CN113432308A - Gas water heater and control method and control device thereof - Google Patents
Gas water heater and control method and control device thereof Download PDFInfo
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- CN113432308A CN113432308A CN202110870958.6A CN202110870958A CN113432308A CN 113432308 A CN113432308 A CN 113432308A CN 202110870958 A CN202110870958 A CN 202110870958A CN 113432308 A CN113432308 A CN 113432308A
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- light intensity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
Abstract
The invention relates to a gas water heater and a control method and a control device thereof. The gas water heater comprises a light detector, a fan and a controller. The light detector is used for collecting the light intensity of flame of the gas water heater during combustion under the condition that the gas water heater operates. The controller is respectively with light detector and fan electric connection, and the controller is used for judging whether light intensity is located the scope of predetermineeing to and be used for when light intensity is not located the scope of predetermineeing, adjust the rotational speed of fan according to light intensity. According to the comparison of the light intensity of the flame of the gas water heater during combustion with the preset range, different combustion states of the flame can be known, and when the light intensity is different from the preset range, the rotating speed of the fan is adjusted to enable the light intensity of the flame generated by the fan to be consistent with the preset range, so that the gas water heater is always in the best combustion state, and the problems of incomplete combustion, vibration combustion, high waste gas emission and the like of the gas water heater are solved.
Description
Technical Field
The invention relates to the technical field of water heaters, in particular to a gas water heater and a control method and a control device thereof.
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 a gas water heater with a fan, when the gas water heater operates in an environment with normal oxygen concentration content, the rotating speed of the fan is generally controlled to provide corresponding air volume so as to maintain the gas water heater to execute combustion operation under a good condition; when the gas water heater operates in an environment with low oxygen concentration content, incomplete combustion of gas is avoided by detecting the oxygen concentration content in the environment and controlling and adjusting the rotating speed of a fan of the gas water heater according to the detected oxygen concentration content in the environment. However, the gas water heater still has the defect of incomplete combustion in the operation process, and when the gas water heater is incompletely combusted, the exhaust emission is high, the environment is polluted, and in addition, the combustion vibration phenomenon can occur.
Disclosure of Invention
The first technical problem to be solved by the present invention is to provide a gas water heater, which can effectively and fully burn gas, avoid the generation of waste gas to pollute the environment, and avoid the combustion vibration phenomenon.
The second technical problem to be solved by the present invention is to provide a control method for a gas water heater, which can effectively and fully combust gas, avoid the generation of waste gas to pollute the environment, and avoid the combustion vibration phenomenon.
The third technical problem to be solved by the present invention is to provide a control device for a gas water heater, which can effectively and fully combust gas, avoid the generation of waste gas to pollute the environment, and avoid the combustion vibration phenomenon.
The first technical problem is solved by the following technical scheme:
a gas water heater, comprising:
the light detector is used for acquiring the light intensity of flame of the gas water heater during combustion under the condition that the gas water heater is operated;
fan and controller, the controller respectively with light detector with fan electric connection, the controller is used for judging whether light intensity is located predetermineeing the scope, and be used for light intensity is not located when predetermineeing the scope, according to light intensity adjustment the rotational speed of fan.
Compared with the background technology, the gas water heater of the invention has the following beneficial effects:
according to the gas water heater, different combustion states of flame can be known according to comparison between the light intensity of the flame of the gas water heater during combustion and the preset range, and when the light intensity is different from the preset range, the light intensity of the flame generated by the gas water heater is consistent with the preset range by adjusting the rotating speed of the fan, so that the gas water heater is always in the best combustion state, and the problems of incomplete combustion, vibration combustion, high waste gas emission and the like of the gas water heater are solved.
In one embodiment, the controller is further configured to control the gas water heater to continue to operate at the current rotation speed of the fan when the light intensity is within the preset range; and/or the controller is also used for controlling the gas water heater to perform warning action when the light intensity is not within the preset range.
In one embodiment, the controller is further configured to collect light intensity during flame burning of the gas water heater after the step of adjusting the rotation speed of the fan according to the light intensity.
In one embodiment, the controller is further configured to obtain a current hot water yield of the gas water heater, and determine the preset range according to the current hot water yield.
