CN110131897B - Control method of gas water heater and gas water heater - Google Patents
Control method of gas water heater and gas water heater Download PDFInfo
- Publication number
- CN110131897B CN110131897B CN201910271812.2A CN201910271812A CN110131897B CN 110131897 B CN110131897 B CN 110131897B CN 201910271812 A CN201910271812 A CN 201910271812A CN 110131897 B CN110131897 B CN 110131897B
- Authority
- CN
- China
- Prior art keywords
- water heater
- preset
- gas water
- output value
- valve body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
Abstract
The invention discloses a control method of a gas water heater and the gas water heater. The control method of the gas water heater comprises the following steps: acquiring the running time of the gas water heater; judging whether the operation duration is in a preset range or not; under the condition that the operation duration is within the preset range, judging whether the force output value of the valve body is equal to a preset force output value or not, wherein the preset force output value is related to the preset range; and under the condition that the output value of the valve body is not equal to the preset output value, adjusting the output value of the valve body according to the preset output value. So, the value of exerting oneself of valve body is adjusted for long through gas heater's operation for gas heater's operation more is adapted to the environment, can realize more accurate control to gas heater like this, avoids or reduces the problem that gas heater system control deviation appears.
Description
Technical Field
The invention relates to the technical field of water heaters, in particular to a control method of a gas water heater and the gas water heater.
Background
In the related art, a gas water heater is operated, generally by controlling a gas flow rate to control a gas combustion heat required for supplying hot water. For the gas water heater with the blower, the rotating speed of the blower is controlled to provide corresponding air volume so as to maintain the gas water heater to perform combustion operation under good conditions. However, generally, the service environment of each gas water heater is different, for example, if each gas water heater is started in a cold day or runs for a long time in a hot day, if the same control strategy is adopted for each gas water heater, it is easy to cause control deviation of the individual gas water heater, and thus the gas water heater has problems of incomplete combustion, vibration combustion, exhaust emission and the like.
Disclosure of Invention
The embodiment of the invention provides a control method of a gas water heater and the gas water heater.
The control method of the gas water heater of the embodiment of the invention comprises the following steps:
acquiring the running time of the gas water heater;
judging whether the operation duration is in a preset range or not;
under the condition that the operation duration is within the preset range, judging whether the force output value of the valve body is equal to a preset force output value or not, wherein the preset force output value is related to the preset range;
and under the condition that the output value of the valve body is not equal to the preset output value, adjusting the output value of the valve body according to the preset output value.
In the control method of the gas water heater, the output value of the valve body is adjusted according to the running time of the gas water heater, so that the running of the gas water heater is more suitable for the environment, the gas water heater can be controlled more accurately, the problem of system control deviation of the gas water heater is avoided or reduced, and the problems of incomplete combustion, vibration combustion, high waste gas emission and the like of the gas water heater can be improved.
In certain embodiments, the control method comprises:
and under the condition that the output value of the valve body is equal to the preset output value, controlling the gas water heater to continuously operate according to the current output value of the valve body.
In some embodiments, the preset range includes a plurality of sub-ranges, the number of the preset force output values is multiple, and each preset force output value corresponds to one of the sub-ranges, and the control method includes:
and determining the corresponding preset force output value according to the sub-range of the operation duration.
In certain embodiments, the control method comprises:
judging whether the operation time length is greater than the upper limit of the preset range;
and under the condition that the operation duration is greater than the upper limit of the preset range, controlling the gas water heater to send out first alarm information and/or stop operating.
In some embodiments, the preset range includes an alarm threshold that is closer to an upper limit of the preset range than to a lower limit of the preset range, and the control method includes:
and under the condition that the operation time length is within the range limited by the alarm threshold value and the upper limit of the preset range, controlling the gas water heater to send out second alarm information.
In some embodiments, determining whether the operation duration is within a preset range includes:
determining a parameter value according to the operation duration;
judging whether the parameter value is in a preset parameter range or not;
and determining that the operation duration is within the preset range under the condition that the parameter value is within the preset parameter value range.
In some embodiments, the preset range includes a plurality of sub-ranges, the number of the parameter values is multiple, each of the parameter values corresponds to one of the sub-ranges, and determining the parameter value according to the operation duration includes:
and determining the corresponding parameter value according to the sub-range of the operation duration.
The gas water heater comprises a valve body, a duration acquisition unit and a control unit, wherein the control unit is connected with the valve body and the duration acquisition unit, the duration acquisition unit is used for acquiring the operation duration of the gas water heater, the control unit is used for judging whether the operation duration is in a preset range or not, judging whether a force output value of the valve body is equal to a preset force output value or not when the operation duration is in the preset range, and adjusting the force output value of the valve body according to the preset force output value when the force output value of the valve body is not equal to the preset force output value, wherein the preset force output value is related to the preset range.
In the gas water heater of the embodiment of the invention, the output value of the valve body is adjusted through the operation duration of the gas water heater, so that the operation of the gas water heater is more suitable for the environment, the gas water heater can be controlled more accurately, the problem of system control deviation of the gas water heater is avoided or reduced, and the problems of incomplete combustion, vibration combustion, high waste gas emission and the like of the gas water heater can be improved.
In some embodiments, the control unit is configured to control the gas water heater to continue to operate at the current output value of the valve body if the output value of the valve body is equal to the preset output value.
