CN114777337B - Gas water heater and control method thereof - Google Patents
Gas water heater and control method thereof Download PDFInfo
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- CN114777337B CN114777337B CN202210452487.1A CN202210452487A CN114777337B CN 114777337 B CN114777337 B CN 114777337B CN 202210452487 A CN202210452487 A CN 202210452487A CN 114777337 B CN114777337 B CN 114777337B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 167
- 238000000034 method Methods 0.000 title claims abstract description 35
- 239000000779 smoke Substances 0.000 claims abstract description 51
- 238000010248 power generation Methods 0.000 claims abstract description 5
- 230000001133 acceleration Effects 0.000 claims description 27
- 238000004140 cleaning Methods 0.000 claims description 9
- 238000004590 computer program Methods 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 6
- 238000002485 combustion reaction Methods 0.000 abstract description 14
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 133
- 230000000694 effects Effects 0.000 description 16
- 241000208125 Nicotiana Species 0.000 description 8
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004200 deflagration Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
The application relates to a gas water heater and a control method thereof. The control method of the gas water heater comprises the following steps: acquiring the wind power condition and the snowfall condition of the setting position of the gas water heater; determining a corresponding snow removing interval according to the snowfall condition, and determining a corresponding snow removing rotating speed according to the wind power condition; the snow removing device comprises a snow removing device, a wind power generation device, a snow removing device and a snow removing device, wherein the snow removing device is used for removing snow from the snow, the snow is reflected by the snow falling condition, the corresponding snow removing interval is smaller, and the corresponding snow removing rotating speed is larger as the wind power reflected by the wind power condition is larger; under the condition that the gas water heater does not work, controlling a fan of the gas water heater to operate at the snow removing rotating speed at intervals of snow removing. The control method ensures that the smoke tube is kept smooth when the gas water heater needs to be started, so that the gas water heater is not easily affected by wind and snow, and the risk is avoided in advance, thereby solving the problems of incomplete combustion, vibration combustion, high exhaust emission and the like of the gas water heater caused by accumulated snow blocking the smoke tube.
Description
Technical Field
The application relates to the technical field of gas water heaters, in particular to a gas water heater and a control method thereof.
Background
The gas water heater takes gas as fuel, and transfers heat to cold water in the heat exchanger in a combustion heating mode, and heat exchange with the cold water is realized in the heat exchanger, so that the purpose of preparing hot water is achieved. The gas water heater has been developed for many years, has the advantages of convenient installation, good use safety and the like, and is widely applied to the scenes such as bathrooms, kitchens and the like needing hot water.
The gas water heater in the traditional technology is easy to cause the blockage of the smoke tube when encountering snowfall, thereby causing the adverse phenomena of incapability of ignition, deflagration and the like of the gas water heater and affecting the normal use of the gas water heater.
Disclosure of Invention
The first technical problem to be solved by the invention is to provide a control method of a gas water heater, which can effectively influence snowfall on the gas water heater.
The second technical problem to be solved by the invention is to provide the gas water heater which can effectively influence snowfall on the gas water heater.
The first technical problem is solved by the following technical scheme:
a control method of a gas water heater, comprising: acquiring the wind power condition and the snowfall condition of the setting position of the gas water heater; determining a corresponding snow removing interval according to the snowfall condition, and determining a corresponding snow removing rotating speed according to the wind power condition; the snow removing device comprises a snow removing device, a wind power generation device, a snow removing device and a snow removing device, wherein the snow removing device is used for removing snow from the snow, the snow is reflected by the snow falling condition, the corresponding snow removing interval is smaller, and the corresponding snow removing rotating speed is larger as the wind power reflected by the wind power condition is larger; under the condition that the gas water heater does not work, controlling a fan of the gas water heater to operate at the snow removing rotating speed at intervals of snow removing.
According to the control method of the gas water heater, automatic snow removal is carried out on the smoke tube at the time when the gas water heater does not work, and the snow removal rotating speed and the snow removal interval used during automatic snow removal are determined according to the wind power condition and the snow reduction condition of the position where the gas water heater is arranged, so that a good snow removal effect can be achieved, the smoke tube is kept smooth when the gas water heater needs to be started, the gas water heater is not easily affected by wind and snow, risks are avoided in advance, and the problems of incomplete combustion, vibration combustion, high exhaust emission and the like of the gas water heater due to the fact that the smoke tube is blocked by snow can be solved.
In one embodiment, the wind conditions include wind levels, and the step of determining the corresponding snow removal rotational speed based on the wind conditions includes: under the condition that the wind power level is smaller than the preset wind power level, determining the snow removing rotating speed as the preset snow removing rotating speed; under the condition that the wind power grade is greater than or equal to the preset wind power grade, determining snow removal and speed increase according to the grade difference between the wind power grade and the preset wind power grade, and increasing the snow removal and speed increase on the basis of the preset snow removal rotating speed so as to obtain the snow removal rotating speed.