In one embodiment, the gas water heater further comprises a first water temperature sensor, a second water temperature sensor and a water flow sensor; the first water temperature sensor is arranged on a cold water inlet pipe of the gas water heater, the second water temperature sensor is arranged on a hot water outlet pipe of the gas water heater, and the water flow sensor is arranged on the cold water inlet pipe or the hot water outlet pipe; the first water temperature sensor, the second water temperature sensor and the water flow sensor are respectively electrically connected with the controller; the controller is further used for obtaining the current hot water yield according to the cold water temperature sensed by the first water temperature sensor, the hot water temperature sensed by the second water temperature sensor and the water flow sensed by the water flow sensor.
The second technical problem is solved by the following technical solutions:
a control method of a gas water heater comprises the following steps:
acquiring the light intensity of flame of the gas water heater during combustion under the condition that the gas water heater is operated;
judging whether the light intensity is in a preset range or not;
and when the light intensity is not in the preset range, adjusting the rotating speed of the fan according to the light intensity.
Compared with the background technology, the control method of the gas water heater has the following beneficial effects:
according to the control method of the gas water heater, different combustion states of flame can be known according to the comparison of the light intensity of the flame of the gas water heater during combustion with the preset range, and when the light intensity is different from the preset range, the light intensity of the flame generated by the fan is enabled to be consistent with the preset range by adjusting the rotating speed of the fan, so that the gas water heater is enabled to be in the best combustion state all the time, and the problems of incomplete combustion, vibration combustion, high waste gas emission and the like of the gas water heater are solved.
In one embodiment, the control method of the gas water heater further comprises the following steps:
when the light intensity is within the preset range, controlling the gas water heater to continuously operate at the current rotating speed of the fan; and/or the presence of a gas in the gas,
and when the light intensity is not within the preset range, controlling the gas water heater to perform warning action.
In one embodiment, the step of adjusting the rotation speed of the fan according to the light intensity further comprises the following steps: and circularly entering the step of collecting the light intensity of the flame of the gas water heater during combustion.
In one embodiment, the method for obtaining the preset range includes the steps of:
obtaining the current hot water yield of the gas water heater;
and determining the preset range according to the current hot water yield.
In one embodiment, determining the preset range according to the current hot water production rate includes:
when the gas water heater operates in an ideal combustion state, acquiring the ideal light intensity of flame combustion of the gas water heater and acquiring the ideal hot water yield corresponding to the ideal light intensity;
obtaining a linear function relation according to the ideal light intensity and the ideal hot water yield;
and obtaining the preset range according to the relation between the current hot water yield and the linear function.
In one embodiment, the determining whether the light intensity is within a predetermined range includes:
when the gas water heater operates in an ideal combustion state, acquiring the ideal light intensity of flame combustion of the gas water heater and acquiring the ideal hot water yield corresponding to the ideal light intensity;
dividing the range of the ideal yield of the hot water into a plurality of first sub-ranges according to the range of the ideal yield of the hot water, dividing the range of the ideal intensity of the light into a plurality of second sub-ranges according to the range of the ideal intensity of the light, wherein the plurality of first sub-ranges correspond to the plurality of second sub-ranges one by one;
when the light intensity is in one of the first sub-ranges and the hot water production rate is in the second sub-range corresponding to the first sub-range, the light intensity is in a preset range.
The third technical problem is solved by the following technical scheme:
a control device of a gas water heater, the control device of the gas water heater comprising: the acquisition module is used for acquiring the light intensity of flame burning of the gas water heater under the condition that the gas water heater is operated;
the judging module is used for judging whether the light intensity is in a preset range or not;
and the speed regulating module is used for regulating the rotating speed of the fan according to the light intensity when the light intensity is not within the preset range.
Compared with the background technology, the control device of the gas water heater has the following beneficial effects:
according to the control device of the gas water heater, different combustion states of flame can be known according to comparison between the light intensity and the preset range when the flame of the gas water heater is combusted, and when the light intensity is different from the preset range, the light intensity of the flame generated by the control device is consistent with the preset range by adjusting the rotating speed of the fan, so that the gas water heater is always in the best combustion state, and the problems of incomplete combustion, vibration combustion, high waste gas emission and the like of the gas water heater are solved.
A gas water heater comprises a light detector, a fan and a controller, wherein the controller is respectively electrically connected with the light detector and the fan; the controller comprises a memory storing a computer program and a processor implementing the steps of the method when executing the computer program.