In some embodiments, the preset range includes a plurality of sub-ranges, the number of the preset force output values is multiple, each preset force output value corresponds to one of the sub-ranges, and the control unit is configured to determine the corresponding preset force output value according to the sub-range where the operation duration is located.
In some embodiments, the control unit is configured to control the gas water heater to send out the first warning message and/or stop operating if the operation duration is greater than the upper limit of the preset range.
In some embodiments, the preset range includes an alarm threshold, the alarm threshold is closer to an upper limit of the preset range than to a lower limit of the preset range, and the control unit is configured to control the gas water heater to send out the second alarm information if the operation duration is within a range defined by the alarm threshold and the upper limit of the preset range.
In some embodiments, the control unit is configured to determine a parameter value according to the operation duration, determine whether the parameter value is within a preset parameter range, and determine that the operation duration is within the preset range if the parameter value is within the preset parameter value range.
In some embodiments, the preset range includes a plurality of sub-ranges, the number of the parameter values is multiple, each of the parameter values corresponds to one of the sub-ranges, and the control unit is configured to determine the corresponding parameter value according to the sub-range in which the operation duration is located.
The gas water heater comprises a valve body, a processor and a memory, wherein the processor is connected with the valve body and the memory, the memory stores a control program of the gas water heater, and the control program of the gas water heater is executed by the processor to realize the control method of the gas water heater in any embodiment.
In the gas water heater of the embodiment of the invention, the output value of the valve body is adjusted through the operation duration of the gas water heater, so that the operation of the gas water heater is more suitable for the environment, more accurate control can be realized on the gas water heater, the problem of system control deviation of the gas water heater is avoided or reduced, and the problems of incomplete combustion, vibration combustion, high waste gas emission and the like of the gas water heater can be improved.
Additional aspects and advantages of embodiments 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 embodiments 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 flowchart of a control method of a gas water heater according to an embodiment of the present invention;
FIG. 2 is a schematic block diagram of a gas water heater in accordance with an embodiment of the present invention;
FIG. 3 is a graph of hot water production rate versus valve outlet force value for a gas water heater in accordance with an embodiment of the present invention;
FIG. 4 is a graph of the relationship of the length of operation of the embodiment of the present invention to the force output of the valve body;
FIG. 5 is another graph of the hot water production rate of the gas water heater and the outlet force value of the valve body according to the embodiment of the present invention;
FIG. 6 is another flow chart of a method of controlling a gas water heater in accordance with an embodiment of the present invention;
fig. 7 is still another flowchart of a control method of the gas water heater of the embodiment of the invention;
FIG. 8 is a graph of run length versus parameter value for an embodiment of the present invention;
FIG. 9 is another graph of the hot water production rate of the gas water heater and the valve body output force value of the embodiment of the present invention;
FIG. 10 is another block schematic diagram of a gas water heater in accordance with an embodiment of the present invention.
Description of the main element symbols:
the gas water heater comprises a gas water heater 100, a valve body 10, a duration acquisition unit 20, a control unit 30, a water temperature acquisition unit 40, a water temperature sensor 41, a water flow rate acquisition unit 50, a water flow rate sensor 51, a processor 110 and a storage 120.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the embodiments of the present invention, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; either directly or indirectly through intervening media, either internally or in any other relationship. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.
The following disclosure provides many different embodiments or examples for implementing different configurations of embodiments of the invention. In order to simplify the disclosure of embodiments of the invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, embodiments of the invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, embodiments of the present invention provide examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
Referring to fig. 1 and 2, a control method of a gas water heater 100 according to an embodiment of the present invention is provided. The gas water heater 100 includes a valve body 10. The control method of the gas water heater 100 includes:
step S10, acquiring the running time of the gas water heater 100;
step S20, judging whether the operation duration is in a preset range;
in the case that the operation duration is within the preset range, step S30, determining whether the output value of the valve body 10 is equal to the preset output value;
in the case that the output value of the valve body 10 is not equal to the preset output value, step S40, the output value of the valve body 10 is adjusted according to the preset output value.
The control method of the gas water heater 100 according to the embodiment of the present invention can be realized by the gas water heater 100 according to the embodiment of the present invention. The gas water heater 100 further includes a duration acquisition unit 20 and a control unit 30, and the control unit 30 is connected to the duration acquisition unit 20. Step S10 may be implemented by the duration acquisition unit 20. The steps S20, S30, and S40 may be implemented by the control unit 30.
That is, the duration acquiring unit 20 is configured to acquire the operation duration of the gas water heater 100. The control unit 30 is configured to determine whether the operation duration is within a preset range, determine whether the output value of the valve body 10 is equal to the preset output value when the operation duration is within the preset range, and adjust the output value of the valve body 10 according to the preset output value when the output value of the valve body 10 is not equal to the preset output value. Wherein the predetermined force output value is associated with the predetermined range. Wherein being within the predetermined range comprises an upper limit and a lower limit of the predetermined range. It is understood that the operation of the gas water heater 100 refers to an operation state in which the gas water heater 100 ignites to heat and generate hot water.
