CN117049463A

CN117049463A - Drinking water supply device and control method thereof

Info

Publication number: CN117049463A
Application number: CN202311111483.8A
Authority: CN
Inventors: 彭煜; 朱顺五; 闻思源
Original assignee: AO Smith China Water Heater Co Ltd; AO Smith China Environmental Products Co Ltd
Current assignee: AO Smith China Water Heater Co Ltd; AO Smith China Environmental Products Co Ltd
Priority date: 2023-08-30
Filing date: 2023-08-30
Publication date: 2023-11-14

Abstract

The application discloses a drinking water supply device and a control method thereof, which relate to the technical field of water supply devices, wherein the control method of the drinking water supply device comprises the following steps: judging whether a first preset condition is met when warm water is required to be output; if the first preset condition is met, outputting hot water and cold water, and in the process, improving the output total amount of the hot water and/or reducing the output total amount of the cold water; the temperature of the warm water is between the temperature of the cold water and the temperature of the hot water. The application can solve the problem that the temperature of the first cup of warm water which is output again after the drinking water supply device does not output hot water or warm water for a period of time is low.

Description

Drinking water supply device and control method thereof

Technical Field

The application relates to the technical field of water supply devices, in particular to a drinking water supply device and a control method thereof.

Background

The existing drinking water supply device not only can output cold water and hot water to meet the demands of users, but also can output warm water in order to further improve the user experience. The drinking water supply device can output cold water and hot water according to a certain proportion at the same time when outputting warm water, so that a user can receive the warm water.

However, when the user does not use the drinking water supply device to output hot water or warm water for a period of time, the problem that the temperature of the first cup of warm water output again is low can occur, especially in winter with low weather temperature, the temperature of the first cup of warm water is low obviously, and the user experience deviation is caused.

Disclosure of Invention

In order to overcome the defects in the prior art, the technical problem to be solved by the embodiment of the application is to provide a drinking water supply device and a control method thereof, which can solve the problem that the temperature of first cup warm water which is output again after the drinking water supply device does not output hot water or warm water for a period of time is low.

The specific technical scheme of the embodiment of the application is as follows:

a method of controlling a potable water supply apparatus, the method comprising:

judging whether a first preset condition is met when warm water is required to be output;

if the first preset condition is met, outputting hot water and cold water, and in the process, improving the output total amount of the hot water and/or reducing the output total amount of the cold water; the temperature of the warm water is between the temperature of the cold water and the temperature of the hot water.

Preferably, the first preset condition includes at least one of: the time interval from the last hot water or warm water supply exceeds a first preset time, and the temperature of the water in the first pipeline is lower than a preset temperature;

when the first preset condition includes that the temperature of the water in the first pipeline is lower than a preset temperature, the drinking water supply device includes: a hot water supply unit for outputting hot water; the hot water supply unit is communicated with the water output mechanism through a first pipeline.

Preferably, when the first preset condition includes that the time interval from the last supply of hot water or warm water exceeds a first preset time, the value of the first preset time is a fixed value or dynamically adjusted.

Preferably, when the value of the first preset time is dynamically adjusted, the value of the first preset time is related to at least one of the following factors: season, ambient temperature, chilled water temperature, type or temperature of water last outputted by the potable water supply.

Preferably, the first preset time is positively correlated with the ambient temperature;

the first preset time is positively correlated to the cold water temperature;

the first preset time is positively correlated with the ambient temperature;

when the season is summer, the value of the first preset time is increased, and when the season is winter, the value of the first preset time is reduced;

the first preset time is positively correlated with the temperature of water output by the drinking water supply device last time;

when the type of water output by the drinking water supply device is hot water last time, the value of the first preset time is increased, and when the type of water output by the drinking water supply device last time is cold water, the value of the first preset time is reduced.

Preferably, the control method of the drinking water supply device further comprises:

if the first preset condition is not met, the hot water and the cold water are normally output.

Preferably, the step of normally outputting hot water and cold water includes:

and acquiring the temperature of cold water, and determining the total amount of the outputted hot water and/or the total amount of the outputted cold water according to the temperature of the cold water, the temperature of the outputted hot water and the temperature of warm water required to be outputted.

Preferably, when the flow rate of the output hot water is a fixed value and the flow rate of the output cold water is a fixed value, the total amount of the output hot water and the total amount of the output cold water are controlled by controlling the time of outputting the hot water and the time of outputting the cold water.