Compared with the background technology, the gas water heater of the invention has the following beneficial effects:
according to the gas water heater, different combustion states of flame can be known according to comparison between the light intensity of the flame of the gas water heater during combustion and the preset range, and when the light intensity is different from the preset range, the light intensity of the flame generated by the gas water heater is consistent with the preset range by adjusting the rotating speed of the fan, so that the gas water heater is always in the best combustion state, and the problems of incomplete combustion, vibration combustion, high waste gas emission and the like of the gas water heater are solved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a gas water heater according to an embodiment of the present invention;
FIG. 2 is a flow chart of a control method of a gas water heater according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart of a control method of a gas water heater according to an embodiment of the present invention;
FIG. 4 is a schematic flow chart illustrating the adjustment of the fan speed in the control method of the gas water heater according to the embodiment of the invention;
FIG. 5 is a schematic flow chart illustrating the adjustment of the fan speed in the control method of the gas water heater according to the embodiment of the present invention;
fig. 6 is a schematic diagram illustrating a relationship between a hot water yield X of the gas water heater and a light intensity Y of the gas flame according to an embodiment of the present invention.
Reference numerals:
10. a light detector; 20. a fan; 30. a controller; 40. a first water temperature sensor; 50. a second water temperature sensor; 60. a water flow sensor.
Detailed Description
To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Embodiments of the present application are set forth in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or be connected to the other element through intervening elements. Further, "connection" in the following embodiments is understood to mean "electrical connection", "communication connection", or the like, if there is a transfer of electrical signals or data between the connected objects.
As used herein, the singular forms "a", "an" and "the" may include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises/comprising," "includes" or "including," etc., specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof. Also, as used in this specification, the term "and/or" includes any and all combinations of the associated listed items.
As background art, the gas water heater in the prior art has the problem of incomplete combustion of gas, and the inventor researches and discovers that the problem is caused by low oxygen content in air on one hand and low gas pressure on the other hand, which causes a flame-out phenomenon, and in addition, under windy weather conditions, insufficient combustion is caused due to the increase of smoke resistance of a combustion system.
Based on the reasons, the invention provides a gas water heater, a control method, a control device and a storage medium scheme thereof, which can effectively enable gas to be fully combusted, can avoid the generation of waste gas to pollute the environment and avoid the combustion vibration phenomenon.
In one embodiment, as shown in fig. 1, fig. 1 illustrates a schematic structural diagram of a gas water heater according to an embodiment of the present invention, and provides a gas water heater, which includes: the light detector 10, the fan 20 and the controller 30. The light ray detector 10 is used for acquiring the light ray intensity of flame burning of the gas water heater under the condition that the gas water heater is operated. The controller 30 is electrically connected to the light detector 10 and the fan 20, respectively, and the controller 30 is configured to determine whether the light intensity is within a preset range, and adjust the rotation speed of the fan 20 according to the light intensity when the light intensity is not within the preset range.
According to the gas water heater, different combustion states of flame can be known according to comparison between the light intensity of the flame of the gas water heater during combustion and the preset range, and when the light intensity is different from the preset range, the light intensity of the flame generated by the fan 20 is enabled to be consistent with the preset range by adjusting the rotating speed of the fan, so that the gas water heater is always in the best combustion state, and the problems of incomplete combustion, vibration combustion, high waste gas emission and the like of the gas water heater are solved.
It should be noted that the intensity of the light collected by the light detector 10 includes, but is not limited to, being characterized by a voltage value, a current value or an inductance value. The following description will be given taking the case where the intensity of light is represented by a voltage value, and when the voltage value is larger, it indicates that the intensity of light is larger; conversely, a smaller voltage value indicates a smaller intensity of light.
It should be noted that, in one example, the blower 20 of the gas water heater may be a blower 20, and the blower 20 may supply air for the gas water heater so as to supply air required for combustion of the gas water heater. In another example, the fan 20 of the gas water heater may be an exhaust fan 20, and the exhaust fan 20 may be used to exhaust the waste gas generated by the combustion of the gas water heater, increase the air flow of the gas water heater, meet the air requirement for the combustion of the gas water heater, and timely exhaust the waste gas generated by the combustion of the gas water heater. Of course, in other embodiments, the blower 20 of the gas water heater may include a blower fan 20 and an exhaust fan 20, and the blower fan 20 and the exhaust fan 20 work in combination to further improve the reliability of the gas water heater.