The valve body 10 of the gas water heater 100 according to the embodiment of the present invention may adopt a proportional valve (the proportional valve may be an electromagnetic valve), and the gas flow rate through the valve body 10 may be controlled by controlling the voltage across the valve body 10. The output value of the valve body 10 of the present embodiment can be understood as the duty ratio of the voltage applied across the valve body 10. For example, with a duty cycle of 80%, it is understood that 80% of the time in a cycle is input high (e.g., 5V) and the remaining 20% of the time is input low (e.g., 0V). That is, when the duty ratio is 80%, the output value of the valve body 10 is 80%. It should be noted that the larger the output value of the valve body 10, the larger the opening degree of the valve body 10, and the larger the gas flow rate passing through the valve body 10. In other embodiments, the output value of the valve body 10 may also be represented by a current, and is not limited herein.
It will be appreciated that in other embodiments, other valves may be used for the valve body, such as a rotary valve, and the value of the force applied to the valve body may be understood as the angle of rotation of the rotary valve.
Some or all of the functions of the duration acquiring unit 20 and the control unit 30 of the embodiment of the present invention may be implemented by a controller or a processor, or a control panel, or a computer board of the gas water heater 100 itself, or the duration acquiring unit 20 and the control unit 30 are manufactured as a separate control box or control terminal including the controller, the processor, the control panel, or the computer board, and are installed on the gas water heater 100, or other locations outside the gas water heater 100.
In summary, in the control method of the gas water heater 100 and the gas water heater 100 of the embodiment, the output value of the valve body 10 is adjusted according to the operation duration of the gas water heater 100, so that the operation of the gas water heater 100 is more suitable for the environment, and thus, the gas water heater 100 can be controlled more accurately, the problem of system control deviation of the gas water heater 100 is avoided or reduced, and the problems of incomplete combustion, vibration combustion, high exhaust gas emission and the like of the gas water heater 100 can be improved.
In the embodiment of the invention, the running time length can be timed when the gas water heater starts to run. The operation duration is obtained and can be carried out when the gas water heater operates or before the gas water heater operates. It can be understood that the running time length acquired before running is zero.
Referring to fig. 2, a gas water heater 100 according to an embodiment of the present invention includes a water temperature collecting unit 40 and a water flow rate collecting unit 50. The water temperature collecting unit 40 is used for collecting the inlet water temperature and the outlet water temperature of the gas water heater 100. The water flow rate collecting unit 50 is used to collect the water flow rate of the gas water heater 100. The control unit 30 can obtain the hot water yield of the gas water heater 100 by calculating the temperature difference between the inlet water temperature of the gas water heater 100 and the outlet water temperature of the gas water heater 100 and calculating the product of the temperature difference and the water flow rate of the gas water heater 100. Specifically, the gas water heater 100 includes a water temperature sensor 41 and a water flow rate sensor 51, the water temperature collecting unit 40 is connected to the water temperature sensor 41, the water flow rate collecting unit 50 is connected to the water flow rate sensor 51, the water temperature sensor 41 can be used for detecting the inlet water temperature and the outlet water temperature, and the water temperature collecting unit 40 collects the inlet water temperature and the outlet water temperature through the water temperature sensor 41. The water flow rate sensor 51 can be used to detect the water flow rate of the gas water heater 100. The water flow rate collecting unit 50 collects the water flow rate of the gas water heater 100 through the water flow rate sensor 51.
In one example, the water flow rate sensor 51 may be disposed at a cold water inlet end of the gas water heater 100, and in this case, the water flow rate sensor 51 may be configured to detect the cold water flow rate of the gas water heater 100. In general, the cold water flow rate of the gas water heater 100 is equal to the hot water flow rate, and in another example, the water flow rate sensor 51 may be disposed at the hot water outlet end of the gas water heater 100, and the water flow rate sensor 51 may be used for detecting the hot water flow rate of the gas water heater 100.
In some embodiments, the gas water heater 100 may also include a timer, the duration obtaining unit is connected to the timer, the timer starts to count time when the operation of the gas water heater starts, and the duration obtaining unit obtains the operation duration of the gas water heater from the timer. In some embodiments, the duration obtaining unit may also obtain the operation duration of the gas water heater from the control terminal, for example, the gas water heater may be connected to the control terminal in a wired or wireless manner, and the control terminal may be configured to send an operation instruction to the gas water heater and start timing. And the gas water heater is started and operated according to the operation instruction. The duration obtaining unit obtains the operation duration of the gas water heater from the control terminal. Of course, the gas water heater may start to operate by sending an operation start signal to the control terminal, and the control terminal may start timing. The control terminal includes, but is not limited to, a mobile phone, a tablet computer, a personal computer, a wearable smart device, a remote controller, a household appliance, and the like.
It should be noted that, as the output value of the valve body 10 is larger, the air volume of the valve body 10 is larger, the gas flow rate inside the gas water heater 100 is also larger, and the gas combustion is more sufficient, so that the larger the temperature difference between the inlet water temperature of the gas water heater 100 and the outlet water temperature of the gas water heater 100 is, the larger the hot water yield is. The hot water yield can be calculated by the inlet water temperature and the outlet water temperature detected by the water temperature sensor and the cold water flow rate of the gas water heater 100 detected by the water flow rate sensor, that is, there is a corresponding relationship between the outlet force value of the valve body 10 and the hot water yield, as shown in fig. 3, the outlet force value of one valve body corresponds to one hot water yield. The output value P of the valve body 10 and the hot water yield C are in a substantially linear positive correlation.
