CN114484891B - Water heater control method and system, water heater and storage medium - Google Patents
Water heater control method and system, water heater and storage medium Download PDFInfo
- Publication number
- CN114484891B CN114484891B CN202210122508.3A CN202210122508A CN114484891B CN 114484891 B CN114484891 B CN 114484891B CN 202210122508 A CN202210122508 A CN 202210122508A CN 114484891 B CN114484891 B CN 114484891B
- Authority
- CN
- China
- Prior art keywords
- water
- water flow
- preset
- range
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
Landscapes
- 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)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses a water heater control method and system, a water heater and a storage medium. The control method of the water heater comprises the following steps: detecting the period of inflow water flow fluctuation; and when the measured period is less than a first preset value, controlling the heating device to heat at a constant power, wherein the constant power is obtained based on the power required for heating the minimum water flow in the fluctuation range and the power required for heating the maximum water flow in the fluctuation range. The water in the water heater is heated by the constant power between the maximum power and the minimum power in the fluctuation range, so that the problem of aggravated water temperature fluctuation caused by heat load and water flow peak shifting can be avoided.
Description
Technical Field
The invention relates to the field of water heaters, in particular to a water heater control method and system, a water heater and a storage medium.
Background
When the water heater is used, the water temperature is easily fluctuated and heated due to water flow fluctuation, the user experience is influenced, and for solving the problems, the existing mode is that the heating device is controlled by the server to change along with the fluctuation of the water flow, the power is increased when the water flow is increased, the power is reduced when the water flow is reduced, but the above mode has the following defects:
when the water flow fluctuation period is too small, the water flow and the heat load are off-peak due to the fact that a certain delay exists in water heating, and the water temperature fluctuation is aggravated, so that the use experience of a user is greatly influenced.
Disclosure of Invention
The invention aims to overcome the defect that temperature fluctuation can not be inhibited when the water flow fluctuation period is small in the prior art, and provides a water heater control method and system, a water heater and a storage medium.
The invention solves the technical problems through the following technical scheme:
a water heater control method comprising the steps of:
detecting the period of inflow water flow fluctuation;
and when the measured period is less than a first preset value, controlling the heating device to heat at a constant power, wherein the constant power is obtained based on the power required for heating the minimum water flow rate in the fluctuation range and the power required for heating the maximum water flow rate in the fluctuation range.
The water in the water heater is heated by a constant power between the maximum power and the minimum power in the fluctuation range, so that the problem of aggravated water temperature fluctuation caused by heat load and water flow peak shifting can be avoided.
Preferably, the constant power is an average of a power required to heat the minimum water flow rate and a power required to heat the maximum water flow rate.
Preferably, the water heater control method further includes the steps of:
and when the measured period of the fluctuation of the inflow water flow is larger than a first preset value, controlling the power of the heating device to be in positive correlation with the change of the inflow water flow.
When the water flow fluctuation period is large, the power following mode has good water temperature fluctuation inhibition performance, and the power following mode is favorable for reducing water temperature fluctuation and improving user experience.
Preferably, before controlling the power of the heating device to change along with the fluctuation of the water inlet flow, the method further comprises the operation of reducing the difference between the minimum water flow and the maximum water flow to a first preset range in a mode of reducing the water inlet flow.
When the water flow fluctuation is large, the water flow change amplitude is increased, the heating delay is increased, and the risk of aggravation of water temperature fluctuation caused by heat load and water flow peak staggering is increased, so that the risk of aggravation of water temperature fluctuation caused by heating delay is avoided by reducing the water flow fluctuation.
Preferably, the operation of reducing the water inlet flow rate comprises the following steps:
judging whether the difference value is in a first preset range or not;
if the difference value is outside the first preset range, the valve port is adjusted to be small according to the preset step length, whether the difference value is within the first preset range or not is judged during adjustment each time, if the difference value is outside the first preset range, the valve port is continuously adjusted to be small, and if the difference value is within the first preset range, the operation of adjusting to be small is stopped.
The problem of water flow fluctuation aggravation caused by turbulent flow caused by violent change of water flow can be avoided by gradually reducing the valve port.
Preferably, the method further comprises the following steps before the period of detecting the inflow water flow fluctuation:
and adjusting the water inlet state parameter of the water heater to a second preset range, wherein the second preset range comprises a preset water flow range and a preset temperature range.
Therefore, the water inlet state parameters of the water heater can be kept within a certain controllable range, and a good foundation is provided for the follow-up water temperature fluctuation suppression operation.
