CN110107810B - Water outlet temperature control method and device and water supply device - Google Patents
Water outlet temperature control method and device and water supply device Download PDFInfo
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- CN110107810B CN110107810B CN201910381217.4A CN201910381217A CN110107810B CN 110107810 B CN110107810 B CN 110107810B CN 201910381217 A CN201910381217 A CN 201910381217A CN 110107810 B CN110107810 B CN 110107810B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
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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
- F24D17/00—Domestic hot-water supply systems
- F24D17/0015—Domestic hot-water supply systems using solar energy
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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
- F24D17/00—Domestic hot-water supply systems
- F24D17/0026—Domestic hot-water supply systems with conventional heating means
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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
- F24D19/1051—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water
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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
- F24D19/1051—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water
- F24D19/1057—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water the system uses solar energy
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Abstract
The invention provides a water outlet temperature control method, a water outlet temperature control device and a water supply device, belonging to the technical field of water supply, wherein the water supply device is used for mixing hot water and cold water and then outputting the mixed water; comparing the target outlet water temperature, the hot water temperature and the cold water temperature to obtain a first comparison result; and adjusting the water quantity proportion of the hot water and the cold water according to the first comparison result so as to adjust the actual outlet water temperature of the water supply device. The water outlet temperature control device is used for executing the water outlet temperature control method. The outlet water temperature control method, the outlet water temperature control device and the water supply device can stabilize the actual outlet water temperature within a certain range so as to meet the requirements and expectations of users.
Description
Technical Field
The invention relates to the technical field of water supply, in particular to a method and a device for controlling temperature of discharged water and a water supply device.
Background
The existing centralized or solar water supply generally adopts cold water and hot water to supply separately, then water is discharged from a water outlet end after being mixed, and the temperature of the discharged water needs to be regulated by a valve after being sensed by a user, so that the temperature of the discharged water is unstable, and the requirements of the user cannot be met.
Disclosure of Invention
The invention solves the problem that the existing water supply scheme has unstable water outlet temperature and cannot meet the requirements of users.
In order to solve the above problems, the present invention provides a method for controlling temperature of outlet water, which is applied to a water supply device for mixing hot water and cold water and outputting the mixed water, and comprises: receiving a target outlet water temperature input by a user; comparing the target outlet water temperature, the cold water temperature and the hot water temperature to obtain a first comparison result; and adjusting the water quantity proportion of the hot water and the cold water according to the first comparison result so as to adjust the actual outlet water temperature of the water supply device.
The outlet water temperature control method allows a user to define a desired target outlet water temperature, compares the target outlet water temperature with the temperatures of cold water and hot water to obtain a first comparison result, and then adjusts the water quantity proportion of the hot water and the cold water according to the first comparison result so as to adjust the actual outlet water temperature of the water supply device, so that the actual outlet water temperature is as close as possible to or even equal to the target outlet water temperature, and the actual outlet water temperature can be stabilized within a certain range so as to meet the requirements and expectations of the user on the outlet water temperature.
Optionally, the step of adjusting the water quantity ratio of the hot water and the cold water according to the first comparison result to adjust the actual outlet water temperature of the water supply device comprises: and when the target outlet water temperature is less than or equal to the cold water temperature, adjusting the water quantity of the hot water to zero, and outputting the cold water independently.
When the target outlet water temperature is equal to the cold water temperature, the hot water supply is closed, and the cold water is independently supplied, so that the actual outlet water temperature can reach the target outlet water temperature. When the target outlet water temperature is lower than the cold water temperature, no matter how the water quantity proportion of the cold water and the hot water is adjusted, the actual outlet water temperature cannot reach the target outlet water temperature, so that the cold water is output independently, and the actual outlet water temperature is equal to the temperature of the cold water so as to be close to the target outlet water temperature as much as possible, and the condition is suitable for cooling and the like.
Optionally, the step of adjusting the water quantity ratio of the hot water and the cold water according to the first comparison result to adjust the actual outlet water temperature of the water supply device comprises: and when the target outlet water temperature is higher than the hot water temperature, adjusting the water quantity of the cold water to zero, and independently outputting the hot water.
When the target outlet water temperature is higher than the hot water temperature, the actual outlet water temperature cannot reach the target outlet water temperature no matter how the water quantity proportion of the hot water and the cold water is adjusted, so that the hot water is output independently, and the actual outlet water temperature is equal to the temperature of the hot water so as to be as close to the target outlet water temperature as possible.
Optionally, after the step of adjusting the water amount of the cold water to zero and outputting the hot water separately, the method further comprises: after the hot water is independently output for the preset time, the target water outlet temperature and the hot water temperature are compared again to obtain a second comparison result; and adjusting the water quantity ratio of the hot water and the cold water according to the second comparison result.
Optionally, the step of adjusting the water amount ratio of the hot water and the cold water according to the second comparison result includes: if the target water outlet temperature is less than or equal to the hot water temperature and greater than the cold water temperature, calculating a target water quantity proportion of hot water and cold water required for reaching the target water outlet temperature, and adjusting the actual water quantity proportion of the hot water and the cold water to the target water quantity proportion; and if the target outlet water temperature is higher than the hot water temperature, prompting the user that the water temperature is insufficient.
Optionally, the step of adjusting the water quantity ratio of the hot water and the cold water according to the first comparison result to adjust the actual outlet water temperature of the water supply device comprises: and when the target water outlet temperature is less than or equal to the hot water temperature and greater than the cold water temperature, calculating a target water quantity ratio of the hot water and the cold water required for reaching the target water outlet temperature, and adjusting the actual water quantity ratio of the hot water and the cold water to the target water quantity ratio.
When the target outlet water temperature is less than or equal to the hot water temperature and greater than the cold water temperature, the actual outlet water temperature can be made equal to the target outlet water temperature by adjusting the water volume proportion of the hot water and the cold water, at the moment, the actual outlet water temperature of the water supply device can be made equal to the target outlet water temperature by calculating the target water volume proportion of the hot water and the cold water required for reaching the target outlet water temperature and adjusting the actual water volume proportion of the hot water and the cold water to the target water volume proportion, so as to meet the requirements and expectations of users.
Optionally, the step of calculating a target water volume ratio of hot water and cold water required to reach the target outlet water temperature, and adjusting the actual water volume ratio of the hot water and the cold water to the target water volume ratio includes: and calculating target water quantities of cold water and hot water required for reaching the target outlet water temperature, and adjusting actual water quantities of the hot water and the cold water to the respective target water quantities.
Optionally, the step of calculating the target water amounts of the hot water and the cold water required to reach the target outlet water temperature includes:
according to
And Q '═ Q1+ Q2, where Q1 is the target water volume of hot water, Q2 is the target water volume of cold water, Q' is the water output, T is the target water output temperature, T1 is the hot water temperature, and T2 is the cold water temperature.
Optionally, before the step of calculating the target water amounts of the hot water and the cold water required for reaching the target outlet water temperature, the method further comprises: and receiving the water yield input by the user.
The total water yield of the water supply device is defined by a user, so that the functions of the water supply device can be enriched, the water yield of the water supply device can be adjusted by the user according to the needs of the user, the individual requirements of the user on the water yield are met, and the sensitivity of the user is improved.
Optionally, the step of adjusting the actual amounts of hot and cold water to respective target amounts comprises: comparing the target water quantity with the actual water quantity of the hot water, and if the target water quantity and the actual water quantity are equal, not adjusting the water quantity of the hot water; if not, adjusting the actual water quantity of the hot water to the target water quantity of the hot water; comparing the target water quantity with the actual water quantity of the cold water, and if the target water quantity and the actual water quantity are equal, not adjusting the water quantity of the cold water; and if not, adjusting the actual water quantity of the cold water to the target water quantity of the cold water.
The invention also provides a water outlet temperature control device which is applied to a water supply device, wherein the water supply device is used for mixing hot water and cold water and then outputting the mixed water, and comprises a receiving module, a comparison module and a control module, wherein the receiving module is used for receiving the target water outlet temperature input by a user; the comparison module is used for comparing the target outlet water temperature, the hot water temperature and the cold water temperature to obtain a first comparison result; the control module is used for controlling the water quantity proportion of the hot water and the cold water according to the first comparison result so as to adjust the actual outlet water temperature of the water supply device.
The outlet water temperature control device is used for executing the outlet water temperature control method, and can adjust the actual outlet water temperature of the water supply device according to the target outlet water temperature defined by the user, so that the actual outlet water temperature is as close as possible to or even equal to the target outlet water temperature, and the actual outlet water temperature can be stabilized within a certain range to meet the requirement and expectation of the user on the outlet water temperature.
The invention also provides a water supply device, which comprises a hot water flow passage, a first electromagnetic valve, a cold water flow passage, a second electromagnetic valve, a water outlet flow passage and a controller, wherein the hot water flow passage is used for inputting hot water; the controller is simultaneously electrically connected with the first electromagnetic valve and the second electromagnetic valve and used for receiving target water outlet temperature input by a user, comparing the target water outlet temperature, the hot water temperature and the cold water temperature to obtain a first comparison result, and then adjusting the opening degrees of the first electromagnetic valve and the second electromagnetic valve according to the first comparison result, so that the water quantity proportion of the hot water and the cold water is adjusted, and further the actual water outlet temperature of the water supply device is adjusted.
The water supply device allows a user to define a desired target outlet water temperature, the controller compares the target outlet water temperature with the temperatures of hot water and cold water after receiving the target outlet water temperature and obtains a first comparison result, and then adjusts the opening degree of the first electromagnetic valve and the second electromagnetic valve according to the first comparison result, so that the water quantity proportion of the cold water and the hot water is adjusted, and further the actual outlet water temperature of the water supply device is adjusted, so that the actual outlet water temperature is as close as possible to even equal to the target outlet water temperature, and the actual outlet water temperature can be stabilized within a certain range to meet the requirements and expectations of the user on the outlet water temperature.
Optionally, the water supply device further includes a first temperature sensor and a second temperature sensor electrically connected to the controller, respectively, the first temperature sensor is disposed in the hot water flow passage and configured to detect a temperature of the hot water, and the second temperature sensor is disposed in the cold water flow passage and configured to detect a temperature of the cold water.
The first temperature sensor and the second temperature sensor are arranged to enable the controller to monitor the actual temperature of the hot water and the cold water in real time, so that the accuracy of the first comparison result is improved, the accuracy of water quantity proportion adjustment of the hot water and the cold water is improved, and the actual water outlet temperature is close to the target water outlet temperature as much as possible.
Optionally, the water supply device further includes a first flow meter and a second flow meter electrically connected to the controller, respectively, the first flow meter being disposed in the hot water flow passage for detecting the amount of hot water, and the second flow meter being disposed in the cold water flow passage for detecting the amount of cold water.
The first flow meter and the second flow meter are arranged, so that the controller can monitor the actual water quantity proportion of the hot water and the cold water in real time and compare the actual water quantity proportion with the target water quantity proportion to determine whether to adjust the water quantities of the cold water and the hot water, and meanwhile, the accuracy of adjusting the water quantity proportion of the cold water and the hot water can be improved, and the actual outlet water temperature is as close to the target outlet water temperature as possible.
Drawings
Fig. 1 is a schematic structural view of a water supply device provided in an embodiment of the present invention;
FIG. 2 is a schematic diagram of a connection of a controller according to an embodiment of the present invention;
FIG. 3 is a flow chart of a method for controlling temperature of effluent according to an embodiment of the present invention;
FIG. 4 is a flowchart illustrating sub-steps of step S300 in FIG. 3;
FIG. 5 is a flowchart illustrating sub-steps of step S344 of FIG. 4;
FIG. 6 is a flowchart illustrating sub-steps of step S350 in FIG. 5;
FIG. 7 is a flowchart illustrating sub-steps of step S370 in FIG. 6;
fig. 8 is a block diagram of an outlet water temperature control device according to an embodiment of the present invention.
Description of reference numerals:
100-a water supply device; 110-hot water flow path; 112-a first solenoid valve; 114-a first temperature sensor; 116-a first flow meter; 118-a first one-way valve; 120-cold water flow path; 122-a second solenoid valve; 124-a second temperature sensor; 126-a second flow meter; 128-a second one-way valve; 130-a water outlet flow channel; 140-a controller; 150-an input mechanism; 160-a receiving module; 170-a comparison module; 180-control module.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Referring to fig. 1 and 2, the present invention provides a water supply apparatus 100 for mixing hot water and cold water and outputting the mixed water. The water supply device 100 can be applied to various devices related to water supply, such as a water heater, a water dispenser, and the like. The water supply device 100 includes a hot water flow passage 110, a first solenoid valve 112, a cold water flow passage 120, a second solenoid valve 122, a water outlet flow passage 130, and a controller 140. The hot water channel 110 is used for inputting hot water, the first electromagnetic valve 112 is arranged on the hot water channel 110 and used for controlling the water amount of the hot water, the cold water channel 120 is used for inputting cold water, the second electromagnetic valve 122 is arranged on the cold water channel 120 and used for controlling the water amount of the cold water, and the water outlet channel is simultaneously communicated with the cold water channel 120 and the hot water channel 110 and used for mixing the hot water and the cold water and outputting the mixture; the controller 140 is electrically connected to the first solenoid valve 112 and the second solenoid valve 122 at the same time, and is configured to receive a target outlet water temperature input by a user, compare the target outlet water temperature, the hot water temperature, and the cold water temperature to obtain a first comparison result, and adjust the opening degrees of the first solenoid valve 112 and the second solenoid valve 122 according to the first comparison result, so as to adjust the water volume ratio of the hot water and the cold water, and further adjust the actual outlet water temperature of the water supply apparatus 100.
One end of the hot water flow passage 110 is communicated with a hot water source, the hot water source can supply water for solar energy or centralized water, the other end is communicated with the water outlet flow passage 130, one end of the cold water flow passage 120 is communicated with a cold water source, the cold water source can be common tap water and the like, the other end is also communicated with the water outlet flow passage 130, and hot water input by the hot water flow passage 110 and cold water input by the cold water flow passage 120 can be mixed in the water outlet flow passage 130 and then output.
In this embodiment, the water supply device 100 further includes a first temperature sensor 114 and a second temperature sensor 124. The first temperature sensor 114 and the second temperature sensor 124 are electrically connected to the controller 140, respectively, the first temperature sensor 114 is disposed at the hot water flow passage 110 to detect the temperature of the hot water and transmit the detection result to the controller 140, and the second temperature sensor 124 is disposed at the cold water flow passage 120 to detect the temperature of the cold water and transmit the detection result to the controller 140.
The first temperature sensor 114 and the second temperature sensor 124 are provided to allow the controller 140 to monitor the actual temperatures of the hot water and the cold water in real time, thereby improving the accuracy of the first comparison result and thus the accuracy of the quantity ratio adjustment of the hot water and the cold water, so that the actual outlet water temperature of the water supply device 100 is as close as possible to the target outlet water temperature.
It should be noted that, in other embodiments, the first temperature sensor 114 and the second temperature sensor 124 may not be provided in the water supply device 100, for example, when the hot water provided by the hot water source and the cold water provided by the cold water source are both at a known constant temperature, the temperature of the hot water and the temperature of the cold water may not be detected by providing the temperature sensors.
In this embodiment, the water supply device 100 further includes a first flow meter 116 and a second flow meter 126, the first flow meter 116 and the second flow meter 126 are electrically connected to the controller 140, respectively, the first flow meter 116 is disposed in the hot water flow passage 110 for detecting the amount of hot water and transmitting the detection result to the controller 140, and the second flow meter 126 is disposed in the cold water flow passage 120 for detecting the amount of cold water and transmitting the detection result to the controller 140.
The first flow meter 116 and the second flow meter 126 are arranged such that the controller 140 can monitor the actual water volume ratio of the hot water and the cold water in real time and compare the actual water volume ratio with the target water volume ratio to determine whether to adjust the water volume of the hot water and the cold water, and can also improve the accuracy of the adjustment of the ratio of the cold water to the hot water volume ratio such that the actual outlet water temperature is as close as possible to the target outlet water temperature.
In other embodiments, the flow meter may not be provided in the water supply device 100, and the controller 140 directly adjusts the opening ratio of the first solenoid valve 112 and the second solenoid valve 122 according to the first comparison result, so as to adjust the actual water quantity ratio of the cold water and the hot water, and further adjust the actual outlet water temperature to be as close to the target outlet water temperature as possible.
The water supply device 100 further includes a first check valve 118 and a second check valve 128, the first check valve 118 is disposed at a position of the hot water flow channel 110 close to the water outlet flow channel 130, and is used for enabling hot water to flow from the hot water flow channel 110 to the water outlet flow channel 130 only, and preventing water in the water outlet flow channel 130 from flowing back to the hot water flow channel 110, the second check valve 128 is disposed at a position of the cold water flow channel 120 close to the water outlet flow channel 130, and is used for enabling cold water to flow from the cold water flow channel 120 to the water outlet flow channel 130 only, and preventing water in the water outlet flow channel 130 from flowing back to. The first check valve 118 and the second check valve 128 are provided to prevent hot and cold water in the outlet flow passage 130 from being flushed back into the hot and cold water flow passages 110 and 120, thereby ensuring the normal operation of the water supply device 100.
The water supply device 100 further includes an input mechanism 150, the input mechanism 150 is electrically connected to the controller 140, and is used for a user to input a target outlet water temperature and send the target outlet water temperature to the controller 140, in this embodiment, the input mechanism 150 is a touch screen. The touch screen can be used for a user to input a target outlet water temperature, and can also display the temperature and flow of cold water, the temperature and flow of hot water and the like. In other embodiments, the input mechanism 150 may be a key or the like.
The water supply device 100 allows a user to define a desired target outlet water temperature, the controller 140 compares the target outlet water temperature with the temperatures of cold water and hot water after receiving the target outlet water temperature to obtain a first comparison result, and then adjusts the opening degrees of the first electromagnetic valve 112 and the second electromagnetic valve 122 according to the first comparison result, so as to adjust the water quantity ratio of the hot water and the cold water, and further adjust the actual outlet water temperature of the water supply device 100, so that the actual outlet water temperature is as close as possible to or even equal to the target outlet water temperature, and thus the actual outlet water temperature can be stabilized within a certain range to meet the demand and expectation of the user for the outlet water temperature.
Referring to fig. 3, the present invention further provides a method for controlling the temperature of the discharged water, which can be applied to the controller 140 of the water supply apparatus 100. The outlet water temperature control method comprises the following steps:
and S100, receiving the target outlet water temperature input by the user.
The target outlet water temperature input by the user may be completely defined by the user, or a plurality of reference temperatures may be provided by the water supply device 100 for the user to select.
Step S200: and comparing the target outlet water temperature, the cold water temperature and the hot water temperature to obtain a first comparison result.
In the present embodiment, the hot water temperature is detected by the first temperature sensor 114, and the cold water temperature is detected by the second temperature sensor 124. In other embodiments, when the water supply device 100 is not provided with a temperature sensor, the cold water temperature and the hot water temperature may be constant temperatures.
Step S300: and adjusting the water quantity proportion of the hot water and the cold water according to the first comparison result to adjust the actual outlet water temperature of the water supply device 100.
Referring to fig. 4, the step of adjusting the water quantity ratio of the hot water and the cold water according to the first comparison result to adjust the actual outlet water temperature of the water supply device 100 includes:
step S310: and judging whether the target outlet water temperature is less than or equal to the cold water temperature.
If yes, namely the target outlet water temperature is less than or equal to the cold water temperature, step S320 is executed, the water quantity of the hot water is adjusted to zero, and the cold water is output separately. When the target outlet water temperature is equal to the cold water temperature, the hot water supply is closed, and the cold water is independently supplied, so that the actual outlet water temperature can reach the target outlet water temperature. When the target outlet water temperature is lower than the cold water temperature, no matter how the water quantity proportion of the cold water and the hot water is adjusted, the actual outlet water temperature cannot reach the target outlet water temperature, so that the cold water is output independently, and the actual outlet water temperature is equal to the temperature of the cold water so as to be as close to the target outlet water temperature as possible. If not, namely the target outlet water temperature is higher than the cold water temperature, the step S330 is executed to judge whether the target outlet water temperature is higher than the hot water temperature.
If yes, namely the target outlet water temperature is higher than the hot water temperature, step S340 is executed, the water quantity of the cold water is adjusted to zero, and the hot water is output independently. When the target outlet water temperature is higher than the hot water temperature, no matter how to adjust the water quantity proportion of the cold water and the hot water, the actual outlet water temperature cannot reach the target outlet water temperature, so that the hot water is output independently, and the actual outlet water temperature is equal to the temperature of the hot water so as to be as close to the target outlet water temperature as possible.
Further, after the step of adjusting the water amount of the cold water to zero and outputting the hot water separately, the method further comprises the following steps:
step S342: and after the hot water is output for the preset time independently, comparing the target outlet water temperature with the hot water temperature again to obtain a second comparison result. The preset time can be set as required, and in this embodiment, the preset time is 30S. In other embodiments, the preset time may be 1 min.
Step S344: and adjusting the water quantity ratio of the hot water and the cold water according to the second comparison result.
Further, referring to fig. 5, the step of adjusting the water quantity ratio of the hot water and the cold water according to the second comparison result includes: and step S346, judging whether the target outlet water temperature is higher than the hot water temperature again, if so, executing step S348, and prompting the user that the water temperature is insufficient. If not, namely the target outlet water temperature is less than or equal to the hot water temperature, the step S350 is executed, namely the target water quantity proportion of the cold water and the hot water required for reaching the target outlet water temperature is calculated, and the actual water quantity proportion of the hot water and the cold water is adjusted to the target water quantity proportion.
The above steps are performed with the goal that there may be two situations where the target outlet water temperature is greater than the hot water temperature. The first case is that the target outlet water temperature is actually less than or equal to the hot water temperature, but due to the detection position of the first temperature sensor 114, there is a temperature difference between different positions of the hot water in the hot water flow passage 110, and the like, in the initial stage of the single output of the hot water, the hot water temperature detected by the first temperature sensor 114 is relatively low with respect to the accurate hot water temperature, and after the single output of the hot water continues for a period of time, the hot water temperature detected by the first temperature sensor 114 will approach the accurate hot water temperature infinitely, and the target outlet water temperature will be less than or equal to the hot water temperature, and at this time, the target water quantity ratio of the cold water and the hot water required to reach the target outlet water temperature is calculated, and the actual water quantity ratio of the hot water and the cold water is adjusted to the target water quantity ratio, so that the actual.
The second situation is that the target outlet water temperature is actually higher than the hot water temperature, and then when the hot water is output alone for a while, the hot water temperature detected by the first temperature sensor 114 is still lower than the target outlet water temperature, which indicates that the set target outlet water temperature is too high, the water supply device 100 cannot provide water with a temperature meeting the user's requirements and expectations, and at this time, the water temperature is not enough for prompting the user, and the prompting modes are many, and the alarm can be provided through the touch screen display or the alarm.
If the result of the step S330 is negative, that is, the target outlet water temperature is less than or equal to the hot water temperature, the step S350 is directly executed, namely, the target water volume proportion of the hot water and the cold water required for reaching the target outlet water temperature is calculated, and the actual water volume proportion of the hot water and the cold water is adjusted to the target water volume proportion.
Further, referring to fig. 6, the step of calculating the target water volume ratio of the hot water and the cold water required to reach the target outlet water temperature and adjusting the actual water volume ratio of the hot water and the cold water to the target water volume ratio includes:
step S360, calculating target water quantities of cold water and hot water required for reaching the target outlet water temperature, and step S370, adjusting actual water quantities of the hot water and the cold water to the respective target water quantities.
More closely, the step of calculating the target amounts of cold water and hot water required to reach the target outlet water temperature includes the steps of:
according to
And calculating target water amounts of cold water and hot water by two formulas of Q '1 + Q2, wherein Q1 is the target water amount of hot water, Q2 is the target water amount of cold water, Q' is the water yield, T is the target water outlet temperature, T1 is the hot water temperature, and T2 is the cold water temperature.
In particular, the formula
The method is jointly deduced from two formulas of CM1(T1-T) ═ CM2(T-T2) and M ═ rho Q, wherein C is the specific heat capacity of water, M1 is the mass of hot water, and M2 is the mass of cold water; ρ is the density of water; q is the water volume, T is the target outlet water temperature, T1 is the hot water temperature, and T2 is the cold water temperature.
In addition, in this embodiment, the water output Q' is self-defined by the user while self-defining the target water output temperature. That is, step S302 is further included before the step of calculating the target amounts of cold water and hot water required to reach the target outlet water temperature: and receiving the water yield input by the user. The total water yield of the water supply device 100 is defined by a user, so that the function of the water outlet temperature control method can be enriched, the user can adjust different water yields according to the self requirement, the individual requirement of the user on the water yield is met, and the user experience is improved. In other embodiments, the water output Q' may also be a fixed preset value, which cannot be defined and adjusted by the user.
Referring to fig. 7, step S370 specifically includes: step S372: comparing the target water quantity and the actual water quantity of the hot water and the target water quantity and the actual water quantity of the cold water; and step S374: if the target water quantity of the hot water is equal to the actual water quantity, the water quantity of the hot water is not adjusted; if not, adjusting the actual water quantity of the hot water to the target water quantity; if the target water quantity of the cold water is equal to the actual water quantity, the water quantity of the cold water is not adjusted; and if not, adjusting the actual water quantity of the cold water to the target water quantity.
Specifically, if the actual amount of hot water is greater than the target amount of water, the opening degree of the first solenoid valve 112 is decreased to decrease the actual amount of hot water to the target amount of water; if the actual amount of hot water is less than the target amount of water, increasing the opening degree of the first solenoid valve 112 to increase the actual amount of hot water to increase the actual amount of water to the target amount of water; if the actual water amount of the cold water is greater than the target water amount, the opening degree of the second solenoid valve 122 is decreased to decrease the actual water amount of the cold water to decrease the actual water amount to the target water amount; if the actual amount of cold water is less than the target amount of water, the opening degree of the second solenoid valve 122 is increased to increase the actual amount of cold water to the target amount of water.
In addition, it should be noted that, when the water supply apparatus 100 is not provided with two flow meters, the actual water amount and the target water amount do not need to be compared, and the opening degrees of the first electromagnetic valve 112 and the second electromagnetic valve 122 are directly adjusted, so that the actual water amounts of the cold water and the hot water reach the corresponding target water amounts.
When the target outlet water temperature is higher than the cold water temperature and lower than or equal to the hot water temperature, it is indicated that the actual outlet water temperature can be equal to the target outlet water temperature by adjusting the water volume ratio of the cold water to the hot water, at this time, the actual outlet water temperature of the water supply device 100 can be equal to the target outlet water temperature by calculating the target water volume ratio of the hot water to the cold water required for reaching the target outlet water temperature and adjusting the actual water volume ratio of the hot water to the cold water to the target water volume ratio, so as to meet the requirements and expectations of users.
The outlet water temperature control method allows a user to define a desired target outlet water temperature, compares the target outlet water temperature with the temperatures of hot water and cold water to obtain a first comparison result, and then adjusts the water volume proportion of the cold water and the hot water according to the first comparison result so as to adjust the actual outlet water temperature of the water supply device 100, so that the actual outlet water temperature is as close as possible to or even equal to the target outlet water temperature, and the actual outlet water temperature can be stabilized within a certain range so as to meet the requirements and expectations of the user on the outlet water temperature.
Referring to fig. 8, the present invention further provides a water outlet temperature control device, which can be applied to the controller 140 of the water supply device 100, and includes a receiving module 160, a comparing module 170, and a control module 180.
The receiving module 160 is configured to receive a target outlet water temperature input by a user. In this embodiment, the receiving module 160 is configured to execute step S100.
The comparison module 170 is configured to compare the target outlet water temperature, the hot water temperature, and the cold water temperature to obtain a first comparison result. In this embodiment, the comparison module 170 is configured to execute S200.
The control module 180 is configured to receive a target outlet water temperature input by a user, compare the target outlet water temperature, the hot water temperature, and the cold water temperature to obtain a first comparison result, and then control a water volume ratio of the hot water and the cold water according to the first comparison result, so as to adjust an actual outlet water temperature of the water supply apparatus 100. In this embodiment, the control module 180 is configured to execute step S300.
The outlet water temperature control device is used for executing the outlet water temperature control method, and can adjust the actual outlet water temperature of the water supply device 100 according to the target outlet water temperature defined by the user, so that the actual outlet water temperature is as close as possible to or even equal to the target outlet water temperature, and the actual outlet water temperature can be stabilized within a certain range to meet the requirements and expectations of the user on the outlet water temperature.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The apparatus embodiments described above are merely illustrative, and for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, each functional module in the embodiments of the present invention may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (12)
1. A method for controlling the temperature of outlet water is applied to a water supply device (100), the water supply device (100) is used for mixing hot water and cold water and outputting the mixed water, and the method is characterized by comprising the following steps:
receiving a target outlet water temperature input by a user;
comparing the target outlet water temperature, the hot water temperature and the cold water temperature to obtain a first comparison result;
the step of adjusting the water volume ratio of the hot water to the cold water according to the first comparison result to adjust the actual outlet water temperature of the water supply device, and the step of adjusting the water volume ratio of the hot water to the cold water according to the first comparison result to adjust the actual outlet water temperature of the water supply device comprises the following steps:
when the target outlet water temperature is higher than the hot water temperature, adjusting the water volume of the cold water to zero, and independently outputting the hot water; after the hot water is independently output for a preset time, comparing the temperature of the hot water with the target water outlet temperature again to obtain a second comparison result; and adjusting the water quantity ratio of the hot water and the cold water according to the second comparison result.
2. The method according to claim 1, wherein the step of adjusting the water volume ratio of the hot water and the cold water according to the first comparison result to adjust the actual outlet water temperature of the water supply device comprises:
and when the target outlet water temperature is less than or equal to the cold water temperature, adjusting the water quantity of the hot water to zero, and outputting the cold water independently.
3. The method of claim 1, wherein the step of adjusting the water volume ratio of the hot water and the cold water according to the second comparison result comprises:
if the target water outlet temperature is less than or equal to the hot water temperature and greater than the cold water temperature, calculating a target water quantity proportion of the hot water and the cold water required for reaching the target water outlet temperature, and adjusting the actual water quantity proportion of the hot water and the cold water to the target water quantity proportion;
and if the target outlet water temperature is higher than the hot water temperature, prompting the user that the water temperature is insufficient.
4. The method according to claim 1, wherein the step of adjusting the water volume ratio of the hot water and the cold water according to the first comparison result to adjust the actual outlet water temperature of the water supply device comprises:
and when the target water outlet temperature is less than or equal to the hot water temperature and greater than the cold water temperature, calculating a target water quantity ratio of the hot water and the cold water required for reaching the target water outlet temperature, and adjusting the actual water quantity ratio of the hot water and the cold water to the target water quantity ratio.
5. The outlet water temperature control method according to claim 3 or 4, wherein the step of calculating a target water volume ratio of hot water and cold water required for reaching the target outlet water temperature, and the step of adjusting the actual water volume ratio of the hot water and the cold water to the target water volume ratio comprises:
and calculating target water quantities of hot water and cold water required for reaching the target outlet water temperature, and respectively adjusting the actual water quantities of the hot water and the cold water to the respective target water quantities.
6. The method of claim 5, wherein the step of calculating the target amounts of hot and cold water required to reach the target outlet water temperature comprises:
according to
And calculating target water amounts of the hot water and the cold water by Q '1 + Q2, wherein Q1 is the target water amount of the hot water, Q2 is the target water amount of the cold water, Q' is the water yield, T is the target water outlet temperature, T1 is the hot water temperature, and T2 is the cold water temperature.
7. The method of claim 6, further comprising, prior to the step of calculating the target amounts of hot and cold water required to reach the target leaving water temperature:
and receiving the water yield input by the user.
8. The method of claim 5, wherein the step of adjusting the actual water volume of the hot water and the cold water to the respective target water volume comprises:
comparing the target water quantity with the actual water quantity of the hot water, and if the target water quantity is equal to the actual water quantity, not adjusting the water quantity of the hot water; if not, adjusting the actual water quantity of the hot water to the target water quantity of the hot water;
comparing the target water quantity and the actual water quantity of the cold water, and if the target water quantity and the actual water quantity are equal, not adjusting the water quantity of the cold water; and if not, adjusting the actual water quantity of the cold water to the target water quantity of the cold water.
9. A go out water temperature control device is applied to water supply installation (100), water supply installation (100) are used for exporting after mixing hot water and cold water, its characterized in that includes:
the receiving module (160) is used for receiving the target outlet water temperature input by the user;
the comparison module (170) is used for comparing the target outlet water temperature, the hot water temperature and the cold water temperature to obtain a first comparison result;
the control module (180) is used for controlling the water quantity proportion of the hot water and the cold water according to the first comparison result so as to adjust the actual outlet water temperature of the water supply device (100), and the step of adjusting the water quantity proportion of the hot water and the cold water according to the first comparison result so as to adjust the actual outlet water temperature of the water supply device comprises the following steps:
when the target outlet water temperature is higher than the hot water temperature, adjusting the water volume of the cold water to zero, and independently outputting the hot water; after the hot water is independently output for a preset time, comparing the temperature of the hot water with the target water outlet temperature again to obtain a second comparison result; and adjusting the water quantity ratio of the hot water and the cold water according to the second comparison result.
10. A water supply device (100), comprising:
a hot water flow passage (110) for inputting hot water;
a first solenoid valve (112) disposed in the hot water flow passage (110) for controlling the amount of hot water;
a cold water flow passage (120) for inputting cold water;
the second electromagnetic valve (122) is arranged in the cold water flow channel (120) and is used for controlling the water quantity of the cold water;
the water outlet flow passage (130) is simultaneously communicated with the hot water flow passage (110) and the cold water flow passage (120) and is used for mixing hot water and cold water and outputting the mixed water;
the controller (140) is electrically connected to the first solenoid valve (112) and the second solenoid valve (122) at the same time, and is configured to receive a target outlet water temperature input by a user, compare the target outlet water temperature, a hot water temperature and a cold water temperature to obtain a first comparison result, and adjust the opening degrees of the first solenoid valve (112) and the second solenoid valve (122) according to the first comparison result, so as to adjust the water volume ratio of the hot water and the cold water, thereby adjusting the actual outlet water temperature of the water supply device (100), and adjust the water volume ratio of the hot water and the cold water according to the first comparison result, so as to adjust the actual outlet water temperature of the water supply device, including:
when the target outlet water temperature is higher than the hot water temperature, adjusting the water volume of the cold water to zero, and independently outputting the hot water; after the hot water is independently output for a preset time, comparing the temperature of the hot water with the target water outlet temperature again to obtain a second comparison result; and adjusting the water quantity ratio of the hot water and the cold water according to the second comparison result.
11. The water supply device (100) according to claim 10, further comprising:
the temperature control device comprises a first temperature sensor (114) and a second temperature sensor (124) which are respectively electrically connected with the controller (140), wherein the first temperature sensor (114) is arranged in the hot water flow passage (110) and used for detecting the temperature of the hot water, and the second temperature sensor (124) is arranged in the cold water flow passage (120) and used for detecting the temperature of the cold water.
12. The water supply device (100) according to claim 10, further comprising:
and a first flow meter (116) and a second flow meter (126) respectively electrically connected with the controller (140), wherein the first flow meter (116) is arranged on the hot water flow passage (110) and used for detecting the water quantity of the hot water, and the second flow meter (126) is arranged on the cold water flow passage (120) and used for detecting the water quantity of the cold water.
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| CN104989849A (en) * | 2015-06-11 | 2015-10-21 | 芜湖美的厨卫电器制造有限公司 | Water mixing valve, water heater, water system and water temperature regulating method |
| US10209721B2 (en) * | 2016-08-18 | 2019-02-19 | Haier Us Appliance Solutions, Inc. | Hot water heater systems and methods for controlling electronic mixing valves |
| CN106642717A (en) * | 2016-10-12 | 2017-05-10 | 重庆蓝岸通讯技术有限公司 | Device of controlling supply water temperature and method of device |
| CN108662785A (en) * | 2017-03-31 | 2018-10-16 | 芜湖美的厨卫电器制造有限公司 | Water-heater system and its control method |
| CN206694650U (en) * | 2017-05-12 | 2017-12-01 | 广州子灵信息科技有限公司 | A kind of intelligent temperature control valve |
| CN107703994A (en) * | 2017-08-04 | 2018-02-16 | 珠海格力电器股份有限公司 | Control method of water dispenser and water dispenser |
| CN108151323B (en) * | 2017-11-28 | 2020-05-05 | 海尔优家智能科技（北京）有限公司 | Method, controller, device and storage medium for intelligently adjusting water temperature |
| CN107969921A (en) * | 2018-01-18 | 2018-05-01 | 彭诗喆 | A kind of water dispenser and its control method for automatically adjusting leaving water temperature |
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