CN117537495A - Electric water heater and supercharging control method thereof - Google Patents
Electric water heater and supercharging control method thereof Download PDFInfo
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- CN117537495A CN117537495A CN202311653247.9A CN202311653247A CN117537495A CN 117537495 A CN117537495 A CN 117537495A CN 202311653247 A CN202311653247 A CN 202311653247A CN 117537495 A CN117537495 A CN 117537495A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 373
- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000005485 electric heating Methods 0.000 claims description 15
- 238000003287 bathing Methods 0.000 claims description 6
- 239000008236 heating water Substances 0.000 claims description 3
- 230000008569 process Effects 0.000 description 8
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 206010014357 Electric shock Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
- F24H9/2021—Storage heaters
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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
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/18—Water-storage heaters
- F24H1/20—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes
- F24H1/201—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply
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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
- F24H15/00—Control of fluid heaters
- F24H15/10—Control of fluid heaters characterised by the purpose of the control
- F24H15/176—Improving or maintaining comfort of users
-
- 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
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/238—Flow rate
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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
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/281—Input from user
-
- 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
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/335—Control of pumps, e.g. on-off control
- F24H15/34—Control of the speed of pumps
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)
- Fluid Mechanics (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
The invention belongs to the field of electric water heaters, and discloses an electric water heater and a supercharging control method thereof. The electric water heater comprises a booster water pump, a flow sensor and a controller, wherein the booster water pump is arranged on a water inlet pipe of the electric water heater, the flow sensor is arranged on the water inlet pipe, and the controller is respectively connected with the booster water pump and the flow sensor, and the method comprises the following steps: the controller receives a boost starting instruction; according to the pressurizing opening instruction, the controller acquires a first flow value of the water inlet pipe detected by the flow sensor; if the first flow value is smaller than a first preset flow threshold value, the controller controls the motor to stop running; if the first flow value is larger than or equal to the first preset flow threshold value and smaller than the second preset flow threshold value, the controller accumulates duration; if the duration time is longer than the preset duration time threshold, the controller controls the motor to operate according to the prestored first motor rotating speed. By adopting the method and the device, the starting and stopping of the booster water pump can be automatically realized according to the water consumption condition of a user.
Description
Technical Field
The invention relates to the technical field of electric water heaters, in particular to an electric water heater and a supercharging control method thereof.
Background
At present, in order to ensure the bath comfort of the electric water heater, the total water outlet flow cannot be too low. For some home environments with low water pressure, in order to improve the water outlet flow, a user needs to additionally install a booster pump on the electric water heater so as to achieve the purpose of boosting.
In the prior art, once the booster pump is started, the booster pump can only operate all the time according to fixed high power, and can not be started and stopped automatically according to the water consumption condition of a user, so that the motor of the booster pump runs idle under fixed high power after the user finishes water consumption, and the motor of the booster pump is easy to burn out and damage the booster pump.
Disclosure of Invention
Accordingly, it is necessary to provide an electric water heater and a boost control method thereof to solve the above-mentioned problems.
In a first aspect, a boost control method of an electric water heater is provided, the electric water heater includes a boost water pump, a flow sensor and a controller, the boost water pump is disposed above a water inlet pipe of the electric water heater, the flow sensor is disposed above the water inlet pipe of the electric water heater, and the controller is respectively connected with the boost water pump and the flow sensor, the method includes:
the controller receives a boosting start instruction of a user;
according to the supercharging starting instruction, the controller obtains a first flow value of a water inlet pipe of the electric water heater detected by the flow sensor;
if the first flow value is smaller than a first preset flow threshold value, the controller controls the motor of the booster water pump to stop running;
if the first flow value is greater than or equal to the first preset flow threshold and is smaller than a second preset flow threshold, the controller accumulates duration;
and if the duration time is longer than the preset duration time threshold, the controller controls the motor of the booster water pump to operate according to the prestored first motor rotating speed.
As an optional implementation manner, if the duration is greater than a preset duration threshold, the controller controls the motor of the booster water pump to operate according to a pre-stored first motor rotation speed, and then the method further includes:
the controller obtains a second flow value of the water inlet pipe detected by the flow sensor;
and if the second flow value is larger than a third preset flow threshold value, the controller controls the rotating speed of the motor of the booster water pump to be reduced from the rotating speed of the first motor to the rotating speed of a second motor which is stored in advance, and controls the motor to operate according to the rotating speed of the second motor.