Preferably, the step of adjusting the water inlet state parameter of the water heater to a second preset range includes:
judging whether the water heater is in a pressurization mode:
if the water heater is in a pressurization mode, sequentially adjusting the temperature and the water flow to enable the state parameters of the inlet water to be in the second preset range;
and if the water heater is not in the pressurization mode, adjusting the water flow so as to enable the state parameter of the inlet water to be in a second preset range.
The reason for adopting the above operation logic is that: in the boost mode, the risk of water not being hot is increased, so the water temperature is preferentially guaranteed, and then the water flow is adjusted. The time of cold water of the water heater can be reduced, and the use experience of a user is improved.
Preferably, the operation of adjusting the water temperature and the water flow in sequence to enable the state parameter of the inlet water to be in the second preset range includes:
and regulating the water flow to make the water temperature within a preset temperature range, and regulating the water flow to be within a preset water flow range on the premise that the water temperature is within the preset temperature range.
By adopting the operation logic, the water flow can be regulated on the premise that the user always has available hot water, the time of cold water outlet of the water heater is favorably shortened, and the use experience of the user is improved.
Preferably, the step of adjusting the large water flow to the preset water flow range on the premise that the water temperature is within the second preset range includes:
and adjusting the water flow according to a preset step length, detecting the water temperature during each adjustment, if the water temperature is within the middle temperature range, continuing the operation of adjusting the water flow, and if the water temperature is outside the middle temperature range, ending the operation cycle of the water heater control method, wherein the middle temperature range is within the preset temperature range.
Through setting up the middle temperature range that is in presetting the temperature range within, can further reduce the temperature fluctuation condition of adjusting water flow in-process, improve user experience.
The invention also provides a water heater control system, comprising:
the detection module is used for detecting the period of fluctuation of the inflow water flow;
and the heating control module is used for controlling the heating device to heat at constant power when the period detected by the detection module is less than a first preset value, and the constant power is obtained based on the power required for heating the minimum water flow in the fluctuation range and the power required for heating the maximum water flow in the fluctuation range.
Preferably, the constant power is an average of a power required to heat the minimum water flow rate and a power required to heat the maximum water flow rate.
Preferably, the heating control module is further configured to:
and when the period of the fluctuation of the inflow water flow measured by the detection module is greater than a first preset value, controlling the power of the heating device to be positively correlated with the change of the inflow water flow.
Preferably, the system further comprises a fluctuation suppression module, wherein the fluctuation suppression module is used for reducing the difference between the minimum water flow and the maximum water flow within the fluctuation range to a first preset range before the heating control module enables the power of the heating device to change along with the fluctuation of the inlet water flow.
Preferably, the fluctuation suppressing module includes:
the detection unit is used for detecting whether the difference value is in a first preset range or not;
and the valve port adjusting unit is used for reducing the valve port according to a preset step length, calling the detection unit to detect whether the difference value is in a first preset range during each adjustment, if the difference value is out of the first preset range, continuously reducing the valve port, and if the difference value is in the first preset range, stopping reducing the valve port.
Preferably, the system further comprises a water inlet control module, wherein the water inlet control module comprises:
the judging unit is used for judging whether the water heater is in a pressurization mode or not;
the control unit of intaking, be used for the judge unit judges when the water heater is in the pressure boost mode, adjust temperature, discharge in proper order so that the state parameter of intaking is in the second and predetermine the scope, and the judge unit judges when the water heater is not in the pressure boost mode, adjust discharge so that the state parameter of intaking is in the second and predetermine the scope.
Preferably, the water inlet control unit includes:
the water flow control subunit is used for adjusting the water flow to enable the water flow to be in a second preset range;
and the water temperature control subunit is used for adjusting the water temperature to enable the water temperature to be in a second preset range.
Preferably, the water flow control subunit is further configured to enable the water temperature to be within a second preset range all the time in the process of adjusting the water flow to the second preset range.
Preferably, the water inlet control unit further comprises a temperature measuring subunit, the water flow control subunit is configured to increase the valve port by a specific step length, detect the water temperature by calling the temperature measuring subunit during each adjustment, continue the operation of increasing the water flow when the water temperature is within the intermediate temperature range, and end the operation cycle of the water heater control method when the water temperature is outside the intermediate temperature range, where the intermediate temperature range is within the preset temperature range.