Preferably, in the step of increasing the total output of hot water, at least one of the following means is included: increasing the power of the first pump means for outputting hot water, increasing the opening of the first valve means for outputting hot water, and advancing the time for outputting hot water.

Preferably, in the step of reducing the total output of cold water, at least one of the following means is included: delay the time of outputting cold water, decrease the opening of the second valve means for outputting cold water, decrease the power of the second pump means for outputting cold water.

Preferably, hot water and cold water are output, and in the early stages of the process, the total output of hot water is increased and/or the total output of cold water is decreased.

Preferably, the step of outputting hot water and cold water comprises:

A drinking water supply apparatus employing the control method of the drinking water supply apparatus as set forth in any one of the above, the drinking water supply apparatus comprising:

a hot water supply unit for outputting hot water, the hot water supply unit being communicable with the water output mechanism through a first pipe;

a cold water supply unit for outputting cold water, the cold water supply unit being communicable with the water output mechanism.

Preferably, the drinking water supply device further comprises: and the hot water supply unit is communicated with the water output mechanism through the first pump device and the first pipeline.

Preferably, the cold water supply unit includes: a water purifying unit and a second pump device for pressurizing the water purifying unit;

in the step of reducing the total output amount of the cold water, when the time of outputting the cold water is included, the time of outputting the cold water is delayed by controlling the second pump means to be turned on with a delay.

Preferably, a second valve device capable of adjusting the opening degree is connected between the outlet of the cold water supply unit and the water output mechanism.

Preferably, a first valve device capable of adjusting the opening degree is connected between the outlet of the hot water supply unit and the water output mechanism.

Preferably, the outlet of the cold water supply unit is communicable with the hot water supply unit, and the hot water supply unit includes a water storage device or an instant heating device capable of heating water.

Preferably, the cold water supply unit further includes: the outlet of the water inlet valve is communicated with the inlet of the water purifying unit;

in the step of reducing the total output amount of the cold water, when the time of outputting the cold water is included, the time of outputting the cold water is delayed by delaying the control of the opening of the water inlet valve.

Preferably, the drinking water supply device includes:

the water output mechanism is used for outputting cold water and hot water respectively in a concentric water outlet mode.

Preferably, the water output mechanism comprises a first water outlet pipe body and a second water outlet pipe body arranged in the first water outlet pipe body, a first water outlet flow channel is formed between the inner side wall of the first water outlet pipe body and the outer side wall of the second water outlet pipe body, and a second water outlet flow channel is formed in the second water outlet pipe body; the hot water supply unit may be in communication with one of the first water outlet flow passage and the second water outlet flow passage through a first pipe, and the cold water supply unit may be in communication with the other of the first water outlet flow passage and the second water outlet flow passage.

The technical scheme of the application has the following remarkable beneficial effects:

by adopting the control method of the drinking water supply device, when the warm water is required to be output and the first preset condition is met, namely, under the condition that the water in the first pipeline is cooled to a certain lower temperature, the total output amount of the hot water can be increased and/or the total output amount of the cold water can be reduced in the process of outputting the hot water and the cold water so as to supply the warm water to a user, so that the cooled water in the output first pipeline to a certain extent is compensated.

Specific embodiments of the application are disclosed in detail below with reference to the following description and drawings, indicating the manner in which the principles of the application may be employed. It should be understood that the embodiments of the application are not limited in scope thereby. Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments in combination with or instead of the features of the other embodiments.

Drawings

The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, proportional sizes, and the like of the respective components in the drawings are merely illustrative for aiding in understanding the present application, and are not particularly limited. Those skilled in the art with access to the teachings of the present application can select a variety of possible shapes and scale sizes to practice the present application as the case may be.

Fig. 1 is a flowchart illustrating steps of a method for controlling a drinking water supply device according to an embodiment of the present application;

fig. 2 is a schematic diagram of a system of a drinking water supply device according to a first embodiment of the present application;

FIG. 3 is a schematic diagram of a drinking water supply apparatus according to a second embodiment of the present application;

fig. 4 is a schematic diagram of a system of a drinking water supply device according to a third embodiment of the present application;

fig. 5 is a schematic diagram of a system of a drinking water supply device according to a fourth embodiment of the present application;

fig. 6 is a schematic system diagram of a drinking water supply device according to a fifth embodiment of the present application;

FIG. 7 is a schematic diagram of a water output mechanism at a water outlet in accordance with an embodiment of the present application using concentric water outlets.