When the power load of the gas water heater is large, the gas flow rate of the gas water heater is large, and at this time, a large amount of air and gas are required to be sufficiently combusted, so that the rotation speed of the fan 20 needs to be increased. In other words, when the rotation speed of the fan 20 is increased, more air can be introduced into the gas water heater, so that the gas water heater can be more fully combusted. And then the larger the gas heat that the gas heater produced is also, thereby make the temperature difference of the temperature of intaking of gas heater and the play water temperature of gas heater bigger.
It should be noted that 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 detected by the water flow rate sensor.
In one embodiment, the controller 30 is further configured to control the gas water heater to continue to operate at the current rotation speed of the fan 20 when the light intensity is within the preset range.
Specifically, the light detector 10 is, for example, an ultraviolet detector, an infrared detector, a light intensity detector, or the like, and is not limited herein, and may be set according to actual requirements as long as the intensity of the flame can be reflected.
Further, the controller 30 is also configured to control the gas water heater to perform an alarm action when the light intensity is not within the preset range. Specifically, the gas water heater further includes an alarm, and the controller 30 is electrically connected to the alarm. Examples of the warning device include, but are not limited to, a light alarm, a speaker, a vibrator, a display, and the like. So, when light intensity was not located and predetermines the scope, it is in incomplete combustion state to show the gas, in time warns the action through the alarm, can remind the user of service in time, and the user of service can grasp gas heater's operating condition betterly.
In one embodiment, the controller 30 is further configured to collect the light intensity of the gas water heater during flame burning after the step of adjusting the rotation speed of the fan 20 according to the light intensity.
In one embodiment, the controller 30 is further configured to obtain a current hot water production rate of the gas water heater, and determine the preset range according to the current hot water production rate.
Referring to fig. 1, in one embodiment, the gas water heater further includes a first water temperature sensor 40, a second water temperature sensor 50 and a water flow sensor 60. The first water temperature sensor 40 is arranged on a cold water inlet pipe of the gas water heater, the second water temperature sensor 50 is arranged on a hot water outlet pipe of the gas water heater, and the water flow sensor 60 is arranged on the cold water inlet pipe or the hot water outlet pipe. The first water temperature sensor 40, the second water temperature sensor 50 and the water flow sensor 60 are electrically connected to the controller 30, respectively. The controller 30 is further configured to obtain a current hot water production rate according to the cold water temperature sensed by the first water temperature sensor 40, the hot water temperature sensed by the second water temperature sensor 50, and the water flow rate sensed by the water flow rate sensor 60.
Referring to fig. 2, in an embodiment, a method for controlling a gas water heater includes the following steps:
s100, acquiring the light intensity of flame of the gas water heater during combustion under the condition that the gas water heater is operated;
s200, judging whether the light intensity is in a preset range;
and step S300, when the light intensity is not within the preset range, adjusting the rotating speed of the fan 20 according to the light intensity.
According to the control method of the gas water heater, different combustion states of flame can be known according to the comparison of the light intensity of the flame of the gas water heater during combustion with the preset range, and when the light intensity is different from the preset range, the light intensity of the flame generated by the fan 20 is enabled to be consistent with the preset range by adjusting the rotating speed of the fan, so that the gas water heater is enabled to be in the optimal combustion state all the time, and the problems of incomplete combustion, vibration combustion, high waste gas emission and the like of the gas water heater are solved.
Referring to fig. 2, further, the control method of the gas water heater further includes: and S400, controlling the gas water heater to continuously operate at the current rotating speed of the fan 20 when the light intensity is within the preset range. Therefore, when the light intensity is within the preset range, the gas is in a complete combustion state, and the gas water heater is controlled to continue to operate at the current rotating speed of the fan 20.
Referring to fig. 3, in an embodiment, the step of adjusting the rotation speed of the fan 20 according to the light intensity further includes the following steps: step S100 is entered, namely, the light intensity of the flame of the gas water heater is collected during the combustion. It is thus possible to determine whether the light intensity meets the requirements after the step of adjusting the rotation speed of the fan 20.