The invention also provides a water heater, which comprises a water tank, a valve port connected with the water tank, a heating device used for heating the water tank, a valve port controller used for adjusting the size of the valve port, a booster valve arranged in front of the valve port, a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the memory, the valve port controller, the heating device and the booster valve are electrically connected with the processor, and the processor can realize the water heater control method when executing the computer program.
The invention also provides a storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements a water heater control method as described above.
The positive progress effects of the invention are as follows:
when the water flow fluctuation condition is smaller than the preset value, the water in the water heater is heated by the constant power between the maximum power and the minimum power in the fluctuation range, so that the standard deviation between the water temperature in a specific time period and the preset water temperature can be reduced, the water temperature fluctuation inhibition is realized, and the condition that the water temperature fluctuation is aggravated due to heating delay can be avoided.
Drawings
FIG. 1 is a flow chart of a water heater control method;
FIG. 2 is a block diagram of a water heater control system;
FIG. 3 is a block diagram of a water heater;
description of the reference numerals:
water heater control system 10
Valve port adjusting unit 420
Water intake control module 500
Judging unit 510
Water inlet control unit 520
Water flow control subunit 521
Water temperature control subunit 522
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
Example 1
As shown in fig. 1, a control method of a water heater includes the following steps:
detecting the fluctuation period of the inflow water flow, wherein the inflow water flow refers to the water flow entering the water heater 600, and the inflow water flow inevitably fluctuates periodically due to the reasons of pipeline resonance and the like, and the detected fluctuation period of the inflow water flow is the fluctuation period of the inflow water flow;
when the measured period is less than the first preset value, the heating device 200 is controlled to heat at a constant power, which is obtained based on the power required to heat the minimum water flow rate within the fluctuation range and the power required to heat the maximum water flow rate within the fluctuation range. The first preset value referred to here is a fluctuation period of 8s, and the fluctuation period exceeds two. The power required for heating the maximum water flow or the minimum water flow referred to herein is the power required for heating the maximum water flow or the minimum water flow to a preset temperature.
The problem of water temperature fluctuation aggravation due to heat load and water flow rate peak staggering when a fluctuating power load is adopted can be avoided by heating the water in the water heater 600 through a constant power positioned between the maximum power and the minimum power in the fluctuation range.
In this embodiment, the constant power is an average of the power required to heat the minimum water flow and the power required to heat the maximum water flow. The constant power is achieved by regulating the current of a proportional valve, the current I of which need The following set of equations is satisfied,
Q need ＝(T setting up -T Inflow water )*L Water (W)
(Q need -Q min )/(Q max -Q min )＝(I need -I min )/(I max -I min )
L Water (W) ＝(L max +L min )/2
Wherein Q is need Is the required energy, T Setting up Is a set temperature, T Inflow water Is the temperature of the inlet water, Q min Is the lowest small energy output, I min Is the minimum current of the proportional valve, I max Is the maximum current of the proportional valve. L is max Is the maximum value of water flow, L min Is the minimum value of water flow, L Water (W) Are intermediate calculation parameters.
Preferably, this embodiment judges whether present is summer or winter through measuring the temperature of intaking, when judging present is summer through measuring the temperature of intaking, makes this constant power slightly be lower than the average, if judge present is winter, makes this constant power slightly be higher than the average. Thereby further enhancing the user experience.
In this embodiment, the control method of the water heater 600 further includes the following steps:
when the measured period of the inflow fluctuation is greater than the first preset value, that is, the period is greater than 8s, the power of the heating device 200 is controlled to be positively correlated with the change of the inflow.
The term "directly correlating the power of the heating device 200 with the change of the inflow rate" means that the heating power is increased when the inflow rate is increased, and the heating power is decreased when the inflow rate is decreased. Therefore, the water flow can be heated by adopting larger power when the water flow is increased, and the water flow is heated by adopting smaller power when the water flow is reduced, so that the condition of water temperature fluctuation caused by water flow fluctuation is slowed down and even eliminated, and the use experience of a user is improved.
When the water flow fluctuation period is large, the heating delay is within an acceptable range, and at the moment, the water temperature fluctuation can be better inhibited by adopting a power following mode with better water temperature fluctuation inhibiting capability, so that the user experience is improved.
In this embodiment, before controlling the power of the heating apparatus 200 to follow the fluctuation of the inlet water flow, the operation of reducing the difference between the minimum water flow and the maximum water flow within the fluctuation range to the first preset range by adjusting the inlet water flow is further included. The first predetermined range is L max -L min Is less than 2L/s. Wherein L is max Maximum water flow, L min Is a minimum water flow.
