Water heater system and operation method thereof

Abstract

The present invention discloses a water heater system and an operation method thereof, wherein the water heater system comprises a water heater and a water outlet valve, wherein a first water flow sensor is provided in the water heater for detecting a first water flow at a water inlet of the water heater; the water outlet valve is provided with a hot water inlet, a cold water inlet and a mixed water outlet; the hot water inlet is connected to the water heater; the hot water inlet and the mixed water outlet are connected via a first branch, and the cold water inlet and the mixed water outlet are connected via a second branch; a third branch is also provided between the cold water inlet and the mixed water outlet, and a control component is provided in the third branch, and the control component is used to adjust the opening of the third branch according to the first water flow. The water heater system of the present invention increases the water output of the water outlet valve by increasing the opening of the third branch when the amount of hot water provided by the water heater is insufficient.

Description

Technical Field

[0001] The invention relates to a water heater system and an operating method thereof. Background Art

[0002] A water heater is a household appliance commonly used in people's daily lives. A water heater is a device that uses various physical principles to increase the temperature of cold water and turn it into hot water within a certain period of time. A water heater usually includes a shell, and components such as a burner and a heat exchanger arranged in the shell. The inlet and outlet pipes arranged on the shell are connected to the heat exchanger. After the cold water entering from the water inlet pipe is heated by the heat exchanger, hot water can be output from the water outlet pipe.

[0003] Due to limitations such as low water pressure in users' homes or small cross-sectional area of ​​angle valves, the water output of household water systems is small, resulting in the inability to meet the large water demands of some users. The current solution is to use booster pumps to force increase the water flow, but the flow is limited under a certain cross-sectional area. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the defect of low water output of water heater system in the prior art and to provide a water heater system and an operation method thereof.

[0005] The present invention solves the above technical problems through the following technical solutions:

[0006] The present invention provides a water heater system, the water heater system comprising:

[0007] A water heater, wherein the water heater is provided with a first water flow sensor, the first water flow sensor being used to detect a first water flow at a water inlet of the water heater;

[0008] A water outlet valve, wherein the water outlet valve is provided with a hot water inlet, a cold water inlet and a mixed water outlet; the hot water inlet is connected to the water heater; the hot water inlet and the mixed water outlet are connected via a first branch, and the cold water inlet and the mixed water outlet are connected via a second branch; a hot water switch is provided in the first branch to control the on-off of the first branch, and a cold water switch is provided in the second branch to control the on-off of the second branch;

[0009] A third branch is further provided between the cold water inlet and the mixed water outlet. A control component is provided in the third branch. The control component is used to adjust the opening of the third branch according to the first water flow detected by the first water flow sensor.

[0010] In the present solution, the above-mentioned structural form is adopted, and the water heater system adds a third branch between the cold water inlet and the mixed water outlet, and sets a control component in the third branch that can adjust the third branch according to the detected first water flow rate through the water heater. Therefore, when the amount of hot water provided by the water heater is insufficient, the opening of the third branch can be increased, and the cross-sectional area of ​​the water outlet can be increased to a certain extent, that is, the water output of the mixed water outlet in the water outlet valve is increased, so that the water output volume remains stable.

[0011] Preferably, a first temperature sensor is further provided in the mixed water outlet, and the first temperature sensor is used to detect the temperature of the mixed water in the mixed water outlet, and the water heater adjusts the outlet water temperature of the water heater according to the detected temperature of the first temperature sensor.

[0012] In the present scheme, the above-mentioned structural form is adopted, and the outlet water temperature of the hot water is adjusted according to the mixed water temperature detected by the first temperature sensor. That is, when the mixed water temperature detected by the first temperature sensor does not reach the preset water temperature, the outlet water temperature of the water heater can be increased by adjusting the heat load of the water heater to increase the water temperature of the first branch, thereby increasing the mixed water temperature so that it can reach the preset water temperature; when the mixed water temperature detected by the first temperature sensor exceeds the preset water temperature, the water heater can be adjusted to adjust the outlet water temperature of the water heater and lower the water temperature of the first branch, thereby lowering the mixed water temperature of the mixed water outlet to the preset water temperature to avoid excessively high outlet water temperature; when the mixed water temperature detected by the first temperature sensor is equal to the preset water temperature, the water heater is controlled to maintain the outlet water temperature, thereby maintaining the mixed water temperature, so that the mixed water temperature is guaranteed while adjusting the water output of the mixed water outlet.

