CN112577099B - Heating water heater, control method thereof and computer readable storage medium - Google Patents
Heating water heater, control method thereof and computer readable storage medium Download PDFInfo
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- CN112577099B CN112577099B CN201910952541.7A CN201910952541A CN112577099B CN 112577099 B CN112577099 B CN 112577099B CN 201910952541 A CN201910952541 A CN 201910952541A CN 112577099 B CN112577099 B CN 112577099B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1066—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water
- F24D19/1069—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water regulation in function of the temperature of the domestic hot water
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
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Abstract
The invention discloses a heating water heater, a control method of the heating water heater and a computer readable storage medium, wherein the control method of the heating water heater comprises the following steps: determining that a bathroom water signal is received, controlling a heating outlet to be closed, and controlling a heating outlet to be opened; acquiring the current water temperature at the outlet of the bathroom; acquiring the duration of the water temperature of the bathroom outlet in a preset water temperature range; determining that the duration is longer than or equal to a first preset duration and the heat load of the heating water heater is smaller than the rated load, and controlling the opening of the heat supply outlet to be reduced and the opening of the heating outlet to be increased; controlling the heat load of the heating hot water furnace to increase and maintaining the water temperature at the outlet of the bathroom in the preset water temperature range. The technical scheme of the invention can aim to provide domestic hot water and simultaneously reduce the drop of indoor temperature.
Description
Technical Field
The invention relates to the technical field of water heaters, in particular to a control method of a heating water heater, the heating water heater and a computer readable storage medium.
Background
The heating water heater is a thermal device capable of providing heating hot water and domestic hot water. At present, when a user needs to use domestic hot water in a heating mode, the heating water heater which is widely used stops heating, and only the domestic hot water is produced. If the time that the user used life hot water is very long, the heating water heater will not provide the heating for a long time for indoor, can lead to indoor temperature to descend, and then influences user experience.
Disclosure of Invention
The invention mainly aims to provide a control method of a heating water heater, which aims to provide domestic hot water and reduce the drop of indoor temperature.
In order to achieve the above object, the heating water heater provided by the present invention comprises a flow distributor, a heating branch, and a bathroom flow path, wherein the flow distributor has a heating outlet connected to the heating branch and a heating outlet connected to the heating branch, and the bathroom flow path is used for heat exchange with the heating branch;
the control method of the heating water heater provided by the invention comprises the following steps:
determining that a bathroom water signal is received, controlling a heating outlet to be closed and a heating outlet to be opened;
acquiring the current water temperature at the outlet of the bathroom;
acquiring the duration of the water temperature of the bathroom outlet in a preset water temperature range;
determining that the duration is longer than or equal to a first preset duration and the heat load of the heating water heater is smaller than the rated load, and controlling the opening of the heat supply outlet to be reduced and the opening of the heating outlet to be increased;
controlling the heat load of the heating hot water furnace to increase and maintaining the water temperature at the outlet of the bathroom in the preset water temperature range.
Optionally, the determining that the duration is longer than or equal to a first preset duration, and the heat load of the heating water heater is smaller than the rated load, and the controlling the opening of the heat supply outlet to decrease includes:
determining that the duration is longer than or equal to a first preset duration and the heat load of the heating water heater is smaller than the rated load, and controlling the flow distributor to be adjusted towards the heating outlet one by one so that the opening of the heating outlet is gradually reduced and the opening of the heating outlet is gradually increased;
the steps of controlling the heating hot water furnace to increase the heat load and maintaining the water temperature at the bathroom outlet within the preset water temperature range specifically comprise:
determining that the heat load of the heating hot water boiler is increased once when the flow distributor is adjusted towards the heating outlet once, and maintaining the water temperature of the bathroom outlet within a preset water temperature range;
and determining that the heat load of the heating hot water furnace reaches the rated load, and stopping the adjustment of the flow distributor.
Optionally, the heating water heater further comprises a motor connected with the flow distributor;
the motor is a synchronous motor, and the energizing time of the corresponding synchronous motor is t/n when the flow distributor is adjusted towards the heating outlet once; wherein t is the electrifying time required by the synchronous motor to drive the flow distributor to be completely switched between the heating outlet and the heat supply outlet, and n is a constant; alternatively, the first and second liquid crystal display panels may be,
the motor is a stepping motor, and the number of pulses sent to the stepping motor by the flow distributor is N/N every time the flow distributor is adjusted towards the heating outlet; wherein, N is the pulse number that the stepping motor drives the flow distributor and switches over between heating export and heating export completely, and N is the constant.
Optionally, the step of determining that the heating hot water furnace heat load reaches the rated load and stopping the adjustment of the flow distributor further includes:
determining that the water temperature of the bathroom outlet is lower than a preset water temperature range, controlling the heat supply outlet to increase a preset opening degree, and controlling the heating outlet to decrease the preset opening degree;
and adjusting the heat load of the heating water heater, and maintaining the water temperature at the outlet of the bathroom within the preset water temperature range.