When the water flow fluctuation is large, the water flow change amplitude is increased, the heating delay is increased, and the risk that the water temperature fluctuation is aggravated due to the thermal load and the water flow peak staggering is increased, so that the risk that the water temperature fluctuation is aggravated due to the heating delay is avoided by reducing the water flow fluctuation.
In this embodiment, the operation of reducing the inflow rate of water includes the following steps:
judging whether the difference value is within a first preset range;
if the difference value is outside the first preset range, the valve port 620 is adjusted to be smaller according to the preset step length, whether the difference value is within the first preset range or not is judged during adjustment each time, if the difference value is outside the first preset range, the valve port 620 is continuously adjusted to be smaller, and if the difference value is within the first preset range, the operation of the valve port 620 is stopped to be smaller.
Through the mode of turning down valve port 620 step by step can avoid leading to the problem of the undulant aggravation of discharge because of the torrent change of discharge causes the torrent.
In this embodiment, the following steps are further included before the period of detecting the inflow water flow rate fluctuation:
water inlet shape of water heater 600Adjusting the state parameter to a second preset range, wherein the second preset range comprises a preset water flow range and a preset temperature range, the preset water flow range is 8L/s-9L/s, and the preset temperature range is (T) Preset of -5℃)＜T＜(T Preset of +5 ℃), where T is the current temperature, T Preset Is a preset temperature.
The initial state of water inlet of the water heater 600 is adjusted to be kept within a certain controllable range, and a basis is provided for subsequent water temperature fluctuation suppression operation.
Specifically, in this embodiment, the step of adjusting the water inlet state parameter of the water heater 600 to be within the second preset range includes:
judging whether the water heater 600 is in a pressurization mode, wherein the pressurization mode refers to pressurizing water by a pressurization pump to increase the water flow rate to meet the use requirement under the condition of insufficient water flow rate;
if the water heater 600 is in a pressurization mode, the temperature and the water flow are sequentially adjusted to enable the state parameters of water inflow to be in a second preset range;
if the water heater 600 is not in the pressurization mode, the water flow is adjusted to make the water inlet state parameter in the second preset range.
The reason for adopting this operation is because under the pressure boost mode, the risk that the water is not hot increases, and the sensitivity of user to temperature is greater than the sensitivity to water flow, therefore preferentially make the temperature satisfy user's operation requirement, later readjust water flow make water flow can satisfy customer's requirement, reducible water heater 600 goes out the time of cold water, promotes user's use experience.
And under the non-pressure boost mode, do not have the risk that the water is not hot, consequently only adjust water flow can satisfy customer's requirement. By adopting different operation logics for different modes, the response speed can be increased, and the water inlet state parameters can reach the preset range more quickly and better.
In the non-supercharging mode, the operation of adjusting the water flow rate so that the state parameter of the inlet water is within a second preset range comprises:
judging the current water flow;
when the water flow is less than 10L/s, carrying out subsequent water temperature fluctuation suppression operation;
when the water flow is larger than 10L/s, the servo adjusts the valve port 620 to be small by a preset step length, wherein the preset step length is that the valve port 620 is reduced by 5% every time; and the water flow is detected after the valve port 620 is adjusted each time, if the water temperature is detected to be not less than 10L/s, the valve port 620 is continuously reduced, and if the water flow is detected to be less than 9L/s, the operation of the valve port 620 is stopped being reduced. The adoption of a step-by-step adjusting mode can avoid turbulence caused by rapid change of water flow and reduce water temperature fluctuation.
In the pressurization mode, the operation of adjusting the water temperature and the water flow in sequence to enable the state parameter of the inlet water to be in a second preset range comprises the following steps:
and (3) reducing the water flow so as to enable the water temperature to be within a preset temperature range, and reducing the large water flow to be within the preset water flow range on the premise that the water temperature is within the preset temperature range.
The water flow rate is adjusted to be small, and the specific steps are as follows:
judging whether the water temperature is in a second preset range or not;
if the water temperature is not within the second preset range, the servo adjusts the valve port 620 to be smaller by a preset step length, wherein the preset step length is that the valve port 620 is reduced by 5% every time; and detects the water temperature after adjusting the valve port 620 every time, if the water temperature is detected not to reach T Preset +1 deg.c, the valve port 620 is turned down continuously, if it is detected that the water temperature reaches T Preset of +1 deg.c, the operation of the reducing valve port 620 is stopped. The adoption of a step-by-step adjusting mode can avoid turbulence caused by rapid change of water flow and reduce water temperature fluctuation.