Therefore, the hot water yield of the gas water heater 100 is related to the output value of the valve body 10, and the corresponding relationship between the hot water yield and the output value of the valve body 10 can be calibrated by testing or experiment, for example, in the case that a certain valve body output value is selected, the gas water heater 100 operates, and the corresponding hot water yield is calculated by the data collected by the sensor, so that the corresponding relationship between the output value of the valve body 10 and the hot water yield can be calibrated.
It should be noted that the operation duration of the gas water heater 100 may have a certain effect on the gas water heater 100, and when the operation duration of the gas water heater 100 is not long (for example, when the gas water heater 100 is just operated), the friction between the components inside the gas water heater 100 during operation is large, which is not beneficial to the operation of the gas water heater 100, so the output value of the valve body 10 needs to be adjusted to make the combustion water heater 100 burn sufficiently.
Further, when the operation length of the gas water heater 100 is long, the heat generation amount of each element of the gas water heater 100 is large, and therefore, it is also necessary to appropriately adjust the output value of the valve body 10 so that the operation of the combustion water heater 100 is maintained in a good state. Therefore, in the embodiment, different preset output values can be obtained according to different running durations, and the output value of the valve body 10 is adjusted according to the preset output value, so that more accurate control can be realized on the gas water heater 100, the problem of system control deviation of the gas water heater 100 can be avoided or reduced, and the problems of incomplete combustion, vibration combustion, high waste gas emission and the like of the gas water heater 100 can be improved.
Referring to fig. 1, in some embodiments, a control method includes:
if the output value of the valve body 10 is equal to the preset output value, step S50 is executed to control the gas water heater 100 to continue operating with the current output value of the valve body 10.
The control method of the above embodiment can be realized by the gas water heater 100 of the present embodiment. Wherein step S50 may be implemented by the control unit 30. That is, the control unit 30 is configured to control the gas water heater 100 to continue to operate at the current output value of the valve body 10 when the output value of the valve body 10 is equal to the preset output value.
Therefore, under the condition that the output value of the valve body 10 is equal to the preset output value, the operation duration is stable at the moment, the fluctuation is small, the gas water heater 100 is controlled to continue to operate according to the current output value of the valve body 10 at the moment, and therefore the excessively frequent adjustment of the output value of the valve body 10 of the gas hot water can be avoided, and the good operation state of the gas water heater 100 can be maintained.
It should be noted that, under the condition that there is an error between the output value of the valve body 10 and the preset output value, the output value of the valve body 10 and the preset output value may be considered to be equal, and the size of the error range may be set according to specific conditions (such as design requirements, sensitivity, etc.).
And adjusting the output value of the valve body according to the preset output value, so that the output value of the valve body is equal to the preset output value. It should be noted that, after the output value of the valve body is adjusted according to the preset output value, the process proceeds to step S50, and the gas water heater 100 is controlled to operate at the current output value of the valve body 10.
In some embodiments, the preset range includes a plurality of sub-ranges, the number of the preset force output values is multiple, each preset force output value corresponds to each sub-range one by one, and the control method includes: and determining a corresponding preset force output value according to the sub-range of the operation duration.
The control method of the above embodiment can be implemented by the control unit 30 of the embodiment of the present invention. The control unit 30 is configured to determine a corresponding preset output value according to the sub-range of the operation duration. In this way, the predetermined force value of the valve body 10 can be accurately obtained.
Referring to fig. 4, specifically, the preset range may be pre-divided into a plurality of sub-ranges, each sub-range corresponds to a preset output value of the valve body 10, and the control unit 30 may determine the corresponding preset output value of the valve body 10 according to the sub-range of the operation duration when the operation duration is obtained. In one embodiment, the predetermined range is 0 seconds to 3000 seconds, and the sub-ranges are [0,30 ], [30,60 ], [60,1200 ], [1200,1800 ], [1800,2400 ], and [2400,3000], respectively, wherein the predetermined force value corresponding to the sub-range [0,30 ] is 90%. The preset force output value for sub-range [30,60) is 95%. The sub-range [60,1200) corresponds to a preset output value of 100%. The sub-range [1200,1800) corresponds to a preset output value of 100%. The sub-range [1800,2400) corresponds to a preset force value of 95%. The sub-range [2400,3000] corresponds to a preset force value of 90%. It should be noted that, the division of the multiple sub-ranges and the corresponding preset output values can be set according to specific situations, which are described above only as examples, and the implementation of the present invention is not limited specifically.
It should be noted that the output values of the valve body 10 may include P0, P1, P2, …, Pn (as shown in fig. 4), where n is a natural number greater than or equal to 0, and n +1 represents the number of the sub-ranges.
Referring to fig. 4 and 5, in fig. 4, the abscissa represents the operating time period t, and the ordinate represents the output value P of the valve body. The preset force value of the valve body corresponding to the sub-range [0,30) is P0, the preset force value of the valve body corresponding to the sub-range [30,60) is P1, the preset force value of the valve body corresponding to the sub-range [60,1200) is P2, and so on.
Specifically, referring to fig. 5, the abscissa represents the hot water yield C, and the ordinate represents the valve output P. The preset force value can be understood as a value on a preset relation line related to the hot water production rate of the gas water heater 100 (please refer to fig. 5). Under the condition that the operating strength is within a certain sub-range, the control unit 30 controls the operating value of the valve body 10 to operate according to the preset relation line corresponding to the pair of ranges, and the larger the hot water yield C is, the larger the value corresponding to the output value of the valve body 10 is.