In general, the reason why the intensity of light detected by the light detector 10 is shifted from the preset value is that the amount of air introduced into the combustion chamber is insufficient, resulting in insufficient combustion of gas.
Referring to fig. 4, further, the step S300 specifically includes:
step S310, judging whether the rotating speed of the fan 20 is adjusted for the first time; when the rotation speed of the fan 20 is adjusted for the first time, the step proceeds to step S360, and when the rotation speed of the fan 20 is not adjusted for the first time, the step proceeds to step S330;
it should be noted that, when the first adjustment of the rotation speed of the fan 20 indicates that the gas water heater has a situation of incomplete combustion of gas, and after the controller 30 determines that the gas of the gas water heater is in an incomplete combustion state, the controller 30 determines whether to adjust the rotation speed of the fan 20 for the first time to enable the gas to be in a sufficient combustion state. After the controller 30 adjusts the rotation speed of the fan 20 for many times to make the gas in the full combustion state, the gas water heater enters the normal working state. Similarly, when the gas water heater enters the situation of incomplete combustion of the gas next time, after the controller 30 determines that the gas of the gas water heater is in the incomplete combustion state, the controller 30 also needs to determine whether to adjust the rotation speed of the fan 20 for the first time.
Step S360, gradually increasing the rotating speed of the fan 20;
in step S360, the rotation speed of the fan 20 is gradually increased, and after the rotation speed of the fan 20 is increased, the amount of air entering the combustion chamber can be increased.
After step 360, the process proceeds to step S100.
Specifically, the increase mode of the rotation speed of the fan 20 is, for example, 5r/min to 30r/min, specifically, for example, 10r/min, 15r/min, 20r/min, or 25r/min, and the like, and is not limited herein.
S330, judging whether the light intensity is close to a preset range; when the judgment result is that the range is close to the preset range, the step S360 is entered; when the judgment result is not close to the preset range, the step S380 is entered;
in step S330, determining whether the light intensity is close to the preset range means that the detected light intensity after the rotation speed of the fan 20 is adjusted is compared with the detected light intensity before the rotation speed of the fan 20 is adjusted, and if the detected light intensity after the rotation speed of the fan 20 is adjusted is closer to the preset range, it is determined that the light intensity is close to the preset range; otherwise, it is determined that the rotation speed of the fan 20 does not approach the preset range, which indicates that there is a possibility that the directionality of the rotation speed of the fan 20 is adjusted to be wrong, specifically, for example, when the gas water heater is in a working state of off-flame combustion, the rotation speed of the fan 20 is too high, which causes incomplete combustion of the gas, and the rotation speed of the fan 20 is reduced in an adjustment manner, but the rotation speed of the fan 20 is gradually increased in a manner of adjusting the rotation speed of the fan 20 for the first time, which inevitably causes insufficient combustion of the gas after increasing the rotation speed of the fan 20, so that the detected light intensity is smaller. Therefore, whether the adjustment directionality of the rotating speed of the air outlet machine 20 is correct or not can be judged in time through the step, so that the rotating speed of the air outlet machine 20 can be adjusted to be in place quickly, and finally, the fuel gas can be fully combusted.
Step S380, gradually reducing the rotating speed of the fan 20;
in step S380, the rotation speed of the fan 20 is gradually reduced, and after the rotation speed of the fan 20 is reduced, the amount of air entering the combustion chamber can be reduced.
After step 380, the process proceeds to step S100.
Similar to the increasing manner of the rotation speed of the fan 20, specifically, the decreasing manner of the rotation speed of the fan 20 is, for example, 5r/min to 30r/min, specifically, for example, 10r/min, 15r/min, 20r/min, or 25r/min, and the like, and is not limited herein.
Referring to fig. 5, further, the control method of the gas water heater further includes: and S500, controlling the gas water heater to perform warning action when the light intensity is not within the preset range. Therefore, the warning action can prompt the user in time and better master whether the gas water heater is in a fully burning state. Specifically, step S500 is located between step S310 and step S330, that is, when it is determined in step S310 that the rotation speed of the fan 20 is not adjusted for the first time, the process proceeds to step S500, and after step S500 is operated, the process proceeds to step S330.
In one embodiment, the method for obtaining the preset range includes the steps of:
obtaining the current hot water yield of the gas water heater;
and determining a preset range according to the current hot water yield.
It should be noted that 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 detected by the water flow sensor 60.
Generally, in a good combustion state of a flame, the light intensity is positively correlated with the heat load of a gas water heater, and the hot water yield directly reflects the heat load, namely, the hot water yield and the light intensity are in a linear function relationship. Therefore, a preset range can be obtained according to the current hot water yield, and the preset range is used as the reference of light intensity and is used for judging whether the flame of the gas water heater is well combusted.
Referring to fig. 6, fig. 6 is a schematic diagram illustrating a relationship between a hot water yield X of a gas water heater and a light intensity Y of a gas flame according to an embodiment of the invention. In one embodiment, determining the preset range according to the current hot water production rate includes:
when the gas water heater operates in an ideal combustion state, acquiring the ideal light intensity of flame combustion of the gas water heater and acquiring the ideal hot water yield corresponding to the ideal light intensity;
obtaining a linear function relation according to the ideal intensity of the light and the ideal yield of the hot water;
and obtaining a preset range according to the relation between the current hot water yield and the linear function.
It should be noted that the preset range may be a point value obtained according to the linear function relationship of the current hot water yield, or an error range may be set on the basis of the point value. Then, the light intensity can be considered to be equal to the point value under the condition that the light intensity has an error with the point value, and the size of the error range can be set according to specific conditions (such as design requirements, sensitivity and the like).
Referring to fig. 6, in another embodiment, the determining whether the light intensity is within the predetermined range includes:
when the gas water heater operates in an ideal combustion state, acquiring the ideal light intensity of flame combustion of the gas water heater and acquiring the ideal hot water yield corresponding to the ideal light intensity;
dividing the range of the ideal yield of the hot water into a plurality of first sub-ranges, dividing the range of the ideal intensity of the light into a plurality of second sub-ranges, and enabling the plurality of first sub-ranges to be in one-to-one correspondence with the plurality of second sub-ranges;
specifically, as shown in fig. 6, the X-axis of the ideal yield of hot water is divided into n segments: x1、X2、X3......Xn-1And XnThe first sub-range is, for example, (X)1，X2]、(X2，X3]、......(Xn-1，Xn]. Dividing the ideal light intensity Y axis into n segments: y is1、Y2、Y3......Yn-1And YnThe first sub-range is, for example, (Y)1，Y2]、(Y2，Y3]、......(Yn-1，Yn]。
When the light intensity is in one of the first sub-ranges and the hot water production rate is in a second sub-range corresponding to the first sub-range, the light intensity is in the preset range.
Specifically, after the gas water heater normally operates, the water temperature and water flow information is collected, the current hot water yield value is calculated, and it is determined in which hot water yield interval the current water heater yield value falls, for example, the water heater yield value falls in the interval (Y)1，Y2]Then, by collecting the light intensity, judging whether the current light intensity is in (X)1，X2]If so, the water heater is executed according to the normal regulating program of the user; if not, the gas water heater gives out an alarm, and the light is strong by adjusting the rotating speed of the fan 20Degree lies in (X)1，X2]In (1).
It should be understood that although the various steps in the flowcharts of fig. 2-5 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 2-5 may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed in turn or alternately with other steps or at least some of the other steps or stages.
In one embodiment, a control device of a gas water heater includes: the acquisition module is used for acquiring the light intensity of flame burning of the gas water heater under the condition that the gas water heater operates;
the judging module is used for judging whether the light intensity is in a preset range or not;
and the speed regulating module is used for regulating the rotating speed of the fan 20 according to the light intensity when the light intensity is not within the preset range.
According to the control device of the gas water heater, different combustion states of flame can be known according to comparison between the light intensity and the preset range when the flame of the gas water heater is combusted, and when the light intensity is different from the preset range, the light intensity of the flame generated by the control device is consistent with the preset range by adjusting the rotating speed of the fan 20, so that the gas water heater is always in the optimal combustion state, and the problems of incomplete combustion, vibration combustion, high waste gas emission and the like of the gas water heater are solved.
For specific limitations of the control device of the gas water heater, reference may be made to the above limitations of the control method of the gas water heater, which are not described herein again. The modules in the control device of the gas water heater can be wholly or partially realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules. It should be noted that, in the embodiment of the present application, the division of the module is schematic, and is only one logic function division, and there may be another division manner in actual implementation.
In one embodiment, the gas water heater comprises a light detector 10, a fan 20 and a controller 30, wherein the controller 30 is electrically connected with the light detector 10 and the fan 20 respectively; the controller 30 comprises a memory storing a computer program and a processor implementing the following steps when executing the computer program:
s100, acquiring the light intensity of flame of the gas water heater during combustion under the condition that the gas water heater is operated;
s200, judging whether the light intensity is in a preset range;
and step S300, when the light intensity is not within the preset range, adjusting the rotating speed of the fan 20 according to the light intensity.
According to the gas water heater, different combustion states of flame can be known according to comparison between the light intensity of the flame of the gas water heater during combustion and the preset range, and when the light intensity is different from the preset range, the light intensity of the flame generated by the fan 20 is enabled to be consistent with the preset range by adjusting the rotating speed of the fan, so that the gas water heater is always in the best combustion state, and the problems of incomplete combustion, vibration combustion, high waste gas emission and the like of the gas water heater are solved.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
and S400, controlling the gas water heater to continuously operate at the current rotating speed of the fan 20 when the light intensity is within the preset range. In one embodiment, the processor, when executing the computer program, further performs the steps of:
step S310, judging whether the rotating speed of the fan 20 is adjusted for the first time; when the rotation speed of the fan 20 is adjusted for the first time, the step proceeds to step S360, and when the rotation speed of the fan 20 is not adjusted for the first time, the step proceeds to step S330;
step S360, gradually increasing the rotating speed of the fan 20;
s330, judging whether the light intensity is close to a preset range; when the judgment result is that the range is close to the preset range, the step S360 is entered; when the judgment result is not close to the preset range, the step S380 is entered;
step S380, gradually reducing the rotating speed of the fan 20;
and S500, controlling the gas water heater to perform warning action when the light intensity is not within the preset range.
In one embodiment, a computer readable storage medium having a computer program stored thereon, the computer program when executed by a processor implementing the steps of:
s100, acquiring the light intensity of flame of the gas water heater during combustion under the condition that the gas water heater is operated;
s200, judging whether the light intensity is in a preset range;
and step S300, when the light intensity is not within the preset range, adjusting the rotating speed of the fan 20 according to the light intensity.
According to the computer readable storage medium, different combustion states of flame can be known according to comparison of the light intensity of the flame of the gas water heater during combustion with the preset range, and when the light intensity is different from the preset range, the light intensity of the flame generated by the fan 20 is made to be consistent with the preset range by adjusting the rotating speed of the fan, so that the gas water heater is always in the optimal combustion state, and the problems of incomplete combustion, vibration combustion, high waste gas emission and the like of the gas water heater are solved.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware related to instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, the computer program can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database or other medium used in the embodiments provided herein can include at least one of non-volatile and volatile memory. Non-volatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical storage, or the like. Volatile Memory can include Random Access Memory (RAM) or external cache Memory. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others.
In the description herein, references to the description of "some embodiments," "other embodiments," "desired embodiments," etc., 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, a schematic description of the above terminology may not necessarily refer to the same embodiment or example.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (13)
1. A gas water heater, comprising:
the light ray detector (10), the light ray detector (10) is used for collecting the light ray intensity of the flame of the gas water heater when the gas water heater is operated;
fan (20) and controller (30), controller (30) respectively with light detector (10) with fan (20) electric connection, controller (30) are used for judging whether light intensity is located predetermineeing the scope, and are used for when light intensity is not located predetermineeing the scope, according to light intensity adjustment the rotational speed of fan (20).
2. The gas water heater of claim 1, wherein the controller (30) is further configured to control the gas water heater to continue to operate at the current rotation speed of the fan (20) when the light intensity is within the preset range; and/or the controller (30) is also used for controlling the gas water heater to perform warning action when the light intensity is not within the preset range.
3. The gas water heater according to claim 1, characterized in that said controller (30) is also adapted to acquire the light intensity of the gas water heater during the flame burning after the step of adjusting the rotation speed of said fan (20) according to said light intensity.