Optionally, the step of determining that the water temperature at the bathroom outlet is lower than the preset water temperature range, controlling the heat supply outlet to increase the preset opening degree, and reducing the preset opening degree at the heating outlet specifically includes:
acquiring the adjustment times A of the flow distributor towards a heating outlet;
determining the water temperature of the bathroom outlet in a preset water temperature range, and acquiring the flow q of the bathroom flow path 1 ；
Determining that the water temperature at the outlet of the bathroom is lower than the preset water temperature range, and acquiring the flow q of the bathroom flow path 2 ；
According to A, q 1 And q is 2 Calculating a preset opening degree;
and controlling the heat supply outlet to increase the preset opening degree, and controlling the heating outlet to decrease the preset opening degree.
Optionally, the heating water heater further comprises a motor connected with the flow distributor;
the motor is a synchronous motor, and the electrifying time of the synchronous motor corresponding to the preset opening is Bt/n; or, the motor is a stepping motor, and the number of pulses sent to the stepping motor corresponding to the preset opening degree is BN/n;
wherein B is according to A, q 1 And q is 2 And calculating to obtain n as a constant.
Optionally, said B and A, q 1 And q is 2 The relationship between them is:
B＝(q 2 -q 1 )*(n-A)/q 1 。
optionally, n is greater than or equal to 10 and less than or equal to 20.
Optionally, the control method of the heating water heater further includes the following steps:
acquiring a heating stopping instruction;
determining that the heating outlet and the heat supply outlet are both opened, controlling the heating outlet to be closed, and completely opening the heat supply outlet;
and adjusting the heat load of the heating water heater, and maintaining the water temperature at the outlet of the bathroom within the preset water temperature range.
Optionally, the step of determining that both the heating outlet and the heat supply outlet are opened, and controlling the heating outlet to be closed, and the step of completely opening the heat supply outlet specifically includes:
determining that the heating outlet and the heat supply outlet are both opened, and controlling the flow distributor to gradually adjust towards the heat supply outlet so as to gradually increase the opening of the heat supply outlet and gradually decrease the opening of the heating outlet;
the step of adjusting the heat load of the heating water heater and maintaining the water temperature of the bathroom outlet within a preset water temperature range specifically comprises the following steps:
determining that the heat load of the heating water heater is reduced once every time the flow distributor is adjusted towards the heat supply outlet, and maintaining the water temperature of the bathroom outlet within a preset water temperature range;
and determining that the heating outlet is closed and the heating outlet is completely opened, and stopping the adjustment of the flow distributor.
The invention also provides a heating water heater, which comprises a first heat exchanger, a heating branch, a bathroom flow path and a flow distributor, wherein the bathroom flow path is used for exchanging heat with the heating branch, and the flow distributor is provided with a heating outlet connected with the heating branch, a heating outlet connected with the heating branch and a water inlet connected with the first heat exchanger;
the heating water heater further comprises a memory, a processor and a computer program stored on the memory and executable on the processor, the computer program implementing the steps of the method as described above when executed by the processor.
The invention also provides a computer readable storage medium, wherein the computer readable storage medium stores a heating water heater processing program, and the heating water heater processing program realizes the steps of the control method of the heating water heater when being executed by a controller.
In the invention, when the heating water heater is switched from a single heating state (namely a state that all hot water generated by the heating water heater flows from a heating outlet and is used for indoor heating) to a single heating bathroom water state (a state that all hot water generated by the heating water heater flows from a heating outlet and is used for heating bathroom water), the flow distributor is controlled to switch only after the water temperature of the bathroom outlet is maintained in a preset water temperature range for a period of time and the water temperature of the bathroom outlet is ensured to be stable, so that the opening degree of the heating outlet is increased, and the opening degree of the bathroom outlet is correspondingly reduced. And when adjusting flow distributor, even adjust the aperture of bathroom export and lead to being used for heating bathroom water hot-water reposition of redundant personnel partly for indoor heating, also can be through increasing heating water heater load, with the temperature maintenance of bathroom export in predetermineeing the temperature scope, avoid the temperature of bathroom export to produce too big fluctuation range to guarantee the continuous travelling comfort of user's water. In addition, after the bathroom water signal is received, the system is not always in a state of heating bathroom water only, but after the water temperature at the bathroom outlet is maintained in the preset water temperature range for a period of time, the system enters a state of heating and warming at the same time, the room temperature is not obviously reduced in the process, and the system can be maintained in a comfortable range, so that the influence on a user can be almost ignored.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the embodiments or technical solutions of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic flowchart illustrating a method for controlling a heating water heater according to an embodiment of the present invention;
FIG. 2 is a detailed flowchart of steps S40 and S50 in FIG. 1;
FIG. 3 is another flow chart illustrating a method for controlling the heating water heater of FIG. 1;
FIG. 4 is a detailed flowchart of step S61 in FIG. 3;
FIG. 5 is another flowchart illustrating a method for controlling the heating water heater of FIG. 1;
FIG. 6 is a detailed flowchart of steps S72 and S73 in FIG. 5;
fig. 7 is a schematic structural view of a heating water heater according to the present invention.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a control method of a heating water heater.
In an embodiment of the present invention, the heating water heater includes a flow distributor, a heating branch, a heat supply branch, and a bathroom flow path, the flow distributor has a heating outlet connected to the heating branch and a heat supply outlet connected to the heat supply branch, and the bathroom flow path is used for exchanging heat with the heat supply branch.