By adopting the operation logic for preferably ensuring the temperature, the time of cold water output of the water heater 600 can be reduced as much as possible, and the use experience of a user is improved.
The specific steps of regulating the large water flow to the preset water flow range on the premise that the water temperature is within the second preset range include:
judging whether the water flow is less than 8L/s;
if the water flow is less than 8L/s, the water flow is increased according to a preset step length, and the step length is adjusted to be smaller than the preset step lengthThe preset step length is to increase the valve port 620 by 5% each time, detect the water temperature during each adjustment, continue to increase the water flow if the water temperature is within the middle temperature range, and end the operation cycle of the control method of the water heater 600 if the water temperature is outside the middle temperature range, where the middle temperature range is within the preset temperature range, specifically, the middle temperature range is T < (T <) Preset of -1 ℃), where T is the current temperature, T Preset of For the preset temperature, the intermediate temperature range is used as the temperature standard for stopping increasing the valve port 620 instead of the preset temperature range, so as to further reduce the fluctuation of the water temperature and improve the user experience;
and if the water flow is more than 8L/s, performing subsequent water temperature fluctuation suppression operation.
Example 2
As shown in fig. 2, the present invention also provides a water heater control system 10, comprising:
the detection module 100 is used for detecting the period of inflow fluctuation;
and a heating control module 300 for controlling the heating device 200 to heat at a constant power based on a power required to heat the minimum water flow rate within the fluctuation range and a power required to heat the maximum water flow rate within the fluctuation range when the detection module 100 detects that the period is less than the first preset value. Wherein the first preset value is 8s.
The problem of aggravated water temperature fluctuation due to thermal load and water flow peak shifting when a fluctuating power load is adopted can be avoided by heating the water in the water heater 600 with a constant power between the maximum power and the minimum power within the fluctuation range.
In this embodiment, the constant power is an average value of the power required to heat the minimum water flow rate and the power required to heat the maximum water flow rate. More specifically, the present embodiment determines whether it is currently in summer or winter by measuring the temperature of the intake water, makes the constant power slightly lower than the average value when it is determined that it is currently in summer by measuring the temperature of the intake water, and makes the constant power slightly higher than the average value if it is determined that it is currently in winter. Thereby further enhancing the user experience.
In this embodiment, the heating control module 300 is further configured to:
when the detection module 100 detects that the period of the inflow fluctuation is greater than the first preset value, the power of the heating device 200 is controlled to be positively correlated with the change of the inflow.
The positive correlation between the power of the heating apparatus 200 and the inlet water flow rate is that when the inlet water flow rate is increased, the heating power is increased, and when the inlet water flow rate is decreased, the heating power is decreased. Can adopt bigger power to heat when discharge increases from this, adopt less power to heat when discharge reduces, slow down from this and even eliminate because of discharge fluctuation causes the undulant condition of temperature, improve user's use and experience.
When the water flow fluctuation period is large, the heating delay is within an acceptable range, and at the moment, the water temperature fluctuation can be better inhibited by adopting a power following mode with better water temperature fluctuation inhibiting capability, so that the user experience is improved.
In this embodiment, a fluctuation suppressing module 400 is further included, and the fluctuation suppressing module 400 is configured to reduce the difference between the minimum water flow rate and the maximum water flow rate within the fluctuation range to within a first preset range before the heating control module 300 changes the power of the heating apparatus 200 to follow the fluctuation of the intake water flow rate.
The first predetermined range is L max -L min Is less than 2L/s. Wherein L is max Maximum water flow, L min Is a minimum water flow.
When the water flow fluctuation is large, the water flow change amplitude is increased, the heating delay is increased, and the risk that the water temperature fluctuation is aggravated due to the thermal load and the water flow peak staggering is increased, so that the risk that the water temperature fluctuation is aggravated due to the heating delay is avoided by reducing the water flow fluctuation.
Preferably, the surge suppressing module 400 includes:
a detecting unit 410, configured to detect whether the difference is within a first preset range;
the valve port 620 adjusting unit 420 is configured to decrease the valve port 620 according to a preset step length, and call the detecting unit 410 to detect whether the difference value is within a first preset range during each adjustment, if the difference value is outside the first preset range, continue decreasing the valve port 620, and if the difference value is within the first preset range, stop the operation of decreasing the valve port 620.
Through the mode of turning down valve port 620 step by step can avoid leading to the problem of the undulant aggravation of discharge because of the torrent change of discharge causes the torrent.