In one embodiment, the step of controlling the fan of the gas water heater to operate at a snow removal rotational speed comprises: controlling a fan to run for a first preset time at a snow removal rotating speed; judging whether a smoke pipe of the gas water heater is blocked or not after the fan runs for a first preset time at the snow removing rotating speed; and under the condition that the smoke pipe is blocked, controlling the fan to operate for a second preset time at the speed of snow removal.
The snow removing effect can be improved by controlling the fan to remove snow for a plurality of times.
In one embodiment, in the event of a clogged smoke tube, the step of controlling the blower to operate at the snow removal rotational speed for a second predetermined time includes: under the condition that the smoke pipe is blocked, the snow removing rotating speed is increased, and the fan is controlled to operate for a second preset time at the increased snow removing rotating speed.
If the snow removing effect in the previous stage is not good, the snow removing force can be increased by increasing the rotation speed of the snow removing, and whether snow can be removed is tried.
In one embodiment, the step of controlling the fan to operate at the snow removal rotational speed for a second preset time further includes: judging whether the smoke tube is blocked or not after the fan runs for a second preset time at the speed of snow removal; under the condition that the smoke pipe is blocked, the control of the fan of the gas water heater at intervals of snow removal is stopped to operate at the speed of snow removal.
If the blockage of the smoke tube cannot be removed by multiple attempts of snow removal, the snow cannot be removed by simply running the fan, and the snow removal is stopped so as to save energy consumption.
In one embodiment, the step of determining the snow removal interval based on the snowfall condition and determining the snow removal rotational speed based on the wind condition further comprises: setting a fan operation curve of the gas water heater when in operation according to the wind power condition; the wind power reflected by the wind power condition is larger, the grade of a fan operation curve corresponding to the wind power condition is higher, and the rotating speed corresponding to the same duty ratio in a high-grade fan operation curve is larger than the rotating speed corresponding to the same duty ratio in a low-grade fan operation curve.
According to the embodiment, the proper fan operation curve can be selected in advance under the condition that the gas water heater does not work, and when the gas water heater needs to be used, the proper fan operation curve is obtained when the gas water heater is started, so that the normal work of the gas water heater is ensured.
The proper fan operation curve is selected according to the wind power condition under the condition that the gas water heater does not work, but the actual operation condition of the fan is more complex, so that the combustion effect of the gas water heater is further ensured, and whether the fan operation curve needs to be switched can be judged according to the real-time rotating speed of the fan under the condition that the gas water heater works.
In one embodiment, the step of determining the snow removal interval based on the snowfall condition and determining the snow removal rotational speed based on the wind condition further comprises: determining a first acceleration according to the wind power condition and determining a second acceleration according to the snowfall condition; and the rotation speed of the blower during front cleaning and ignition is increased according to the first speed increasing and the second speed increasing.
According to the embodiment, the wind power condition and the snowfall condition are combined to improve the rotating speed of the fan during front cleaning and ignition, and the front cleaning effect and the ignition success rate are improved.
In one embodiment, the wind conditions include a wind level, the snowfall conditions include a snowfall level, and the steps of determining a first speed increase based on the wind conditions and determining a second speed increase based on the snowfall conditions include: determining a first interval to which the wind power level belongs according to the wind power level, and taking the acceleration rate corresponding to the first interval as a first acceleration rate; wherein the first section at least comprises one wind power level, and if the first section A i The lowest wind power level in the range A is higher than that in the first section A j The highest wind power level in the first interval A i The corresponding speed increase is greater than the first interval A j Corresponding speed increasing; determining a second interval to which the snowfall grade belongs according to the snowfall grade, and taking the acceleration corresponding to the second interval as a second acceleration; wherein the second section at least comprises one snowing grade, and if the second section B i The lowest snowfall level in the range B is higher than that in the second interval B j The highest snowfall level in the second interval B i The corresponding speed increase is larger than the second interval B j Corresponding to the acceleration rate.
In one embodiment, the step of obtaining the wind power condition and the snowfall condition of the setting position of the gas water heater comprises the following steps: after the communication connection between the gas water heater and the terminal is established, sending a positioning acquisition request to the terminal; after the terminal sends positioning information of the setting position of the gas water heater to the gas water heater according to the positioning request, the wind power condition and the snowfall condition corresponding to the positioning information are obtained according to the positioning information.
The positioning module is not required to be arranged on the gas water heater, the positioning information of the terminal is used as the positioning information of the gas water heater, the condition is provided for obtaining the wind power condition and the snowfall condition, and the structure of the gas water heater can be simplified.
The second technical problem is solved by the following technical scheme:
a gas water heater comprising: a blower; the controller is connected with the fan and comprises a memory and a processor, wherein the memory stores a computer program, and the processor realizes the steps of the control method of the gas water heater when executing the computer program.
Based on the gas water heater in this embodiment, carry out the automatic snow removal of tobacco pipe at the time of gas water heater unoperated, the snow removing rotational speed and the snow removing interval that use are according to the wind-force condition and the snowfall condition of gas water heater setting position department in the automatic snow removal confirm, so can have better snow removing effect, guarantee that the tobacco pipe keeps unblocked when the gas water heater of needs starts, make gas water heater be difficult for receiving the wind and snow influence, avoid the risk in advance, thereby can improve gas water heater because the burning incomplete, the vibrations burning that the snow blocking tobacco pipe appears, exhaust emission height scheduling problem.