Referring to fig. 6, in some embodiments, the control method includes:
step S60, judging whether the operation duration is greater than the upper limit of the preset range;
and step S70, controlling the gas water heater 100 to send out first alarm information and/or stop running under the condition that the running time is longer than the upper limit of the preset range.
The control method described above can be implemented by the gas water heater 100 of the present embodiment. Steps S60 and S70 may be implemented by the control unit 30. The control unit 30 is configured to determine whether the operation duration is greater than an upper limit of the preset range, and control the gas water heater 100 to send a first alarm message and/or stop operation when the operation duration is greater than the upper limit of the preset range.
Therefore, under the condition that the operation time length is greater than the upper limit of the preset range, the problems that the exhaust gas emission is high or the gas water heater 100 is damaged due to overlarge heat productivity and the like caused by insufficient combustion of the gas water heater 100 can be avoided, and the gas water heater 100 is controlled to send alarm information under the condition that the operation time length is greater than the upper limit of the preset range, so that a user can be timely informed of the operation state of the gas water heater 100.
Specifically, in one embodiment, in the case that the operation duration is greater than the upper limit of the preset range, the gas water heater 100 is controlled to send out the first alarm message and stop operating. In another embodiment, in the case that the operation time length is greater than the upper limit of the preset range, the gas water heater 100 is controlled to send out the first alarm message. In yet another embodiment, the gas water heater 100 is controlled to stop operating in the case that the operation time period is greater than the upper limit of the preset range.
It should be noted that, under the condition that the operation duration is greater than the upper limit of the preset range, it is described that if the gas water heater 100 continues to operate for the operation duration at this time, the gas water heater 100 is likely to be burnt insufficiently, or the gas water heater is likely to be damaged due to large power consumption of each element of the gas burner 100 due to too long operation duration, and the like, and therefore, in the embodiment of the present invention, under the condition that the operation duration is greater than the upper limit of the preset range, the gas water heater 100 is controlled to send out the first alarm message and/or stop operating, so that the problems of vibration burning, high exhaust gas emission, or the like caused by incomplete burning of the gas water heater 100 can be reduced or avoided, and the user can be timely notified of the operation state of the gas water heater 100.
It should be noted that the operation duration may have a certain influence on the gas water heater 100, after the gas water heater 100 operates, the operation duration of the gas water heater 100 starts to increase, and each component inside the gas water heater 100 during operation can operate in a better performance state, so as to be beneficial to the operation of the gas water heater 100, and further, the output value of the valve body 10 may be adjusted to be lower, so that the combustion water heater 100 burns better, and the hot water yield is higher. However, as the operation length is further increased, the cumulative amount of heat generated between the respective elements of the gas water heater 100 is increased, and excessive heat and long operation time may reduce the operation performance of the respective elements and may possibly damage the gas water heater 100. Therefore, after the operation time length exceeds the upper limit of the preset range, the gas water heater 100 is controlled to send out the first alarm message and/or stop operating.
In some embodiments, the preset range includes an alarm threshold that is closer to an upper limit of the preset range than to a lower limit of the preset range, and the control method includes:
and under the condition that the operation time length is within the range limited by the alarm threshold value and the upper limit of the preset range, controlling the gas water heater 100 to send out second alarm information.
The control method described above can be implemented by the control unit 30 of the present embodiment. The control unit 30 is configured to control the gas water heater 100 to send out the second warning information when the operation duration is within a range defined by the warning threshold and an upper limit of the preset range.
So, when the operating duration lies in the warning threshold value and the condition of the scope of predetermineeing the upper limit of scope and injecing, control gas heater 100 and send out second alarm information, make gas heater 100 in time send out second alarm information before being close probably to appear because each component during operation grow up and the consumption is big and damage gas heater 100's problem to make the user can in time learn gas heater 100's running state, so that in time make and handle.
It should be noted that, when the operation duration is within the preset range and is close to the upper limit of the preset range, it is indicated that the operation duration is longer at this time, the power consumption of the internal components in the gas water heater 100 is larger at this time, the operation performance of the internal components is reduced, if the combustion water heater 100 continues to control the output value of the valve body to operate at a smaller value, a situation that the gas water heater 100 is damaged due to the fact that the operation duration of the gas water heater is too long may occur, at this time, the internal components of the gas water heater 100 are prevented from being overheated by adjusting the output value of the valve body 10, and meanwhile, the user may know the operation state of the gas water heater 100 in time by controlling the gas water heater 100 to send out the second alarm information, so that the user can process in time.
In one embodiment, the preset range is divided into a plurality of sub-ranges of [0,30 ], [30,60 ], [60,1200 ], [1200,1800 ], [1800,2400 ], [2400,3000], wherein the alarm threshold is 2400 seconds. When the operation duration is within the range defined by 2400 seconds and 3000 seconds, the output value of the valve body 10 can be adjusted to 90%, and the gas water heater 100 is controlled to send out second alarm information.
It should be noted that, the first alarm information and the second alarm information include, but are not limited to, sound, light, vibration, and the like. For example, the combustion water heater 100 includes a buzzer, and the control unit 30 is configured to control the buzzer to emit a "beep" sound alarm, and for example, the gas water heater 100 includes an indicator light, and the control unit 30 is configured to control the indicator light to flash to emit a light alarm.
Specifically, in this embodiment, the first alarm information and the second alarm information are different, so that the user can conveniently identify the specific state of the gas water heater. The first alarm information can be faster and stronger than the second alarm information in alarm frequency. For example, in one example, the second warning message is a beep sound every 10 seconds, the sound intensity is 70 decibels, the indicator light flashes every 10 seconds, and a yellow light warning is emitted. The first alarm information is a sound alarm which emits 'beep' once every 2 seconds, the sound intensity is 100 decibels, the indicator light flashes once every 2 seconds, and a red light alarm is emitted.
Referring to fig. 7, in some embodiments, step S20 includes:
step S22, determining parameter values according to the running time length;
step S24, judging whether the parameter value is in the preset parameter range;
in the case where the parameter value is within the preset parameter value range, step S26, it is determined that the operation duration is within the preset range.
The control method of the above embodiment can be realized by the gas water heater 100 of the present embodiment. The steps S22, S24 and S26 can be implemented by the control unit 30 of the present embodiment. The control unit 30 is configured to determine a parameter value according to the operation duration, determine whether the parameter value is within a preset parameter value range, and determine that the operation duration is within the preset range when the parameter value is within the preset parameter value range, so that it can be accurately and quickly determined that the operation duration is within the preset range.
Specifically, the preset range includes a plurality of sub-ranges, the number of the parameter values is multiple, each parameter value corresponds to one sub-range, and the control method includes: and determining the parameter value according to the sub-range of the operation time length.
The above embodiment can be realized by the control unit 30 of the embodiment of the present invention. The control unit 30 is arranged to determine the parameter value in dependence on the sub-range in which the length of operation time is located.
Referring to fig. 8 and 9, in fig. 8, the ordinate represents a parameter value H, the abscissa represents an operation duration t, a parameter value corresponding to the sub-range [ tn, tn +1) corresponding to the operation duration is Hn, a parameter value corresponding to the sub-range [ tn-1, tn) corresponding to the operation duration is Hn-1, and so on, a parameter value corresponding to the sub-range [ t2, t1) corresponding to the operation duration is H1, and a parameter value corresponding to the sub-range [ t0, t1) corresponding to the operation duration is H0. The preset force value corresponding to the parameter value Hn is Pn, the preset force value corresponding to the parameter value Hn-1 is Pn-1, and so on, the preset force value corresponding to the parameter value H1 is P1, and the preset force value corresponding to the parameter value H0 is P0. In one of the preset ranges, the smaller the sub-range of the operation duration is, the smaller the corresponding parameter value is, and the larger the preset output value corresponding to the parameter value is. In another range of the preset range, the larger the sub-range of the operation duration is, the larger the corresponding parameter value is, and the larger the preset output value corresponding to the parameter value is. It should be noted that the division of the multiple sub-ranges, the corresponding parameter values, and the preset force output values corresponding to the parameter values can be set according to specific situations, which are described above only as examples, and the embodiments of the present invention are not limited specifically.
It should be noted that, in the embodiment of the present invention, the preset output value can be understood as a value on a preset relation line related to the hot water production rate of the gas water heater 100 (see fig. 9). In the case of the subrange [ tn, tn +1), the corresponding parameter value is Hn, and Hn corresponds to the preset force value Pn. The control unit 30 controls the operation of the output value of the valve body 10 according to the preset relation (with reference to fig. 9), and the larger the hot water production rate C is, the larger the value corresponding to the output value of the valve body 10 is. In the present embodiment, each sub-range corresponds to one parameter value, and each parameter value corresponds to the force output value of one valve body. The corresponding relation between the running time and the output value of the valve body is established by introducing parameter values, so that the programming habit is better met, the calculation of an algorithm can be reduced, and the efficiency is high. In the example shown in fig. 9, the preset relationship lines P0, P1, …, Pn may be parallel to each other. In other examples, the preset relationship lines P0, P1, …, Pn may also be partially parallel and partially non-parallel, or none.
It will be appreciated that in other embodiments, the preset force values may also be values from a table.
Referring to fig. 7, in some embodiments, the control method includes:
step S80, judging whether the parameter value is larger than the upper limit of the preset parameter value range;
and in the case that the parameter value is larger than the upper limit of the preset parameter value range, step S90, controlling the gas water heater 100 to send out first alarm information and/or stop running.
The control method described above can be implemented by the gas water heater 100 of the present embodiment. Steps S80 and S90 may be implemented by the control unit 30. The control unit 30 is configured to determine whether the parameter value is greater than the upper limit of the preset parameter value range, and control the gas water heater 100 to send a first alarm message and/or stop operation when the parameter value is greater than the upper limit of the preset parameter value range.
Therefore, under the condition that the parameter value is larger than the upper limit of the preset parameter value range, the problems that the gas water heater 100 is high in exhaust gas emission due to insufficient combustion or the gas water heater is damaged due to overlarge heat productivity and the like can be avoided, and the gas water heater 100 is controlled to send alarm information under the condition that the parameter value is larger than the upper limit of the preset parameter value range, so that a user can be timely informed of the operation state of the gas water heater 100.
Specifically, in one embodiment, in the case that the parameter value is greater than the upper limit of the preset parameter value range, the gas water heater 100 is controlled to send out the first alarm message and stop running. In another embodiment, in the case that the parameter value is larger than the upper limit of the preset parameter value range, the gas water heater 100 is controlled to send out the first alarm message. In yet another embodiment, the gas water heater 100 is controlled to stop operation in the event that the parameter value is greater than the upper limit of the preset parameter value range.