4. The gas water heater of claim 1, wherein the controller (30) is further configured to obtain a current hot water production rate of the gas water heater, and to determine the preset range based on the current hot water production rate.
5. The gas water heater of claim 4, further comprising a first water temperature sensor (40), a second water temperature sensor (50), and a water flow sensor (60); the first water temperature sensor (40) is arranged on a cold water inlet pipe of the gas water heater, the second water temperature sensor (50) is arranged on a hot water outlet pipe of the gas water heater, and the water flow sensor (60) is arranged on the cold water inlet pipe or the hot water outlet pipe; the first water temperature sensor (40), the second water temperature sensor (50) and the water flow sensor (60) are respectively electrically connected with the controller (30); the controller (30) is further configured to obtain the current hot water yield according to the cold water temperature sensed by the first water temperature sensor (40), the hot water temperature sensed by the second water temperature sensor (50), and the water flow rate sensed by the water flow rate sensor (60).
6. A control method of a gas water heater is characterized by comprising the following steps:
acquiring the light intensity of flame of the gas water heater during combustion under the condition that the gas water heater is operated;
judging whether the light intensity is in a preset range or not;
and when the light intensity is not in the preset range, adjusting the rotating speed of the fan (20) according to the light intensity.
7. The control method of the gas water heater as claimed in claim 6, further comprising the steps of:
when the light intensity is within the preset range, controlling the gas water heater to continuously operate at the current rotating speed of the fan (20); and/or the presence of a gas in the gas,
and when the light intensity is not within the preset range, controlling the gas water heater to perform warning action.
8. The control method of a gas water heater according to claim 6, characterized in that the step of adjusting the rotation speed of the fan (20) according to the intensity of the light further comprises the following steps: and circularly entering the step of collecting the light intensity of the flame of the gas water heater during combustion.
9. The control method of a gas water heater according to claim 6, wherein the obtaining of the preset range comprises the steps of:
obtaining the current hot water yield of the gas water heater;
and determining the preset range according to the current hot water yield.
10. The method of claim 9, wherein determining the preset range based on the current hot water production rate comprises:
when the gas water heater operates in an ideal combustion state, acquiring the ideal light intensity of flame combustion of the gas water heater and acquiring the ideal hot water yield corresponding to the ideal light intensity;
obtaining a linear function relation according to the ideal light intensity and the ideal hot water yield;
and obtaining the preset range according to the relation between the current hot water yield and the linear function.
11. The control method of the gas water heater according to claim 6, wherein the judging whether the light intensity is within a preset range comprises:
when the gas water heater operates in an ideal combustion state, acquiring the ideal light intensity of flame combustion of the gas water heater and acquiring the ideal hot water yield corresponding to the ideal light intensity;
dividing the range of the ideal yield of the hot water into a plurality of first sub-ranges according to the range of the ideal yield of the hot water, dividing the range of the ideal intensity of the light into a plurality of second sub-ranges according to the range of the ideal intensity of the light, wherein the plurality of first sub-ranges correspond to the plurality of second sub-ranges one by one;
when the light intensity is in one of the first sub-ranges and the hot water production rate is in the second sub-range corresponding to the first sub-range, the light intensity is in a preset range.
12. A control device for a gas water heater, comprising: the acquisition module is used for acquiring the light intensity of flame burning of the gas water heater under the condition that the gas water heater is operated;
the judging module is used for judging whether the light intensity is in a preset range or not;
and the speed regulating module is used for regulating the rotating speed of the fan (20) according to the light intensity when the light intensity is not within the preset range.
13. The gas water heater is characterized by comprising a light detector (10), a fan (20) and a controller (30), wherein the controller (30) is respectively and electrically connected with the light detector (10) and the fan (20); the controller (30) comprises a memory storing a computer program and a processor implementing the steps of the method according to any of claims 6 to 11 when executing the computer program.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110870958.6A CN113432308A (en) | 2021-07-30 | 2021-07-30 | Gas water heater and control method and control device thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110870958.6A CN113432308A (en) | 2021-07-30 | 2021-07-30 | Gas water heater and control method and control device thereof |
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| CN113432308A true CN113432308A (en) | 2021-09-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114151979A (en) * | 2021-11-29 | 2022-03-08 | 广东万和新电气股份有限公司 | Control method and device of gas water heater, control equipment and gas water heater |
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