As shown in fig. 1, the control method of the heating water heater includes the following steps:
and step S10, determining that the bathroom water signal is received, controlling the heating outlet to be closed and controlling the heating outlet to be opened.
In step S10, the sanitary water signal is a signal indicating that water flows through the sanitary flow path, that is, a user starts using hot water for bathing, hand washing, dish washing, or other cleaning, for example, in some situations, the sanitary flow path is opened, water can flow through the sanitary flow path, and the sanitary water signal is considered to be received. In some situations, the heating water heater has a function of reserving water for the bathroom, when the reserved time is reached, the heating water heater automatically heats the water for the bathroom, the water starts to flow in a bathroom flow path, at the moment, the water is considered to receive a signal of water for the bathroom, the heated water can flow into the water storage tank to be stored, and the user can immediately output hot water when needing to use the water.
In this step, when receiving bathroom water signal, it shows that the user has the demand of using hot water to be used for the bathroom, so for can obtain hot water fast, the control heating export is closed this moment, and the heat supply export is opened, because hot water no longer shunts the heating branch road and is used for indoor heating, all hot water flow equalizes and goes into the heat supply branch road for carry out the heat exchange with bathroom water, thereby can heat bathroom water fast.
It is conceivable to control the heating outlets to be closed and the heating outlets to be opened, in essence, to control the flow divider to be adjusted.
And step S20, acquiring the current water temperature at the outlet of the bathroom.
The bathroom flow path has bathroom entry and bathroom export, and bathroom entry and water source for example running water switch-on, and the bathroom export is then connected gondola water faucet, play tap or water storage tank etc. and the water of bathroom export has realized the heat exchange with the heat supply branch road, through the temperature that detects this bathroom export, can acquire the heat exchange condition of actual water temperature and bathroom flow path and heat supply branch road.
And step S30, acquiring the duration of the water temperature of the bathroom outlet in a preset water temperature range.
The flow distributor closes the heating outlet, and the back is opened to the heat supply outlet, and all hot water all are used for preparing the hot water of bathroom usefulness, but the hot water's that flows out from the bathroom export temperature does not necessarily satisfy user's demand, so the temperature that need use the water end to the user when this adjusts. Particularly, the water temperature of the bathroom outlet can be adjusted to a preset water temperature range, and the user requirements are met. Specific adjustment modes include, but are not limited to, the following: adjusting the heat load of the heating water heater, for example, adjusting the gas inlet amount of a burner when the heating water heater is a gas furnace; under the condition that the heating water heater is an electric water heater, the electric power of the heating module is adjusted. And regulating the flow of the bathroom flow path, and increasing or reducing the flow of the bathroom flow path to maintain the water temperature at the bathroom outlet within a preset water temperature range. A water mixing valve is arranged at the outlet of the bathroom and is connected with a normal-temperature water pipe branch, and the water temperature at the outlet of the bathroom is adjusted by mixing normal-temperature water.
The preset water temperature range in this step is a temperature value pre-stored in the controller, and is usually a value temporarily set by a user or a different value preset by a manufacturer according to different water usage patterns. Within this range, the user can ignore or accept the change in temperature. In some examples, the preset water temperature range refers to a larger range, such as a lower requirement for water temperature when washing dishes or washing tables, floors, etc., and the preset water temperature range refers to ± 5 ℃ or ± 10 ℃ of the set value. In some examples, the preset water temperature range refers to a smaller range, such as when used for bathing or for infants, such users are sensitive to water temperature, and the preset water temperature range refers to ± 2 ℃ of the set value, i.e. the current water temperature at the outlet of the bathroom is guaranteed to fluctuate between the set value plus or minus 2 ℃.
And step S40, determining that the duration is longer than or equal to a first preset duration and the heat load of the heating water heater is smaller than the rated load, and controlling the opening of the heat supply outlet to be reduced and the opening of the heating outlet to be increased.
Because of the influence of factors such as heat load of the heating water heater, heat exchange efficiency, flow velocity in the bathroom flow path, flow velocity of the heat supply branch and the like, the water temperature of the bathroom outlet is not always maintained to be a specific value, so when the water temperature of the bathroom outlet is maintained for a long time in a preset water temperature range, the heat exchange is stable, and the indoor temperature is prevented from continuously falling, so that the flow distributor is required to be controlled to distribute partial hot water for indoor heating. Namely, the duration is determined to be longer than or equal to a first preset duration, the heat load of the heating water heater is smaller than the rated load, the opening degree of the heat supply outlet is controlled to be reduced, the opening degree of the heating outlet is controlled to be increased, and the heat supply outlet and the heating outlet are ensured to be partially opened.
And step S50, controlling the heat load of the heating hot water furnace to increase, and maintaining the water temperature of the bathroom outlet within a preset water temperature range.
Because the heat supply export and the heating export are all partly opened, the hot water of heating is used for indoor heating and heating bathroom water simultaneously, leads to heating bathroom water's heat not enough for avoiding hot water reposition of redundant personnel, so control heating hot water stove heat load increase, maintains the temperature of bathroom export and predetermines the temperature within range.