In this embodiment, the system further includes a water inlet control module 500, where the water inlet control module 500 includes:
a determining unit 510, configured to determine whether the water heater 600 is in a pressurization mode;
and a water inlet control unit 520, configured to, when the determining unit 510 determines that the water heater 600 is in the pressurization mode, sequentially adjust the temperature and the water flow rate to make the water inlet state parameter within a second preset range, and, when the determining unit 510 determines that the water heater 600 is not in the pressurization mode, adjust the water flow rate to make the water inlet state parameter within the second preset range.
The reason for adopting this structure is that the risk of not hot is burnt in the pressure boost mode increases, and the sensitivity of user to the temperature is greater than the sensitivity to discharge, consequently preferentially makes the temperature satisfy user's operation requirement, and later readjustment discharge makes discharge can satisfy customer's requirement, can reduce the time that water heater 600 goes out cold water, promotes user's use experience. And under the non-supercharging mode, the risk that water cannot be heated after being boiled does not exist, so that the requirement of a customer can be met only by adjusting the water flow. By adopting different operation logics for different modes, the response speed can be increased, and the water inlet state parameters can reach the preset range more quickly and better.
In this embodiment, the water inlet control unit 520 includes:
the water flow control subunit 521 is used for adjusting the water flow to enable the water flow to be in a second preset range;
and a water temperature control subunit 522 for adjusting the water temperature to a second preset range.
In particular, the second stepThe preset range comprises a preset water flow range and a preset temperature range, the preset water flow range is 8L/s-9L/s, and the preset temperature range is (T) Preset of -5℃)＜T＜(T Preset of +5 ℃), where T is the current temperature, T Preset of Is a preset temperature.
In this embodiment, the water flow control subunit 521 is further configured to make the water temperature always within the second preset range in the process of adjusting the water flow to the second preset range. Which is realized by the following scheme that,
the water inlet control unit 520 further includes a temperature measurement subunit 523, the water flow control subunit 521 is configured to increase the valve port 620 by a specific step length, call the temperature measurement subunit 523 to detect the water temperature during each adjustment, continue the operation of increasing the water flow when the water temperature is within the middle temperature range, and end the operation cycle of the control method of the water heater 600 when the water temperature is outside the middle temperature range, where the middle temperature range is within the preset temperature range. Wherein the intermediate temperature range is T < (T) Preset of -1 ℃), where T is the current temperature, T Preset Is a preset temperature.
Therefore, as long as the water temperature is reduced to be within the middle temperature range, the operation of adjusting the water flow rate is stopped, so that the water temperature is always maintained within the range acceptable by the user in the process of adjusting the water flow rate. The intermediate temperature range is used as the temperature standard for stopping the increasing valve port 620 instead of the preset temperature range, so as to further reduce the fluctuation of the water temperature and improve the user experience.
Example 3
As shown in fig. 3, the present invention further provides a water heater 600, which comprises a water tank 610, a valve port 620 connected to the water tank 610, a heating device 200 for heating the water tank 610, a valve port controller 621 for adjusting the size of the valve port 620, a pressure increasing valve 622 disposed in front of the valve port 620, a memory 630, a processor 640, and a computer program stored in the memory 630 and capable of running on the processor 640.
The memory 630, the valve port controller 621, the heating device 200, and the pressure increasing valve 622 are electrically connected to the processor 640, and the processor 640 can implement the control method of the water heater 600 in embodiment 1 when executing a computer program.
Example 4
The present invention also provides a storage medium having a computer program stored thereon, characterized in that the computer program, when executed by the processor 640, implements the water heater 600 control method in embodiment 1.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of illustration only. Various changes or modifications to these embodiments may be made by those skilled in the art without departing from the principle and spirit of this invention, and these changes and modifications are within the scope of this invention.
Claims (17)
1. A water heater control method is characterized by comprising the following steps:
detecting the period of inflow fluctuation;
when the measured period is less than a first preset value, controlling a heating device to heat at a constant power, wherein the constant power is obtained based on the power required for heating the minimum water flow rate in the fluctuation range and the power required for heating the maximum water flow rate in the fluctuation range;
the method also comprises the following steps before the period of detecting the inflow fluctuation:
adjusting the water inlet state parameter of the water heater to a second preset range, wherein the second preset range comprises a preset water flow range and a preset temperature range;
the step of adjusting the water inlet state parameter of the water heater to a second preset range comprises the following steps:
judging whether the water heater is in a pressurization mode or not;
if the water heater is in a pressurization mode, sequentially adjusting the temperature and the water flow to enable the state parameters of the inlet water to be in the second preset range;
and if the water heater is not in the pressurization mode, adjusting the water flow so as to enable the water inlet state parameter to be in a second preset range.