Referring to fig. 10, the embodiment of the present invention further provides a gas water heater 100, the gas water heater 100 includes a valve body 10, a processor 110 and a memory 120, the processor 110 is connected to the valve body 10 and the memory 120, the memory 120 stores a control program of the gas water heater 100, and the control program of the gas water heater 100 is executed by the processor 110 to implement the control method of the gas water heater 100 according to any one of the above embodiments.
In the gas water heater 100 of the embodiment, the output value of the valve body 10 is adjusted according to the operation duration of the gas water heater 100, so that the operation of the gas water heater 100 is more suitable for the environment, more accurate control can be realized on the gas water heater 100, the problem of system control deviation of the gas water heater 100 is avoided or reduced, and the problems of incomplete combustion, vibration combustion, high exhaust gas emission and the like of the gas water heater 100 can be improved.
In one embodiment, the control program of the gas water heater 100 is executed by the processor 110 to implement the steps of:
step S10, acquiring the running time of the gas water heater 100;
step S20, judging whether the operation duration is in a preset range;
in the case that the operation duration is within the preset range, step S30, determining whether the output value of the valve body 10 is equal to the preset output value;
in the case that the output value of the valve body 10 is not equal to the preset output value, step S40, the output value of the valve body 10 is adjusted according to the preset output value.
The processor 110 may include a Microcontroller (MCU). The gas water heater 100 includes a duration acquisition unit 20, a water temperature sensor 41, and a water flow rate sensor 51. The water temperature sensor 41 may be used to detect the inlet water temperature and the outlet water temperature. The water flow rate sensor 51 may be used to detect the water flow rate of the gas water heater 100.
In the description herein, references to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example" or "some examples" or the like mean 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, schematic representations of the above terms 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.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
The logic and/or steps represented in the flowcharts or otherwise described herein, such as an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processing module-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection having one or more wires (control method), a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of embodiments of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits having suitable combinational logic gates, programmable gate arrays (RGAs), field programmable gate arrays (FRGAs), and the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a separate product, may also be stored in a computer-readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (15)
1. A control method of a gas water heater including a valve body, characterized by comprising:
acquiring the running time of the gas water heater;
judging whether the operation duration is in a preset range or not;
under the condition that the operation duration is within the preset range, judging whether the force output value of the valve body is equal to a preset force output value or not, wherein the preset force output value is related to the preset range;
and under the condition that the output value of the valve body is not equal to the preset output value, adjusting the output value of the valve body according to the preset output value.
2. The control method according to claim 1, characterized by comprising:
and under the condition that the output value of the valve body is equal to the preset output value, controlling the gas water heater to continuously operate according to the current output value of the valve body.
3. The control method according to claim 1, wherein the preset range includes a plurality of sub-ranges, the number of the preset force output values is plural, each of the preset force output values corresponds to one of the sub-ranges, and the control method includes:
and determining the corresponding preset force output value according to the sub-range of the operation duration.
4. The control method according to claim 1, characterized by comprising:
judging whether the operation time length is greater than the upper limit of the preset range or not;
and under the condition that the operation duration is longer than the upper limit of the preset range, controlling the gas water heater to send out first alarm information and/or stop operation.
5. The control method according to claim 1, wherein the preset range includes an alarm threshold value that is closer to an upper limit of the preset range than to a lower limit of the preset range, the control method including:
and under the condition that the operation time length is within the range limited by the alarm threshold value and the upper limit of the preset range, controlling the gas water heater to send out second alarm information.
6. The control method of claim 1, wherein determining whether the operating duration is within a preset range comprises:
determining a parameter value according to the operation duration;
judging whether the parameter value is in a preset parameter range or not;
and determining that the operation duration is within the preset range under the condition that the parameter value is within the preset parameter range.
7. The control method of claim 6, wherein the preset range includes a plurality of sub-ranges, the number of parameter values is plural, each of the parameter values corresponds to one of the sub-ranges, and determining the parameter value according to the operation duration includes:
and determining the corresponding parameter value according to the sub-range of the operation duration.
8. A gas water heater is characterized by comprising a valve body, a duration acquisition unit and a control unit, wherein the control unit is connected with the valve body and the duration acquisition unit, the duration acquisition unit is used for acquiring the operation duration of the gas water heater, the control unit is used for judging whether the operation duration is in a preset range or not, judging whether a force output value of the valve body is equal to a preset force output value or not under the condition that the operation duration is in the preset range, and adjusting the force output value of the valve body according to the preset force output value under the condition that the force output value of the valve body is not equal to the preset force output value, wherein the preset force output value is related to the preset range.
9. The gas water heater as claimed in claim 8, wherein the control unit is configured to control the gas water heater to continue to operate at the current output value of the valve body if the output value of the valve body is equal to the preset output value.
10. The gas water heater of claim 8, wherein the preset range includes a plurality of sub-ranges, the number of preset force output values is plural, each of the preset force output values corresponds to one of the sub-ranges, and the control unit is configured to determine the corresponding preset force output value according to the sub-range in which the operation duration is located.
11. The gas water heater as claimed in claim 8, wherein the control unit is configured to control the gas water heater to send out a first alarm message and/or stop operation if the operation duration is greater than an upper limit of the preset range.
