CN107120843B - Control method and control device of water heater, water heater and computer equipment - Google Patents
Control method and control device of water heater, water heater and computer equipment Download PDFInfo
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- CN107120843B CN107120843B CN201710415282.5A CN201710415282A CN107120843B CN 107120843 B CN107120843 B CN 107120843B CN 201710415282 A CN201710415282 A CN 201710415282A CN 107120843 B CN107120843 B CN 107120843B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 569
- 238000000034 method Methods 0.000 title claims abstract description 58
- 238000004590 computer program Methods 0.000 claims description 6
- 230000003247 decreasing effect Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 4
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- 238000010586 diagram Methods 0.000 description 13
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- 238000010438 heat treatment Methods 0.000 description 8
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- 230000033228 biological regulation Effects 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 5
- 230000002035 prolonged effect Effects 0.000 description 4
- 230000007363 regulatory process Effects 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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- 238000013459 approach Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
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- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention provides a control method and a control device of a water heater, the water heater and computer equipment. The control method of the water heater comprises the following steps: detecting and judging an environment temperature interval in which the environment temperature is positioned; determining an initial opening degree of the warm water valve and a first opening degree threshold value according to the environment temperature interval; detecting the outlet water temperature T of the temperature water valve after the compressor runs for a preset time1(ii) a The temperature T of the outlet water1And a predetermined temperature TSComparing to judge the water outlet temperature T1The temperature is within a preset temperature interval; and adjusting the opening of the warm water valve according to a preset temperature interval. According to the technical scheme, the regulating speed of the warm water valve can be increased, the hot water with the specified temperature can be provided more quickly, the conditions that the temperature of the outlet water is too high or too low can be better dealt with, and the reliable operation of the whole machine is ensured, so that the use safety is improved, and the user experience is enhanced.
Description
Technical Field
The invention relates to the technical field of water heaters, in particular to a control method of a water heater, a control device of the water heater, computer equipment and a computer readable storage medium.
Background
In traditional commercial directly-heated heat pump water heater, to the control of warm water valve, the phenomenon that regulating speed is slow ubiquitous wants to reach the required suitable temperature of user, needs the regulation of very long time, has the risk that the temperature is too high, hang down excessively moreover, influences user experience.
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 object of the invention is to propose a control method of a water heater.
The second purpose of the invention is to provide a control device of the water heater.
A third object of the invention is to propose a water heater.
A fourth object of the invention is to propose a computer device.
A fifth object of the invention is to propose a computer-readable storage medium.
In view of the above, according to a first object of the present invention, there is provided a control method for a water heater, the water heater including a heat pump main unit, a compressor, and a warm water valve, the control method for the water heater including: detecting and judging an environment temperature interval in which the environment temperature is positioned; determining an initial opening degree of the warm water valve and a first opening degree threshold value according to the environment temperature interval; detecting the outlet water temperature T of the temperature water valve after the compressor runs for a preset time1(ii) a The temperature T of the outlet water1And a predetermined temperature TSComparing to judge the water outlet temperature T1The temperature is within a preset temperature interval; and adjusting the opening of the warm water valve according to a preset temperature interval.
According to the control method of the water heater, the initial opening interval of the warm water valve is divided for different environmental temperatures, and the outlet water temperature T of the warm water valve is measured through real temperature1Is brought to a predetermined temperature TSComparing to determine the water temperature T1The temperature range is preset, so that the regulating range of the warm water valve is determined, and the opening degree of the warm water valve is further regulated. Specifically, when the unit performs directly-heated water heating, the warm water valve is opened to an initial opening degree corresponding to the ambient temperature according to the ambient temperature, the minimum opening degree value is determined, the warm water valve is avoided to ensure the operation reliability of the whole unit, and the outlet water temperature T of the warm water valve is judged after the compressor operates for a period of time1In which preset temperature interval, so as to determine the regulating interval of the warm water valve, the maximum opening degree is set in the regulating process, and generally speaking, the maximum opening degree is the maximum opening degree of the warm water valve. Go through the bookAccording to the technical scheme, the regulating speed of the warm water valve can be increased, the hot water with the specified temperature can be provided more quickly in normal use, the situations of overhigh and overlow outlet water temperature can be better dealt with, and the reliable operation of the whole machine is ensured, so that the use safety is improved, and the user experience is enhanced.
In addition, the control method of the water heater according to the present invention may further have the following additional technical features:
in the above technical solution, preferably, the outlet water temperature T is set1And a predetermined temperature TSComparing to determine the water temperature T1The step of presetting the temperature interval specifically comprises the following steps: when T is1≥TSWhen + X, the water temperature is judged to be in a first preset temperature interval; when T isS－X≤T1＜TSWhen + X, the water temperature is judged to be in a second preset temperature interval; when T is1＜TSWhen the temperature is-X, the temperature of the water is judged to be in a third preset temperature interval; wherein X is a first set temperature value.
In the technical scheme, the outlet water temperature T of the real temperature measuring water valve1And a predetermined temperature TSMaking a comparison to determine the water temperature TSThe temperature interval is located, and then the warm water valve adjustment interval is confirmed, and it can be understood that the more meticulous the temperature interval is divided, the more accurate the regulation to warm water valve opening. Preferably, in the present invention, the temperature is divided into three preset temperature intervals when T is1≥TSWhen + X, the water temperature is judged to be in a first preset temperature interval; when T isS－X≤T1＜TSWhen + X, the water temperature is judged to be in a second preset temperature interval; when T is1＜TSWhen the temperature is-X, the temperature of the water is judged to be in a third preset temperature interval; wherein, X is a fixed preset value and can be set according to actual conditions.
In any one of the above technical solutions, preferably, the step of adjusting the opening degree of the warm water valve according to a preset temperature interval specifically includes: when the outlet water temperature is in a first preset temperature range, the opening degree of the warm water valve is adjusted to be the opening degree of a first preset multiple of the current opening degree; when the outlet water temperature is in a second preset temperature interval, adjusting the opening of the warm water valve according to a preset rule; when the outlet water temperature is in a third preset temperature range, the opening degree of the warm water valve is adjusted to be smaller than the opening degree of a second preset multiple of the current opening degree; when the opening degree of the second preset multiple of the current opening degree is smaller than or equal to the first opening degree threshold value, the opening degree of the warm water valve is adjusted to the first opening degree threshold value.