[0013] Preferably, a second water flow sensor is further provided in the mixed water outlet, and the second water flow sensor is used to detect a second water flow in the mixed water outlet, and the control component also adjusts the opening of the third branch according to the second water flow detected by the second water flow sensor.

[0014] In the present solution, the above-mentioned structural form is adopted, and the user can adjust the opening of the third branch through the control component according to the second water flow (the water outlet flow of the mixed water outlet) detected by the second water flow sensor, so that the water outlet of the mixed water outlet reaches the expected flow, that is, when it is detected that the second water flow does not reach the expected flow, the opening of the third branch is increased to increase the second water flow (water outlet); when it is detected that the second water flow exceeds the expected flow, the opening of the third branch is reduced to prevent the second water flow from being too large; when it is detected that the second water flow is equal to the expected flow, the current opening of the third branch can be maintained, thereby ensuring the water outlet of the mixed water outlet.

[0015] Preferably, the water heater is provided with a second temperature sensor, which is used to detect the outlet water temperature of the water heater. The water heater also controls the operation of the burner of the water heater based on the comparison result of the detection temperature of the first temperature sensor and the detection temperature of the second temperature sensor.

[0016] In the present solution, the above-mentioned structural form is adopted to compare the mixed water temperature detected by the first temperature sensor and the outlet water temperature detected by the second temperature sensor to determine whether an abnormal situation occurs and flexibly control whether the water heater is working to avoid energy waste; in addition, the working condition of the water heater can also be determined based on the outlet water temperature detected by the second temperature sensor to facilitate the operation of the burner to adjust the outlet water temperature.

[0017] Preferably, the control component includes a shell and a stepper motor, the stepper motor is at least partially placed in the shell, the shell includes a first opening connected to the cold water inlet and a second opening connected to the mixed water outlet, and the stepper motor is used to adjust the opening of the channel between the first opening and the second opening.

[0018] In this solution, the above-mentioned structural form is adopted, and the opening of the channel between the first opening and the second opening is adjusted by a stepper motor, that is, the opening of the third branch is adjusted, and the operation is stable and the reliability is high.

[0019] Preferably, the control component also includes an electric control board, which is electrically connected to the first water flow sensor, the second water flow sensor and the stepper motor, and controls the output of the stepper motor according to the detection results of the first water flow sensor and the second water flow sensor.

[0020] In this solution, the above-mentioned structural form is adopted, and the output of the stepping motor is controlled by the electric control board to adjust the opening of the third branch, which has a high degree of integration and is easy to control.

[0021] Preferably, the water heater further comprises a control unit, and the control component is electrically connected to the control unit.

[0022] In this solution, the above-mentioned structural form is adopted, and the control unit of the water heater controls the control component, thereby controlling the opening of the third branch, that is, controlling the water outlet valve, which is easy to operate.

[0023] The present invention further provides an operating method of a water heater system. The operating method of the water heater system is performed using the water heater system as described above. The operating method of the water heater system comprises the following steps:

[0024] S1, detecting a first water flow rate at a water inlet of the water heater, and executing step S2 when the first water flow rate is within a first predetermined range;

[0025] S2. Operate the control component to increase the opening of the third branch.

[0026] In this solution, when the measured first water flow rate is within the first predetermined range, the control component for increasing the opening of the third branch is operated according to the detected first water flow rate passing through the water heater. That is, when the amount of hot water provided by the water heater is insufficient, the water output from the mixed water outlet in the water outlet valve is increased by increasing the opening of the third branch.

[0027] Preferably, the mixed water outlet is further provided with a first temperature sensor, the first temperature sensor is used to detect the temperature of the mixed water in the mixed water outlet, and the water heater adjusts the outlet water temperature of the water heater according to the detected temperature of the first temperature sensor;

[0028] In step S1, when the first water flow rate is greater than the first predetermined range, step S3 is performed:

[0029] The mixed water temperature is compared with the preset water temperature. If the mixed water temperature is equal to the preset water temperature, the water heater is controlled to stop adjusting the heat load. If the mixed water temperature is lower than the preset water temperature, the water heater is controlled to continuously adjust the heat load to increase the water outlet temperature until the mixed water temperature is equal to the preset water temperature, and the adjustment is stopped.

[0030] In this solution, the first water flow rate is greater than the first predetermined range, and it is recognized that it is in a large water volume mode. The outlet temperature of the hot water is adjusted according to the mixed water temperature detected by the first temperature sensor, so that the mixed water temperature is guaranteed while adjusting the water output of the mixed water outlet.

[0031] Preferably, in step S1, when the first water flow rate is less than the first predetermined range, step S4 is performed:

[0032] The burner controlling the water heater is not working.

[0033] In this solution, if the first water flow rate is less than the first predetermined range, it is determined that the water flow rate through the water heater is small, and the water heater is controlled not to work to avoid damage to the water heater, or it is identified that the user is using the cold water mode and the burner is controlled not to work.

[0034] Preferably, a second water flow sensor is further provided in the mixed water outlet, and the second water flow sensor is used to detect a second water flow in the mixed water outlet;

[0035] The operation method further comprises the following steps:

[0036] S5: Detecting the second water flow rate, if the second water flow rate is greater than or equal to the first preset value, stopping the operation of the control component and executing step S3;

[0037] The first preset value is greater than or equal to an upper limit of the first predetermined range.

[0038] Preferably, in step S5, the second water flow rate is detected, and if the second water flow rate does not reach the first preset value, step S2 is executed.

[0039] Preferably, the water heater is provided with a second temperature sensor, and the second temperature sensor is used to detect the outlet water temperature of the water heater;

[0040] If the detected outlet water temperature is lower than the detected mixed water temperature, the burner of the water heater is controlled not to operate.

[0041] In this solution, the operation of the water heater is flexibly controlled to avoid wasting energy.

[0042] The positive and progressive effects of the present invention are:

[0043] The water heater system of the present invention adds a third branch between the cold water inlet and the mixed water outlet, and provides a control component in the third branch that can adjust the third branch according to the first water flow rate detected through the water heater. Therefore, when the amount of hot water provided by the water heater is insufficient, the opening of the third branch can be increased to increase the cross-sectional area of ​​the water outlet to a certain extent, that is, increase the water output of the mixed water outlet in the water outlet valve, so that the water output volume remains stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 Schematic diagram of a water heater system according to a preferred embodiment of the present invention.

[0045] Figure 2 It is a schematic structural diagram of a water outlet valve according to a preferred embodiment of the present invention.

[0046] Figure 3 The figure is a flow chart of an operation method of a water heater system according to a preferred embodiment of the present invention.

[0047] Description of reference numerals:

[0048] Water heater 1

[0049] The first water flow sensor 11

[0050] Outlet valve 2

[0051] Hot water inlet 21

[0052] Cold water inlet 22

[0053] Mixed water outlet 23

[0054] First Branch Road 24

[0055] Hot water switch 241

[0056] Second Branch Road 25

[0057] Cold water switch 251

[0058] 26 Third Branch Road

[0059] Control unit 27

[0060] Display 28

[0061] First temperature sensor 3

[0062] Second temperature sensor 4

[0063] Second water flow sensor 5

[0064] Electric control board 6

[0065] Control unit 7

[0066] First water inlet pipe 8

[0067] Second water inlet pipe 9

[0068] Tap water source 10 DETAILED DESCRIPTION

[0069] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the following examples.

[0070] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a water heater system, which includes a water heater 1 and a water outlet valve 2, wherein a first water flow sensor 11 is provided in the water heater 1, and the first water flow sensor 11 is used to detect a first water flow at a water inlet of the water heater 1; the water outlet valve 2 is provided with a hot water inlet 21, a cold water inlet 22 and a mixed water outlet 23, the hot water inlet 21 is connected to the water heater 1, the hot water inlet 21 and the mixed water outlet 23 are connected through a first branch 24, and the cold water inlet 22 and the mixed water outlet 23 are connected through a second branch 25, a hot water switch 241 is provided in the first branch 24 to control the on-off of the first branch 24, and a cold water switch 251 is provided in the second branch 25 to control the on-off of the second branch 25; a third branch 26 is further provided between the cold water inlet 22 and the mixed water outlet 23, and a control component 27 is provided in the third branch 26, and the control component 27 is used to adjust the opening of the third branch 26 according to the first water flow detected by the first water flow sensor 11.

[0071] In this embodiment, hot water flows out of the water heater 1, flows through the hot water inlet 21 and the first branch 24 in sequence to the mixed water outlet 23, and cold water flows through the cold water inlet 22 and the second branch 25 in sequence to the mixed water outlet 23, and the hot water and the cold water converge at the mixed water outlet 23 to premix the cold and hot water. The water heater system adds a third branch 26 between the cold water inlet 22 and the mixed water outlet 23, and sets a control component 27 in the third branch 26 that can adjust the third branch 26 according to the detected first water flow through the water heater 1, so that when the amount of hot water provided by the water heater 1 is insufficient, by increasing the opening of the third branch 26, the cross-sectional area of ​​the water outlet is increased to a certain extent, that is, the water output of the mixed water outlet 23 in the water outlet valve 2 is increased, so that the water output of the water outlet 2 remains stable.

[0072] Specifically, the water heater system includes a first water inlet pipe 8 and a second water inlet pipe 9. The tap water source 10 is divided into two branches to respectively connect the first water inlet pipe 8 and the second water inlet pipe 9. The first water inlet pipe 8 extends from the tap water source 10 to the hot water inlet 21 of the water outlet valve 2. A water heater is installed on the first water inlet pipe 8 to pass hot water into the water outlet valve 2. The second water inlet pipe 8 extends from the tap water source 10 to the cold water inlet 22 to pass cold water into the water outlet valve 2.

[0073] A first temperature sensor 3 is also provided in the mixed water outlet 23 . The first temperature sensor 3 is used to detect the temperature of the mixed water in the mixed water outlet 23 . The water heater 1 adjusts the outlet water temperature of the water heater 1 according to the detected temperature of the first temperature sensor 3 . According to the mixed water temperature detected by the first temperature sensor 3, the outlet water temperature of the hot water 1 is adjusted, that is, when the mixed water temperature detected by the first temperature sensor 3 does not reach the preset water temperature, the outlet water temperature of the water heater 1 can be increased by adjusting the heat load of the water heater 1, specifically adjusting the power of the burner (not shown) of the water heater 1, so as to increase the water temperature of the first branch 24, thereby increasing the mixed water temperature so that it can reach the preset water temperature; when the mixed water temperature detected by the first temperature sensor 3 exceeds the preset water temperature, the water heater 1 can be adjusted to adjust the outlet water temperature of the water heater, and the water temperature of the first branch 24 can be lowered, thereby reducing the mixed water temperature of the mixed water outlet 23 to the preset water temperature to avoid excessively high outlet water temperature; when the mixed water temperature detected by the first temperature sensor 3 is equal to the preset water temperature, the water heater 1 is controlled to maintain the outlet water temperature, thereby maintaining the mixed water temperature, so that the mixed water temperature is guaranteed while adjusting the water output of the mixed water outlet 23.

[0074] The mixed water outlet 23 is also provided with a second water flow sensor 5, which is used to detect the second water flow in the mixed water outlet 23. The control component 27 also adjusts the opening of the third branch 26 according to the second water flow detected by the second water flow sensor 5. The user can adjust the opening of the third branch 26 through the control component 27 according to the second water flow (the water flow of the mixed water outlet 23) detected by the second water flow sensor 5, so that the water output of the mixed water outlet 23 reaches the expected flow, that is, if it is detected that the second water flow does not reach the expected flow, the opening of the third branch 26 is increased to increase the second water flow (water output); if it is detected that the second water flow exceeds the expected flow, the opening of the third branch 26 is reduced to prevent the second water flow from being too large; if it is detected that the second water flow is equal to the expected flow, the current opening of the third branch 26 can be maintained, thereby ensuring the water output of the mixed water outlet 23.

[0075] The water heater 1 is provided with a second temperature sensor 4, which is used to detect the outlet water temperature of the water heater 1. The water heater 1 also controls the operation of the burner of the water heater 1 according to the comparison result of the detection temperature of the first temperature sensor 3 and the detection temperature of the second temperature sensor 4. The mixed water temperature detected by the first temperature sensor 3 and the outlet water temperature detected by the second temperature sensor 4 are compared to determine whether an abnormal situation occurs. For example, in the case of hot weather or water heater failure, the ambient temperature may be greater than the set temperature of the water heater, and the mixed water temperature may be greater than the outlet water temperature. If the detected mixed water temperature is greater than the detected outlet water temperature, the burner of the water heater 1 is controlled not to operate, and the water heater 1 is flexibly controlled to avoid energy waste. In addition, the working condition of the water heater 1 can also be determined according to the outlet water temperature detected by the second temperature sensor 4, so as to facilitate the operation of the burner to adjust the outlet water temperature.

[0076] The control component 27 includes a housing and a stepper motor, the stepper motor is at least partially placed in the housing, the housing includes a first opening connected to the cold water inlet 22 and a second opening connected to the mixed water outlet 23, and the stepper motor is used to adjust the opening of the channel between the first opening and the second opening. The opening of the channel between the first opening and the second opening is adjusted by the stepper motor, that is, the opening of the third branch 26 is adjusted, and the operation is stable and the reliability is high.

[0077] Specifically, a valve is installed between the first opening and the second opening, and a stepper motor controls the valve opening to adjust the opening of the third branch 26. The device and method for adjusting the valve opening using a stepper motor can adopt existing equipment or methods, which are well known to those skilled in the art and will not be repeated here.

[0078] The control component 27 further includes an electric control board 6, which is electrically connected to the first water flow sensor 11, the second water flow sensor 5 and the stepper motor, and controls the output of the stepper motor according to the detection results of the first water flow sensor 11 and the second water flow sensor 5. The output of the stepper motor is controlled by the electric control board 6 to adjust the opening of the third branch 26, with a high degree of integration and easy control.

[0079] In addition, the electric control board 6 is also electrically connected to the first temperature sensor 3 and the second temperature sensor 4, and controls the operation of the burner according to the detection of the first temperature sensor 3 and the second temperature sensor 4, thereby controlling the water outlet temperature of the water heater 1, so as to ensure the mixed water temperature while adjusting the water outlet volume of the mixed water outlet 23.

[0080] The water heater 1 further includes a control unit 7, and the control component 27 is electrically connected to the control unit 7. The control unit 7 of the water heater 1 controls the control component 27, thereby controlling the opening of the third branch 26, that is, controlling the water outlet valve 2, which is convenient for operation. Specifically, the control component 27 is electrically connected to the control unit 7 via WIFI.

[0081] In addition, a temperature display screen 28 is provided on the water outlet valve 2 to display the mixed water temperature detected by the first temperature sensor 3 for the convenience of the user.

[0082] like Figure 3 As shown, an embodiment of the present invention further provides an operating method of a water heater system. The operating method of the water heater system is executed by using the water heater system as described above. The operating method of the water heater system includes the following steps:

[0083] Step 100: Detecting a first water flow rate at a water inlet of the water heater 1,

[0084] When the first water flow rate is within the first predetermined range, step 200 is executed.

[0085] When the first water flow rate is greater than the first predetermined range, step 300 is executed.

[0086] When the first water flow rate is less than the first predetermined range, step 400 is executed.

[0087] Step 200 : operating the control component 27 to increase the opening of the third branch 26 .

[0088] When the measured first water flow rate is within the first predetermined range, the control component for increasing the opening of the third branch 26 is operated according to the detected first water flow rate passing through the water heater 1. That is, when the amount of hot water provided by the water heater 1 is insufficient, the water output of the mixed water outlet 23 in the water outlet valve 2 is increased by increasing the opening of the third branch 26.

[0089] Step 300: Compare the mixed water temperature with the preset water temperature. If the mixed water temperature is equal to the preset water temperature, control the water heater 1 to stop adjusting the heat load. If the mixed water temperature is lower than the preset water temperature, control the water heater 1 to continuously adjust the heat load to increase the outlet water temperature until the mixed water temperature is equal to the preset water temperature, and then stop adjusting.

[0090] The first water flow rate is greater than the first predetermined range, and the large water volume mode is identified. According to the mixed water temperature detected by the first temperature sensor 3, the outlet water temperature of the hot water 1 is adjusted to ensure the mixed water temperature while adjusting the water volume of the mixed water outlet 23.

[0091] Step 400: Control the burner of the water heater 1 to not work.

[0092] The first water flow rate is less than the first predetermined range, and it is determined that the water flow rate through the water heater 1 is small, and the water heater 1 is controlled not to work to avoid damage to the water heater 1, or it is identified that the user uses the cold water mode, and the burner is controlled not to work.

[0093] A second water flow sensor 5 is also provided in the mixed water outlet 23, and the second water flow sensor 5 is used to detect the second water flow in the mixed water outlet 23. The operation method of the water heater system further includes the following steps:

[0094] Step 500: Detect the second water flow rate. If the second water flow rate is greater than or equal to the first preset value, stop the operation of the control component 27, that is, stop increasing the opening of the third branch 26, and execute step 300 to adjust the mixed water temperature to a preset value. If the second water flow rate does not reach the first preset value, execute step 200. The first preset value is greater than or equal to the upper limit of the first preset range, so as to determine whether the required flow rate is reached.

[0095] In step 200, the control component 27 continuously increases the opening of the third branch 26 until the second water flow rate is greater than the first preset value. At this time, by detecting the second water flow rate, the opening of the third branch 26 is stopped from being increased to avoid excessive water output from the water outlet valve 2, which affects the user experience. If the second water flow rate is not greater than the first preset value, the opening of the third branch 26 continues to be increased to maintain the water output of the water outlet valve 2.

[0096] The water heater 1 is provided with a second temperature sensor 4, which is used to detect the outlet water temperature of the water heater 1. In hot weather or when the water heater fails, the ambient temperature may be higher than the set temperature of the water heater, and the mixed water temperature may be higher than the outlet water temperature. If the detected outlet water temperature is lower than the detected mixed water temperature, the burner of the water heater 1 is controlled not to work. The operation of the water heater 1 is flexibly controlled to avoid energy waste.

[0097] An example of the first predetermined range is: 2.5L / min-8L / min, and an example of the first preset value is: 10L / min; substituting this example,

[0098] Step 100: The first water flow rate through the water heater 1 detected by the first water flow sensor 11, if 2.5L / min<first water flow rate<8L / min, execute step 200; the first water flow rate ≥8L / min, execute step 300; the first water flow rate ≤2.5L / min, execute step 400;

[0099] Step 200: operating the control component 27 to increase the opening of the third branch 26;

[0100] Step 300: Compare the mixed water temperature with the preset water temperature. If the mixed water temperature is equal to the preset water temperature, control the water heater 1 to stop adjusting the heat load. If the mixed water temperature is lower than the preset water temperature, control the water heater 1 to continue adjusting the heat load to increase the outlet water temperature until the mixed water temperature is equal to the preset water temperature, and then stop adjusting.

[0101] Step 400: Control the burner of the water heater 1 to not work;

[0102] Step 500 : Detect the second water flow rate. If the second water flow rate is ≥10 L / min, execute step 300 ; if the second water flow rate is less than 10 L / min, execute step 200 .

[0103] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that this is only for illustration and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A water heater system, comprising: A water heater, wherein the water heater is provided with a first water flow sensor, the first water flow sensor being used to detect a first water flow at a water inlet of the water heater; A water outlet valve, wherein the water outlet valve is provided with a hot water inlet, a cold water inlet and a mixed water outlet; the hot water inlet is connected to the water heater; the hot water inlet and the mixed water outlet are connected via a first branch, and the cold water inlet and the mixed water outlet are connected via a second branch; a hot water switch is provided in the first branch to control the on-off of the first branch, and a cold water switch is provided in the second branch to control the on-off of the second branch; It is characterized in that a third branch is further provided between the cold water inlet and the mixed water outlet, and a control component is provided in the third branch, and the control component is used to adjust the opening of the third branch according to the first water flow detected by the first water flow sensor; The mixed water outlet is also provided with a first temperature sensor, the first temperature sensor is used to detect the mixed water temperature in the mixed water outlet, and the water heater adjusts the outlet water temperature of the water heater according to the detected temperature of the first temperature sensor; The mixed water outlet is also provided with a second water flow sensor, the second water flow sensor is used to detect a second water flow in the mixed water outlet, and the control component further adjusts the opening of the third branch according to the second water flow detected by the second water flow sensor; The water heater is provided with a second temperature sensor, the second temperature sensor is used to detect the outlet water temperature of the water heater, and the water heater also controls the operation of the burner of the water heater according to the comparison result of the detection temperature of the first temperature sensor and the detection temperature of the second temperature sensor; The control component includes a housing and a stepper motor, wherein the stepper motor is at least partially disposed in the housing, the housing includes a first opening communicating with the cold water inlet and a second opening communicating with the mixed water outlet, and the stepper motor is used to adjust the opening of the channel between the first opening and the second opening; The control component also includes an electric control board, which is electrically connected to the first water flow sensor, the second water flow sensor and the stepper motor, and controls the output of the stepper motor according to the detection results of the first water flow sensor and the second water flow sensor.

2. The water heater system according to claim 1, characterized in that: The water heater further comprises a control unit, and the control component is electrically connected to the control unit.

3. A method for operating a water heater system, characterized in that: The water heater system according to claim 1 or 2 is used to execute the operating method of the water heater system, and the operating method of the water heater system comprises the following steps: S1, detecting a first water flow rate at a water inlet of the water heater, and executing step S2 when the first water flow rate is within a first predetermined range; S2. Operate the control component to increase the opening of the third branch.

4. The operating method of the water heater system according to claim 3, characterized in that: The mixed water outlet is also provided with a first temperature sensor, the first temperature sensor is used to detect the mixed water temperature in the mixed water outlet, and the water heater adjusts the outlet water temperature of the water heater according to the detected temperature of the first temperature sensor; In step S1, when the first water flow rate is greater than the first predetermined range, step S3 is performed: The mixed water temperature is compared with the preset water temperature. If the mixed water temperature is equal to the preset water temperature, the water heater is controlled to stop adjusting the heat load. If the mixed water temperature is lower than the preset water temperature, the water heater is controlled to continuously adjust the heat load to increase the water outlet temperature until the mixed water temperature is equal to the preset water temperature, and the adjustment is stopped.

5. The method for operating a water heater system according to claim 3, characterized in that: In step S1, when the first water flow rate is less than the first predetermined range, step S4 is performed: The burner controlling the water heater is not working.

6. The method for operating a water heater system according to claim 4, characterized in that: A second water flow sensor is also provided in the mixed water outlet, and the second water flow sensor is used to detect a second water flow in the mixed water outlet; The operation method further comprises the following steps: S5: Detecting the second water flow rate, if the second water flow rate is greater than or equal to the first preset value, stopping the operation of the control component and executing step S3; The first preset value is greater than or equal to an upper limit of the first predetermined range.

7. The operating method of the water heater system according to claim 6, characterized in that: In step S5, the second water flow rate is detected, and if the second water flow rate does not reach the first preset value, step S2 is executed.

8. The method for operating a water heater system according to claim 6, wherein: The water heater is provided with a second temperature sensor, and the second temperature sensor is used to detect the outlet water temperature of the water heater; If the detected outlet water temperature is lower than the detected mixed water temperature, the burner of the water heater is controlled not to operate.

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