Drawings
In order to more clearly illustrate the technical solutions of embodiments or conventional techniques of the present application, the drawings required for the descriptions of the embodiments or conventional techniques will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 is a flow chart of a control method of a gas water heater according to an embodiment;
FIG. 2 is a schematic flow chart of controlling a fan to operate at a snow removal rotational speed in one embodiment;
FIG. 3 is a schematic flow chart of a control fan operating at snow removal speed in another embodiment;
FIG. 4 is a schematic diagram of a plurality of fan operating curves in one embodiment;
FIG. 5 is a flow chart of switching fan operation curves in one embodiment;
FIG. 6 is a flow chart of adjusting rotational speed of a blower during pre-purge and ignition in one embodiment;
FIG. 7 is a flow diagram of determining a first acceleration rate and a second acceleration rate in one embodiment;
FIG. 8 is a flow chart of an embodiment for obtaining wind conditions and snowfall conditions;
FIG. 9 is a schematic diagram of a gas water heater in one embodiment;
reference numerals illustrate: 10-controller, 30-fan, 50-tobacco pipe.
Detailed Description
In order to facilitate an understanding of the present application, a more complete description of the present application will now be provided with reference to the relevant figures. Examples of the present application are given in the accompanying drawings. This application may, however, be embodied in many different forms and is not limited to the embodiments described 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 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 the terms "first," "second," and the like, as used herein, may be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another element.
Spatially relative terms, such as "under", "below", "beneath", "under", "above", "over" and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use and operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements or features described as "under" or "beneath" other elements would then be oriented "on" the other elements or features. Thus, the exemplary terms "below" and "under" may include both an upper and a lower orientation. Furthermore, the device may also include an additional orientation (e.g., rotated 90 degrees or other orientations) and the spatial descriptors used herein interpreted accordingly.
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 should be understood as "electrical connection", "communication connection", and the like if there is transmission of electrical signals or data between objects to be connected.
As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," and/or the like, specify the presence of stated features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof. Also, the term "and/or" as used in this specification includes any and all combinations of the associated listed items.
Referring to fig. 1, a control method of a gas water heater according to an embodiment of the present invention includes steps S102 to S106.
S102, acquiring wind power conditions and snowfall conditions of the setting position of the gas water heater.
It will be appreciated that there are large differences in wind conditions and snowfall conditions in certain places as the seasons change, and gas water heaters installed in these places also have different degrees of smoke tube blockage encountered under the influence of different wind conditions or snowfall conditions. In some embodiments, wind conditions may be represented by at least one of wind level, wind speed, etc., and snowfall conditions may be represented by at least one of snowfall level, snowfall amount, etc. In some embodiments, the gas water heater can extract wind power and snowfall from weather forecast information by acquiring the weather forecast information. In the case where the gas water heater is connected to the public network, the weather forecast information may be obtained by the gas water heater from an official weather information provider or a third party weather information provider through the public network. Under the condition that the gas water heater and the terminal are connected, the gas water heater can also send a weather forecast information acquisition request to the terminal, and the terminal responds to the weather forecast information acquisition request to send weather forecast information to the gas water heater. In addition, since the weather forecast information is of a forecast nature, the weather information provider may update the weather forecast information in real time according to actual conditions, and in order to ensure accuracy, may choose to acquire the latest updated weather forecast information.
S104, determining a corresponding snow removing interval according to the snowfall condition, and determining a corresponding snow removing rotating speed according to the wind power condition.
The snow removal device comprises a snow removal device, a wind power generation device and a snow removal device, wherein the snow removal device is characterized in that the snow removal device is used for removing snow more strongly, the corresponding snow removal interval is smaller, and the wind power reflected by the wind power is larger, so that the corresponding snow removal rotating speed is larger. It will be understood that the snow removal interval refers to the interval between two snow removal processes (snow removal process refers to controlling the operation of the fan of the gas water heater to blow snow off the smoke pipe). The snow removing rotating speed refers to the rotating speed used when the fan of the gas water heater blows snow at the smoke pipe. The stronger the snowfall, the more snow amount that the tobacco pipe accumulated in the same time, so this embodiment carries out more frequent snow removal, blows it before the snow in the tobacco pipe causes serious jam to the tobacco pipe. In addition, the scene of wind and snow intersection is quite common, the larger wind force means that the wind resistance at the smoke pipe is larger, and in order to overcome the larger wind resistance, the embodiment also adaptively improves the snow removing rotating speed so as to ensure the snow removing effect.
And S106, controlling a fan of the gas water heater to run at the snow removing rotating speed at intervals of snow removing under the condition that the gas water heater does not work.