2. The control method of a water heater according to claim 1, wherein: the constant power is an average of the power required to heat the minimum water flow and the power required to heat the maximum water flow.
3. The control method of a water heater according to claim 1, wherein: the water heater control method further comprises the following steps:
when the measured period of the fluctuation of the inflow water flow is larger than a first preset value, controlling the power of the heating device to be positively correlated with the change of the inflow water flow.
4. The control method of a water heater according to claim 3, wherein: before controlling the power of the heating device to change along with the fluctuation of the inflow water flow, the method also comprises the operation of reducing the difference between the minimum value water flow and the maximum value water flow to a first preset range in a mode of reducing the inflow water flow.
5. The water heater control method as recited in claim 4, wherein the operation of throttling the inlet water flow comprises the steps of:
judging whether the difference value is in a first preset range or not;
if the difference value is out of the first preset range, the valve port is adjusted to be small according to a preset step length, whether the difference value is in the first preset range or not is judged during adjustment each time, if the difference value is out of the first preset range, the valve port is continuously adjusted to be small, and if the difference value is in the first preset range, the operation of the valve port is stopped to be small.
6. The method as claimed in claim 1, wherein the operation of adjusting the water temperature and the water flow rate in sequence to make the state parameter of the inlet water in the second preset range comprises:
and regulating the water flow to make the water temperature within a preset temperature range, and regulating the water flow to be within a preset water flow range on the premise that the water temperature is within the preset temperature range.
7. The water heater control method as recited in claim 6, wherein the step of throttling the large water flow to a predetermined water flow range on the premise that the water temperature is within a second predetermined range comprises:
and adjusting the water flow according to a preset step length, detecting the water temperature during each adjustment, continuing the operation of adjusting the water flow if the water temperature is within the middle temperature range, and ending the operation cycle of the water heater control method if the water temperature is outside the middle temperature range, wherein the middle temperature range is within the preset temperature range.
8. A water heater control system, comprising:
the detection module is used for detecting the period of fluctuation of the inflow water flow;
the heating control module is used for controlling the heating device to heat at constant power when the period measured by the detection module is less than a first preset value, and the constant power is obtained based on the power required for heating the minimum water flow in the fluctuation range and the power required for heating the maximum water flow in the fluctuation range;
a water intake control module, the water intake control module comprising:
the judging unit is used for judging whether the water heater is in a pressurization mode or not;
the control unit of intaking, be used for the judge unit judges when the water heater is in the pressure boost mode, adjust temperature, discharge in proper order so that the state parameter of intaking is in the second and predetermine the scope, and the judge unit judges when the water heater is not in the pressure boost mode, adjust discharge so that the state parameter of intaking is in the second and predetermine the scope.
9. The water heater control system as recited in claim 8, wherein: the constant power is an average of the power required to heat the minimum water flow and the power required to heat the maximum water flow.
10. The water heater control system as recited in claim 8, wherein: the heating control module is further configured to:
and when the period of the fluctuation of the inflow water flow measured by the detection module is greater than a first preset value, controlling the power of the heating device to be positively correlated with the change of the inflow water flow.
11. The water heater control system as recited in claim 8, wherein: the device also comprises a fluctuation suppression module, wherein the fluctuation suppression module is used for reducing the difference value between the minimum value water flow and the maximum value water flow in the fluctuation range to a first preset range before the heating control module enables the power of the heating device to change along with the fluctuation of the water inlet flow.
12. The water heater control system as recited in claim 11, wherein: the surge suppression module includes:
the detection unit is used for detecting whether the difference value is in a first preset range or not;
and the valve port adjusting unit is used for reducing the valve port according to a preset step length, calling the detection unit to detect whether the difference value is in a first preset range during each adjustment, if the difference value is out of the first preset range, continuously reducing the valve port, and if the difference value is in the first preset range, stopping reducing the valve port.
13. The water heater control system as recited in claim 10, wherein: the water inlet control unit comprises:
the water flow control subunit is used for adjusting the water flow so as to enable the water flow to be in a second preset range;
and the water temperature control subunit is used for adjusting the water temperature to enable the water temperature to be in a second preset range.
14. The water heater control system as recited in claim 13, wherein: the water flow control subunit is also used for enabling the water temperature to be always within a second preset range in the process of adjusting the water flow to the second preset range.