As an alternative embodiment, the method further comprises:
the controller obtains a third flow value of a water inlet pipe of the electric water heater detected by the flow sensor;
and if the third flow value is smaller than a fourth preset flow threshold value, the controller controls the rotating speed of the motor to rise from the second motor rotating speed to the first motor rotating speed and controls the motor to operate according to the first motor rotating speed, and the fourth preset flow threshold value is smaller than the third preset flow threshold value.
As an alternative embodiment, the method further comprises:
the controller receives a boost closing instruction of the user;
and according to the supercharging closing instruction, the controller controls the motor of the supercharging water pump to stop running.
In a second aspect, there is provided an electric water heater, the electric water heater comprising a booster pump, a flow sensor, a controller and a water inlet pipe, the booster pump and the flow sensor being mounted on the water inlet pipe, the controller being provided with a booster button;
the supercharging button is used for switching between a supercharging mode and a non-supercharging mode;
the booster water pump is used for boosting in the boosting mode;
the flow sensor is used for detecting the water flow on the water inlet pipe;
the controller is respectively connected with the booster water pump and the flow sensor, and controls the booster water pump and the flow sensor to execute the booster control method of the electric water heater according to the first aspect.
As an optional implementation manner, the electric water heater further comprises an electric water heater shell, an internal cold water pipe, a water mixing valve, an internal hot water pipe, a temperature sensor, an electric heating pipe, an inner container and a water outlet, wherein the internal cold water pipe is respectively connected with the water inlet pipe and the water mixing valve, the water mixing valve is respectively connected with the internal hot water pipe and the internal cold water pipe, the temperature sensor is arranged on the electric heating pipe, the electric heating pipe is arranged in the inner container, the water outlet is a water outlet port of the water mixing valve, and the electric heating pipe and the temperature sensor are both connected with the controller;
the inner container is used for storing water of the electric water heater;
the electric heating tube is used for heating water in the inner container;
the temperature sensor is used for detecting the water temperature in the inner container and sending the water temperature to the controller;
the water mixing valve is used for mixing the hot water of the internal hot water pipe with the cold water of the internal cold water pipe and flowing out through the water outlet so as to be used for bathing of a user.
As an alternative embodiment, the water inlet pipe and the internal cold water pipe are connected through a tee joint.
As an alternative embodiment, the booster water pump is powered by a weak current.
In a third aspect, a boost control system of an electric water heater is provided, the boost control system of the electric water heater comprising: the boost control method of the electric water heater according to the first aspect and the electric water heater according to the second aspect.
The application provides an electric water heater and a supercharging control method thereof, and the technical scheme provided by the embodiment of the application at least brings the following beneficial effects: the controller receives a boosting start instruction of a user; according to the supercharging starting instruction, the controller obtains a first flow value of a water inlet pipe of the electric water heater detected by the flow sensor; if the first flow value is smaller than a first preset flow threshold value, the controller controls the motor of the booster water pump to stop running; if the first flow value is greater than or equal to the first preset flow threshold and is smaller than a second preset flow threshold, the controller accumulates duration; and if the duration time is longer than the preset duration time threshold, the controller controls the motor of the booster water pump to operate according to the prestored first motor rotating speed. Thus, after receiving the boost starting instruction, the system enters a boost mode, and then judges whether the boost water pump needs to be started for boosting or not through judging the flow value of the water flow detected by the flow sensor. When the detected flow value of the water flow is smaller than a first preset flow threshold value, the current user does not use water to a large extent, and in order to avoid damage caused by idle running of the motor, the controller controls the motor of the booster water pump to be in a stop running state. When the detected flow value of the water flow is larger than or equal to a first preset flow threshold and smaller than a second preset flow threshold, the current user is in a water consumption state, the duration of the current state is needed to be judged, if the duration is larger than the preset duration threshold, the user is in water consumption, the current water pressure is low, and then the motor of the booster water pump is controlled to boost.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a boost control system of an electric water heater according to an embodiment of the present application;
fig. 2 is a flowchart of a boost control method of an electric water heater according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of an electric water heater according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
The pressurizing control method of the electric water heater can be applied to a pressurizing control system of the electric water heater. As shown in fig. 1, the boost control system of the electric water heater comprises a controller 101, a flow sensor 102 and a boost water pump 103, wherein the controller 101 is respectively connected with the boost water pump 103 and the flow sensor 102.