Because the smoke pipe is blocked by snow, the starting of the gas water heater can be influenced, so that snow removal is required to be performed in advance under the condition that the gas water heater does not work, and the gas water heater is ready for normal starting. It is mentioned that if there is no snowfall, the control of the fan of the gas water heater should be stopped at intervals of snow removal to operate at the speed of snow removal to ensure low energy consumption.
According to the control method of the gas water heater, automatic snow removal is carried out on the smoke tube at the time when the gas water heater does not work, and the snow removal rotating speed and the snow removal interval used during automatic snow removal are determined according to the wind power condition and the snow reduction condition of the position where the gas water heater is arranged, so that a good snow removal effect can be achieved, the smoke tube is kept smooth when the gas water heater needs to be started, the gas water heater is not easily affected by wind and snow, risks are avoided in advance, and the problems of incomplete combustion, vibration combustion, high exhaust emission and the like of the gas water heater due to the fact that the smoke tube is blocked by snow can be solved.
In one embodiment, referring to fig. 2, the step of controlling the fan of the gas water heater to operate at the snow removal rotational speed includes steps S202 to S206.
S202, controlling a fan to run for a first preset time at the snow removing rotating speed.
S204, judging whether a smoke tube of the gas water heater is blocked or not after the fan runs for a first preset time at the snow removing rotating speed.
It can be understood that in order to further ensure the snow removing effect, the fan can be controlled to perform snow removing attempts for a plurality of times in one snow removing process, and after the fan runs for a first preset time at the speed of the snow removing speed, the snow removing effect can be determined according to whether the smoke tube of the gas water heater is blocked or not, so that whether to continue snow removing is determined. In some embodiments, the blockage of the smoke tube of the gas water heater is determined in the event that the rotational speed of the fan does not match the rotational speed of the snow removal. Under the condition that the rotating speed of the fan is higher than the snow removing rotating speed by a first preset value, the mismatching of the rotating speed of the fan and the snow removing rotating speed can be judged.
S206, under the condition that the smoke pipe is blocked, controlling the fan to operate for a second preset time at the snow removing rotating speed.
If the smoke pipe is still blocked after the fan runs for a first preset time at the snow removing rotating speed, the fan is continuously controlled to run for a second preset time at the snow removing rotating speed, and snow is attempted to be cleared. Under the condition that the smoke pipe is not blocked, the fan can be controlled to stop working in order to finish the current snow removing flow from the viewpoint of energy conservation.
In one embodiment, in the event of a clogged smoke tube, the step of controlling the blower to operate at the snow removal rotational speed for a second predetermined time includes: under the condition that the smoke pipe is blocked, the snow removing rotating speed is increased, and the fan is controlled to operate for a second preset time at the increased snow removing rotating speed. It can be understood that the snow removing force can be increased by increasing the rotation speed of the snow removing process because the snow removing effect in the previous stage is not good, and whether snow can be removed is tried.
In one embodiment, referring to fig. 3, the control method further includes steps S302 to S310.
S302, controlling a fan to run for a first preset time at the snow removing rotating speed.
S304, judging whether a smoke tube of the gas water heater is blocked or not after the fan runs for a first preset time at the snow removing rotating speed.
S306, under the condition that the smoke pipe is blocked, controlling the fan to operate for a second preset time at the snow removing rotating speed.
Step S302 to step S306 are similar to step S202 to step S206, and are not described herein.
And S308, judging whether the smoke tube is blocked or not after the fan runs for a second preset time at the snow removing rotating speed.
The manner in which the pipe is judged to be clogged can be referred to above.
And S310, stopping controlling the fan of the gas water heater to operate at the snow removing rotating speed at intervals of snow removing under the condition that the smoke pipe is kept blocked.
It can be understood that if the blockage of the smoke tube cannot be removed by multiple attempts of snow removal, the snow removal cannot be realized by simply running the fan. At this time, a first prompt signal can be sent out at the gas water heater to prompt the user to try to remove snow in other ways. The first prompting signal can be an acoustic signal, an optical signal and the like, and can also be sent to the bound user terminal through the wireless communication module. In some embodiments, after stopping controlling the fan of the gas water heater at intervals of snow removal at the snow removal rotational speed, if the smoke tube is unblocked, resuming controlling the fan of the gas water heater at intervals of snow removal at the snow removal rotational speed. In some embodiments, the snow may be too low to freeze in the smoke tube and the fan cannot blow the snow, and the snow melting heating module may be disposed in the smoke tube, and in the case that the smoke tube is blocked, the snow melting heating module is controlled to operate for a third preset time, and then whether the smoke tube is unblocked is determined. Under the condition that the smoke pipe is unblocked, the fan of the gas water heater is controlled to operate at the snow removing rotating speed at intervals of snow removing. In some embodiments, the second preset time may be selected to be greater than the first preset time. For example, the second preset time is 60 seconds, and the first preset time is 30 seconds.
In one embodiment, the wind conditions include wind levels, and the step of determining the corresponding snow removal rotational speed based on the wind conditions includes: under the condition that the wind power level is smaller than the preset wind power level, determining the snow removing rotating speed as the preset snow removing rotating speed; under the condition that the wind power grade is greater than or equal to the preset wind power grade, determining snow removal and speed increase according to the grade difference between the wind power grade and the preset wind power grade, and increasing the snow removal and speed increase on the basis of the preset snow removal rotating speed so as to obtain the snow removal rotating speed. Specifically, since the difference in wind power is not large when the wind power level is 2 or less, the preset wind power level may be set to 2, and the snow removal rotational speed is the preset snow removal rotational speed. Determining snow removal and speed increase according to the level difference between the wind power level and the preset wind power level can be as follows: the wind power grade differs from the preset wind power grade by one level, and unit snow removal speed increase is added on the basis of the preset wind power grade so as to obtain the snow removal rotating speed. And according to the product of the level difference and the unit snow removal acceleration rate, the snow removal acceleration rate can be obtained. Take the unit snow removal acceleration of 150 rpm as an example. When the wind power grade is 3, selecting to increase 150 revolutions per minute on the basis of presetting the rotational speed of snow removing; when the wind power grade is 4, 300 revolutions per minute are increased on the basis of presetting the snow removing rotating speed; when the wind power grade is 5, 450 revolutions per minute are increased on the basis of presetting the snow removing rotating speed; when the wind power level is 6, 600 revolutions per minute are increased on the basis of presetting the snow removing rotating speed; when the wind power grade is 7, 750 revolutions per minute are increased on the basis of presetting the snow removing rotating speed; when the wind power grade is 8, 900 revolutions per minute are increased on the basis of presetting the snow removing rotating speed; when the wind power grade is 9, 1050 revolutions per minute are increased on the basis of presetting the snow removing rotating speed; when the wind power grade is 10, 1200 revolutions per minute are increased on the basis of presetting the snow removing rotating speed; when the wind power grade is 11, 1350 revolutions per minute are increased on the basis of preset snow removing rotational speed.
In one embodiment, the step of determining the snow removal interval based on the snowfall condition and determining the snow removal rotational speed based on the wind condition further comprises: and setting a fan operation curve of the gas water heater when in operation according to the wind power condition. The wind power reflected by the wind power condition is larger, the grade of a fan operation curve corresponding to the wind power condition is higher, and the rotating speed corresponding to the same duty ratio in a high-grade fan operation curve is larger than the rotating speed corresponding to the same duty ratio in a low-grade fan operation curve. It can be appreciated that the fan operating curve reflects the correspondence between the duty cycle of the fan and the rotational speed of the fan, the greater the duty cycle of the fan, the greater the rotational speed of the fan. The rotational speed of the blower can be controlled by controlling the duty cycle of the blower. Because the wind resistance at the smoke tube is stronger as the wind force is larger, a higher-grade fan operation curve is required to ensure that enough air enters the combustion chamber to fully burn the fuel gas. According to the embodiment, the proper fan operation curve can be selected in advance under the condition that the gas water heater does not work, and when the gas water heater needs to be used, the proper fan operation curve is obtained when the gas water heater is started, so that the normal work of the gas water heater is ensured. In some embodiments, referring to FIG. 4, the wind condition includes a wind level, and the fan operating curve includes a first through eighth total of eight fan operating curves, wherein the eighth fan curve has a highest level and the first fan curve has a lowest level. As can be seen in fig. 4, the fan speed corresponding to the same fan duty cycle is higher in the higher-level fan operating curve. The first fan operation curve corresponds to 0-4 levels of wind power levels, the second operation curve corresponds to 5 levels of wind power levels, the third operation curve corresponds to 6 levels of wind power levels, the fourth operation curve corresponds to 7 levels of wind power levels, the fifth operation curve corresponds to 8 levels of wind power levels, the sixth operation curve corresponds to 9 levels of wind power levels, the seventh operation curve corresponds to 10 levels of wind power levels, and the eighth operation curve corresponds to 11 levels of wind power levels.
In one embodiment, the control method further includes steps S502 to S508.
S502, judging whether the rotating speed of the fan is matched with the current fan operation curve under the condition that the gas water heater works.
It can be understood that a proper fan operation curve is selected according to the wind power condition under the condition that the gas water heater does not work, but the actual operation condition of the fan is more complex, so that in order to further ensure the combustion effect of the gas water heater, whether the fan operation curve needs to be switched can be judged according to the real-time rotation speed of the fan under the condition that the gas water heater works.
S504, maintaining the current fan operation curve under the condition that the rotating speed of the fan is matched with the current fan operation curve.
Specifically, the current rotating speed of the fan and the duty ratio of the fan are obtained, the target rotating speed corresponding to the duty ratio of the fan is searched from the current fan operation curve, and whether the rotating speed of the fan is matched with the current fan operation curve or not is determined according to the difference between the rotating speed of the fan and the target rotating speed. And if the difference between the rotating speed of the fan and the target rotating speed is smaller than a preset threshold value, judging that the rotating speed of the fan is matched with the current fan operation curve. If the rotating speed of the fan is smaller than the target rotating speed and the difference is larger than the preset threshold, judging that the rotating speed of the fan is lower than the target rotating speed. If the rotating speed of the fan is greater than the target rotating speed and the difference is greater than the preset threshold, judging that the rotating speed of the fan is higher than the target rotating speed.
S506, switching to a fan operation curve with the level lower than the current fan operation curve under the condition that the rotating speed of the fan is lower than the target rotating speed.
The target rotating speed is the rotating speed corresponding to the current duty ratio of the fan in the current fan operation curve. It will be appreciated that a lower speed of the fan than the target speed indicates less windage, and a lower level fan operating profile is used to reduce speed while achieving both low energy consumption and adequate combustion. In some embodiments, after switching the fan operating curve (including turning down or up), the process may return to step S502 to continue until a matching fan operating curve is selected.
S508, switching to a fan operation curve with the grade higher than the current fan operation curve under the condition that the rotating speed of the fan is higher than the target rotating speed.
It will be appreciated that a higher speed of the fan than the target speed indicates greater windage, and a higher level of fan operating curve is required to increase the speed to overcome windage and ensure adequate combustion.
In some embodiments, after the wind power condition is obtained, if the wind power reflected by the wind power condition is above the limit wind power, the gas water heater is controlled to stop working. In a specific embodiment, the wind condition comprises a wind power grade, when the wind power grade is 12 or more, the wind speed is extremely high, the destroying force is extremely large, the gas water heater is rarely appeared on the land, the gas water heater needs to be forbidden to operate in the wind power environment, and the gas water heater avoids more danger, so that the limit wind power can be selected to be the 12-grade wind power grade.
In one embodiment, referring to fig. 6, the steps of determining the snow removing interval according to the snowfall condition and determining the snow removing rotation speed according to the wind condition further include step S602 and step S604.
S602, determining a first speed increase according to the wind power condition and determining a second speed increase according to the wind power condition.
S604, the rotation speed of the blower during front cleaning and ignition is increased according to the first speed increasing and the second speed increasing.
It can be understood that the gas water heater needs to clean before ignition, and the wind resistance brought by the wind power condition and snow accumulated from the snowfall condition can influence the front cleaning effect and the ignition success rate, so that the rotation speed of the blower during front cleaning and ignition is improved by combining the wind power condition and the snowfall condition in order to improve the front cleaning effect and the ignition success rate.
In one embodiment, the wind conditions include a wind level and the snowfall conditions include a snowfall level. Referring to fig. 7, the steps of determining a first acceleration according to the wind conditions and determining a second acceleration according to the snowfall conditions include S702 and S704.
S702, determining a first section to which the wind power level belongs according to the wind power level, and taking the speed increase corresponding to the first section as a first speed increase.
Wherein the first section at least comprises one wind power level, and if the first section A i The lowest wind power level in the range A is higher than that in the first section A j The highest wind power level in the first interval A i The corresponding speed increase is greater than the first interval A j Corresponding to the acceleration rate. In a specific embodiment, includes a first interval A 1 、A 2 。。。A 5 . First interval A 1 Corresponding to wind levels 0 to 4. First interval A 2 Corresponding to wind levels 5 to 6. First interval A 3 Corresponding to wind levels 7 to 8. First interval A 4 Corresponding to wind levels 9 to 10. First interval A 5 Corresponding to a wind level of 11. In a specific embodiment, the first interval A 1 Corresponding to the speed increasing of 0 revolutions per minute, a first interval A 2 Corresponding to 300 rpm of speed increase, a first interval A 3 The corresponding speed is 600 rpm, and the first interval A 4 The corresponding speed-up is 900 rpm, and the first interval A 5 The corresponding acceleration rate was 1200 rpm.
S704, determining a second section to which the snowfall level belongs according to the snowfall level, and taking the acceleration corresponding to the second section as a second acceleration.
Wherein the second section at least comprises one snowing grade, and if the second section B i The lowest snowfall level in the range B is higher than that in the second interval B j The highest snowfall level in the second interval B i The corresponding speed increase is larger than the second interval B j Corresponding to the acceleration rate. In a specific embodiment, includes a first interval B 1 、B 2 . Second interval B 1 Corresponding to snowfall grade little snow and middle school. Second interval B 2 Corresponding to snowfall grades of heavy snow, heavy snow and extra heavy snow. In a specific embodiment, the second interval B 1 Corresponding to 300 rpm of speed increase, and a second interval B 2 Corresponding speed increasing600 rpm.
In one embodiment, step S604 may be to increase the rotational speed of the blower during pre-sweep and ignition using a sum of the first and second increases. For example, if the first speed increase is 600 rpm and the second speed increase is 300 rpm, the rotational speed of the blower during the pre-cleaning and ignition is increased by 900 rpm from the initial value. Step S604 may further be to increase the rotational speed of the blower during the pre-sweep and ignition by using a weighted sum of the first and second increases. The weights of the first acceleration and the second acceleration are set according to actual conditions.
In one embodiment, referring to fig. 8, the steps of acquiring the wind power condition and the snowfall condition of the installation position of the gas water heater include S802 and S804.
S802, after the gas water heater is in communication connection with the terminal, a positioning acquisition request is sent to the terminal.
It will be appreciated that a positioning module is not provided in a typical gas water heater, and that a positioning module, such as a user's cell phone, tablet computer, etc., is provided in many terminals. In addition, the gas water heater is often bound with the terminal for intelligent requirement, so that communication connection can be established with the terminal. Because the space distance between the terminal and the gas water heater is not too far, the snowfall condition is basically consistent with the wind power condition, and in order to simplify the structure of the gas water heater, a positioning module can be not arranged on the gas water heater, and the positioning information of the terminal is used as the positioning information of the gas water heater. The gas water heater can find out the corresponding wind power condition and snowfall condition from the public network according to the positioning information.
S804, after the terminal sends the positioning information of the setting position of the gas water heater to the gas water heater according to the positioning request, the wind power condition and the snowfall condition corresponding to the positioning information are obtained according to the positioning information.
It should be understood that, although the steps in the flowcharts of fig. 1 to 3 and 5 to 8 are sequentially shown as indicated by arrows, the steps are not necessarily sequentially performed in the order indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least a portion of the steps of fig. 1-3 and 5-8 may include multiple steps or stages that are not necessarily performed at the same time, but may be performed at different times, nor does the order in which the steps or stages are performed necessarily occur sequentially, but may be performed alternately or alternately with other steps or at least a portion of the steps or stages in other steps.
Referring to fig. 9, a gas water heater according to an embodiment of the present invention includes a controller 10, a fan 30, and a smoke tube 50. The controller 10 is connected to the fan 30, and the controller includes a memory and a processor, the memory storing a computer program, the processor implementing when executing the computer program:
acquiring the wind power condition and the snowfall condition of the setting position of the gas water heater;
determining a corresponding snow removing interval according to the snowfall condition, and determining a corresponding snow removing rotating speed according to the wind power condition; the snow removing device comprises a snow removing device, a wind power generation device, a snow removing device and a snow removing device, wherein the snow removing device is used for removing snow from the snow, the snow is reflected by the snow falling condition, the corresponding snow removing interval is smaller, and the corresponding snow removing rotating speed is larger as the wind power reflected by the wind power condition is larger;
under the condition that the gas water heater does not work, controlling a fan of the gas water heater to operate at the snow removing rotating speed at intervals of snow removing.
Based on the gas water heater in this embodiment, carry out the automatic snow removal of tobacco pipe 50 at the time of gas water heater unoperated, the snow removing rotational speed and the snow removing interval that use during automatic snow removal are according to the wind-force condition and the snowfall condition of gas water heater setting position department confirm, so can have better snow removing effect, guarantee that the tobacco pipe remains unblocked when the gas water heater of needs starts, make gas water heater be difficult for receiving the wind and snow influence, avoid the risk in advance, thereby can improve the gas water heater because the incomplete, the vibrations burning of the burning that the burning pipe 50 appears of snow blockage, exhaust emission height scheduling problem.
In some embodiments, the steps of the control method of the gas water heater described in any of the above embodiments are implemented when the processor executes the computer program.
The embodiment of the invention also provides a control device of the gas water heater, which comprises a data acquisition module, a snow removal parameter determination module and a snow removal execution module. The data acquisition module is used for acquiring the wind power condition and the snowfall condition of the setting position of the gas water heater. The snow removing parameter determining module is used for determining corresponding snow removing intervals according to the snowfall condition and determining corresponding snow removing rotating speeds according to the wind power condition. The snow removing execution module is used for controlling a fan of the gas water heater to run at the snow removing rotating speed at intervals of snow removing under the condition that the gas water heater does not work.
Based on the control device of the gas water heater in the embodiment, automatic snow removal is carried out on the smoke tube in the time when the gas water heater does not work, and the snow removal rotating speed and the snow removal interval used in the automatic snow removal process are determined according to the wind force condition and the snow reduction condition of the setting position of the gas water heater, so that a better snow removal effect can be achieved, the smoke tube is kept smooth when the gas water heater needs to be started, the gas water heater is not easily affected by wind and snow, the risk is avoided in advance, and the problems that the gas water heater is incomplete in combustion, vibration combustion, high in exhaust emission and the like due to the fact that the smoke tube is blocked by snow can be solved.
The specific limitation of the control device of the gas water heater can be referred to the limitation of the control method of the gas water heater, and the description thereof is omitted herein. The above-mentioned various modules in the control device of the gas water heater can be implemented by all or part of software, hardware and their combination. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules. It should be noted that, in the embodiment of the present application, the division of the modules is schematic, which is merely a logic function division, and other division manners may be implemented in actual implementation.
Those skilled in the art will appreciate that implementing all or part of the above-described methods in accordance with the embodiments may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed may comprise the steps of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, or the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory. By way of illustration, and not limitation, RAM can be in the form of a variety of forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), and the like.
In the description of the present specification, reference to the terms "some embodiments," "other embodiments," "desired embodiments," and the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples represent only a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.
Claims (10)
1. A control method of a gas water heater, comprising:
acquiring the wind power condition and the snowfall condition of the setting position of the gas water heater;
determining a corresponding snow removing interval according to the snowfall condition, and determining a corresponding snow removing rotating speed according to the wind power condition; the snow removing device comprises a snow removing device, a wind power generation device and a snow removing device, wherein the snow removing device is characterized in that the snow removing device is used for removing snow reflected by the snowing condition is stronger, the corresponding snow removing interval is smaller, and the corresponding snow removing rotating speed is larger as the wind power reflected by the wind power condition is larger;
and under the condition that the gas water heater does not work, controlling a fan of the gas water heater to run at the snow removing rotating speed at intervals of snow removing.
2. The method for controlling a gas water heater according to claim 1, wherein the wind condition includes a wind level, and the step of determining the corresponding snow removal rotational speed according to the wind condition includes:
under the condition that the wind power level is smaller than a preset wind power level, taking a preset snow removing rotating speed as the snow removing rotating speed;
and under the condition that the wind power level is greater than or equal to the preset wind power level, determining snow removal speed increase according to the level difference between the wind power level and the preset wind power level, and increasing the snow removal speed increase on the basis of the preset snow removal speed to obtain the snow removal speed.
3. The control method of a gas water heater according to claim 1, wherein the step of controlling a fan of the gas water heater to operate at the snow removal rotational speed includes:
controlling the fan to run for a first preset time at the snow removing rotating speed;
judging whether a smoke pipe of the gas water heater is blocked or not after the fan runs for a first preset time at the snow removing rotating speed;
and under the condition that the smoke pipe is blocked, controlling the fan to run for a second preset time at the snow removing rotating speed.
4. The control method of a gas water heater according to claim 3, wherein the step of controlling the blower to operate at the snow removal rotational speed for a second preset time in the case that the smoke pipe is clogged includes:
and under the condition that the smoke pipe is blocked, the snow removing rotating speed is increased, and the fan is controlled to operate for a second preset time at the increased snow removing rotating speed.
5. The method for controlling a gas water heater according to claim 3, wherein the step of controlling the blower to operate at the snow removal rotational speed for a second preset time further comprises:
judging whether the smoke tube is blocked or not after the fan runs for the second preset time at the snow removing rotating speed;
and under the condition that the smoke pipe is kept blocked, stopping controlling the fan of the gas water heater to run at the snow removing rotating speed at intervals of snow removing.
6. The control method of a gas water heater according to claim 1, wherein the step of determining a snow removal interval according to the snowfall condition and determining a snow removal rotational speed according to the wind condition further comprises:
setting a fan operation curve of the gas water heater when in operation according to the wind power condition; the wind power reflected by the wind power condition is larger, the grade of the fan operation curve corresponding to the wind power condition is higher, and the rotating speed corresponding to the same duty ratio in the fan operation curve at a high grade is larger than the rotating speed corresponding to the same duty ratio in the fan operation curve at a low grade.
7. The control method of a gas water heater according to claim 1, wherein the step of determining a snow removal interval according to the snowfall condition and determining a snow removal rotational speed according to the wind condition further comprises:
determining a first acceleration according to the wind power condition, and determining a second acceleration according to the snowfall condition;
and increasing the rotating speed of the fan during front cleaning and ignition according to the first speed increase and the second speed increase.
8. The method of controlling a gas water heater according to claim 7, wherein the wind condition includes a wind level, the snowfall condition includes a snowfall level, and the determining a first speed increase based on the wind condition and a second speed increase based on the snowfall condition includes:
determining a first interval to which the wind power grade belongs according to the wind power grade, wherein the first interval corresponds to the first interval and is the first acceleration; wherein the first section at least comprises one wind power level, and if the first section A i The lowest wind power level in the range A is higher than that in the first interval A j The highest wind power level in the first interval A i The corresponding speed increase is greater than the first interval A j Corresponding speed increasing;
determining a second interval to which the snowing grade belongs according to the snowing grade, and taking the acceleration corresponding to the second interval as the second acceleration; wherein the second section at least comprises one of the snowfall grades, and if the second section B i The lowest snowfall grade in (2) is higher than the second interval B j The highest snowfall level in (2), a second interval B i The corresponding speed increase is larger than the second interval B j Corresponding to the acceleration rate.
9. The control method of a gas water heater according to any one of claims 1 to 8, wherein the step of acquiring a wind force condition and a snowfall condition of the gas water heater setting position includes:
after the gas water heater establishes communication connection with a terminal, sending a positioning acquisition request to the terminal;
after the terminal sends positioning information of the setting position of the gas water heater to the gas water heater according to the positioning request, the wind power condition and the snowfall condition corresponding to the positioning information are obtained according to the positioning information.
10. A gas water heater, comprising:
a blower;
a controller connected to the fan, the controller comprising a memory and a processor, the memory storing a computer program, the processor implementing the steps of the control method of the gas water heater according to any one of claims 1 to 9 when executing the computer program.
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