Reference numerals of the above drawings:

1. a water output mechanism; 11. a first water outlet pipe body; 12. a second water outlet pipe body; 13. a first water outlet flow passage; 14. a second water outlet flow passage; 2. a hot water supply unit; 21. a first pipeline; 22. an exhaust line; 23. a first pump device; 24. a water storage device; 25. a first valve device; 26. an instant heating device; 3. a cold water supply unit; 31. a water purifying unit; 32. a water inlet valve; 33. a pre-filter unit; 34. a post-filtration unit; 35. a return waterway; 351. a first one-way valve; 36. a wastewater waterway; 361. a combination valve; 37. a return waterway; 371. a second one-way valve; 38. a second pump device; 39. a third one-way valve; 310. a second valve device; 4. and an opening/closing valve.

Detailed Description

The details of the application will be more clearly understood in conjunction with the accompanying drawings and description of specific embodiments of the application. However, the specific embodiments of the application described herein are for the purpose of illustration only and are not to be construed as limiting the application in any way. Given the teachings of the present application, one of ordinary skill in the related art will contemplate any possible modification based on the present application, and such should be considered to be within the scope of the present application. It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, mechanically or electrically connected, may be in communication with each other in two elements, may be directly connected, or may be indirectly connected through an intermediary, and the specific meaning of the terms may be understood by those of ordinary skill in the art in view of the specific circumstances. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

In order to solve the problem that the temperature of the first cup of warm water that is output again by the drinking water supply device after no hot water or warm water is output at intervals, the application proposes a drinking water supply device and a control method of the drinking water supply device, and fig. 2 is a schematic system diagram of the drinking water supply device in the first embodiment of the application, as shown in fig. 2, for example, the drinking water supply device may include: a hot water supply unit 2 for outputting hot water, the hot water supply unit 2 being communicable with the water output mechanism 1 through a first pipe 21; a cold water supply unit 3 for outputting cold water, the cold water supply unit 3 being capable of communicating with the water output mechanism 1. When the hot water supply unit 2 supplies hot water to the water output mechanism 1 through the first pipeline 21 alone, the water output mechanism 1 can output hot water for a user to use. When the cold water supply unit 3 supplies cold water to the water output mechanism 1 alone, the water output mechanism 1 can output cold water for a user to use. The hot water supply unit 2 supplies hot water to the water output mechanism 1 through the first pipeline 21, and the cold water supply unit 3 supplies cold water to the water output mechanism 1, so that the water output mechanism 1 can supply warm water for a user. The specific temperature of the warm water may be determined by the ratio of the hot water and the cold water, the temperature of the hot water, and the temperature of the cold water. The water output mechanism 1 may output cold water and hot water to a user after mixing them into warm water, or may output cold water and hot water respectively, and the cold water and hot water may be mixed into warm water in a user cup.

As a practical matter, when the water output mechanism 1 can output cold water and hot water, respectively, the drinking water supply device may include: fig. 7 is a schematic partial view of a water output mechanism at a water outlet in a concentric water outlet mode in an embodiment of the present application, and as shown in fig. 7, the water output mechanism outputs cold water and hot water respectively in a concentric water outlet mode. I.e. the centre of the outgoing cold water flow is substantially the same as the centre of the outgoing hot water flow. For example, the water output mechanism may include a first water outlet pipe body 11 and a second water outlet pipe body 12 disposed in the first water outlet pipe body 11, wherein a first water outlet flow channel 13 is formed between an inner sidewall of the first water outlet pipe body 11 and an outer sidewall of the second water outlet pipe body 12, and a second water outlet flow channel 14 is formed in the second water outlet pipe body 12. The hot water supply unit 2 can communicate with one of the first water outlet flow passage 13 and the second water outlet flow passage 14 through the first pipe 21, and the cold water supply unit 3 can communicate with the other of the first water outlet flow passage 13 and the second water outlet flow passage 14.

As a possible embodiment, fig. 5 is a schematic system diagram of a drinking water supply device according to a fourth embodiment of the present application, and fig. 6 is a schematic system diagram of a drinking water supply device according to a fifth embodiment of the present application, where, as shown in fig. 5 and 6, the hot water supply unit 2 may include a water storage device 24 capable of heating water, an instant heating device 26, or a water storage device 24 capable of storing hot water, and of course, the hot water supply unit 2 may adopt other types of devices as long as it is capable of outputting and supplying hot water. When the water storage device 24 can be communicated with the water output mechanism 1 through the exhaust pipeline 22, the exhaust pipeline 22 is used for exhausting the water vapor generated when the water storage device 24 heats water.

As a practical matter, the cold water supply unit 3 may include a water storage device 24 capable of storing and outputting cold water or a device directly capable of outputting cold water, as long as it is sufficient to be able to output the supplied cold water. For example, as shown in fig. 6, the device capable of outputting cold water may include a water purifying unit 31, and the water purifying unit 31 may output cold purified water. In other possible embodiments, fig. 5 is a schematic system diagram of a drinking water supply device according to a fourth embodiment of the present application, where the device capable of outputting cold water may also include a pipe connected to a water source, as shown in fig. 5.

Fig. 1 is a flowchart illustrating steps of a method for controlling a drinking water supply device according to an embodiment of the present application, and as shown in fig. 1, the method for controlling a drinking water supply device according to the present application may include the steps of:

s101: judging whether the first preset condition is met or not when warm water is required to be output.

In this step, the first preset condition may indicate that the water in the first pipeline 21 has been cooled to a certain low temperature, and at this time, after the partial water is output, the temperature of the first cup of warm water formed is low, which affects the user experience. Specifically, the first preset condition may include at least one of: the time interval from the last supply of hot or warm water exceeds a first preset time, the temperature of the water in the first pipe 21 is lower than a preset temperature, etc. The first preset time may be the time required for the hot water in the first pipe 21 to cool to a lower temperature. The preset temperature can be a set lower temperature, and the water at the temperature can lead to lower temperature of the formed first cup of warm water after being output, so that the user experience is affected.

As a possibility, when the first preset condition includes that the time interval from the last supply of hot or warm water exceeds the first preset time, the value of the first preset time may be a fixed value or dynamically adjusted. Because various factors can influence the cooling speed of the hot water in the first pipeline 21, the value of the first preset time can be dynamically adjusted in order to further improve the accuracy of the temperature of the first cup of warm water.

When the value of the first preset time is dynamically adjusted, the value of the first preset time is related to at least one of the following factors: season, ambient temperature, chilled water temperature, type or temperature of water last output from the potable water supply, etc.

The first preset time may be positively correlated with the ambient temperature. The higher the ambient temperature, the slower the hot water cooling rate in the first pipe 21, the first preset time may be relatively increased, and the lower the ambient temperature, the faster the hot water cooling rate in the first pipe 21, the first preset time may be relatively decreased.

The first preset time may be positively correlated with the cold water temperature. The lower the cold water temperature may represent a lower ambient temperature, the faster the hot water cooling rate in the first pipe 21, and the first preset time may be relatively reduced. The higher the cold water temperature, which may indicate a higher ambient temperature, the slower the hot water cooling rate in the first pipe 21, and the first preset time may be relatively increased.

The lower the hot water cooling rate in the first pipe 21 is, the greater the value of the first preset time is, when the season is summer, and the higher the hot water cooling rate in the first pipe 21 is, the smaller the value of the first preset time is, when the season is winter.

The first preset time is positively correlated with the temperature of water output by the last drinking water supply device. The higher the temperature of the water output from the drinking water supply device the last time, the higher the temperature of the hot water in the first pipe 21, the longer it is cooled to a certain lower temperature, so the value of the first preset time can be relatively increased; the lower the temperature of the water output from the last potable water supply means, the lower the temperature of the hot water in the first conduit 21, the faster it cools to a lower temperature, and therefore the value of the first preset time may be relatively reduced.

When the type of water output by the last drinking water supply device is hot water, the value of the first preset time is increased. Because the type of water output by the drinking water supply device is hot water, the accumulation in the flow passage for outputting hot water in the water output mechanism 1 is hot water, and the hot water can heat the cold water in the flow passage for outputting cold water to a certain extent during outputting, the temperature of the water in the flow passage for outputting hot water in the water output mechanism 1 is relatively higher, so that the value of the first preset time is increased. When the type of water output by the last drinking water supply device is cold water, the value of the first preset time is reduced. When the cold water is output, the hot water in the flow channel for outputting the hot water is cooled, so that the temperature of the water in the flow channel for outputting the hot water in the water output mechanism 1 is relatively biased, and the value of the first preset time needs to be reduced.

S102: if the first preset condition is not met, the hot water and the cold water are normally output.

In this step, if it is judged that the first preset condition is not satisfied when the warm water is required to be output, it is indicated that the water in the first pipe body is still hot water, and cooling to a certain lower temperature does not occur, at this time, the normal output hot water and cold water can form the first cup warm water that satisfies the user demand, and the condition that the temperature of this first cup warm water is lower does not occur, influences user experience.

When the first preset condition is judged not to be met when the warm water is required to be output, the drinking water supply device can also be used for continuously outputting the hot water or the warm water, so that the water in the first pipe body is not cooled to a certain lower temperature.

As a possibility, in order to make the temperature of warm water actually output coincide with the temperature of warm water arbitrarily set to be output, normally outputting hot water and cold water may include: the temperature of the cold water is obtained, and the total amount of the hot water to be output and/or the total amount of the cold water to be output are/is determined according to the temperature of the cold water, the temperature of the hot water to be output and the temperature of the warm water to be output.

In the above step, the temperature of cold water×the total amount of cold water+the temperature of hot water to be outputted×the total amount of hot water to be outputted is substantially=the temperature of warm water to be outputted× (total amount of hot water to be outputted+total amount of cold water to be outputted).

As a possibility, when the flow rate of the output hot water is a fixed value and the flow rate of the output cold water is a fixed value, the total amount of the output hot water and the total amount of the output cold water may be controlled by controlling the time of outputting the hot water and the time of outputting the cold water. For another example, when the flow rate of the output hot water is adjustable and/or the flow rate of the output cold water is adjustable, the total amount of the output hot water and the total amount of the output cold water may be controlled by changing the flow rate of the output hot water and/or the flow rate of the output cold water. Of course, the total amount of hot water and the total amount of cold water output can be controlled by controlling the time of outputting hot water and the time of outputting cold water at the same time, and changing the flow rate of hot water and/or the flow rate of cold water output.

S103: if the first preset condition is met, outputting hot water and cold water, and in the process, improving the output total amount of the hot water and/or reducing the output total amount of the cold water; the temperature of the warm water is between the temperature of the cold water and the temperature of the hot water.

In this step, if the first preset condition is satisfied, hot water and cold water are outputted, so that the user obtains warm water after mixing the hot water and the cold water. The temperature of the warm water may be any temperature between the temperature of the cold water and the temperature of the hot water, and may be a fixed value or may be changed according to user settings. In the process of outputting hot water and cold water, the output total amount of the hot water is increased and/or the output total amount of the cold water is reduced. Since the water in the first pipe 21 has been cooled to a certain low temperature when the first preset condition is satisfied, the partial water output will result in a low temperature of the first cup of warm water. Therefore, the hot water and the cold water cannot be outputted in accordance with the total amount of the outputted hot water and/or the total amount of the outputted cold water determined in step S102. In order to compensate the water cooled to a certain extent in the first pipeline 21, the output total amount of hot water can be increased and/or the output total amount of cold water can be reduced, so that the temperature of warm water formed by mixing the hot water and the cold water to the temperature of warm water to be output can be increased.

In the step of increasing the total output of hot water, this may be achieved in a number of different ways, for example it may comprise at least one of the following ways: increasing the power of the first pump means 23 for outputting hot water, increasing the opening degree of the first valve means 25 for outputting hot water, advancing the time of outputting hot water, and the like.

When the total output amount of the hot water is increased by increasing the power of the first pump means 23 for outputting the hot water, fig. 4 is a system schematic diagram of the drinking water supply apparatus according to the embodiment of the present application in the third embodiment, as shown in fig. 4, the drinking water supply apparatus includes the first pump means 23. The hot water supply unit 2 communicates with the water output mechanism 1 via a first pump device 23 and a first pipe 21.

When the total amount of hot water output is increased by increasing the opening degree of the first valve device 25 for outputting hot water, fig. 3 is a system schematic diagram of the drinking water supply device in the second embodiment of the present application, and as shown in fig. 3, the first valve device 25 capable of adjusting the opening degree is connected between the outlet of the hot water supply unit 2 and the water output mechanism 1.

The time for outputting hot water in advance can be a fixed value or a variable value, and the variable value can be dynamically adjusted according to seasons, ambient temperature, cold water temperature and the type or temperature of water output by the last drinking water supply device.

In the step of reducing the total output of cold water, this can also be achieved in a number of different ways, including for example at least one of the following ways: delay of the time of outputting cold water, decrease of the opening degree of the second valve device 310 for outputting cold water, decrease of the power of the second pump device 38 for outputting cold water.

The time for delaying the output of cold water can be a constant value or a variable value, and the variable value can be dynamically adjusted according to seasons, ambient temperature, cold water temperature and the type or temperature of water output by the last drinking water supply device.

When the total output amount of cold water is reduced by reducing the opening degree of the second valve device 310 for outputting cold water, as shown in fig. 3, a second valve device 310 capable of adjusting the opening degree may be connected between the outlet of the cold water supply unit 3 and the water output mechanism 1.

When the total output amount of cold water is reduced by reducing the power of the second pump device 38 for outputting cold water, as shown in fig. 4, the drinking water supply device includes the second pump device 38. The cold water supply unit 3 outputs cold water to the water output mechanism 1 by the second pump device 38. As a possibility, as shown in fig. 6, the cold water supply unit 3 may include: the water purification unit 31 and the second pump means 38 for pressurizing the water purification unit 31. The second pump device 38 may increase the filtration rate of the water purification unit 31 to increase the output flow rate of the purified water. As a matter of possibility, when the total output amount of cold water is reduced by delaying the time of outputting cold water, the time of outputting cold water may be delayed by delaying the control of the turning on of the second pump device 38. The water purifying unit 31 may be any filtering unit for filtering water so as to be able to produce purified water, and is not limited in any way in the present application. As a practical matter, the water purifying unit 31 includes at least one of the following: reverse osmosis membrane filtration units, nanofiltration membrane filtration units, ultrafiltration membrane filtration units, and the like. When the water purifying unit 31 is a filtering unit that needs to discharge wastewater, the cold water supply unit 3 may include: a waste water channel 36 connected to a waste water outlet of the water purifying unit 31, and a waste water ratio device provided on the waste water channel 36.

As a possibility, if the first preset condition is satisfied, the hot water and the cold water are outputted, and the total output of the hot water is increased and/or the total output of the cold water is decreased in the early stage of the process, and the decrease of the temperature of the first cup of warm water due to the cooled water in the first pipeline 21 can be compensated by increasing the total output of the hot water and/or decreasing the total output of the cold water in the early stage. After the early stage, the drinking water supply device can output hot water and cold water according to the regular output of the hot water and the cold water so as to form warm water. The normal outputting of the hot water and the cold water may be outputting of the hot water and the cold water in such a manner that the rule of the hot water and the cold water is not satisfied under the first preset condition to form warm water, and the temperature of the warm water may be a temperature of the warm water to be outputted. Since the drinking water supply device cannot judge the total amount of warm water obtained by the user, the reduction of the temperature of the first cup of warm water caused by the cooled water in the first pipeline 21 is compensated when the hot water and the cold water are output in the early stage, and therefore, no matter how small amount of warm water is obtained by the user, the drinking water supply device can make the temperature of the warm water obtained by the user as accurate as possible, and the temperature required by the user is met.

As a practical matter, in outputting hot water and cold water in the step may include: the temperature of the cold water is obtained, and the total amount of the hot water to be output and/or the total amount of the cold water to be output are/is determined according to the temperature of the cold water, the temperature of the hot water to be output and the temperature of the warm water to be output. In order to make the temperature of the warm water actually output coincide with the temperature of the warm water which is arbitrarily set and needs to be output, as the temperature of the cold water has larger difference along with the ambient temperature, seasons and different areas, the total amount of the hot water output and/or the total amount of the cold water output can be determined according to the temperature of the cold water, the temperature of the hot water output and the temperature of the warm water which needs to be output by a user during normal output through the steps. On the basis of this, in order to compensate for the water cooled to some extent in the first pipe 21, the total output of hot water and/or the total output of cold water can be increased, so that the temperature at which the hot water and the cold water are mixed up is increased to the temperature of warm water to be output.

As a possibility, as shown in fig. 6, the cold water supply unit 3 may include: the inlet valve 32, the outlet of the inlet valve 32 communicates with the inlet of the water purifying unit 31. The inlet valve 32 is adapted to be connected to a source of water, such as tap water. In the step of reducing the total output amount of cold water, when the time of outputting cold water is included, the time of outputting cold water may be delayed by delaying the control of the opening of the water inlet valve 32.

As a possibility, as shown in fig. 6, the outlet of the cold water supply unit 3 can communicate with the hot water supply unit 2, so that cold water or supplementary cold water can be supplied to the hot water supply unit 2. For example, an on-off valve 4 may be provided between the outlet of the cold water supply unit 3 and the hot water supply unit 2 to control whether cold water is supplied to the hot water supply unit 2 or cold water is replenished. As a possibility, when the cold water supply unit 3 supplies cold water or supplementary cold water to the hot water supply unit 2, the second valve device 310 may be in a closed state, the second valve device 310 being connected between the cold water supply unit 3 and the water output mechanism 1.

As a possibility, as shown in fig. 6, the cold water supply unit 3 may include: a pre-filter unit 33 connected upstream of the water purifying unit 31, the pre-filter unit 33 comprising at least one of: a PP cotton filter unit, an active carbon filter unit and a scale inhibitor release unit. The pre-filter unit 33 may include a PP cotton filter unit, an activated carbon filter unit, and a scale inhibitor release unit at the same time.

As a possibility, as shown in fig. 6, the cold water supply unit 3 may include: a post-filtration unit 34 connected downstream of the purified water outlet of the purified water unit 31. In order to avoid the back flow of the post-filter unit 34, a third one-way valve 39 may be disposed between the post-filter unit 34 and the water purifying unit 31, and the third one-way valve 39 may enable the water purifying outlet of the water purifying unit 31 to be conducted in the direction of the post-filter unit 34.

As a possibility, as shown in fig. 6, the pre-filter unit 33 and the post-filter unit 34 may be combined in the same filter flask, in such a way that the number of filter flasks in the whole cold water supply unit 3 may be reduced.

As a possibility, as shown in fig. 6, the purified water outlet of the purified water unit 31 or the downstream of the purified water outlet may be communicated with the upstream of the inlet of the purified water unit 31 through the return waterway 35. The return water path 35 may be provided with a first check valve 351 that enables the water purification outlet of the water purification unit 31 to be connected to the inlet of the water purification unit 31. In general, the return water line 35 communicates upstream of the inlet of the pre-filter unit 33. Correspondingly, the return water path 35 forms a circulation water path with the water purifying unit 31 and other filtering units located therebetween, and the second pump device 38 may be provided on the circulation water path. The return water path 35 may return the purified water generated by the water purifying unit 31 to the pre-filter unit 33 for storage, and at this time, the water from the water source may not enter the pre-filter unit 33. When the raw water side of the water purifying unit 31 needs to be washed or replaced by the purified water stored in the pre-filtering unit 33, the purified water in the pre-filtering unit 33 can be replaced by the water from the water source, so that the raw water side of the water purifying unit 31 can be washed or replaced by the replaced purified water, and the TDS of the first cup of water output after the water purifying unit 31 is not used for a long time can be reduced by replacement.

When the purified water outlet of the water purifying unit 31 or the downstream of the purified water outlet may be communicated with the upstream of the inlet of the water purifying unit 31 through the return water path 35, as shown in fig. 6, a combination valve 361 for replacing the wastewater ratio device is provided on the wastewater water path 36, and the combination valve 361 may have a wastewater ratio function and an on-off function.

Further, as shown in fig. 6, a waste water channel 36 upstream of the waste water ratio apparatus communicates with an inlet upstream of the water purifying unit 31 and a downstream of an outlet of the pre-filter unit 33 through a return water channel 37. When the return waterway 35 can return the purified water generated by the water purifying unit 31 to the pre-filtering unit 33 for storage, the water discharged from the waste water outlet of the water purifying unit 31 can return to the inlet of the water purifying unit 31, so that damage to the filtering membrane in the water purifying unit 31 due to over-high pressure can be avoided. The return water path 37 may be provided with a second check valve 371, and the second check valve 371 enables the waste water path 36 to be conducted in an upstream direction of the inlet of the water purifying unit 31.

By adopting the control method of the drinking water supply device in the application, when the warm water is required to be output and the first preset condition is met, namely, under the condition that the water in the first pipeline 21 is cooled to a certain lower temperature, the total output quantity of the hot water and/or the total output quantity of the cold water can be increased in the process of outputting the hot water and the cold water to supply the warm water to a user, so that the water cooled to a certain extent in the output first pipeline 21 is compensated.

All articles and references, including patent applications and publications, disclosed herein are incorporated by reference for all purposes. The term "consisting essentially of …" describing a combination shall include the identified element, ingredient, component or step as well as other elements, ingredients, components or steps that do not substantially affect the essential novel features of the combination. The use of the terms "comprises" or "comprising" to describe combinations of elements, components, or steps herein also contemplates embodiments consisting essentially of such elements, components, or steps. By using the term "may" herein, it is intended that any attribute described as "may" be included is optional. Multiple elements, components, parts or steps can be provided by a single integrated element, component, part or step. Alternatively, a single integrated element, component, part or step may be divided into separate plural elements, components, parts or steps. The disclosure of "a" or "an" to describe an element, component, section or step is not intended to exclude other elements, components, sections or steps.

In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described by differences from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other. The above embodiments are provided to illustrate the technical concept and features of the present application and are intended to enable those skilled in the art to understand the content of the present application and implement the same, and are not intended to limit the scope of the present application. All equivalent changes or modifications made in accordance with the spirit of the present application should be construed to be included in the scope of the present application.

Claims

1. A method of controlling a potable water supply apparatus, characterized by comprising:

2. The method of controlling a potable water supply device of claim 1, characterized in that the first preset condition comprises at least one of: the time interval from the last hot water or warm water supply exceeds a first preset time, and the temperature of the water in the first pipeline is lower than a preset temperature;

3. The method for controlling a potable water supply apparatus according to claim 2 characterized in that,

when the first preset condition comprises that the time interval from the last hot water or warm water supply exceeds a first preset time, the value of the first preset time is a fixed value or is dynamically regulated.

4. A method of controlling a potable water supply apparatus according to claim 3 characterized in that, when the value of the first preset time is dynamically adjusted, the value of the first preset time is related to at least one of the following factors: season, ambient temperature, chilled water temperature, type or temperature of water last outputted by the potable water supply.

5. The method of controlling a potable water supply apparatus of claim 4, wherein the first preset time is positively correlated with the ambient temperature;

the first preset time is positively correlated to the cold water temperature;

the first preset time is positively correlated with the ambient temperature;

6. The method of controlling a potable water supply apparatus according to claim 1, characterized in that the method of controlling a potable water supply apparatus further comprises:

7. The method of controlling a potable water supply apparatus according to claim 6, characterized by the steps of normally outputting hot water and cold water, comprising:

8. The control method of the potable water supply apparatus of claim 7, wherein the total amount of hot water and the total amount of cold water output are controlled by controlling the time of outputting hot water and the time of outputting cold water when the flow rate of outputting hot water is a fixed value and the flow rate of outputting cold water is a fixed value.

9. The method of controlling a potable water supply apparatus according to claim 1, characterized in that in the step of increasing the total output of hot water, at least one of the following means is included: increasing the power of the first pump means for outputting hot water, increasing the opening of the first valve means for outputting hot water, and advancing the time for outputting hot water.

10. The method of controlling a potable water supply apparatus according to claim 1, characterized in that in the step of reducing the total output of the cold water, at least one of the following means is included: delay the time of outputting cold water, decrease the opening of the second valve means for outputting cold water, decrease the power of the second pump means for outputting cold water.

11. A control method of a drinking water supply device according to claim 1, characterized in that hot water and cold water are output, in a preceding stage of the process, the total output of hot water is increased and/or the total output of cold water is decreased.

12. The method of controlling a potable water supply apparatus according to claim 1, characterized by the steps of outputting hot water and cold water, comprising:

13. A drinking water supply apparatus employing the control method of the drinking water supply apparatus according to claim 1, characterized in that the drinking water supply apparatus comprises:

14. The potable water supply device of claim 13, characterized in that it further comprises: and the hot water supply unit is communicated with the water output mechanism through the first pump device and the first pipeline.

15. The potable water supply device of claim 13, characterized in that the cold water supply unit comprises: a water purifying unit and a second pump device for pressurizing the water purifying unit;

16. The potable water supply device of claim 13, characterized in that a second valve device capable of adjusting the opening degree is connected between the outlet of the cold water supply unit and the water output mechanism.

17. The potable water supply device of claim 13, characterized in that a first valve device capable of adjusting the opening degree is connected between the outlet of the hot water supply unit and the water output mechanism.

18. The potable water supply device of claim 13, characterized in that the outlet of the cold water supply unit is communicable with the hot water supply unit, the hot water supply unit comprising a water storage device or an instant heating device capable of heating water.

19. The potable water supply apparatus of claim 15, characterized in that the cold water supply unit further comprises: the outlet of the water inlet valve is communicated with the inlet of the water purifying unit;

20. The potable water supply device of claim 13, characterized in that it comprises:

21. The potable water supply device of claim 20, wherein the water output mechanism comprises a first water outlet pipe body and a second water outlet pipe body disposed in the first water outlet pipe body, a first water outlet flow passage being formed between an inner side wall of the first water outlet pipe body and an outer side wall of the second water outlet pipe body, a second water outlet flow passage being formed in the second water outlet pipe body; the hot water supply unit may be in communication with one of the first water outlet flow passage and the second water outlet flow passage through a first pipe, and the cold water supply unit may be in communication with the other of the first water outlet flow passage and the second water outlet flow passage.