And a controller 101 for receiving a user's boost start instruction. According to the pressurization start command, a first flow value of a water inlet pipe of the electric water heater detected by the flow sensor 102 is obtained. If the first flow value is smaller than the first preset flow threshold value, the motor of the booster water pump 103 is controlled to stop running. If the first flow value is greater than or equal to the first preset flow threshold value and less than the second preset flow threshold value, accumulating the duration. If the duration time is longer than the preset duration time threshold, controlling the motor of the booster water pump 103 to operate according to the prestored first motor rotating speed.
The flow sensor 102 is configured to detect a water flow rate of a water inlet pipe of the electric water heater, and send the detected first flow rate value to the controller 101.
The booster pump 103 is configured to receive an operation instruction of the motor issued by the controller 101, perform operation according to the first motor rotation speed, and receive a closing instruction of the motor issued by the controller 101, and stop operation.
The following will describe in detail the pressurization control method of an electric water heater provided in the embodiment of the present application with reference to the specific implementation, and fig. 2 is a flowchart of the pressurization control method of an electric water heater provided in the embodiment of the present application, and as shown in fig. 2, specific steps are as follows:
in step 201, the controller receives a boost on command from a user.
In practice, the total water flow cannot be too low in order to ensure bath comfort of the electric water heater. For some home environments with low water pressure, in order to improve the water outlet flow, a user needs to additionally install a booster pump on the electric water heater so as to achieve the purpose of boosting. In the prior art, once the booster pump is started, the booster pump can only operate all the time according to fixed high power, and can not be started and stopped automatically according to the water consumption condition of a user, so that the motor of the booster pump runs idle under fixed high power after the user finishes water consumption, and the motor of the booster pump is easy to burn out and damage the booster pump. According to the electric water heater, the pressurizing button is arranged on the controller, and a user decides whether the electric water heater is in a pressurizing mode or not based on the pressurizing button. After the electric water heater is powered on, the power supply of the booster water pump is turned off by default, and the controller can detect whether a booster on instruction is received or not. And when the user presses the pressurizing button, the controller receives a pressurizing starting instruction of the user, and then the pressurizing mode is entered. Then, in the subsequent step, when the water pump is in a pressurizing mode, the flow sensor detects water flow, and the controller judges whether the pressurizing water pump needs to be started for pressurizing according to the water flow. Therefore, the booster water pump can be started or stopped according to the water consumption condition of a user, and the idling condition of the booster water pump is avoided.
Step 202, according to the boost opening instruction, the controller obtains a first flow value of a water inlet pipe of the electric water heater detected by the flow sensor.
In the implementation, after the boost starting instruction input by the user is obtained, the electric water heater enters a boost mode. The controller immediately enters a water flow signal monitoring state, namely a full-time flow change monitoring state, and receives the water flow of the water inlet pipe of the electric water heater detected by the flow sensor. The flow sensor detects the water flow of the water inlet pipe, the controller judges the water consumption condition of the user according to the water flow detected by the flow sensor, and whether the booster water pump needs to be started for boosting is determined according to the water consumption condition of the user. When the water flow of the water inlet pipe detected by the flow sensor is large, the water flow sensor indicates that a user is in a water using stage, and then the booster water pump is required to be started for boosting, so that the bathing comfort of the user is ensured. When the water flow of the water inlet pipe detected by the flow sensor is smaller, the fact that the user does not use water with larger amplitude at the moment is indicated, and the operation of the booster water pump is not needed. Therefore, according to the pressurization starting instruction, the controller obtains the first flow value of the water inlet pipe of the electric water heater detected by the flow sensor. Wherein the first flow value may be 1L/min.
And 203, if the first flow value is smaller than the first preset flow threshold value, the controller controls the motor of the booster water pump to stop running.
In an implementation, after the controller obtains a first flow value of the water flow detected by the flow sensor, the first flow value is compared with a first preset flow threshold. If the first flow value is smaller than the first preset flow threshold value, which indicates that the current user does not use water to a large extent, in order to avoid idle running of the motor, the controller controls the motor of the booster water pump to stop running, so that the motor of the booster water pump is in a stop running state. If the booster water pump is still running under high power at this time, namely the anhydrous motor idles, the motor is burnt out, and the booster water pump is damaged. Therefore, the comparison and judgment of the first flow value and the first preset flow threshold value ensure that the motor of the booster pump is controlled to idle when no water exists in a pipeline of the electric water heater or the water flow is very small, so that the idle damage of the booster pump is avoided.
In step 204, if the first flow value is greater than or equal to the first preset flow threshold and less than the second preset flow threshold, the controller accumulates the duration.
In an implementation, after the controller obtains a first flow value of the water flow detected by the flow sensor, the first flow value is compared with a first preset flow threshold. If the first flow value is greater than or equal to the first preset flow threshold and less than the second preset flow threshold, the user is indicated to be in a water using stage. In order to ensure that the user is using water continuously and avoid the situation that the user does not fully open the water mixing valve, the duration of the accumulated water flow is larger than or equal to the first preset flow threshold value and smaller than the second preset flow threshold value. If the follow-up discovery duration is longer, then indicate that the user is in continuous water consumption, and current water pressure is little and not the reason that the user did not open the water mixing valve completely, then just can start the booster pump and carry out booster pump water, satisfy user's water demand, improve user's bathing travelling comfort. The second preset flow threshold may be 4L/min to 5L/min.
And 205, if the duration time is longer than the preset duration time threshold, the controller controls the motor of the booster water pump to operate according to the prestored first motor rotating speed.
In implementation, if the subsequent finding duration is longer, the user is continuously using water, and the current water pressure is small and is not used for the reason that the water mixing valve is not completely opened, the booster pump can be started to carry out booster pump water. Therefore, the controller compares the accumulated duration time with a preset duration time threshold in real time, and if the duration time is longer than the preset duration time threshold, the controller controls the motor of the booster water pump to operate according to the prestored first motor rotating speed. The first motor speed may be a preset maximum speed of the booster pump. The preset duration threshold may be 2s to 4s. Therefore, various random factors are filtered through judgment of the second preset flow threshold value and the preset duration threshold value, and the low water pressure judgment accuracy is improved.
Furthermore, after the booster pump performs booster operation, in order to avoid that the pipeline system is damaged due to overlarge water pressure of the pipeline of the electric water heater after the booster pump boosts, the service life of the pipeline system is prolonged, and therefore the water flow of the water inlet pipe after the booster pump is monitored. Therefore, in order to avoid a large water pressure in the pressurized pipe system, the motor rotation speed of the motor of the booster water pump needs to be adjusted. The specific process is as follows:
step one, the controller obtains a second flow value of the water inlet pipe detected by the flow sensor.
In practice, in order to avoid that the water pressure of the pressurized pipeline system is high and the pipeline system of the pressurized water pump is damaged, the water pressure of the pressurized pipeline system needs to be detected. Because the larger the water flow is, the larger the water pressure is, so based on the water flow detected by the flow sensor, whether the motor rotation speed of the motor of the booster water pump needs to be adjusted can be judged. Therefore, the controller is initially required to acquire the second flow value of the inlet pipe detected by the flow sensor.
And step two, if the second flow value is larger than a third preset flow threshold value, the controller controls the rotating speed of the motor of the booster water pump to be reduced from the rotating speed of the first motor to the rotating speed of the second motor which is stored in advance, and controls the motor to operate according to the rotating speed of the second motor.
In the implementation, the controller receives the second flow value sent by the flow sensor, compares the second flow value with a third preset flow threshold, and if the second flow value is greater than the third preset flow threshold, the controller indicates that the water pressure of the pipeline system of the current electric water heater is greater, so that the motor rotation speed of the motor of the booster water pump needs to be reduced in order to ensure that the pipeline system is not damaged. The controller may control the rotational speed of the motor of the booster water pump to decrease from the first motor rotational speed to a pre-stored second motor rotational speed and control the motor to operate at the second motor rotational speed. The third preset flow threshold may be 8L/min to 10L/min, which is determined according to the actual application situation, and is not limited herein. Therefore, the pipeline system is damaged due to overlarge water pressure, and the service life of the pipeline system of the electric water heater is guaranteed.
Furthermore, in the pressurizing process, the pipeline system of the electric water heater is not damaged, the comfortableness of bath water of a user is guaranteed, so that the water flow of the water inlet pipe is required to be detected in real time by the flow sensor to be monitored all the time, the motor rotating speed of the motor of the pressurizing water pump is reduced when the water flow is large, and the motor rotating speed of the motor of the pressurizing water pump is improved when the water flow is small. The specific process is as follows:
and step A, the controller acquires a third flow value of a water inlet pipe of the electric water heater detected by the flow sensor.
In practice, under the condition of avoiding the damage of the pipeline system of the electric water heater caused by excessive water pressure in the pressurizing process, the comfort of bathing of a user needs to be ensured, that is, the water pressure of the pipeline system cannot be too low. Because the smaller the water flow, the lower the water pressure. Therefore, it is possible to determine whether or not the motor rotation speed of the motor of the booster water pump needs to be adjusted based on the water flow rate detected by the flow sensor. Therefore, the controller obtains the third flow value of the water inlet pipe of the electric water heater detected by the flow sensor.
And B, if the third flow value is smaller than a fourth preset flow threshold value, the controller controls the rotating speed of the motor to rise from the second motor rotating speed to the first motor rotating speed, and controls the motor to operate according to the first motor rotating speed, wherein the fourth preset flow threshold value is smaller than the third preset flow threshold value.
In implementation, after the controller obtains the third flow value sent by the flow sensor, the third flow value is compared with a fourth preset flow threshold, if the third flow value is smaller than the fourth preset flow threshold, the water pressure of the current pipeline system of the electric water heater is smaller, and in order to ensure the water consumption requirement of a user, the motor rotation speed of the motor of the booster water pump needs to be increased. Thus, the controller may control the rotational speed of the motor to increase from the second motor rotational speed to the first motor rotational speed and control the motor to operate at the first motor rotational speed. The fourth preset flow threshold is smaller than the third preset flow threshold, so that the pipeline system is not damaged after the motor rotation speed of the motor of the booster water pump is increased. Therefore, the water pressure can be stabilized within a certain range through judging the third preset flow threshold value and the fourth preset flow threshold value and then through controlling the duty ratio of the motor or the rotating speed of the motor of the booster water pump. Meanwhile, the proper water pressure range is adjusted according to the actual needs of users. Therefore, the pipeline system of the electric water heater can be protected, and the bath comfort of a user can be ensured.
Furthermore, after the bath of the user is finished, the booster pump is not needed to boost, so that the booster mode of the electric water heater can be closed, otherwise, the motor of the booster pump can idle, and the motor is burnt out. The specific process is as follows:
and step C, the controller receives a boost closing instruction of a user.
In the implementation, after the water consumption of a user is finished, the water mixing valve of the electric water heater is closed, hot water does not flow out of the water outlet of the electric water heater, cold water does not enter the inner container of the electric water heater from a tap water pipe connected with the water inlet pipe of the electric water heater, and if the booster water pump is continuously operated under high power, namely, the water-free motor idles, the motor is burnt out, and the booster water pump is damaged. Therefore, after the water consumption of the user is finished, the pressurizing button is pressed again, the controller receives a pressurizing closing instruction of the user, and the pressurizing water pump is turned off in the subsequent steps.
And D, controlling the motor of the booster water pump to stop running by the controller according to the booster closing instruction.
In the implementation, after the controller receives the boost closing instruction, the controller controls the motor of the boost water pump to stop running.
The embodiment of the application provides a pressurization control method of an electric water heater, which is characterized in that after a pressurization starting instruction is received, a pressurization mode is entered, and then whether a pressurization water pump needs to be started for pressurization is judged by judging the flow value of water flow detected by a flow sensor. When the detected flow value of the water flow is smaller than a first preset flow threshold value, the current user does not use water to a large extent, and in order to avoid damage caused by idle running of the motor, the controller controls the motor of the booster water pump to be in a stop running state. When the detected flow value of the water flow is larger than or equal to a first preset flow threshold and smaller than a second preset flow threshold, the current user is in a water consumption state, the duration of the current state is needed to be judged, if the duration is larger than the preset duration threshold, the user is in water consumption, the current water pressure is low, and then the motor of the booster water pump is controlled to boost.
It should be understood that, although the steps in the flowchart of fig. 2 are shown in sequence as indicated by the arrows, the steps are not necessarily performed in sequence as indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least a portion of the steps in fig. 2 may include a plurality of steps or stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of the steps or stages is not necessarily sequential, but may be performed in rotation or alternatively with at least a portion of the steps or stages in other steps or other steps.
It should be understood that the same/similar parts of the embodiments of the method described above in this specification may be referred to each other, and each embodiment focuses on differences from other embodiments, and references to descriptions of other method embodiments are only needed.
The embodiment of the application also provides an electric water heater, as shown in fig. 3, the electric water heater comprises a booster water pump 7, a flow sensor 8, a controller 5 and a water inlet pipe 6, wherein the booster water pump 7 and the flow sensor 8 are installed on the water inlet pipe 6, and a booster button is arranged on the controller 5.
A boost button for switching between a boost mode and a non-boost mode. Therefore, a user can conveniently select whether pressurization is needed according to own requirements. After the electric water heater is powered on, the power supply of the booster water pump 7 is turned off by default, and the controller 5 detects whether a switching signal of the booster mode and the non-booster mode is received. The switching signal may be a boost on command or a boost off command.
And a booster pump 7 for boosting in a booster mode. Wherein, the booster water pump 7 is arranged inside the electric water heater shell 1.
And the flow sensor 8 is used for detecting the water flow on the water inlet pipe 6.
The controller 5 is connected to the booster pump 7 and the flow sensor 8, respectively, and controls the booster pump 7 and the flow sensor 8 to execute a booster control method of the electric water heater as shown in fig. 2.
As an alternative implementation mode, the electric water heater further comprises an electric water heater shell 1, an inner cold water pipe 9, a water mixing valve 10, an inner hot water pipe 12, a temperature sensor 4, an electric heating pipe 3, an inner container 2 and a water outlet 11, wherein the inner cold water pipe 9 is respectively connected with the water inlet pipe 6 and the water mixing valve 10, the water mixing valve 10 is respectively connected with the inner hot water pipe 12 and the inner cold water pipe 9, the temperature sensor 4 is arranged on the electric heating pipe 3, the electric heating pipe 3 is arranged in the inner container 2, the water outlet 11 is a water outlet port of the water mixing valve 10, and the electric heating pipe 3 and the temperature sensor 4 are both connected with the controller 5.
And the inner container 2 is used for storing water of the electric water heater.
And the electric heating tube 3 is used for heating water in the inner container 2.
The temperature sensor 4 is used for detecting the water temperature in the liner 2 and sending the water temperature to the controller 5.
The water mixing valve 10 is used for mixing the hot water in the inner hot water pipe 12 and the cold water in the inner cold water pipe 9 and flowing out through the water outlet 11 for bathing of a user.
As an alternative embodiment, the water inlet pipe 6 is connected with the internal cold water pipe 9 through a tee joint. Like this, electric water heater is from taking mixing valve 10, and inlet tube 6 is connected through the tee bend with inside cold water pipe 9, and the design can ensure mixing valve 10's cold and hot water inlet pressure balance like this, can guarantee mixing valve 10's delivery port 11's pressure boost effect better. The water mixing valve 10 may be a mechanical thermostatic valve.
As an alternative embodiment, the booster pump 7 is powered by a weak current. The booster water pump 7 is arranged on the water inlet pipe 6 of the electric water heater, is positioned inside the electric water heater shell 1, and is directly powered by the controller 5, and because the booster water pump is driven by weak current, the electric shock risk can be avoided.
The embodiment of the application provides an electric water heater, so that after receiving a pressurization starting instruction, a pressurization mode is entered, and then whether a pressurization water pump needs to be started for pressurization is judged by judging the flow value of water flow detected by a flow sensor. When the detected flow value of the water flow is smaller than a first preset flow threshold value, the current user does not use water to a large extent, and in order to avoid damage caused by idle running of the motor, the controller controls the motor of the booster water pump to be in a stop running state. When the detected flow value of the water flow is larger than or equal to a first preset flow threshold and smaller than a second preset flow threshold, the current user is in a water consumption state, the duration of the current state is needed to be judged, if the duration is larger than the preset duration threshold, the user is in water consumption, the current water pressure is low, and then the motor of the booster water pump is controlled to boost.
For specific limitations of the electric water heater, reference may be made to the above limitation of the boost control method of the electric water heater, and the description thereof will not be repeated here. The above-described electric water heater may be implemented in whole or in part by software, hardware, or a combination thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
It should be noted that, user information (including but not limited to user equipment information, user personal information, etc.) and data (including but not limited to data for presentation, analyzed data, etc.) referred to in the present application are information and data authorized by the user or sufficiently authorized by each party.
In this specification, each embodiment is described in a related manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for system embodiments, since they are substantially similar to method embodiments, the description is relatively simple, as relevant to see a section of the description of method embodiments.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples merely represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.
Claims (8)
1. The utility model provides a pressurization control method of electric water heater, its characterized in that, electric water heater includes booster pump, flow sensor and controller, the booster pump sets up on the inlet tube of electric water heater, flow sensor sets up on the inlet tube of electric water heater, the controller is connected respectively booster pump with flow sensor, the method includes:
the controller receives a boosting start instruction of a user;
according to the supercharging starting instruction, the controller obtains a first flow value of a water inlet pipe of the electric water heater detected by the flow sensor;
if the first flow value is smaller than a first preset flow threshold value, the controller controls the motor of the booster water pump to stop running;
if the first flow value is greater than or equal to the first preset flow threshold and is smaller than a second preset flow threshold, the controller accumulates duration;
and if the duration time is longer than the preset duration time threshold, the controller controls the motor of the booster water pump to operate according to the prestored first motor rotating speed.
2. The boost control method according to claim 1, wherein if the duration is longer than a preset duration threshold, the controller controls the motor of the boost pump to operate according to a first motor rotation speed stored in advance, and the method further comprises:
the controller obtains a second flow value of the water inlet pipe detected by the flow sensor;
and if the second flow value is larger than a third preset flow threshold value, the controller controls the rotating speed of the motor of the booster water pump to be reduced from the rotating speed of the first motor to the rotating speed of a second motor which is stored in advance, and controls the motor to operate according to the rotating speed of the second motor.
3. The boost control method according to claim 2, characterized in that the method further comprises:
the controller obtains a third flow value of a water inlet pipe of the electric water heater detected by the flow sensor;
and if the third flow value is smaller than a fourth preset flow threshold value, the controller controls the rotating speed of the motor to rise from the second motor rotating speed to the first motor rotating speed and controls the motor to operate according to the first motor rotating speed, and the fourth preset flow threshold value is smaller than the third preset flow threshold value.
4. The boost control method according to claim 1, characterized in that the method further comprises:
the controller receives a boost closing instruction of the user;
and according to the supercharging closing instruction, the controller controls the motor of the supercharging water pump to stop running.
5. The electric water heater is characterized by comprising a booster water pump, a flow sensor, a controller and a water inlet pipe, wherein the booster water pump and the flow sensor are arranged on the water inlet pipe, and a booster button is arranged on the controller;
the supercharging button is used for switching between a supercharging mode and a non-supercharging mode;
the booster water pump is used for boosting in the boosting mode;
the flow sensor is used for detecting the water flow on the water inlet pipe;
the controller is connected to the booster pump and the flow sensor, respectively, and controls the booster pump and the flow sensor to execute the booster control method of the electric water heater according to any one of claims 1 to 4.
6. The electric water heater according to claim 5, further comprising an electric water heater housing, an inner cold water pipe, a mixing valve, an inner hot water pipe, a temperature sensor, an electric heating pipe, an inner container and a water outlet, wherein the inner cold water pipe is respectively connected with the water inlet pipe and the mixing valve, the mixing valve is respectively connected with the inner hot water pipe and the inner cold water pipe, the temperature sensor is arranged on the electric heating pipe, the electric heating pipe is arranged in the inner container, the water outlet is a water outlet port of the mixing valve, and the electric heating pipe and the temperature sensor are both connected with the controller;
the inner container is used for storing water of the electric water heater;
the electric heating tube is used for heating water in the inner container;
the temperature sensor is used for detecting the water temperature in the inner container and sending the water temperature to the controller;
the water mixing valve is used for mixing the hot water of the internal hot water pipe with the cold water of the internal cold water pipe and flowing out through the water outlet so as to be used for bathing of a user.
7. The electric water heater of claim 6, wherein the inlet tube is connected to the inner cold water tube by a tee.
8. The electric water heater of claim 5, wherein the booster water pump is powered by a weak current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202311653247.9A CN117537495A (en) | 2023-12-04 | 2023-12-04 | Electric water heater and supercharging control method thereof |
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| CN202311653247.9A CN117537495A (en) | 2023-12-04 | 2023-12-04 | Electric water heater and supercharging control method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117868263A (en) * | 2024-03-11 | 2024-04-12 | 上海凯源泵业有限公司 | Water supply equipment control method, device, equipment and storage medium |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117868263A (en) * | 2024-03-11 | 2024-04-12 | 上海凯源泵业有限公司 | Water supply equipment control method, device, equipment and storage medium |
| CN117868263B (en) * | 2024-03-11 | 2024-05-28 | 上海凯源泵业有限公司 | Water supply equipment control method, device, equipment and storage medium |
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