12. The gas water heater of claim 8, wherein the preset range includes an alarm threshold, the alarm threshold is closer to an upper limit of the preset range than to a lower limit of the preset range, and the control unit is configured to control the gas water heater to issue a second alarm message if the operation duration is within a range defined by the alarm threshold and the upper limit of the preset range.
13. The gas water heater of claim 8, wherein the control unit is configured to determine a parameter value based on the operating duration, and to determine whether the parameter value is within a preset parameter range, and to determine that the operating duration is within the preset range if the parameter value is within the preset parameter range.
14. The gas water heater as claimed in claim 13, wherein said preset range includes a plurality of sub-ranges, the number of said parameter values is plural, each of said parameter values is in one-to-one correspondence with said sub-ranges, and said control unit is configured to determine the corresponding said parameter value according to said sub-range in which said operation duration is located.
15. A gas water heater, comprising a valve body, a processor and a memory, wherein the processor is connected with the valve body and the memory, the memory stores a control program of the gas water heater, and the control program of the gas water heater is executed by the processor to realize the control method of the gas water heater according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910271812.2A CN110131897B (en) | 2019-04-04 | 2019-04-04 | Control method of gas water heater and gas water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910271812.2A CN110131897B (en) | 2019-04-04 | 2019-04-04 | Control method of gas water heater and gas water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110131897A CN110131897A (en) | 2019-08-16 |
| CN110131897B true CN110131897B (en) | 2022-05-20 |
Family
ID=67569241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910271812.2A Active CN110131897B (en) | 2019-04-04 | 2019-04-04 | Control method of gas water heater and gas water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110131897B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004053051A (en) * | 2002-07-17 | 2004-02-19 | Noritz Corp | Gas combustion apparatus |
| CN105650885A (en) * | 2016-03-16 | 2016-06-08 | 广东万和新电气股份有限公司 | Intelligent temperature-raising gas-fired water heater and control method thereof |
| CN205481821U (en) * | 2016-03-16 | 2016-08-17 | 广东万和新电气股份有限公司 | Intelligence intensification gas heater |
| CN107144018A (en) * | 2017-05-18 | 2017-09-08 | 广东万家乐燃气具有限公司 | A kind of energy-saving gas water heater and control method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3291104B2 (en) * | 1993-12-28 | 2002-06-10 | 株式会社ガスター | Combustion device and combustion capacity updating operation method thereof |
| CN103375916B (en) * | 2012-04-13 | 2015-11-25 | 海尔集团公司 | Fuel control method for fuel water heater |
-
2019
- 2019-04-04 CN CN201910271812.2A patent/CN110131897B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004053051A (en) * | 2002-07-17 | 2004-02-19 | Noritz Corp | Gas combustion apparatus |
| CN105650885A (en) * | 2016-03-16 | 2016-06-08 | 广东万和新电气股份有限公司 | Intelligent temperature-raising gas-fired water heater and control method thereof |
| CN205481821U (en) * | 2016-03-16 | 2016-08-17 | 广东万和新电气股份有限公司 | Intelligence intensification gas heater |
| CN107144018A (en) * | 2017-05-18 | 2017-09-08 | 广东万家乐燃气具有限公司 | A kind of energy-saving gas water heater and control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110131897A (en) | 2019-08-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107436016B (en) | Air conditioner, method and system for detecting leakage of refrigerant in air conditioner and storage medium | |
| CN104494317B (en) | Apparatus and method for automatically adjusting heating time of thermo-sensitive printer | |
| CN110081612B (en) | Control method of gas water heater and gas water heater | |
| CN105317510A (en) | Method and system for detecting fault of rear oxygen sensor | |
| CN107178875B (en) | Air conditioner and control method and device of outdoor fan of air conditioner | |
| US6409090B1 (en) | Self-optimizing device for controlling a heating system | |
| CN111397125B (en) | Sterilization control method and device of air conditioner, storage medium and control equipment | |
| CN102869923B (en) | For controlling method and the device of the normal-pressure boiler with airtight combustion chamber | |
| CN110131901A (en) | The control method and gas heater of gas heater | |
| EP2875235A1 (en) | Diagnostics for a starter motor | |
| JP2001227790A (en) | Device for diagnosing fault of sensor of air conditioner | |
| CN110131897B (en) | Control method of gas water heater and gas water heater | |
| CN110108039B (en) | Control method of gas water heater and gas water heater | |
| CN111609560A (en) | Control method of gas water heater, gas water heater and computer readable storage medium | |
| CN104819786A (en) | Method for testing temperature sensor in frequency conversion module in air conditioner, and device thereof | |
| US10437219B2 (en) | Method of managing energy consumption | |
| CN110108040A (en) | The control method and gas heater of gas heater | |
| KR100789280B1 (en) | Measuring device of operating period of heater with analyzing lord current | |
| JP6053614B2 (en) | Indoor ventilation system and control method thereof | |
| CN110332717A (en) | A kind of method for controlling combustion of water heater, device, water heater and storage medium | |
| CN110384395B (en) | Pressure cooking appliance and method and device for detecting abnormality of exhaust valve of pressure cooking appliance | |
| CN110131899A (en) | The control method and gas heater of gas heater | |
| CN110081608A (en) | The control method and gas heater of gas heater | |
| CN109237537B (en) | Dry burning prevention control method and dry burning prevention system | |
| CN110081609A (en) | The control method and gas heater of gas heater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |