the deviation dCn, dCn = C01-C0n of the detected hot water yield C0n from the reference hot water yield C01 is calculated, and the deviation dCn is stored.
3. The control method of a gas water heater according to claim 2,
the reference conditions are as follows: controlling the opening degree of the gas control unit of the gas water heater to be the same as the opening degree of the gas control unit of the reference gas water heater;
and controlling the rotating speed of the fan of the gas water heater to be the same as that of the fan of the reference gas water heater.
4. The control method of a gas water heater according to any one of claims 1 to 3, wherein the step of comparing the current hot water production rate Cb with a reference hot water production rate C01 comprises:
receiving a target outlet water temperature, and calculating the reference hot water yield C01 according to the current inlet water temperature sent by the water temperature detection unit and the current water flow rate sent by the water supply unit;
and comparing the current hot water yield Cb with the reference hot water yield C01, and adjusting the rotating speed of a fan of the gas water heater according to the comparison result.
5. The control method of a gas water heater according to claim 4,
the baseline hot water yield C01 was: the product of the difference between the target outlet water temperature and the current inlet water temperature and the current water flow rate;
the current actual hot water yield Cn is: the product of the difference between the current leaving water temperature and the current entering water temperature and the current water flow rate.
6. The control method of the gas water heater according to claim 4, wherein before calculating the current actual hot water yield Cn according to the current inlet water temperature, the current outlet water temperature sent by the water temperature detection unit and the current water flow rate, the method further comprises:
reading a preset relation between a prestored hot water yield and the rotating speed of the fan;
adjusting the rotating speed of the fan according to the reference hot water yield C01 and the preset relation;
and after the rotating speed of the fan is adjusted, the current outlet water temperature is received, so that the current actual hot water yield Cn is obtained.
7. The method as claimed in claim 4, wherein the step of comparing the current hot water yield Cb with the reference hot water yield C01 and controlling the rotation speed of the fan of the gas water heater according to the comparison result comprises:
judging whether the absolute value of the difference value between the current hot water yield Cb and the reference hot water yield C01 is greater than a first preset value or not;
when the absolute value of the difference value between the current hot water yield Cb and the reference hot water yield C01 is larger than the first preset value, controlling an alarm unit of the gas water heater to give an alarm and/or controlling the gas water heater to stop running;
and when the absolute value of the difference value between the current hot water yield Cb and the reference hot water yield C01 is smaller than the first preset value, controlling the gas water heater to operate.
8. The method as claimed in claim 7, wherein when the absolute value of the difference between the current hot water production rate Cb and the reference hot water production rate C01 is smaller than the first predetermined value, the method further comprises the following steps:
judging whether the absolute value of the difference value between the current hot water yield Cb and the reference hot water yield C01 is greater than a second preset value;
when the absolute value of the difference value between the current hot water yield Cb and the reference hot water yield C01 is greater than the second preset value, controlling the rotating speed of the fan to adjust;
and when the absolute value of the difference value between the current hot water yield Cb and the reference hot water yield C01 is smaller than the second preset value, controlling the gas water heater to continue to operate.
9. The control method of the gas water heater as claimed in claim 8, wherein when the absolute value of the difference between the current hot water yield Cb and the reference hot water yield C01 is greater than the second preset value, the specific steps of controlling the rotation speed of the fan to adjust are as follows:
judging whether the difference value between the current hot water yield Cb and the reference hot water yield C01 is greater than 0;
when the difference value between the current hot water yield Cb and the reference hot water yield C01 is larger than 0, controlling the rotating speed of the fan to increase by a third preset value;
and when the difference value between the current hot water yield Cb and the reference hot water yield C01 is less than 0, controlling the rotating speed of the fan to be reduced by a fourth preset value.
10. A gas water heater, comprising:
a memory configured to store executable instructions;
a processor configured to execute stored instructions to implement the steps of the method of any one of claims 1 to 9.
11. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 9.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104596116A (en) * | 2015-01-16 | 2015-05-06 | 芜湖美的厨卫电器制造有限公司 | Control method and control system of water heater and water heater |
| CN106225249A (en) * | 2016-08-31 | 2016-12-14 | 芜湖美的厨卫电器制造有限公司 | Gas heater and safety control system thereof and method |
| CN207831701U (en) * | 2018-01-09 | 2018-09-07 | 芜湖美的厨卫电器制造有限公司 | Gas heater |
| CN108518871A (en) * | 2018-04-11 | 2018-09-11 | 芜湖美的厨卫电器制造有限公司 | The control method and control system of gas heater |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108317738B (en) * | 2018-03-01 | 2023-07-18 | 芜湖美的厨卫电器制造有限公司 | Water heater safety control method and device and water heater |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596116A (en) * | 2015-01-16 | 2015-05-06 | 芜湖美的厨卫电器制造有限公司 | Control method and control system of water heater and water heater |
| CN106225249A (en) * | 2016-08-31 | 2016-12-14 | 芜湖美的厨卫电器制造有限公司 | Gas heater and safety control system thereof and method |
| CN207831701U (en) * | 2018-01-09 | 2018-09-07 | 芜湖美的厨卫电器制造有限公司 | Gas heater |
| CN108518871A (en) * | 2018-04-11 | 2018-09-11 | 芜湖美的厨卫电器制造有限公司 | The control method and control system of gas heater |
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