In the technical scheme, when the temperature of the outlet water is determined to be in a first preset temperature interval, the outlet water temperature exceeds the set temperature excessively, the water temperature adjusting amplitude is relatively larger, the opening degree of the warm water valve is immediately adjusted to be a first preset multiple of the current opening degree, the outlet water temperature is quickly dropped to the set temperature, and preferably the first preset multiple is 1.2 times; when the temperature of the outlet water is judged to be in a second preset temperature interval, the deviation between the outlet water temperature and the set temperature is small, and the outlet water temperature is adjusted according to a preset rule; when the temperature of the water is determined to be in a third preset temperature interval, the temperature of the water is over lower than the set temperature, the water temperature adjusting amplitude is relatively large, the opening degree of the warm water valve is adjusted to a second preset multiple of the current opening degree, preferably the second preset multiple is 0.9 time, if the adjusted temperature is still lower than the set temperature, the opening degree of the warm water valve is continuously reduced by 0.9 time, and it is particularly pointed out that if the minimum opening degree is reached in the adjusting process, namely the first opening degree threshold value is reached, the adjustment is not carried out, the warm water valve is prevented from being repeatedly opened and closed, the service life of the warm water valve is prolonged, and the reliability of the whole machine is improved.
In any one of the above technical solutions, preferably, the step of adjusting the opening degree of the warm water valve according to a preset rule specifically includes: and calculating the difference value between the water temperature and the preset temperature, and adjusting the opening degree of the warm water valve to be larger or smaller than a second opening degree threshold value according to the difference value and the increase or decrease of the second set temperature value of the outlet water temperature.
In the technical scheme, a preset rule is limited, the relation between the water temperature and the set temperature is determined by calculating the difference value between the actually measured outlet water temperature and the preset temperature, and the opening of the warm water valve is adjusted to be larger or smaller than a second opening threshold value according to the increase or decrease of the outlet water temperature to a second set temperature value. The opening of the temperature adjusting water valve is uniform, the water outlet temperature can be controlled, the phenomenon that the water outlet temperature is too high, too low, suddenly high and suddenly low is avoided, the user experience is improved, and meanwhile the reliability of the temperature adjusting water valve is improved.
In any of the above technical solutions, preferably, after the opening degree of the warm water valve is adjusted according to the preset temperature interval, the outlet water temperature T of the warm water valve is detected and determined again at intervals of a preset time length1And adjusting the opening degree of the warm water valve according to the preset temperature interval until the outlet water temperature reaches the preset temperature.
In the technical scheme, in the operation process, the outlet water temperature of the warm water valve is actually measured once every preset time length, so that the adjusting speed of the warm water valve is increased, the requirements of a user are responded in time, hot water at the temperature specified by the user is supplied more quickly, and the preset time length is preferably 60 seconds.
In any of the above technical solutions, preferably, the range of the first set temperature value is: 6 to 12 ℃; range of second set temperature value: 0 ℃ to 1 ℃; range of the second opening degree threshold: and (6) 30 to 34 steps.
In the technical scheme, the range of the first set temperature value is 6 ℃ to 12 ℃, the range of the second set temperature value is 0 ℃ to 1 ℃, and the range of the second opening threshold value is as follows: and (3) 30 to 34, but the method is not limited to the steps.
In any of the above technical solutions, preferably, the second opening degree threshold is 32 steps; the second set temperature value is 1 deg.c.
In the technical scheme, the second opening threshold is 32 steps, and the second set temperature value is 1 ℃, but not limited thereto. Specifically, when the actually measured water temperature is in a second preset temperature interval, the difference between the water temperature and the preset temperature is calculated, and the opening of the warm water valve is adjusted to be larger or smaller for 32 steps according to the rising or lowering of the water temperature by 1 ℃.
According to a second object of the present invention, there is provided a control device for a water heater, the water heater including a heat pump main unit, a compressor, and a warm water valve, the control device for the water heater including: the first detection unit is used for detecting and judging an environment temperature interval where the environment temperature is located; a determination unit for determining according to the environment temperature intervalThe initial opening degree of the warm water valve and a first opening degree threshold value; a second detection unit for detecting the water outlet temperature T of the temperature water valve after the compressor runs for a preset time1(ii) a A judging unit for judging the outlet water temperature T1And a predetermined temperature TSComparing to judge the water outlet temperature T1The temperature is within a preset temperature interval; and the control unit is used for adjusting the opening of the warm water valve according to the preset temperature interval.
According to the control device of the water heater, the initial opening interval of the warm water valve is divided for different environmental temperatures, and the outlet water temperature T of the warm water valve is measured through real temperature1Is brought to a predetermined temperature TSComparing to determine the water temperature T1The temperature range is preset, so that the regulating range of the warm water valve is determined, and the opening degree of the warm water valve is further regulated. Specifically, when the unit performs directly-heated water heating, the warm water valve is opened to an initial opening degree corresponding to the ambient temperature according to the ambient temperature, the minimum opening degree value is determined, the warm water valve is avoided to ensure the operation reliability of the whole unit, and the outlet water temperature T of the warm water valve is judged after the compressor operates for a period of time1In which preset temperature interval, so as to determine the regulating interval of the warm water valve, the maximum opening degree is set in the regulating process, and generally speaking, the maximum opening degree is the maximum opening degree of the warm water valve. According to the technical scheme, the regulating speed of the warm water valve can be increased, the hot water with the specified temperature can be provided more quickly, the conditions that the temperature of the outlet water is too high or too low can be better dealt with, and the reliable operation of the whole machine is ensured, so that the use safety is improved, and the user experience is enhanced.
In the foregoing technical solution, preferably, the determining unit is specifically configured to: when T is1≥TSWhen + X, the water temperature is judged to be in a first preset temperature interval; when T isS－X≤T1＜TSWhen + X, the water temperature is judged to be in a second preset temperature interval; when T is1＜TSWhen the temperature is-X, the temperature of the water is judged to be in a third preset temperature interval; wherein X is a first set temperature value.
In the technical scheme, the outlet water temperature T of the real temperature measuring water valve1And presetTemperature TSMaking a comparison to determine the water temperature TSThe temperature interval is located, and then the warm water valve adjustment interval is confirmed, and it can be understood that the more meticulous the temperature interval is divided, the more accurate the regulation to warm water valve opening. Preferably, in the present invention, the temperature is divided into three preset temperature intervals when T is1≥TSWhen + X, the water temperature is judged to be in a first preset temperature interval; when T isS－X≤T1＜TSWhen + X, the water temperature is judged to be in a second preset temperature interval; when T is1＜TSWhen the temperature is-X, the temperature of the water is judged to be in a third preset temperature interval; wherein, X is a fixed preset value and can be set according to actual conditions.
In any of the above technical solutions, preferably, the control unit specifically includes: the first control unit is used for adjusting the opening of the warm water valve to be the opening of a first preset multiple of the current opening when the outlet water temperature is in a first preset temperature range; the second control unit is used for adjusting the opening of the warm water valve according to a preset rule when the outlet water temperature is in a second preset temperature interval; the third control unit is used for reducing the opening degree of the warm water valve to the opening degree of a second preset multiple of the current opening degree when the outlet water temperature is in a third preset temperature range; when the opening degree of the second preset multiple of the current opening degree is smaller than or equal to the first opening degree threshold value, the opening degree of the warm water valve is adjusted to the first opening degree threshold value.
In the technical scheme, when the temperature of the outlet water is determined to be in a first preset temperature interval, the outlet water temperature exceeds the set temperature excessively, the water temperature adjusting amplitude is relatively larger, the opening degree of the warm water valve is immediately adjusted to be a first preset multiple of the current opening degree, the outlet water temperature is quickly dropped to the set temperature, and preferably the first preset multiple is 1.2 times; when the temperature of the outlet water is judged to be in a second preset temperature interval, the deviation between the outlet water temperature and the set temperature is small, and the outlet water temperature is adjusted according to a preset rule; when the temperature of the water is determined to be in a third preset temperature interval, the temperature of the water is over lower than the set temperature, the water temperature adjusting amplitude is relatively large, the opening degree of the warm water valve is adjusted to a second preset multiple of the current opening degree, preferably the second preset multiple is 0.9 time, if the adjusted temperature is still lower than the set temperature, the opening degree of the warm water valve is continuously reduced by 0.9 time, and it is particularly pointed out that if the minimum opening degree is reached in the adjusting process, namely the first opening degree threshold value is reached, the adjustment is not carried out, the warm water valve is prevented from being repeatedly opened and closed, the service life of the warm water valve is prolonged, and the reliability of the whole machine is improved.
In any of the above technical solutions, preferably, the second control unit is specifically configured to: and calculating the difference value between the water temperature and the preset temperature, and adjusting the opening degree of the warm water valve to be larger or smaller than a second opening degree threshold value according to the difference value and the increase or decrease of the second set temperature value of the outlet water temperature.
In the technical scheme, a preset rule is limited, the relation between the water temperature and the set temperature is determined by calculating the difference value between the actually measured outlet water temperature and the preset temperature, and the opening of the warm water valve is adjusted to be larger or smaller than a second opening threshold value according to the increase or decrease of the outlet water temperature to a second set temperature value. The opening of the temperature adjusting water valve is uniform, the water outlet temperature can be controlled, the phenomenon that the water outlet temperature is too high, too low, suddenly high and suddenly low is avoided, the user experience is improved, and meanwhile the reliability of the temperature adjusting water valve is improved.
In any of the above technical solutions, preferably, after the opening degree of the warm water valve is adjusted according to the preset temperature interval, the outlet water temperature T of the warm water valve is detected and determined again at intervals of a preset time length1And adjusting the opening degree of the warm water valve according to the preset temperature interval until the outlet water temperature reaches the preset temperature.
In the technical scheme, in the operation process, the outlet water temperature of the warm water valve is actually measured once every preset time length, so that the adjusting speed of the warm water valve is increased, the requirements of a user are responded in time, hot water at the temperature specified by the user is supplied more quickly, and the preset time length is preferably 60 seconds.
In any of the above technical solutions, preferably, the range of the first set temperature value is: 6 to 12 ℃; range of second set temperature value: 0 ℃ to 1 ℃; range of the second opening degree threshold: and (6) 30 to 34 steps.
In the technical scheme, the range of the first set temperature value is 6 ℃ to 12 ℃, the range of the second set temperature value is 0 ℃ to 1 ℃, and the range of the second opening threshold value is as follows: and (3) 30 to 34, but the method is not limited to the steps.
In any of the above technical solutions, preferably, the second opening degree threshold is 32 steps; the second set temperature value is 1 deg.c.
In the technical scheme, the second opening threshold is 32 steps, and the second set temperature value is 1 ℃, but not limited thereto. Specifically, when the actually measured water temperature is in a second preset temperature interval, the difference between the water temperature and the preset temperature is calculated, and the opening of the warm water valve is adjusted to be larger or smaller for 32 steps according to the rising or lowering of the water temperature by 1 ℃.
According to a third object of the present invention, there is provided a water heater, which includes a heat pump main unit, a compressor, a warm water valve, and further includes: the control device of the water heater in any technical scheme; and the temperature sensor comprises an environment temperature sensor and at least one water outlet temperature sensor.
According to the water heater of the present invention, the control device of the water heater described in any of the above technical solutions is adopted, so that the water heater has all the beneficial effects of the control device of the water heater, and details are not repeated herein.
According to a fourth object of the present invention, there is provided a computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor being adapted to perform the method steps of the method of controlling a water heater as described in any of the above claims.
According to a fifth object of the present invention, there is provided a computer readable storage medium, having stored thereon a computer program which, when being executed by a processor, carries out the method steps of the control method of a water heater as set forth in any one of the above-mentioned claims.
Additional aspects and advantages of 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 shows a flow chart diagram of a control method of a water heater according to a first embodiment of the present invention;
FIG. 2 is a flow chart illustrating a control method of a water heater according to a second embodiment of the present invention;
FIG. 3 is a flow chart illustrating a control method of a water heater according to a third embodiment of the present invention;
FIG. 4 is a flow chart illustrating a control method of a water heater according to a fourth embodiment of the present invention;
fig. 5 is a flow chart showing a control method of a water heater according to a fifth embodiment of the present invention;
FIG. 6 shows a schematic block diagram of a control device of a water heater according to one embodiment of the present invention;
FIG. 7 shows a schematic block diagram of a control device of a water heater according to another embodiment of the present invention;
FIG. 8 shows a schematic block diagram of a water heater according to one embodiment of the present invention;
FIG. 9 shows a schematic diagram of a commercial heat pump water heater according to a specific embodiment of the present invention;
FIG. 10 is a schematic diagram illustrating the relationship between the ambient temperature and the initial and minimum opening of the warm water valve in a commercial heat pump water heater according to an embodiment of the present invention;
FIG. 11 is a schematic diagram illustrating the adjustment of the opening of a warm water valve in a commercial heat pump water heater according to an embodiment of the present invention;
FIG. 12 shows a schematic diagram of a computer device according to an embodiment of the invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to 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.
As shown in fig. 1, a flow chart of a control method of a water heater according to a first embodiment of the present invention is schematically shown. The water heater comprises a heat pump host, a compressor and a warm water valve, and the control method of the water heater comprises the following steps:
102, detecting and judging an environment temperature interval where the environment temperature is;
104, determining the initial opening degree of the warm water valve and a first opening degree threshold value according to the environment temperature interval;
and step 110, adjusting the opening of the warm water valve according to a preset temperature interval.
The control method of the water heater provided by the invention divides the initial opening interval of the warm water valve for different environmental temperatures, and measures the outlet water temperature T of the warm water valve through real measurement1Is brought to a predetermined temperature TSComparing to determine the water temperature T1The temperature range is preset, so that the regulating range of the warm water valve is determined, and the opening degree of the warm water valve is further regulated. Specifically, when the unit performs directly-heated water heating, the warm water valve is opened to an initial opening degree corresponding to the ambient temperature according to the ambient temperature, the minimum opening degree value is determined, the warm water valve is avoided to ensure the operation reliability of the whole unit, and the outlet water temperature T of the warm water valve is judged after the compressor operates for a period of time1In which preset temperature interval, so as to determine the regulating interval of the warm water valve, the maximum opening degree is set in the regulating process, and generally speaking, the maximum opening degree is the maximum opening degree of the warm water valve. By means of embodiments of the inventionThe water heating valve can be used normally, the adjusting speed of the water heating valve is increased, hot water with specified temperature is provided more quickly, the situation that the water outlet temperature is too high and too low can be better dealt with, the reliable operation of the whole machine is ensured, the use safety is improved, and the user experience is enhanced.
Fig. 2 is a flow chart showing a control method of a water heater according to a second embodiment of the present invention. The water heater comprises a heat pump host, a compressor and a warm water valve, and the control method of the water heater comprises the following steps:
and 214, adjusting the opening degree of the warm water valve according to the preset temperature interval.
Wherein X is a first set temperature value.
In the embodiment, the outlet water temperature T of the real temperature measuring water valve1And a predetermined temperature TSMaking a comparison to determine the water temperature TSThe temperature interval is located, and then the warm water valve adjustment interval is confirmed, and it can be understood that the more meticulous the temperature interval is divided, the more accurate the regulation to warm water valve opening. Preferably, in the present invention, the temperature is divided into three preset temperature intervals when T is1≥TSWhen + X, the water temperature is judged to be in a first preset temperature interval; when T isS－X≤T1＜TSWhen + X, the water temperature is judged to be in a second preset temperature interval(ii) a When T is1＜TSWhen the temperature is-X, the temperature of the water is judged to be in a third preset temperature interval; wherein, X is a fixed preset value and can be set according to actual conditions.
As shown in fig. 3, a flow chart of a control method of a water heater according to a third embodiment of the invention is schematically shown. The water heater comprises a heat pump host, a compressor and a warm water valve, and the control method of the water heater comprises the following steps:
wherein X is a first set temperature value;
step 314, when the outlet water temperature is in a first preset temperature interval, adjusting the opening of the warm water valve to be the opening of a first preset multiple of the current opening;
step 316, when the outlet water temperature is in a second preset temperature interval, adjusting the opening of the warm water valve according to a preset rule;
In the technical scheme, when the temperature of the outlet water is determined to be in a first preset temperature interval, the outlet water temperature exceeds the set temperature excessively, the water temperature adjusting amplitude is relatively larger, the opening degree of the warm water valve is immediately adjusted to be a first preset multiple of the current opening degree, the outlet water temperature is quickly dropped to the set temperature, and preferably the first preset multiple is 1.2 times; when the temperature of the outlet water is judged to be in a second preset temperature interval, the deviation between the outlet water temperature and the set temperature is small, and the outlet water temperature is adjusted according to a preset rule; when the temperature of the water is determined to be in a third preset temperature interval, the temperature of the water is over lower than the set temperature, the water temperature adjusting amplitude is relatively large, the opening degree of the warm water valve is adjusted to a second preset multiple of the current opening degree, preferably the second preset multiple is 0.9 time, if the adjusted temperature is still lower than the set temperature, the opening degree of the warm water valve is continuously reduced by 0.9 time, and it is particularly pointed out that if the minimum opening degree is reached in the adjusting process, namely the first opening degree threshold value is reached, the adjustment is not carried out, the warm water valve is prevented from being repeatedly opened and closed, the service life of the warm water valve is prolonged, and the reliability of the whole machine is improved.
As shown in fig. 4, a flow chart of a control method of a water heater according to a fourth embodiment of the invention is shown. The water heater comprises a heat pump host, a compressor and a warm water valve, and the control method of the water heater comprises the following steps:
wherein X is a first set temperature value;
step 416, when the outlet water temperature is in a second preset temperature interval, calculating a difference value between the water temperature and the preset temperature, and according to the difference value, increasing or decreasing the opening degree of the warm water valve by a second opening degree threshold value according to the increase or decrease of the outlet water temperature by a second set temperature value;
418, when the outlet water temperature is in a third preset temperature range, adjusting the opening of the warm water valve to be smaller than the opening of a second preset multiple of the current opening; when the opening degree of the second preset multiple of the current opening degree is smaller than or equal to the first opening degree threshold value, the opening degree of the warm water valve is adjusted to the first opening degree threshold value.
In the embodiment, a preset rule is defined, the relation between the water temperature and the set temperature is determined by calculating the difference value between the measured outlet water temperature and the preset temperature, and the opening of the warm water valve is adjusted to be larger or smaller than a second opening threshold value according to the increase or decrease of the outlet water temperature by a second set temperature value. The opening of the temperature adjusting water valve is uniform, the water outlet temperature can be controlled, the phenomenon that the water outlet temperature is too high, too low, suddenly high and suddenly low is avoided, the user experience is improved, and meanwhile the reliability of the temperature adjusting water valve is improved.
As shown in fig. 5, a flow chart of a control method of a water heater according to a fifth embodiment of the present invention is schematically shown. The water heater comprises a heat pump host, a compressor and a warm water valve, and the control method of the water heater comprises the following steps:
wherein X is a first set temperature value;
step 516, when the outlet water temperature is in a second preset temperature interval, calculating a difference value between the water temperature and the preset temperature, and according to the difference value, increasing or decreasing the opening of the warm water valve by a second opening threshold value according to the increase or decrease of the outlet water temperature by a second set temperature value;
In this embodiment, in the operation process, the outlet water temperature of the warm water valve is measured at intervals of a preset time length, so that the adjustment speed of the warm water valve is increased, the requirements of a user are responded in time, hot water at a temperature specified by the user is supplied more quickly, and the preset time length is preferably 60 seconds.
In any of the above embodiments, preferably, the range of the first set temperature value: 6 to 12 ℃; range of second set temperature value: 0 ℃ to 1 ℃; range of the second opening degree threshold: and (6) 30 to 34 steps.
In this embodiment, the first set temperature value ranges from 6 ℃ to 12 ℃, the second set temperature value ranges from 0 ℃ to 1 ℃, the second opening degree threshold value ranges from: and (3) 30 to 34, but the method is not limited to the steps.
In any of the above embodiments, preferably, the second opening degree threshold is 32 steps; the second set temperature value is 1 deg.c.
In this embodiment, the second opening degree threshold value is 32 steps, and the second set temperature value is 1 ℃, but not limited thereto. Specifically, when the actually measured water temperature is in a second preset temperature interval, the difference between the water temperature and the preset temperature is calculated, and the opening of the warm water valve is adjusted to be larger or smaller for 32 steps according to the rising or lowering of the water temperature by 1 ℃.
As shown in fig. 6, a schematic block diagram of a control apparatus of a water heater according to an embodiment of the present invention. Wherein, the water heater includes heat pump host computer, compressor, warm water valve, and the controlling means 600 of this water heater includes:
a first detecting unit 602, configured to detect and determine an ambient temperature interval where an ambient temperature is located;
a determining unit 604, configured to determine an initial opening degree and a first opening degree threshold of the warm water valve according to the environment temperature interval;
a second detecting unit 606 for detecting the outlet water temperature T of the temperature water valve after the compressor runs for a preset time1；
A determining unit 608 for determining the outlet water temperature T1And a predetermined temperature TSComparing to judge the water outlet temperature T1The temperature is within a preset temperature interval;
and the control unit 610 is used for adjusting the opening of the warm water valve according to a preset temperature interval.
The control device of the water heater provided by the invention divides the initial opening interval of the warm water valve for different environmental temperatures, and measures the outlet water temperature T of the warm water valve through real temperature1Is brought to a predetermined temperature TSComparing to determine the water temperature T1The temperature range is preset, so that the regulating range of the warm water valve is determined, and the opening degree of the warm water valve is further regulated. Specifically, when the unit performs directly-heated water heating, the warm water valve is opened to the initial opening corresponding to the ambient temperature according to the ambient temperature, the minimum opening value is determined, and the warm water valve is avoided so as to ensure the reliability of the operation of the whole unitWhen the compressor runs for a period of time, the outlet water temperature T of the warm water valve is judged1In which preset temperature interval, so as to determine the regulating interval of the warm water valve, the maximum opening degree is set in the regulating process, and generally speaking, the maximum opening degree is the maximum opening degree of the warm water valve. According to the embodiment of the invention, the regulation speed of the warm water valve can be increased, the hot water with the specified temperature can be provided more quickly, the conditions of overhigh and overlow outlet water temperature can be better dealt with, and the reliable operation of the whole machine is ensured, so that the use safety is improved, and the user experience is enhanced.
In the foregoing embodiment, preferably, the determining unit 608 is specifically configured to: when T is1≥TSWhen + X, the water temperature is judged to be in a first preset temperature interval; when T isS－X≤T1＜TSWhen + X, the water temperature is judged to be in a second preset temperature interval; when T is1＜TSWhen the temperature is-X, the temperature of the water is judged to be in a third preset temperature interval; wherein X is a first set temperature value.
In the embodiment, the outlet water temperature T of the real temperature measuring water valve1And a predetermined temperature TSMaking a comparison to determine the water temperature TSThe temperature interval is located, and then the warm water valve adjustment interval is confirmed, and it can be understood that the more meticulous the temperature interval is divided, the more accurate the regulation to warm water valve opening. Preferably, in the present invention, the temperature is divided into three preset temperature intervals when T is1≥TSWhen + X, the water temperature is judged to be in a first preset temperature interval; when T isS－X≤T1＜TSWhen + X, the water temperature is judged to be in a second preset temperature interval; when T is1＜TSWhen the temperature is-X, the temperature of the water is judged to be in a third preset temperature interval; wherein, X is a fixed preset value and can be set according to actual conditions.
As shown in fig. 7, a schematic block diagram of a control apparatus of a water heater according to another embodiment of the present invention. Wherein, the water heater includes heat pump host computer, compressor, warm water valve, and the controlling means 700 of this water heater includes:
a first detecting unit 702, configured to detect and determine an ambient temperature interval where the ambient temperature is located;
a determining unit 704, configured to determine an initial opening degree and a first opening degree threshold of the warm water valve according to the environment temperature interval;
a second detecting unit 706 for detecting the outlet water temperature T of the temperature water valve after the compressor runs for a preset time period1；
A determination unit 708 for determining the outlet water temperature T1And a predetermined temperature TSComparing to judge the water outlet temperature T1The temperature is within a preset temperature interval;
the control unit 710 is used for adjusting the opening of the warm water valve according to a preset temperature interval; wherein,
the control unit 710 specifically includes:
the first control unit 7102 is used for adjusting the opening degree of the warm water valve to be the opening degree of a first preset multiple of the current opening degree when the outlet water temperature is in a first preset temperature interval;
the second control unit 7104 is used for adjusting the opening degree of the warm water valve according to a preset rule when the outlet water temperature is in a second preset temperature interval;
the third control unit 7106 is used for reducing the opening degree of the warm water valve to an opening degree which is a second preset multiple of the current opening degree when the outlet water temperature is in a third preset temperature range; when the opening degree of the second preset multiple of the current opening degree is smaller than or equal to the first opening degree threshold value, the opening degree of the warm water valve is adjusted to the first opening degree threshold value.
In the embodiment, when the water temperature is determined to be in a first preset temperature interval, which indicates that the water temperature exceeds the set temperature too much, and the water temperature adjustment amplitude is relatively larger, the opening degree of the warm water valve is immediately adjusted to be a first preset multiple of the current opening degree, so that the water temperature is quickly dropped to the set temperature, and preferably, the first preset multiple is 1.2 times; when the temperature of the outlet water is judged to be in a second preset temperature interval, the deviation between the outlet water temperature and the set temperature is small, and the outlet water temperature is adjusted according to a preset rule; when the temperature of the water is determined to be in a third preset temperature interval, the temperature of the water is over lower than the set temperature, the water temperature adjusting amplitude is relatively large, the opening degree of the warm water valve is adjusted to a second preset multiple of the current opening degree, preferably the second preset multiple is 0.9 time, if the adjusted temperature is still lower than the set temperature, the opening degree of the warm water valve is continuously reduced by 0.9 time, and it is particularly pointed out that if the minimum opening degree is reached in the adjusting process, namely the first opening degree threshold value is reached, the adjustment is not carried out, the warm water valve is prevented from being repeatedly opened and closed, the service life of the warm water valve is prolonged, and the reliability of the whole machine is improved.
In any of the above embodiments, preferably, the second control unit 7104 is specifically configured to: and calculating the difference value between the water temperature and the preset temperature, and adjusting the opening degree of the warm water valve to be larger or smaller than a second opening degree threshold value according to the difference value and the increase or decrease of the second set temperature value of the outlet water temperature.
In the embodiment, a preset rule is defined, the relation between the water temperature and the set temperature is determined by calculating the difference value between the measured outlet water temperature and the preset temperature, and the opening of the warm water valve is adjusted to be larger or smaller than a second opening threshold value according to the increase or decrease of the outlet water temperature by a second set temperature value. The opening of the temperature adjusting water valve is uniform, the water outlet temperature can be controlled, the phenomenon that the water outlet temperature is too high, too low, suddenly high and suddenly low is avoided, the user experience is improved, and meanwhile the reliability of the temperature adjusting water valve is improved.
In any of the above embodiments, preferably, after the opening degree of the warm water valve is adjusted according to the preset temperature interval, the outlet water temperature T of the warm water valve is detected and determined again at intervals of a preset time length1And adjusting the opening degree of the warm water valve according to the preset temperature interval until the outlet water temperature reaches the preset temperature.
In this embodiment, in the operation process, the outlet water temperature of the warm water valve is measured at intervals of a preset time length, so that the adjustment speed of the warm water valve is increased, the requirements of a user are responded in time, hot water at a temperature specified by the user is supplied more quickly, and the preset time length is preferably 60 seconds.
In any of the above embodiments, preferably, the range of the first set temperature value: 6 to 12 ℃; range of second set temperature value: 0 ℃ to 1 ℃; range of the second opening degree threshold: and (6) 30 to 34 steps.
In this embodiment, the first set temperature value ranges from 6 ℃ to 12 ℃, the second set temperature value ranges from 0 ℃ to 1 ℃, the second opening degree threshold value ranges from: and (3) 30 to 34, but the method is not limited to the steps.
In any of the above embodiments, preferably, the second opening degree threshold is 32 steps; the second set temperature value is 1 deg.c.
In this embodiment, the second opening degree threshold value is 32 steps, and the second set temperature value is 1 ℃, but not limited thereto. Specifically, when the actually measured water temperature is in a second preset temperature interval, the difference between the water temperature and the preset temperature is calculated, and the opening of the warm water valve is adjusted to be larger or smaller for 32 steps according to the rising or lowering of the water temperature by 1 ℃.
As shown in FIG. 8, a schematic block diagram of a water heater according to one embodiment of the present invention. Wherein, this water heater 800 includes heat pump host computer, compressor, warm water valve, still includes: a control device 802 of a water heater as described in any of the above embodiments; and a temperature sensor 804, the temperature sensor 804 comprising an ambient temperature sensor 8042 and at least one leaving water temperature sensor 8044.
The water heater 800 provided by the present invention adopts the control device 802 of the water heater described in any of the above embodiments, so that the present invention has all the advantages of the control device of the water heater, and details are not repeated herein.
Fig. 9 is a schematic diagram of a commercial heat pump water heater according to an embodiment of the present invention. The commercial heat pump water heater 900 comprises a heat pump main body 902, a warm water valve 904, an outlet water temperature sensor 906 and an ambient temperature sensor 908.
When the unit carries out direct-heating type water heating: firstly, according to the environment temperature T actually measured by the environment temperature sensor 908, the warm water valve 904 is opened to an initial opening degree corresponding to the environment temperature T, and a minimum opening degree is determined, as shown in fig. 10, wherein in order to avoid repeated adjustment of the warm water valve in the actual measurement, an error of 1 ℃ is allowed to exist in the environment temperature T;
after the compressor runs for a period of time, the warm water valve 904 measures the outlet water temperature T according to the outlet water temperature sensor 9061Adjusting is carried out, and the adjusting process is provided withThe maximum opening degree is 2800 steps of the maximum opening degree of the warm water valve 904, the operation process is judged once every 60 seconds, and the operation process is controlled as follows (wherein Ts is a set temperature, and X is a fixed preset value):
1. when T is detected1When the temperature is more than or equal to Ts + X ℃, the opening degree of the warm water valve 904 is immediately adjusted to be 1.2 times of the current opening degree, and the water temperature T is detected again after a period of time (such as 1min)1：
2. If Ts-X ℃ is less than or equal to T1< Ts + X deg.C, the temperature is controlled as shown in FIG. 11, specifically, if the effluent temperature T is1If the temperature is higher than the set temperature Ts and 1 ℃, the current opening degree is increased by 32 steps, and if the water outlet temperature T is higher than the set temperature Ts and 1 ℃, the water outlet temperature T is increased1If the temperature is lower than the set temperature Ts and 1 ℃, reducing the current opening by 32 steps; if the temperature T of the discharged water1If the temperature is higher than the set temperature Ts and 2 ℃, the current opening degree is increased by 64 steps, and if the water outlet temperature T is higher than the set temperature Ts and 2 ℃, the water outlet temperature T is increased1If the temperature is lower than the set temperature Ts and 2 ℃, reducing the current opening by 64 steps, and so on;
3. if T1If the temperature is less than Ts-X ℃, the warm water valve 904 is opened to 0.9 time of the current opening degree, if the temperature is still less than the set temperature, such as 46 ℃, the opening degree of the warm water valve 904 is continuously closed by 0.9 time, and if the minimum opening degree is reached in the adjusting process, the adjustment is not carried out.
In this embodiment, a control logic of the warm water valve is provided to facilitate use, enhance safety use, achieve a set water outlet temperature more quickly, and prevent the water outlet temperature from being too high, too low, and lasting too long. For different environmental temperatures, the initial opening interval of the warm water valve is divided, the final opening value is approached more quickly, and when the set value is exceeded, the multiplying power is amplified and reduced by steps, and the preset temperature is reached more quickly. Thereby can be in normal user's use for the governing speed of warm water valve, faster provide the hot water of appointed temperature, reply that moreover can be better the leaving water temperature too high, the condition of crossing low, protection user, protection machine reliable operation.
FIG. 12 is a schematic diagram of a computer device according to one embodiment of the invention. The computer device 1 comprises a memory 12, a processor 14 and a computer program stored on the memory 12 and executable on the processor 14, the processor 14 being adapted to perform the method steps of the method of controlling a water heater as described in any of the embodiments above.
According to the computer equipment 1, for different environmental temperatures, the initial opening interval of the warm water valve is divided, the final opening value is approached more quickly, and when the set value is exceeded, the multiplying power is amplified and reduced by steps, so that the preset temperature is reached more quickly. Thereby can be in normal user's use for the governing speed of warm water valve, faster provide the hot water of appointed temperature, reply that moreover can be better the leaving water temperature too high, the condition of crossing low, protection user, protection machine reliable operation.
According to a fifth object of the present invention, there is provided a computer readable storage medium having stored thereon a computer program which, when being executed by a processor, carries out the method steps of the method of controlling a water heater as set forth in any one of the above embodiments.
The computer readable storage medium provided by the invention divides the initial opening interval of the warm water valve for different environmental temperatures, approaches the final opening value more quickly, and amplifies and reduces the number of steps to reach the preset temperature more quickly when the set value is exceeded. Thereby can be in normal user's use for the governing speed of warm water valve, faster provide the hot water of appointed temperature, reply that moreover can be better the leaving water temperature too high, the condition of crossing low, protection user, protection machine reliable operation.
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 (15)
1. A control method of a water heater comprises a heat pump host, a compressor and a warm water valve, and is characterized by comprising the following steps:
detecting and judging an environment temperature interval in which the environment temperature is positioned;
determining an initial opening degree of the warm water valve and a first opening degree threshold value according to the environment temperature interval, wherein the first opening degree threshold value is a minimum opening degree;
after the compressor runs for a preset time, detecting the outlet water temperature T of the warm water valve1；
Will the temperature T of the outlet water1And a predetermined temperature TSComparing and judging the water outlet temperature T1The temperature is within a preset temperature interval;
adjusting the opening of the warm water valve according to the preset temperature interval;
wherein, the water outlet temperature T is adjusted1And a predetermined temperature TSComparing to determine the water outlet temperature TSThe step of presetting the temperature interval specifically comprises the following steps:
when T is1≥TSWhen the temperature is + X, judging that the outlet water temperature is in a first preset temperature interval;
when T isS－X≤T1＜TSWhen the temperature is + X, judging that the outlet water temperature is in a second preset temperature interval;
when T is1＜TSWhen the temperature of the effluent is X, judging that the temperature of the effluent is in a third preset temperature interval;
wherein X is a first set temperature value;
the step of adjusting the opening degree of the warm water valve according to the preset temperature interval specifically comprises the following steps:
when the outlet water temperature is in a first preset temperature range, the opening degree of the warm water valve is adjusted to be the opening degree of a first preset multiple of the current opening degree;
when the outlet water temperature is in a third preset temperature range, the opening degree of the warm water valve is adjusted to be smaller than the opening degree of a second preset multiple of the current opening degree;
when the opening degree of the second preset multiple of the current opening degree is smaller than or equal to the first opening degree threshold value, the opening degree of the warm water valve is adjusted to the first opening degree threshold value.
2. The method for controlling a water heater according to claim 1, wherein the step of adjusting the opening degree of the warm water valve according to the preset temperature interval specifically comprises:
and when the outlet water temperature is in a second preset temperature interval, adjusting the opening of the warm water valve according to a preset rule.
3. The control method of the water heater according to claim 2, wherein the step of adjusting the opening degree of the warm water valve according to a preset rule specifically comprises:
and calculating the difference value between the outlet water temperature and the preset temperature, and adjusting the opening degree of the warm water valve to be larger or smaller by a second opening degree threshold value according to the difference value when the outlet water temperature is increased or decreased by a second set temperature value.
4. The control method of a water heater according to any one of claims 1 to 3,
after the opening degree of the warm water valve is adjusted according to the preset temperature interval, detecting and judging the outlet water temperature T of the warm water valve again at intervals of preset time length1And adjusting the opening of the warm water valve according to the preset temperature interval until the outlet water temperature reaches the preset temperature.
5. The control method of a water heater according to claim 3,
range of the first set temperature value: 6 to 12 ℃;
range of the second set temperature value: 0 ℃ to 1 ℃;
range of the second opening degree threshold: and (6) 30 to 34 steps.
6. The control method of a water heater according to claim 5,
the second opening degree threshold value is 32 steps;
the second set temperature value is 1 ℃.
7. The utility model provides a controlling means of water heater, the water heater includes heat pump host computer, compressor, warm water valve, its characterized in that, the controlling means of water heater includes:
the first detection unit is used for detecting and judging an environment temperature interval where the environment temperature is located;
the determining unit is used for determining the initial opening degree of the warm water valve and a first opening degree threshold value according to the environment temperature interval, wherein the first opening degree threshold value is the minimum opening degree;
a second detection unit for detecting the water outlet temperature T of the warm water valve after the compressor runs for a preset time1；
A judging unit for judging the water outlet temperature T1And a predetermined temperature TSComparing and judging the water outlet temperature T1The temperature is within a preset temperature interval;
the control unit is used for adjusting the opening of the warm water valve according to the preset temperature interval;
the determining unit is specifically configured to:
when T is1≥TSWhen the temperature is + X, judging that the outlet water temperature is in a first preset temperature interval;
when T isS－X≤T1＜TSWhen the temperature is + X, judging that the outlet water temperature is in a second preset temperature interval;
when T is1＜TSWhen the temperature of the effluent is X, judging that the temperature of the effluent is in a third preset temperature interval;
wherein X is a first set temperature value;
wherein, the control unit specifically includes:
the first control unit is used for adjusting the opening of the warm water valve to be the opening of a first preset multiple of the current opening when the outlet water temperature is in a first preset temperature range;
the third control unit is used for reducing the opening degree of the warm water valve to the opening degree of a second preset multiple of the current opening degree when the outlet water temperature is in a third preset temperature range;
when the opening degree of the second preset multiple of the current opening degree is smaller than or equal to the first opening degree threshold value, the opening degree of the warm water valve is adjusted to the first opening degree threshold value.
8. The control device of the water heater according to claim 7, wherein the control unit further comprises:
and the second control unit is used for adjusting the opening of the warm water valve according to a preset rule when the outlet water temperature is in a second preset temperature interval.
9. The control device of a water heater according to claim 8, wherein the second control unit is specifically configured to:
and calculating the difference value between the outlet water temperature and the preset temperature, and adjusting the opening degree of the warm water valve to be larger or smaller by a second opening degree threshold value according to the difference value when the outlet water temperature is increased or decreased by a second set temperature value.
10. The control device of a water heater as claimed in any one of claims 7 to 9,
after the opening degree of the warm water valve is adjusted according to the preset temperature interval, detecting and judging the outlet water temperature T of the warm water valve again at intervals of preset time length1And adjusting the opening of the warm water valve according to the preset temperature interval until the outlet water temperature reaches the preset temperature.
11. The control device of a water heater according to claim 9,
range of the first set temperature value: 6 to 12 ℃;
range of the second set temperature value: 0 ℃ to 1 ℃;
range of the second opening degree threshold: and (6) 30 to 34 steps.
12. The control device of a water heater according to claim 11,
the second opening degree threshold value is 32 steps;
the second set temperature value is 1 ℃.
13. The utility model provides a water heater, the water heater includes heat pump host computer, compressor, warm water valve, its characterized in that still includes: a control device of the water heater as claimed in any one of claims 7 to 12; and
the temperature sensor comprises an environment temperature sensor and at least one outlet water temperature sensor.
14. Computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor is adapted to perform the method steps of any of claims 1 to 6.
15. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method steps of any one of claims 1 to 6.
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| CN108158412B (en) * | 2018-03-07 | 2020-03-27 | 佛山市顺德区美的饮水机制造有限公司 | Method and system for determining water temperature change trend of water dispenser and water dispenser |
| CN108507171B (en) * | 2018-03-15 | 2020-09-04 | 珠海格力电器股份有限公司 | Control method and device for heat pump water heater |
| CN108895662B (en) * | 2018-06-12 | 2021-02-09 | 合肥美的暖通设备有限公司 | Water heater, control method and device thereof and readable storage medium |
| CN110108039B (en) * | 2019-04-04 | 2022-03-18 | 芜湖美的厨卫电器制造有限公司 | Control method of gas water heater and gas water heater |
| CN110089941B (en) * | 2019-04-10 | 2022-04-29 | 深圳拓邦股份有限公司 | Temperature regulation control method and system and drinking equipment |
| CN111956075A (en) * | 2019-05-20 | 2020-11-20 | 深圳拓邦股份有限公司 | Water outlet control method and system and coffee machine |
| CN110567168B (en) * | 2019-09-29 | 2020-12-22 | 珠海格力电器股份有限公司 | Water heater outlet water temperature control method, device and equipment and water heater system |
| CN114294817A (en) * | 2021-12-03 | 2022-04-08 | 华帝股份有限公司 | Electric water heater and control method thereof |
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