In the invention, when the heating water heater is switched from a single heating state (namely a state that all hot water generated by the heating water heater flows from a heating outlet and is used for indoor heating) to a single heating bathroom water state (a state that all hot water generated by the heating water heater flows from a heating outlet and is used for heating bathroom water), the flow distributor is controlled to switch only after the water temperature of the bathroom outlet is maintained in a preset water temperature range for a period of time and the water temperature of the bathroom outlet is ensured to be stable, so that the opening degree of the heating outlet is increased, and the opening degree of the bathroom outlet is correspondingly reduced. And when adjusting flow distributor, even if the aperture of adjusting bathroom export leads to being used for heating bathroom water's hot water reposition of redundant personnel partly for indoor heating, also can be through increasing heating water heater load, with the temperature of bathroom export maintain in presetting the temperature scope, avoid the temperature of bathroom export to produce too big fluctuation range to guarantee the continuous travelling comfort of user's water.
Referring to fig. 2, step S40 specifically includes:
and step S41, determining that the duration is longer than or equal to a first preset duration and the heat load of the heating water heater is smaller than the rated load, and controlling the flow distributor to be gradually adjusted towards the heating outlet so as to gradually reduce the opening of the heating outlet and gradually increase the opening of the heating outlet.
If the flow distributor adjusts the heating outlet and the heat supply outlet in place at one time, the opening degree of the heating outlet is increased a lot instantly, the opening degree of the heat supply outlet is reduced a lot instantly, the flow of hot water in the heat supply branch is reduced a lot at a time, the water temperature at the bathroom outlet is easily lower than the preset water temperature range, and the water temperature felt by a user is reduced a lot instantly. Therefore, in order to avoid this phenomenon, in step S41, the flow rate distributor is adjusted in series so that the degree of opening of the heat supply outlet is reduced to a small extent for each adjustment, thereby reducing the fluctuation of the water temperature at the outlet of the bathroom.
Alternatively, the first preset time period is greater than or equal to 0.5 minutes and less than or equal to 3 minutes, for example, the first preset time period may be 0.5min, 1min or 3min, and so on.
Step S50 specifically includes:
and step S51, determining that the heat load of the heating hot water furnace is increased once when the flow distributor is adjusted towards the heating outlet once, and maintaining the water temperature at the outlet of the bathroom within a preset water temperature range.
Flow distributor once adjusting towards the heating export, the aperture of heat supply export must reduce once, the hot water that flows into the heat supply export at every turn reduces for reduce with the hot water of bathroom water heat transfer, then the temperature of bathroom export must descend, so flow distributor once adjusts, the heat load increase that all controls heating water heater is once, adjusts the heat load of heating water heater, maintains bathroom export temperature and predetermines the temperature within range, guarantees the comfort level of water.
In the invention, the flow distributor is gradually adjusted towards the heating outlet, and the opening degree of the closed heat supply outlet is smaller when the heat supply outlet is adjusted each time, so that the reduction range of hot water flowing into the heat supply branch for heating the bathroom water is smaller when the hot water flows into the heat supply branch each time, the water temperature of the bathroom outlet is reduced to a lower degree, the water temperature can still be maintained in the preset water temperature range after the water temperature is reduced, and the water temperature can be maintained in the preset water temperature range at least in a short time after the flow distributor is adjusted, so that the water demand of a user is met. And the heat load of the heating water heater is adjusted once every time the flow distributor is adjusted, so that the water temperature of the bathroom outlet is increased and stabilized within a preset water temperature range, the water temperature of the bathroom outlet can be prevented from falling out of the preset water temperature range, and the continuous comfort of water for users is ensured.
And step S52, determining that the heat load of the heating hot water furnace reaches the rated load, and stopping the adjustment of the flow distributor.
In the process of repeatedly adjusting the heat load of the heating water heater, when the heat load of the heating water heater reaches the rated load, the adjustment of the flow distributor is stopped, the heating water heater works in the state of the rated load, the water temperature of the bathroom outlet is maintained within the preset water temperature range, indoor heating also has the function of hot water, and the heating water heater simultaneously performs indoor heating and provides bathroom water.
The heating water heater also comprises a motor connected with the flow distributor;
in one embodiment, the motor is a synchronous motor, and the energization time of the corresponding synchronous motor is t/n every time the flow distributor is adjusted towards a heating outlet; and t is the electrifying time required by the synchronous motor to drive the flow distributor to be completely switched between the heating outlet and the heat supply outlet. n is a constant number,
in one embodiment, the motor is a stepping motor, and the number of pulses sent to the stepping motor by the flow distributor is N/N every time the flow distributor is adjusted towards the heating outlet; wherein, N is the pulse number that the stepping motor drives the flow distributor and switches over between heating export and heating export completely, and N is the constant.
Optionally, n is greater than or equal to 10 and less than or equal to 20. Specifically, the value of n may be 10, 12, 15, 20, or the like, and the value of n is different, and the opening degree of each decrease of the heat supply outlet is different.
Referring to fig. 3, step S52 is to determine that the heating load of the heating hot water boiler reaches the rated load, and after stopping the adjustment of the flow distributor, the method further includes:
and step S61, determining that the water temperature at the bathroom outlet is lower than a preset water temperature range, controlling the heat supply outlet to increase the preset opening degree, and controlling the heating outlet to decrease the preset opening degree.
Due to the influences of the water flow velocity, the tap water temperature, the heat exchange efficiency, the working time and other factors, after the heating water heater works for a long time, the water temperature of the bathroom outlet may fluctuate, namely, the condition that the water temperature is lower than the preset water temperature range exists, under the condition, the heating outlet and the heat supply outlet are both opened, the heat load of the heating water heater reaches the rated load, the water temperature of the bathroom outlet cannot be increased in a mode of increasing the heat load of the heating water heater, the preset opening degree of the heating outlet is controlled to be increased, the preset opening degree of the heating outlet is reduced, hot water flowing through the heat supply branch is increased, the heat exchange efficiency of bathroom water is improved, the water temperature of the bathroom outlet is increased, and the water temperature of the bathroom outlet is maintained within the preset water temperature range again.
And step S62, adjusting the heat load of the heating water heater, and maintaining the water temperature at the outlet of the bathroom in a preset water temperature range.
Since the hot water flowing through the heat supply branch increases, the heat exchange condition between the heat supply branch and the bathroom flow path is inevitably changed, so that the heat load of the heating water heater needs to be adjusted to maintain the water temperature at the bathroom outlet within the preset water temperature range.
Referring to fig. 4, the step S61 includes determining that the water temperature at the bathroom outlet is lower than the preset water temperature range, and controlling the heating outlet to increase the preset opening degree, wherein the step of decreasing the preset opening degree at the heating outlet includes the following steps:
step S611, obtaining the adjusting times A of the flow distributor towards the heating outlet;
step S612, determining that the water temperature at the outlet of the bathroom is in a preset water temperature range, and acquiring the flow q of the bathroom flow path 1 ；
Step S613, determining that the water temperature at the bathroom outlet is lower than a preset water temperature range, and acquiring the flow q of the bathroom flow path 2 ；
Step S614, according to A, q 1 And q is 2 Calculating a preset opening degree;
and step S615, controlling the heating outlet to increase the preset opening degree, and controlling the heating outlet to decrease the preset opening degree.
The adjustment times A indicate the initial opening of the heat supply outlet before the water temperature at the bathroom outlet fluctuates greatly, so that after the water temperature at the bathroom outlet fluctuates greatly, the increased preset opening of the heat supply outlet is related to the initial opening, and the superposition of the initial opening and the preset opening of the heat supply outlet is necessarily smaller than or equal to the complete opening of the heat supply outlet.
When the flow of the bathroom flow path is suddenly increased, the water temperature at the bathroom outlet is inevitably changed, that is, when the water temperature is lower than the preset water temperature range, the flow q at the current time in the flow path needs to be acquired 2 Flow rate q 2 And flow rate q 1 Indicating that it is the water temperature at the sanitary outlet after the change and the water temperature at the sanitary outlet before the change.
Generally, when the water temperature at the outlet of the bathroom is lower than 2 ℃ which is the lowest value of the preset water temperature range, the flow rate of the bathroom flow path is increased, and at this time, the opening degree of the heat supply outlet needs to be adjusted to increase the preset opening degree.
In this embodiment, when it is determined that the water temperature at the bathroom outlet is lower than the preset water temperature range and the opening of the heat supply outlet needs to be adjusted, the specific adjustment opening is the adjustment frequency a from the flow distributor to the heating outlet, and the flow q of the bathroom flow path when the water temperature at the bathroom outlet is within the preset range 1 When the water temperature at the bathroom outlet is lower than the preset range, the flow q of the bathroom flow path 2 The calculated, i.e. changed, preset opening is closely related to the current opening of the heat supply outlet, the water temperature before and after the change of the sanitary outlet.
In one embodiment, the motor is a synchronous motor, and the energization time period of the synchronous motor corresponding to the preset opening degree is Bt/n. Namely, the water temperature of the bathroom outlet is determined to be lower than the preset water temperature range, and the electrifying time of the synchronous motor is controlled to be Bt/n, so that the heat supply outlet is increased by the preset opening degree, and the heating outlet is decreased by the preset opening degree.
In one embodiment, the motor is a stepping motor, and the number of pulses sent to the stepping motor corresponding to the preset opening is BN/n. Namely, the water temperature of the bathroom outlet is determined to be lower than the preset water temperature range, the number of pulses sent to the stepping motor is controlled to be BN/n, so that the heat supply outlet is increased by the preset opening degree, and the heating outlet is decreased by the preset opening degree. Wherein B is according to A, q 1 And q is 2 And (5) calculating.
Optionally, said B and A, q 1 And q is 2 The relationship between them is: b ═ q 2 -q 1 )*(n-A)/q 1 . Specifically, the preset opening is in direct proportion to the difference value between the flow of the previous time and the flow of the next time, the difference value between the flow of the previous time and the flow of the next time indicates the temperature difference between the previous time and the next time, the larger the temperature difference is, the larger the temperature drop of the bathroom outlet is indicated, the larger the preset opening is needed, the larger the opening of the heat supply outlet is made, so that more hot water acts on the heated bathroom water, and the water temperature at the bathroom outlet rises rapidly.
Referring to fig. 5, the method for controlling a heating water heater further includes the following steps:
step S71, acquiring a heating stopping instruction;
step S72, determining that the heating outlet and the heat supply outlet are both opened, controlling the heating outlet to be closed, and completely opening the heat supply outlet;
and step S73, adjusting the heat load of the heating water heater, and maintaining the water temperature at the outlet of the bathroom in a preset water temperature range.
In this embodiment, when the heating water heater is in the state of heating and heating the bathroom water simultaneously, when the command of stopping heating is sent out due to the overhigh indoor temperature, the heating outlet is controlled to be closed at this moment, and the heating outlet is completely opened, so that all hot water is used for heating the bathroom water in the bathroom flow path, and the heat load of the heating water heater is adjusted at the same time, and the water temperature at the bathroom outlet is maintained within the preset water temperature range.
Referring to fig. 6 in combination, the step S72 of determining that the heating outlet and the heating outlet are both open, and controlling the heating outlet to be closed, wherein the completely opening of the heating outlet specifically includes:
and step S721, determining that the heating outlet and the heat supply outlet are both opened, and controlling the flow distributor to gradually adjust towards the heat supply outlet so that the opening of the heat supply outlet is gradually increased and the opening of the heating outlet is gradually decreased.
Step S73, adjusting the heat load of the heating water heater, and maintaining the water temperature at the outlet of the bathroom within the preset water temperature range specifically includes:
step S731, determining that the heat load of the heating water heater is reduced once every time the flow distributor is adjusted towards the heat supply outlet, and maintaining the water temperature of the bathroom outlet within a preset water temperature range;
step S732, determining that the heating outlet is closed and the heating outlet is completely opened, and stopping the adjustment of the flow distributor.
Also, in this embodiment, since the flow distributor is adjusted towards the heat supply outlet gradually, and the opening degree of the heat supply outlet is smaller each time the opening degree of the heat supply outlet is increased, the increase range of the hot water flowing into the heat supply branch for heating the bathroom water is smaller each time, so the water temperature at the bathroom outlet is increased to a smaller extent, and the water temperature can be maintained within the preset water temperature range even after the increase, and can be maintained within the preset water temperature range at least in a short time after the flow distributor is adjusted, so as to meet the demand of the user for water. And the heat load of the heating water heater is adjusted once every time the flow distributor is adjusted, so that the water temperature of the bathroom outlet is reduced and stabilized within a preset water temperature range, the water temperature of the bathroom outlet can be prevented from exceeding the preset water temperature range, and the continuous comfort of water for users is ensured.
In step S731, the energization time duration of the synchronous motor corresponding to the flow distributor is adjusted to be t/N every time, or the number of pulses sent to the stepping motor corresponding to the flow distributor is adjusted to be N/N every time, which may be referred to the above embodiments specifically, and is not described herein again.
Referring to fig. 7, the present invention further discloses a heating water heater, which includes a first heat exchanger 10, a heating branch 20, a heating branch 30, a bathroom flow path 40, and a flow distributor 50, wherein the bathroom flow path 40 is used for exchanging heat with the heating branch 30, and the flow distributor 50 has a heating outlet connected to the heating branch 20, a heating outlet connected to the heating branch 30, and a water inlet connected to the first heat exchanger 10.
The first heat exchanger 10 may be a finned tube heat exchanger, one end of the heating branch 20 is connected to a heating outlet, the other end of the heating branch 20 is connected to a heat exchange pipeline of the first heat exchanger 10 to form a closed loop, and the heating branch 20 is used for supplying heat to the indoor. One end of the heat supply branch 30 is connected to the heat supply outlet, and the other end of the heat supply branch 30 is connected to the first heat exchanger 10, which also forms a closed loop, and the heat supply branch 30 is used for exchanging heat with the bathroom flow path 40. Optionally, a second heat exchanger 80 is arranged on the heat supply branch 30, the second heat exchanger 80 is a plate heat exchanger, the plate heat exchanger has a first flow channel and a second flow channel which are independent, the heat supply branch 30 is communicated with the first flow channel, the bathroom flow channel 40 is communicated with the second flow channel, and hot water in the first flow channel and bathroom water in the second flow channel exchange heat, so as to heat the bathroom water.
In addition, the first heat exchanger 10 and the second heat exchanger 80 may also be in other forms, which are not described herein. The heating source of the first heat exchanger 10 may be a burner, a hot-resistance wire, an electric heating rod, a condenser, etc.
One end of the bathroom flow path 40 is a bathroom inlet 41, the other end is a bathroom outlet 42, the bathroom inlet 41 is connected to a water source, the bathroom outlet 42 is connected to a water terminal such as a shower head or a faucet, or the bathroom outlet 42 may be connected to a water storage tank. Specifically, the heating water heater may further include a water storage tank, the water storage tank may store water for bathroom, and when the temperature of the water flowing out from the bathroom outlet 42 fluctuates, the water may be mixed with the water originally stored in the water storage tank, so as to reduce fluctuation of the temperature of the water. The water storage tank is also provided with a water outlet which is connected with a water end for users.
The heating water heater further comprises a flow sensor 43, wherein the flow sensor 43 is arranged in the bathroom flow path 40 and is used for detecting the flow of the bathroom flow path 40.
The heating water heater further comprises a first temperature sensor 44, wherein the first temperature sensor 44 is arranged at the sanitary outlet 42 and is used for detecting the temperature of the sanitary outlet 42.
The heating water heater further comprises a second temperature sensor 45, and the second temperature sensor 45 is arranged at the sanitary inlet 41 and is used for detecting the temperature of the sanitary inlet 41.
The heating water heater further includes a third temperature sensor 60, and the third temperature sensor 60 is disposed at an outlet of the first heat exchanger 10, for example, may be disposed at an inlet of the flow distributor 50.
In addition, a water pump 70 is provided on a flow path where the first heat exchanger 10 is located to circulate water, and the flow distributor 50 may be a three-way valve. In fig. 7, solid line arrows represent the flowing direction of the hot water in the heating branch 20 and the heating branch 30, and dotted line arrows represent the flowing direction of the sanitary water in the sanitary flow path 40.
The heating water heater further comprises a memory, a processor and a computer program stored on the memory and executable on the processor, the computer program implementing the steps of the method as described above when executed by the processor.
The invention also provides a computer readable storage medium, wherein a heating water heater processing program is stored on the computer readable storage medium, and when being executed by a controller, the heating water heater processing program realizes the steps of the control method of the heating water heater.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (12)
1. The control method of the heating water heater is characterized in that the heating water heater comprises a flow distributor, a heating branch, a heat supply branch and a bathroom flow path, wherein the flow distributor is provided with a heating outlet connected with the heating branch and a heat supply outlet connected with the heat supply branch, and the bathroom flow path is used for exchanging heat with the heat supply branch;
the control method of the heating water heater comprises the following steps:
determining that a bathroom water signal is received, controlling a heating outlet to be closed and a heating outlet to be opened;
acquiring the current water temperature at the outlet of the bathroom;
acquiring the duration of the water temperature of the bathroom outlet in a preset water temperature range;
determining that the duration is longer than or equal to a first preset duration and the heat load of the heating water heater is smaller than the rated load, and controlling the opening of the heat supply outlet to be reduced and the opening of the heating outlet to be increased;
controlling the heat load of the heating hot water furnace to increase and maintaining the water temperature at the outlet of the bathroom in the preset water temperature range.
2. The method for controlling a heating water heater according to claim 1, wherein the step of determining that the duration is longer than or equal to a first preset duration and the heat load of the heating water heater is less than the rated load, and controlling the opening of the heat supply outlet to decrease and the opening of the heat supply outlet to increase specifically comprises:
determining that the duration is longer than or equal to a first preset duration and the heat load of the heating water heater is smaller than the rated load, and controlling the flow distributor to be adjusted towards the heating outlet one by one so that the opening of the heating outlet is gradually reduced and the opening of the heating outlet is gradually increased;
the steps of controlling the heating hot water furnace to increase the heat load and maintaining the water temperature at the bathroom outlet within the preset water temperature range specifically comprise:
determining that the heat load of the heating hot water furnace is increased once every time the flow distributor is adjusted towards the heating outlet, and maintaining the water temperature at the outlet of the bathroom within a preset water temperature range;
and (4) determining that the heat load of the heating hot water furnace reaches the rated load, and stopping the adjustment of the flow distributor.
3. The control method of the heating water heater according to claim 2, wherein the heating water heater further includes a motor connected to the flow distributor;
the motor is a synchronous motor, and the energizing time of the corresponding synchronous motor is t/n when the flow distributor is adjusted towards the heating outlet once; wherein t is the electrifying time required by the synchronous motor to drive the flow distributor to be completely switched between the heating outlet and the heat supply outlet, and n is a constant; alternatively, the first and second electrodes may be,
the motor is a stepping motor, and the number of pulses sent to the stepping motor by the flow distributor is N/N every time the flow distributor is adjusted towards the heating outlet; n is the number of pulses required by the stepping motor to drive the flow distributor to be completely switched between the heating outlet and the heat supply outlet, and N is a constant.
4. The method for controlling a heating water heater according to claim 2, wherein the step of determining that the heating water heater heat load reaches a rated load and stopping the adjustment of the flow distributor is further followed by:
determining that the water temperature of the bathroom outlet is lower than a preset water temperature range, controlling the heat supply outlet to increase a preset opening degree, and controlling the heating outlet to decrease the preset opening degree;
and adjusting the heat load of the heating water heater, and maintaining the water temperature at the outlet of the bathroom within the preset water temperature range.
5. The method for controlling a heating water heater according to claim 4, wherein the step of determining that the water temperature at the bathroom outlet is lower than a preset water temperature range, and controlling the heating outlet to increase by a preset opening degree, and the step of controlling the heating outlet to decrease by the preset opening degree specifically comprises:
acquiring the adjustment times A of the flow distributor towards a heating outlet;
determining the water temperature of the bathroom outlet in a preset water temperature range, and acquiring the flow q of the bathroom flow path 1 ；
Determining that the water temperature at the outlet of the bathroom is lower than the preset water temperature range, and acquiring the flow q of the bathroom flow path 2 ；
According to A, q 1 And q is 2 Calculating a preset opening degree;
and controlling the heat supply outlet to increase the preset opening degree, and controlling the heating outlet to decrease the preset opening degree.
6. The control method of the heating water heater according to claim 5, wherein the heating water heater further includes a motor connected to the flow distributor;
the motor is a synchronous motor, and the electrifying time of the synchronous motor corresponding to the preset opening is Bt/n; or, the motor is a stepping motor, and the number of pulses sent to the stepping motor corresponding to the preset opening degree is BN/n;
wherein B is according to A, q 1 And q is 2 And calculating to obtain n as a constant.
7. The method for controlling a heating water heater according to claim 6, wherein B and A, q 1 And q is 2 The relationship between them is:
B=(q 2 -q 1 )*(n-A)/q 1 。
8. the control method of a heating water heater according to claim 3, 6 or 7, wherein n is greater than or equal to 10 and less than or equal to 20.
9. The control method of the heating water heater according to claim 1, further comprising the steps of:
acquiring a heating stopping instruction;
determining that the heating outlet and the heat supply outlet are both opened, controlling the heating outlet to be closed, and completely opening the heat supply outlet;
and adjusting the heat load of the heating water heater, and maintaining the water temperature at the outlet of the bathroom within the preset water temperature range.
10. The control method of the heating water heater according to claim 9, wherein the heating water heater is controlled to be operated in a heating mode
Determining that the heating outlet and the heat supply outlet are both opened, controlling the heating outlet to be closed, and completely opening the heat supply outlet specifically comprises the following steps:
determining that the heating outlet and the heat supply outlet are both opened, and controlling the flow distributor to gradually adjust towards the heat supply outlet so as to gradually increase the opening of the heat supply outlet and gradually decrease the opening of the heating outlet;
the step of adjusting the heat load of the heating water heater and maintaining the water temperature at the outlet of the bathroom within the preset water temperature range specifically comprises the following steps:
determining that the heat load of the heating water heater is reduced once every time the flow distributor is adjusted towards the heat supply outlet, and maintaining the water temperature of the bathroom outlet within a preset water temperature range;
and determining that the heating outlet is closed and the heating outlet is completely opened, and stopping the adjustment of the flow distributor.
11. The heating water heater is characterized by comprising a first heat exchanger, a heating branch, a heat supply branch, a bathroom flow path and a flow distributor, wherein the bathroom flow path is used for exchanging heat with the heat supply branch, and the flow distributor is provided with a heating outlet connected with the heating branch, a heat supply outlet connected with the heat supply branch and a water inlet connected with the first heat exchanger;
the heating water heater further comprises a memory, a processor and a computer program stored on the memory and executable on the processor, which computer program when executed by the processor implements the steps of the method according to any one of claims 1 to 10.
12. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a heating water heater processing program, which when executed by a controller, implements the steps of the control method of the heating water heater according to any one of claims 1 to 10.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910952541.7A CN112577099B (en) | 2019-09-30 | 2019-09-30 | Heating water heater, control method thereof and computer readable storage medium |
| EP20873150.5A EP4030114B1 (en) | 2019-09-30 | 2020-06-01 | Heating hot water boiler and control method therefor, and computer readable storage medium |
| PCT/CN2020/093769 WO2021063010A1 (en) | 2019-09-30 | 2020-06-01 | Heating hot water boiler and control method therefor, and computer readable storage medium |
| US17/764,543 US11828475B2 (en) | 2019-09-30 | 2020-06-01 | Heating water heater and control method thereof, and computer-readable storage medium |
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| CN201910952541.7A CN112577099B (en) | 2019-09-30 | 2019-09-30 | Heating water heater, control method thereof and computer readable storage medium |
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| CN112577099A CN112577099A (en) | 2021-03-30 |
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| CN103090547B (en) * | 2013-02-01 | 2015-12-23 | 广东万和新电气股份有限公司 | The control method of gas-heating water heater |
| CN106500301A (en) * | 2016-09-27 | 2017-03-15 | 珠海格力电器股份有限公司 | Wall-hung boiler and its control method |
| CN106369653A (en) * | 2016-10-18 | 2017-02-01 | 艾欧史密斯(中国)热水器有限公司 | Heating hot water device and heating hot water system |
| CN106288344B (en) * | 2016-10-25 | 2018-07-17 | 珠海格力电器股份有限公司 | Gas-heating water heater and the method that heating hot water and bathroom hot water are provided simultaneously |
| CN109489241B (en) * | 2018-11-29 | 2023-11-07 | 艾欧史密斯(中国)热水器有限公司 | Gas water heater and control method thereof |
| CN109506373B (en) * | 2018-12-29 | 2023-05-12 | 广东万和热能科技有限公司 | Toilet and bathroom and heating synchronous operation wall-mounted furnace and control method thereof |
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