15. The water heater control system as recited in claim 14, wherein: the water inlet control unit also comprises a temperature measuring subunit, wherein the water flow control subunit is used for increasing the valve port by a specific step length, detecting the water temperature by calling the temperature measuring subunit during each adjustment, continuously increasing the water flow when the water temperature is in an intermediate temperature range, and ending the operation cycle of the water heater control method when the water temperature is out of the intermediate temperature range, wherein the intermediate temperature range is in the second preset range.
16. A water heater, characterized in that: the water heater control method comprises a water tank, a valve port connected with the water tank, a heating device used for heating the water tank, a valve port controller used for adjusting the size of the valve port, a pressure increasing valve arranged in front of the valve port, a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the memory, the valve port controller, the heating device and the pressure increasing valve are electrically connected with the processor, and the processor can realize the water heater control method according to any one of claims 1-7 when executing the computer program.
17. A storage medium having a computer program stored thereon, characterized in that: the computer program when executed by a processor implements a water heater control method as claimed in any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210122508.3A CN114484891B (en) | 2022-02-09 | 2022-02-09 | Water heater control method and system, water heater and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210122508.3A CN114484891B (en) | 2022-02-09 | 2022-02-09 | Water heater control method and system, water heater and storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114484891A CN114484891A (en) | 2022-05-13 |
| CN114484891B true CN114484891B (en) | 2022-12-27 |
Family
ID=81477979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210122508.3A Active CN114484891B (en) | 2022-02-09 | 2022-02-09 | Water heater control method and system, water heater and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114484891B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54158052A (en) * | 1978-06-02 | 1979-12-13 | Nippon Denso Co Ltd | Hot water type heater |
| CN104676902B (en) * | 2015-03-11 | 2017-06-30 | 广东美的暖通设备有限公司 | Teat pump boiler and its control method |
| WO2017104074A1 (en) * | 2015-12-18 | 2017-06-22 | 三菱電機株式会社 | Water heater and energy management system |
| CN110953728A (en) * | 2019-12-16 | 2020-04-03 | 华帝股份有限公司 | Constant temperature control method of gas water heater |
| CN112539451B (en) * | 2020-12-15 | 2022-01-21 | 珠海格力电器股份有限公司 | Heating heat exchange equipment and control method, device and system thereof |
-
2022
- 2022-02-09 CN CN202210122508.3A patent/CN114484891B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN114484891A (en) | 2022-05-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110398054B (en) | Self-adaptive temperature-control zero-cooling water gas water heater and control method thereof | |
| US10619864B2 (en) | Heat pump water heater and control method thereof | |
| CN110017614B (en) | Control device and control method for zero-cold-water heater | |
| CN104236109A (en) | Control method and control device of constant-temperature gas water heater | |
| CN112082272B (en) | Working method of water heater with zero cold water function | |
| CN107120843B (en) | Control method and control device of water heater, water heater and computer equipment | |
| CN107062621B (en) | Central gas water heater capable of automatically adjusting circulation interval time | |
| CN111121302B (en) | Intelligent pressurization control method for gas water heater | |
| CN106871428A (en) | A kind of antifreeze boosting type gas heater | |
| CN104898738A (en) | Constant temperature heating control method for electronic toilet | |
| CN110986373A (en) | Intelligent supercharged gas water heater and control method | |
| EP3312523A1 (en) | Gas water heater and safety control system and method therefor | |
| CN109539380A (en) | A kind of Teat pump boiler compressor frequency control method | |
| CN114484891B (en) | Water heater control method and system, water heater and storage medium | |
| CN111721003A (en) | Water heater water temperature control method and water heater water temperature control system | |
| CN212029907U (en) | Intelligent supercharging gas water heater | |
| CN106642719A (en) | High-flow water fetching and temperature adjusting method of water heater | |
| CN112728766B (en) | Water storage type water heater, controller and control method thereof | |
| CN111256359A (en) | Water heater system and control method of water heater | |
| WO2023134664A1 (en) | Heating control method and device of water heater, and water heater | |
| CN113847742B (en) | Control method for low-noise operation of water heater | |
| CN109307316B (en) | Energy-saving control method for variable-frequency pump set and heat exchange station | |
| CN113383196A (en) | Method for regulating a circulation pump | |
| CN213334990U (en) | Water heater with zero cold water function | |
| CN116336532A (en) | Method and device for heating by heating equipment and heating equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |