CN117928089A

CN117928089A - Water supply system, water heating device and control method thereof

Info

Publication number: CN117928089A
Application number: CN202410244727.8A
Authority: CN
Inventors: 彭煜; 徐大明; 陈小波
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: 2024-03-04
Filing date: 2024-03-04
Publication date: 2024-04-26

Abstract

The application discloses a water supply system, a water heating device and a control method thereof, which relate to the technical field of water supply, wherein the water supply system comprises: a water purification module for producing purified water; the water storage tank can receive and store the purified water generated by the water purification module; the first heating element is used for heating water in the water storage tank; the inlet of the flow guiding component is communicated with the outlet of the water purifying module, the outlet of the flow guiding component is communicated with the inner cavity of the water storage tank so as to input water flowing out of the outlet of the flow guiding component into the inner cavity of the water storage tank, and the flow guiding component is used for guiding at least part of purified water generated by the water purifying module to a region close to the first heating element so that the first heating element can rapidly heat at least part of the purified water; and the hot water output waterway is communicated with the water storage tank. The application can solve the problem of how to increase the total hot water output by the water storage tank when the hot water is supplied to users.

Description

Water supply system, water heating device and control method thereof

Technical Field

The invention relates to the technical field of water supply, in particular to a water supply system, a water heating device and a control method thereof.

Background

In the conventional water supply system for supplying drinking water to a user, there are two main heating modes, namely, an instant heating unit is used for heating water, and when the user takes water, the instant heating unit heats cold water and outputs the heated water to the user. The other is to heat the water by using the water storage tank, in this way, before the user takes water, the water storage tank needs to heat the water inside to a boiling state in advance, and then the user can output hot water when taking water. If the amount of hot water required by the user exceeds the amount of hot water stored in the water storage tank that has been boiled, the user needs to wait for an additional period of time for the water storage tank to heat cold water newly input into the water storage tank to a boiled state. Therefore, users can wait for water taking time too long, and experience is poor.

Disclosure of Invention

In order to overcome the above-mentioned drawbacks of the prior art, an embodiment of the present invention provides a water supply system, a water heating device and a control method thereof, which can solve the problem of how to increase the total hot water output from a water storage tank when hot water is supplied to a user.

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

a water supply system, the water supply system comprising:

A water purification module for producing purified water;

the water storage tank can receive and store purified water generated by the water purification module;

A first heating element for heating water in the water storage tank;

A flow guiding member having an inlet in communication with the outlet of the water purifying module, the outlet in communication with the interior cavity of the water storage tank to input water flowing out of the outlet of the flow guiding member into the interior cavity of the water storage tank, the flow guiding member for guiding at least a portion of the purified water produced by the water purifying module to an area proximate to the first heating element to enable the first heating element to rapidly heat at least a portion of the purified water;

And the hot water output waterway is communicated with the water storage tank.

Preferably, the rapid heating is at least up to a rate of 0.00012 kelvin per liter of water per second corresponding to a heating power per watt.

Preferably, the flow guiding component is at least partially arranged in the inner cavity of the water storage tank, and the first heating element is arranged on the water storage tank and stretches into the inner cavity of the water storage tank.

Preferably, the zone is capable of rapidly heating the clean water proximate the first heating element; the outlet of the flow guiding component can guide at least part of the purified water flowing into the water storage tank to the area for rapid heating.

Preferably, the flow guiding member includes a flow guiding pipe capable of guiding at least part of the purified water generated by the water purifying module to the region.

Preferably, the area is in a range corresponding to the heating power of the first heating element, in particular in a range of 0.08 mm/watt from the outer surface of the first heating element.

Preferably, the flow guiding pipe is wound on the first heating element along the circumferential direction, or at least part of the flow guiding pipe extends along the extending direction of the first heating element.

Preferably, the guide part extends back and forth along the extending direction of the first heating element after being bent and is arranged close to the first heating element.

Preferably, the outlet of the flow guiding member comprises: the side wall of the flow guide pipe is provided with a plurality of through holes distributed along the extending direction of the first heating element, and the flow guide part outputs water in the flow guide pipe into the area through the plurality of through holes.

Preferably, the through hole opens generally towards the first heating element.

Preferably, one end of the flow guiding pipe is in a blocking state.

Preferably, at least part of the first heating elements are generally U-shaped, the first heating elements comprising first and second sections of first heating elements juxtaposed, the draft tube being located between the first and second sections of first heating elements.

Preferably, the flow guiding member includes: a sleeve body sleeved outside the first heating element, wherein the sleeve body forms the area; and the communicating piece communicates the inside of the sleeve body with the inlet of the flow guide part.

Preferably, the sleeve body and the first heating element sleeved on the sleeve body extend in the horizontal direction, the first end of the sleeve body is in a blocking state, the second end of the sleeve body is in an open state, and the communicating part of the communicating part and the sleeve body is relatively closer to the first end of the sleeve body.

Preferably, the height from the upper end surface of the first end of the sleeve body to the upper end surface of the second end of the sleeve body is in an ascending trend.

Preferably, the sleeve body and the first heating element part sleeved by the sleeve body extend along the horizontal direction, the first end of the sleeve body is in an open state, and the second end of the sleeve body is in an open state.

Preferably, the communication between the communication member and the sleeve is located at or near the middle between the first end and the second end of the sleeve.

Preferably, in the vertical direction, the height from the upper end surface of the communication part at the communication part and the sleeve body to the upper end surface of the first end and/or the second end of the sleeve body is in an ascending trend.

Preferably, the diversion component is positioned outside the inner cavity of the water storage tank, and the outlet of the diversion component is communicated with the inlet of the water storage tank.

Preferably, the flow guiding member comprises an instant heating unit having a second heating element;

The flow guiding component is used for guiding at least part of the clean water generated by the clean water module to a region close to the first heating element so that the first heating element can replace at least part of the clean water by rapid heating: the second heating element is used for heating the water flowing through the instant heating unit, so that at least part of the purified water input into the water storage tank by the diversion component is quickly heated by the instant heating unit.

Preferably, the water supply system has a first mode in which the first heating element is in a heating state, hot water in the water storage tank is outputted through a hot water output waterway, and at the same time, the flow guide member guides at least part of water flowing into the water storage tank to a region near the first heating element; the water flow of the hot water in the water storage tank which is output outwards is larger than the water flow of the water flow guiding component which is input into the inner cavity of the water storage tank.

Preferably, the water supply system includes:

a heat exchanger having a first flow passage through which fluid flowing through the first flow passage can exchange heat with fluid flowing through the second flow passage, an inlet of the flow guide member being communicable with an outlet of the water purification module through the first flow passage, and one end of the second flow passage being communicable with the water storage tank;

And the warm water output waterway is communicated with the other end of the second runner.

Preferably, the water supply system includes:

The first control unit is used for controlling water in the water storage tank to flow into the second runner and the warm water output waterway, or water in the water storage tank to flow into the hot water output waterway, or water in the water storage tank flows into the second runner, the warm water output waterway and the hot water output waterway at the same time.

Preferably, the water supply system includes:

And the cold water output waterway can be communicated with the outlet of the water purification module.

Preferably, the water supply system includes:

The second control unit is used for controlling the purified water output by the outlet of the water purification module to flow into the cold water output waterway, or the purified water output by the outlet of the water purification module flows into the first runner, or the purified water output by the outlet of the water purification module flows into the cold water output waterway and the first runner at the same time.

Preferably, the water supply system includes:

The driving pump is arranged at the upstream of the second flow passage and the hot water output waterway, so that the water in the water storage tank can be driven to be output from the outlet of the water storage tank.

Preferably, the flow rate of the drive pump is adjustable.

Preferably, the flow rate of the driving pump is greater as the temperature of the water outputted from the warm water output waterway is higher; the flow rate of the driving pump is smaller as the temperature of the water outputted from the warm water output waterway is lower.

Preferably, the water purification module includes a filtering unit for filtering raw water to generate purified water;

Or alternatively, the first and second heat exchangers may be,

The water purification module comprises a water purification storage unit, and the water purification storage unit is used for storing water purification.

A control method employing any one of the above water supply systems, the control method comprising:

When the hot water is required to be output, outputting the hot water in the inner cavity of the water storage tank through a hot water output waterway;

When hot water is output, the purified water in the water purification module is input into the water storage tank after passing through the flow guide component, and the flow guide component enables at least part of the purified water input into the water storage tank to be heated rapidly.

Preferably, the diversion means is such that at least part of the purified water fed into the water storage tank is rapidly heated to the temperature of the water in the water storage tank.

Preferably, the flow guiding member comprises an instant heating unit having a second heating element for rapidly heating water flowing through the instant heating unit;

The step of the diversion component causing at least part of the purified water input into the water storage tank to be rapidly heated comprises:

and starting the second heating element to heat so that the water flowing through the instant heating unit is quickly heated and then is input into the inner cavity of the water storage tank.

Preferably, the step of the diversion means causing at least part of the purified water input into the water storage tank to be rapidly heated comprises:

And starting the first heating element to heat so that the flow guiding component guides at least part of the purified water generated by the water purifying module to a region, close to the first heating element, in the water storage tank, and therefore at least part of the purified water is quickly heated by the first heating element.

Preferably, in the first mode, when the hot water is output, the purified water generated by the water purification module is input into the inner cavity of the water storage tank after passing through the flow guide component, and the flow guide component enables at least part of the purified water input into the water storage tank to be quickly heated;

The control method further includes:

And in a second mode, stopping inputting the purified water in the water purification module into the water storage tank when the hot water is output and the liquid level of the water in the inner cavity of the water storage tank is larger than a preset liquid level.

Preferably, the control method further includes:

When the temperature of the water in the inner cavity of the water storage tank is reduced to a first preset temperature, the first heating element is started to heat the water in the water storage tank until the second preset temperature is reached.

Preferably, the first heating element is arranged on the water storage tank and extends into the inner cavity of the water storage tank;

The control method further includes:

When the liquid level of the water in the inner cavity of the water storage tank is lower than or equal to the preset liquid level, the purified water generated by the water purification module is input into the water storage tank, and after the liquid level of the water in the water storage tank exceeds the first heating element, the first heating element is started to heat the water in the water storage tank.

Preferably, the water supply system includes:

a warm water output waterway which is communicated with the other end of the second runner;

The control method further includes:

When the warm water is required to be output, outputting the hot water in the inner cavity of the water storage tank through the second runner and the warm water output waterway; meanwhile, purified water in the water purification module is input into the water storage tank through the first flow channel, and when the purified water flows through the first flow channel, the temperature of the hot water flowing through the second flow channel is reduced.

Preferably, the purified water in the water purification module is input into the water storage tank after passing through the first flow passage and the flow guiding component, and when the purified water flows through the flow guiding component, the flow guiding component is controlled so that at least part of the purified water input into the water storage tank is quickly heated.

Preferably, the water supply system includes:

A driving pump disposed upstream of the second flow passage and the hot water output waterway to drive water in the water storage tank to be output from an outlet of the water storage tank;

The control method comprises the following steps:

When the temperature of warm water to be output is increased, controlling the flow of the driving pump to be increased when the warm water to be output is needed;

when the temperature of the warm water to be outputted is lowered, the flow rate of the driving pump is controlled to be reduced when the warm water is required to be outputted.

Preferably, the control method includes:

When the temperature of water to be output is between the hot water temperature and the highest temperature of the warm water which can be output, outputting the hot water in the inner cavity of the water storage tank through the hot water output waterway, and outputting the hot water in the inner cavity of the water storage tank through the second runner and the warm water output waterway.

Preferably, the water supply system includes:

the cold water output waterway can be communicated with the outlet of the water purification module;

The control method comprises the following steps:

When cold water is required to be output, the purified water in the water purification module is output through a cold water output waterway.

A water heating apparatus, the water heating apparatus comprising:

the inner cavity of the water storage tank is used for storing water;

A first heating element for heating water in the water storage tank;

The inlet of the flow guiding component is used for inputting water, the outlet of the flow guiding component is communicated with the inner cavity of the water storage tank so as to input water flowing out of the outlet of the flow guiding component into the inner cavity of the water storage tank, and the flow guiding component is used for guiding the input water to a region close to the first heating element so that the first heating element can rapidly heat at least part of purified water.

A heating method using the above water heating apparatus, the heating method comprising:

when the hot water is required to be output, outputting the hot water in the inner cavity of the water storage tank;

when hot water is output, the supplemented cold water is input into the water storage tank after passing through the flow guiding component, at least part of the water flowing through the flow guiding component and before flowing into the water storage tank is quickly heated, or at least part of the water flowing out of the flow guiding component and flowing into the inner cavity of the water storage tank is quickly heated by starting the first heating element.

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

The water supply system can heat the purified water in the water storage tank to be boiled through the first heating element, and then, when a user needs the water supply system to output hot purified water, the water supply system can output hot water in the water storage tank to supply the user through the hot water output waterway. Meanwhile, the water guiding component inputs the purified water output by the water purifying module into the inner cavity of the water storage tank, the water guiding component can enable the water input into the inner cavity of the water storage tank to be heated rapidly so as to reach a higher temperature, and further, the temperature of the outputted hot water can be close to or equal to that of the outputted hot water, for example, the water guiding component can guide at least part of purified water generated by the water purifying module to an area close to the first heating element so as to enable the first heating element to heat at least part of the purified water rapidly so as to reach the higher temperature. Through the mode, when the water supply system supplies hot water outwards, the water purification module can quickly heat purified water input into the water storage tank through the flow guide component to be close to or equal to the temperature of the output hot water, so that the water storage tank can output more hot water at one time, the effect of expanding the water storage tank is achieved, the possibility that a user needs to wait when needing more hot water at one time is reduced, and the user experience is improved.

Specific embodiments of the invention are disclosed in detail below with reference to the following description and drawings, indicating the manner in which the principles of the invention may be employed. It should be understood that the embodiments of the invention 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 invention, and are not particularly limited. Those skilled in the art with access to the teachings of the present invention can select a variety of possible shapes and scale sizes to practice the present invention as the case may be.

FIG. 1 is a schematic diagram of a water supply system according to an embodiment of the present invention in a first type of implementation;

FIG. 2 is a schematic diagram of a water supply system according to an embodiment of the present invention in a second type of implementation;

FIG. 3 is a block diagram of a first embodiment of a flow directing member and a first heating element in accordance with an embodiment of the present invention;

FIG. 4 is a block diagram of the flow directing member and first heating element of FIG. 3 at another angle;

FIG. 5 is a block diagram of a flow directing member and a first heating element in a second embodiment of the present invention;

FIG. 6 is a block diagram of the flow directing member and first heating element of FIG. 5 at another angle;

FIG. 7 is a block diagram of a flow directing member and a first heating element in a third embodiment of the present invention;

FIG. 8 is a block diagram of the flow directing member and first heating element of FIG. 7 at another angle;

FIG. 9 is a block diagram of a flow directing member and a first heating element in a fourth embodiment of the invention;

FIG. 10 is a block diagram of the flow directing member and first heating element of FIG. 9 at another angle;

FIG. 11 is a schematic diagram of a water supply system in another embodiment of the present invention;

fig. 12 is a schematic view showing the structure of a water supply system according to still another embodiment of the present invention.

Reference numerals of the above drawings:

1. A water purifying module; 101. a pre-filtration filter element; 102. fine filtration filter element; 103. a booster pump; 2. a water storage tank; 21. a fixing member; 3. a first heating element; 31. a first section first heating element; 32. a second section first heating element; 33. a region; 4. a flow guiding member; 41. a flow guiding pipe; 42. a sleeve body; 43. a communication member; 44. an instant heating unit; 5. a hot water output waterway; 6. a heat exchanger; 61. a first flow passage; 62. a second flow passage; 7. a warm water output waterway; 8. a first control unit; 9. a cold water output waterway; 10. a second control unit; 11. driving a pump; 12. a water inlet valve; 13. a water output mechanism; 14. a one-way valve.

Detailed Description

The details of the invention will be more clearly understood in conjunction with the accompanying drawings and description of specific embodiments of the invention. The specific embodiments of the invention described herein are for purposes of illustration only and are not to be construed as limiting the invention in any way. Given the teachings of the present invention, one of ordinary skill in the related art will contemplate any possible modification based on the present invention, and such should be considered to be within the scope of the present invention. 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 of how to increase the total amount of hot water output from the water storage tank when hot water is supplied to a user, a water supply system is proposed in the present application, and fig. 1 is a schematic diagram of a structure of the water supply system in a first type of implementation manner in an embodiment of the present application, and as shown in fig. 1, the water supply system may include: a water purification module 1 for producing purified water; the water storage tank 2 is used for receiving and storing the purified water generated by the water purification module 1; a first heating element 3, the first heating element 3 being for heating water in the water storage tank 2; a flow guiding member 4, an inlet of the flow guiding member 4 is communicated with an outlet of the water purifying module 1, an outlet of the flow guiding member 4 is communicated with an inner cavity of the water storage tank 2 to input water flowing out from the outlet of the flow guiding member 4 into the inner cavity of the water storage tank 2, and the flow guiding member 4 is used for guiding at least part of purified water generated by the water purifying module 1 to a region 33 close to the first heating element 3 so that the first heating element 3 can rapidly heat at least part of the purified water; and the hot water output waterway 5 is communicated with the water storage tank 2.

The water supply system in the present application can heat the purified water in the water storage tank 2 to be boiled through the first heating element 3, and then, when the user needs the water supply system to output the hot purified water, the water supply system can supply the hot water in the water storage tank 2 to the user through the hot water output waterway 5. At the same time, the flow guiding component 4 inputs the purified water output by the water purifying module 1 into the inner cavity of the water storage tank 2, the flow guiding component 4 can enable the water input into the inner cavity of the water storage tank 2 to be quickly heated so as to reach a higher temperature, and further, the temperature of the outputted hot water can be close to or equal to that of the water, for example, the flow guiding component 4 can guide at least part of the purified water generated by the water purifying module 1 to the area 33 close to the first heating element 3 so as to enable the first heating element 3 to quickly heat at least part of the purified water so as to reach the higher temperature. Through the above mode, when the water supply system supplies hot water outwards, the water purification module 1 can quickly heat purified water input into the water storage tank 2 through the flow guide component 4 to be close to or equal to the temperature of the output hot water, so that the water storage tank 2 can output more hot water at one time, the effect of expanding the capacity of the water storage tank 2 is achieved, the possibility that a user needs to wait when needing more hot water at one time is reduced, and the user experience is improved.

In order to better understand the water supply system of the present application, it will be further explained and illustrated below. As shown in fig. 1, the water purification module 1 is for providing purified water to the outside. As a practical matter, the water purification module 1 may purify the input raw water to form purified water and output the purified water to the outside. For example, the water purification module 1 may include a filtering unit for filtering raw water to generate purified water. Fig. 11 is a schematic view showing the structure of a water supply system according to another embodiment of the present application, and as shown in fig. 11, the filter unit may include various types of filter cartridges, for example, may include at least one of the following: a pre-filter cartridge 101, a fine filter cartridge 102, a post-filter cartridge, etc. The fine filter element 102 is a filter element for fine filtering water, and may be, for example, a reverse osmosis filter element, a nanofiltration filter element, an ultrafiltration filter element, or the like. Different types of filter cartridges may form a composite cartridge. The pre-filter cartridge 101, post-filter cartridge may also be in the form of a composite cartridge, for example, at least two different filter materials may be included in the pre-filter cartridge 101. In order to increase the rate at which water is filtered in the filter unit, the water purification module 1 may include a booster pump 103. The inlet of the water purification module 1 is used for being connected with a water source. The water supply system may include a water inlet valve 12, the water inlet valve 12 being used to control the on-off of the water supply system to a water source. As applicable, the inlet valve 12 may be provided upstream of the water purification module 1 or may be provided in the water purification module 1. In other possible embodiments, the water purification module 1 may be used to store a quantity of purified water, which may output the stored purified water outwards. For example, the water purification module 1 may include a water purification storage unit for storing water purification. The water storage tank 2 is used for storing water. The water storage tank 2 may be a tank body capable of storing water, or may be other devices capable of storing water, and is not limited in any way in the present application. The first heating element 3 is used to heat the water stored in the water storage tank 2. Further, the water storage tank 2 can play a role in heat preservation of hot water. The first heating element 3 may heat and boil water stored in the water storage tank 2 to obtain boiled hot water. For example, the first heating element 3 may take the form of an electric heater, which has the advantage of a high heating power and a high speed, although other types of heating devices may be used for the first heating element 3, and the application is not limited thereto. The first heating element 3 may be disposed in the inner cavity of the water storage tank 2, or may be capable of conducting heat with the wall surface of the water storage tank 2, so as to heat water in the inner cavity of the water storage tank 2 through the wall surface of the water storage tank 2. The inlet of the flow guiding component 4 can be communicated with the outlet of the water purifying module 1. The outlet of the diversion component 4 is communicated with the inner cavity of the water storage tank 2. The purified water output by the water purification module 1 can be input into the inner cavity of the water storage tank 2 after passing through the flow guide part 4. In this process, the flow guide member 4 enables the water input into the inner cavity of the water storage tank 2 to be rapidly heated.

In the above-described process, the rapid heating of the water inputted into the inner chamber of the water storage tank 2 is specifically understood to be rapid heating of the water inputted into the inner chamber of the water storage tank 2 in a short time, for example, several seconds, ten seconds, or more. The water inputted into the inner cavity of the water storage tank 2 can be rapidly heated to a high temperature, for example, a temperature of 80 degrees celsius or more, a temperature of 85 degrees celsius or more, etc. Further, the water inputted into the inner chamber of the water storage tank 2 can be rapidly heated to a higher temperature, for example, a temperature of approximately 98 degrees, at which time, the temperature of the outputted hot water is approximately or equal.

In one possible embodiment, the rapid heating is at least as fast as 0.00012 kelvin per liter of water per second for a corresponding heating power per watt. In this embodiment, the water inputted into the inner chamber of the water storage tank 2 can be rapidly heated to a temperature close to or equal to the outputted hot water, i.e., a temperature close to about 98 degrees celsius.

As shown in fig. 1 and 11, the hot water output waterway 5 communicates with the water storage tank 2. When the user needs the water supply system to output hot purified water, the water supply system may supply the hot water output in the water storage tank 2 to the user through the hot water output waterway 5. Meanwhile, the water guide part 4 inputs the purified water output by the water purification module 1 into the inner cavity of the water storage tank 2, and the water guide part 4 can enable the water input into the inner cavity of the water storage tank 2 to be rapidly heated so as to reach a temperature close to or equal to the temperature of the output hot water. Here, the flow guiding member 4 allows the water input into the inner cavity of the water storage tank 2 to be rapidly heated to a boiling or close to a boiling temperature. For example, the water input into the inner cavity of the water storage tank 2 can be quickly heated by the diversion component 4 and then input into the inner cavity of the water storage tank 2, and for example, the water input into the inner cavity of the water storage tank 2 can be quickly heated by the first heating element 3 and then reach the temperature close to or equal to the output hot water. In the above manner, the water supply system can rapidly heat the purified water inputted into the water storage tank 2 through the water guide member 4 to a temperature close to or equal to the outputted hot water while the water purification module 1 is supplying the hot water to the outside. Therefore, the water storage tank 2 can output more hot water at one time, the capacity expansion effect of the water storage tank 2 is achieved, a user can obtain more hot water at one time, the possibility that the user needs to wait when needing more hot water at one time is reduced, and the user experience is improved.

In general, the heating power of the first heating element 3 is limited, and the flow rate of water supplied to the inner cavity of the water storage tank 2 is smaller than the flow rate of hot water supplied to the user by the hot water output waterway 5 under the condition of meeting the heating requirement, so that the capacity expansion effect of the water storage tank 2 can be achieved to a certain extent in the above manner. If the heating power of the first heating element 3 can reach a great value at this time, so that the flow rate of the water supplied to the inner cavity of the water storage tank 2 is equal to or greater than the flow rate of the hot water supplied to the user by the hot water output waterway 5 under the condition of meeting the heating requirement, the water storage tank 2 can supply the user with the hot water continuously through the hot water output waterway 5 in theory. For the above reasons, the water supply system may have a first mode in which the first heating element 3 is in a heated state, hot water in the water storage tank 2 is outputted through the hot water output waterway 5, and at the same time, the guide member 4 guides at least part of the purified water generated by the water purification module 1 flowing into the water storage tank 2 to a region near the first heating element 3; the water flow of the hot water in the water storage tank 2 is larger than the water flow of the water flow guiding component 4 input into the inner cavity of the water storage tank 2.

Further, if the water to be input into the inner cavity of the water storage tank 2 is rapidly heated to a temperature close to or equal to the output hot water, i.e. a temperature close to about 98 degrees celsius, the water flow of the hot water output from the water storage tank 2 will be much greater than the water flow of the water guide member 4 input into the inner cavity of the water storage tank 2 in the first mode. For example, when the water flow rate of the hot water in the water storage tank 2 is 2L/min, the water flow rate of the water flow guiding component 4 input into the inner cavity of the water storage tank 2 is only 0.4L/min.

For example, the water flow rate of the hot water in the water storage tank 2 is 2L/min, the water flow rate of the guide component 4 input into the inner cavity of the water storage tank 2 is 0.4L/min, the maximum hot water amount stored in the water storage tank is 2L, by adopting the process, the hot water meeting the temperature requirement can be output by more than 2L under the condition that the water storage tank 2 outputs the hot water at the normal level (namely 2L/min), and the hot water output by the water storage tank 2 can reach 2.4L under the condition that the hot water output by the water storage tank 2 outputs the hot water at the normal level. Thus, the total amount of the hot water output by the water storage tank 2 at one time is increased, and the capacity expansion effect of the water storage tank 2 is achieved. Further, after that, the water storage tank 2 is not maintained to output hot water at a normal flow rate since the hot water stored therein is substantially exhausted or is little. However, since the water supplied to the water storage tank 2 is supplied to the region close to the first heating element 3, the water can be quickly heated to a high temperature by the first heating element 3 immediately after flowing out of the flow guide member 4 by the heating action of the first heating element 3, so that the water storage tank 2 can maintain a water flow rate of 0.4L/min and always supply hot water to the outside. So that the total amount of hot water that the water storage tank 2 can output at one time can be further increased. As a possibility, after that, when the user does not take the hot water any more, that is, the water supply system stops supplying the hot water to the outside, the water supply system performs the water replenishing operation again, and waits for the user to supply the hot water to the outside again after the water replenishing is completed and after the heating operation is completed.

In order to allow the water introduced into the inner cavity of the water storage tank 2 to be rapidly heated by the flow guide member 4, the flow guide member 4 may have various embodiments.

As a possibility, in a first class of embodiments, as shown in fig. 1, the flow guiding member 4 may be used to guide at least part of the purified water produced by the water purification module 1 to the area 33 close to the first heating element 3 to enable the first heating element 3 to rapidly heat at least part of the purified water. In this embodiment, the flow guiding member 4 may be at least partially disposed in the inner cavity of the water storage tank 2. The first heating element 3 may be arranged on the water storage tank 2 and extend into the interior cavity of the water storage tank 2. The first heating element 3 may be an electric heating tube at least partially inserted into the inner cavity of the water storage tank 2. The first heating element 3 serves to rapidly heat the water flowing out of the flow guiding member 4 to a region 33 adjacent to the first heating element 3. The region 33 enables rapid heating of the clean water close to the first heating element 3. The outlet of the flow guiding element 4 is capable of guiding at least part of the clean water flowing into the water storage tank 2 to the zone 33 for rapid heating.

As a possibility, as shown in fig. 1, the flow guiding member 4 may include a flow guiding tube 41, an inlet of the flow guiding tube 41 may protrude out of the water storage tank 2 to be connected with an outlet of the water purification module 1, and an outlet of the flow guiding tube 41 may be located in the above-mentioned region 33. The flow guide 41 is used for guiding at least part of the purified water fed from the water purification module 1 to the inlet of the flow guide member 4 to the area 33 near the first heating element 3. In the heated state of the first heating element 3, the temperature of the area 33 in the vicinity of the first heating element 3 is high, and when a small amount of water output from the flow guiding member 4 is guided to a certain place of the area 33, the small amount of water is instantaneously and rapidly heated to a temperature close to or equal to the temperature of the output hot water.

The greater the heating power of the first heating element 3, the greater the distance from the surface of the first heating element 3 that the vicinity of the first heating element 3 forms a zone 33 that can rapidly heat the water. The extent of the region 33 corresponds to the heating power of the first heating element 3, in particular in the interval range of 0.08 mm/watt from the outer surface of the first heating element 3.

Preferably, the draft tube 41 may be made of a material having a high thermal conductivity so that the purified water can obtain a better preheating effect when the purified water flows in the draft tube 41. Of course, in other possible embodiments, the flow guiding tube 41 may also be made of a material with a low thermal conductivity, which is not limited in the present application.

When the first heating element 3 is arranged on the water storage tank 2 and protrudes into the interior of the water storage tank 2, the flow guide 41 can, as a possibility, be wound around the first heating element 3 in the circumferential direction. Meanwhile, the guide pipe 41 also extends along the extending direction of the first heating element 3 when being wound on the first heating element 3, so that purified water output by the guide pipe 41 can be uniformly dispersed to different positions of the first heating element 3, and the rapid heating effect of the purified water is ensured.

As a possible embodiment, when the first heating element 3 is disposed on the water storage tank 2 and extends into the inner cavity of the water storage tank 2, fig. 3 is a structural diagram of the flow guiding component and the first heating element in the first embodiment of the present invention, and fig. 4 is a structural diagram of the flow guiding component and the first heating element in fig. 3 at another angle, where at least part of the flow guiding pipe 41 may also extend along the extending direction of the first heating element 3, as shown in fig. 3 and 4. In this way, the purified water output by the flow guiding pipe 41 can be uniformly dispersed to different positions of the first heating element 3, so as to ensure the rapid heating effect on the purified water.

As a possible implementation, fig. 5 is a structural diagram of the flow guiding component and the first heating element in the second embodiment of the present invention, fig. 6 is a structural diagram of the flow guiding component and the first heating element in fig. 5 at another angle, as shown in fig. 5 and fig. 6, the flow guiding component 4 may be bent and then extend back and forth along the extending direction of the first heating element 3 and are disposed close to the first heating element 3, so that more flow guiding components 4 may be distributed near the first heating element 3, on one hand, the preheating effect on the water in the flow guiding component 4 may be improved, on the other hand, the range of the purified water output by the flow guiding pipe 41 dispersed to different positions of the first heating element 3 may be further improved, and the effect that the water output to the inner cavity of the water storage tank 2 is quickly heated may be further improved.

In order to achieve that the purified water output from the flow guide tube 41 can be uniformly dispersed to different positions of the first heating element 3, the outlet of the flow guide member 4 may include: the flow guide member 4 outputs water in the flow guide 41 into the region 33 through a plurality of through holes provided in the side wall of the flow guide 41 and distributed along the extending direction of the first heating element 3. Further, the through hole is generally opened toward the direction of the first heating element 3, so that water flowing out of the through hole flows to the surface of the first heating element 3, and the effect of rapidly heating the water output to the inner cavity of the water storage tank 2 is further improved. Correspondingly, one end of the guide pipe 41 is in a blocking state, so that a large amount of water in the guide pipe 41 flows out from one end of the guide pipe 41, and the rapid heating of the water cannot be ensured. In other possible embodiments, one end of the flow guiding tube 41 may be tapered, or one end of the flow guiding tube 41 forms an outlet with a smaller flow cross section, so that the flow of water flowing out of the one end of the flow guiding tube 41 is smaller, for example, is close to the flow of water flowing out of the through hole.

In a possible embodiment, as shown in fig. 3 and 4, at least part of the first heating element 3 may be substantially U-shaped. The first heating element 3 comprises a first segment of first heating elements 31 and a second segment of first heating elements 32 in parallel. In the above embodiment, the draft tube 41 may be located between the first stage first heating element 31 and the second stage first heating element 32. For example, at least a portion of the draft tube 41 may extend in the direction of extension of the first segment first heating element 31 or the second segment first heating element 32. It should be noted that, the flow guiding tube 41 may be located between the first section first heating element 31 and the second section first heating element 32, specifically, the flow guiding tube 41 may be located between the upper sides of the first section first heating element 31 and the second section first heating element 32, the flow guiding tube 41 may be located between the lower sides of the first section first heating element 31 and the second section first heating element 32, and the flow guiding tube 41 may also be located between the same plane where the first section first heating element 31 and the second section first heating element 32 are located. In this embodiment, the water output from the flow guide pipe 41 can be heated by both the first stage first heating element 31 and the second stage first heating element 32, so that the water is heated more rapidly and the sufficiency of the rapid heating is improved.

Further, the flow guiding member 4 with the through hole may be located above the first heating element 3, and the through hole is generally opened downward, so that the water flowing out of the through hole flows downward and then flows upward after being heated to a certain extent, and the above flowing process can ensure that the water has more time to be sufficiently and quickly heated in the area 33 formed by the first heating element 3.

As a possible implementation, fig. 7 is a structural diagram of the flow guiding component and the first heating element in the third embodiment of the present invention, and fig. 8 is a structural diagram of the flow guiding component and the first heating element in fig. 7 at another angle, where, as shown in fig. 7 and fig. 8, the flow guiding component 4 may include: a sleeve 42 sleeved outside the first heating element 3, wherein a region 33 is formed in the sleeve 42; a communication member 43, the communication member 43 communicating the inside of the casing 42 with the inlet of the flow guiding member 4. The communicating piece 43 is used for guiding the purified water output by the water purifying module 1 to the sleeve body 42 in the water storage tank 2. Through the sleeve body 42, the purified water output by the water purification module 1 can flow into the sleeve body 42 and then stay in the area 33 for enough time, so that the water can be sufficiently and quickly heated, and the water cannot flow out of the area 33 by random diffusion, so that the quick heating effect cannot be ensured.

For example, the sleeve 42 and the portion of the first heating element 3 sleeved on the sleeve 42 extend in the horizontal direction, the first end of the sleeve 42 is in a blocking state, the second end of the sleeve 42 is in an open state, and the communicating part 43 is relatively closer to the first end of the sleeve 42 at the communicating position of the sleeve 42. Since the first end of the casing 42 is in a sealed state, the purified water inputted into the casing 42 from the communicating member 43 can flow only in the second end direction of the casing 42 to flow out, and in this process, the inputted purified water can have more time in the region 33 formed in the casing 42, so that the effect of being rapidly heated by the first heating element 3 can be improved, and the rapid heating to a temperature close to or equal to the temperature of the outputted hot water when flowing out from the casing 42 can be ensured as much as possible.

Further, fig. 9 is a structural diagram of the flow guiding component and the first heating element in the fourth embodiment of the present invention, and fig. 10 is a structural diagram of the flow guiding component and the first heating element in another angle in fig. 9, where, as shown in fig. 9 and 10, the height from the upper end surface of the first end of the sleeve 42 to the upper end surface of the second end of the sleeve 42 is in an ascending trend. By the mode, water vapor possibly appearing in the sleeve body 42 can be effectively discharged, the situation that the water vapor is accumulated in the sleeve body 42 to form a gaseous region 33 is avoided, and the first heating element 3 cannot be in contact with liquid water in the water storage tank 2 locally, so that the rapid heating effect of the first heating element 3 on input water is affected.

For another example, the sleeve 42 and the portion of the first heating element 3 sleeved on the sleeve 42 extend in the horizontal direction, and the first end of the sleeve 42 is in an open state, and the second end of the sleeve 42 is in an open state. In this way, it is ensured that, as far as possible, water vapor may be present in the sleeve 42 and may be discharged from at least one of the two ends of the sleeve 42, and that the gaseous region 33 formed by accumulation of water vapor is relatively difficult to be present at any one end of the sleeve 42.

Further, the communication between the communication member 43 and the sleeve 42 may be located at or near the middle between the first end and the second end of the sleeve 42. So that the purified water fed into the housing 42 through the communication member 43 can be sufficiently and rapidly heated regardless of the flow direction to the first end or the second end.

As a practical matter, as shown in fig. 3 to 6, 9 and 10, the water storage tank 2 is provided with a fixing piece 21, and the fixing piece 21 is used for fixing the diversion component 4 so as to improve stability and firmness of the diversion component 4. For example, one end of the fixing member 21 is fixedly connected to the wall surface of the water storage tank 2, and the other end of the fixing member 21 is connected to the flow guiding member 4, for example, to the end of the flow guiding member 4 away from the inlet thereof.

Further, in the vertical direction, the height from the upper end surface of the communicating part 43 at the communicating position with the sleeve body 42 to the upper end surface of the first end and/or the second end of the sleeve body 42 is in an ascending trend. In this way, any water vapor that may be present in the enclosure 42 may be effectively vented, avoiding the presence of the gaseous region 33 anywhere within the enclosure 42.

In other possible embodiments, fig. 2 is a schematic structural diagram of the water supply system according to the second type of embodiment of the present invention, and as shown in fig. 2, the diversion component 4 may be located outside the inner cavity of the water storage tank 2, where the outlet of the diversion component 4 is communicated with the inlet of the water storage tank 2.

For example, as a possibility, in a second class of embodiments, as shown in fig. 2, the flow guiding member 4 may comprise an instant heating unit 44 with a second heating element. The second heating element is used for heating the water flowing through the instant heating unit 44, so that the water input to the inner cavity of the water storage tank 2 by the diversion part 4 is rapidly heated by the instant heating unit 44.

When the user needs the water supply system to output hot purified water, the water supply system may supply the hot water output in the water storage tank 2 to the user through the hot water output waterway 5. Meanwhile, the purified water outputted from the water purification module 1 is inputted into the instant heating unit 44, the instant heating unit 44 rapidly heats the purified water flowing through by the second heating element so that the temperature can reach a temperature close to or equal to the temperature of the outputted hot water, and then the heated purified water is inputted into the inner cavity of the water storage tank 2. By the mode, the water storage tank 2 can output more hot water at one time, so that the capacity expansion effect of the water storage tank 2 is achieved.

As a possibility, as shown in fig. 11, the water supply system may include: the heat exchanger 6 having a first flow passage 61 and a second flow passage 62, wherein the fluid flowing through the first flow passage 61 is capable of exchanging heat with the fluid flowing through the second flow passage 62. The inlet of the flow guiding member 4 may be communicated with the outlet of the water purifying module 1 through the first flow passage 61, and one end of the second flow passage 62 may be communicated with the water storage tank 2. The water supply system may include: a warm water output waterway 7, the warm water output waterway 7 being communicated with the other end of the second flow passage 62.

When the user needs warm water, the warm water in the water storage tank 2 can flow out to be used by the user after passing through the second flow passage 62 and the warm water output waterway 7 in sequence. Meanwhile, the purified water generated by the water purifying module 1 can be supplemented into the inner cavity of the water storage tank 2 through the flow guiding component 4 after passing through the first flow channel 61. The purified water flowing through the first flow passage 61 can cool the hot water flowing through the second flow passage 62, thereby obtaining warm water, which can flow out through the warm water output waterway 7 for use by a user. The purified water flowing through the first flow passage 61 can be preheated to a certain extent, so that the temperature of the purified water fed into the flow guiding member 4 is increased. This not only enables the water supply system to output warm water that has been boiled, but also saves the amount of electricity required to heat the purified water replenished into the water storage tank 2. On the basis of the heating power of the same first heating element 3 or the second heating element, a greater flow of purified water supplied to the water storage tank 2 can be rapidly heated to a temperature close to or equal to the temperature of the outputted hot water.

In order to control whether the water in the water storage tank 2 flows into the second flow path 62 and the warm water output waterway 7, or into the hot water output waterway 5, or into the second flow path 62 and the warm water output waterway 7, or the hot water output waterway 5 at the same time, according to the needs of the user, as a possible water supply system includes: the first control unit 8, the first control unit 8 is used for controlling the water in the water storage tank 2 to flow into the second flow channel 62 and the warm water output waterway 7, or the water in the water storage tank 2 to flow into the hot water output waterway 5, or the water in the water storage tank 2 to flow into the second flow channel 62 and the warm water output waterway 7 and the hot water output waterway 5 at the same time.

For example, as shown in fig. 11, the first control unit 8 may include a switching valve, which may be provided at a junction of an inlet of the second flow passage 62 and an inlet of the hot water output waterway 5. The outlet of the water storage tank 2 is communicated with the inlet of a switching valve, one outlet of the switching valve is communicated with the inlet of the second flow passage 62, and the other outlet of the switching valve is communicated with the inlet of the hot water output waterway 5. For another example, the first control unit 8 may include a first on-off valve, which may be provided at the second flow passage 62, and a second on-off valve, which may be provided on the hot water output waterway 5.

As a possibility, as shown in fig. 11, the hot water output waterway 5 and the warm water output waterway 7 downstream may be combined into a common waterway. In this embodiment, the switching valve is provided at a merging position where the hot water output waterway 5 and the warm water output waterway 7 are merged to form a common waterway.

As a possibility, as shown in fig. 11, the water supply system may include: the pump 11 is driven. The driving pump 11 may be disposed upstream of the second flow path 62 and the hot water output waterway 5 to enable driving the water of the water storage tank 2 to be output from the outlet of the water storage tank 2. In this embodiment, the pump 11 may be driven to drive the water of the water storage tank 2 to flow to the second flow passage 62 of the heat exchanger 6 or the hot water output waterway 5 according to specific requirements. When only the hot water output waterway 5 is present, the driving pump 11 may be disposed at an arbitrary position downstream of the outlet of the water storage tank 2.

Further, the flow rate of the driving pump 11 can be adjusted, so that the degree to which the hot water output by the water storage tank 2 is cooled in the heat exchanger 6 can be controlled by adjusting the flow rate of the driving pump 11, and the temperature of the hot water output by the hot water output waterway 7 can be controlled. For example, as the temperature of the water outputted from the warm water output waterway 7 is higher, the flow rate of driving the pump 11 is greater; the lower the temperature of the water outputted from the warm water output waterway 7, the smaller the flow rate of driving the pump 11.

As a possibility, as shown in fig. 11, the water supply system may include: a one-way valve 14. When the flow guiding member 4 is at least partially disposed in the inner cavity of the water storage tank 2, the one-way valve 14 may be disposed between the outlet of the water purification module 1 and the inlet of the flow guiding member 4. The one-way valve 14 can be conducted from the outlet of the water purification module 1 to the inlet of the diversion component 4. Further, a one-way valve 14 may be provided between the outlet of the first flow channel 61 and the inlet of the flow guiding member 4. When the flow guiding member 4 includes the instant heating unit 44 having the second heating element, the check valve 14 may be disposed between the outlet of the instant heating unit 44 and the inlet of the water storage tank 2. As a possible way, fig. 12 is a schematic structural diagram of a water supply system in still another implementation manner according to an embodiment of the present invention, and as shown in fig. 12, the water supply system may include: and the cold water output waterway 9, and the cold water output waterway 9 can be communicated with the outlet of the water purification module 1. The water supply system can directly supply cool purified water to the user through the cold water output waterway 9. In order to control whether the cold water outputted from the water purification module 1 is supplied to the cold water output waterway 9 or the first flow channel 61 of the heat exchanger 6, as shown in fig. 12, the water supply system may include: and a second control unit 10, wherein the second control unit 10 is used for controlling the purified water output by the outlet of the water purifying module 1 to flow into the cold water output waterway 9, or the purified water output by the outlet of the water purifying module 1 to flow into the first flow channel 61, or the purified water output by the outlet of the water purifying module 1 to flow into the cold water output waterway 9 and the first flow channel 61 at the same time. Similarly, the second control unit 10 may have various forms, and may be one switching valve or two on-off valves.

As a possibility, as shown in fig. 12, the cold water output waterway 9 may be used in connection with the water output mechanism 13. The hot water output waterway 5 may be adapted to be connected to the water output mechanism 13. The warm water output waterway 7 may be used to connect with the water output mechanism 13. The water output mechanism 13 may be a mechanism such as a faucet for outputting water for use by a user, and the water output mechanism 13 may output purified water at different temperatures for use by the user. As a possibility, the water supply system may comprise the above-mentioned water output mechanism 13.

The application also provides a control method of the water supply system, and the control method can be applied to any water supply system as well as other feasible water supply systems. The control method may include the steps of:

When the hot water is required to be output, the hot water in the inner cavity of the water storage tank 2 is output through the hot water output waterway 5.

When the hot water is output, the purified water in the water purification module 1 is input into the water storage tank 2 after passing through the flow guide part 4, and the flow guide part 4 enables at least part of the purified water input into the water storage tank 2 to be rapidly heated.

In this step, the flow guiding means 4 may cause at least part of the purified water input into the water storage tank 2 to be heated up quickly to the temperature of the water in the water storage tank 2, i.e. to a temperature close to or equal to the temperature of the hot water output. Through the process, the water storage tank 2 can output more hot water at one time, so that the capacity expansion effect of the water storage tank 2 is achieved. Especially when the hot water stored in the inner cavity of the water storage tank 2 is boiled hot water, the diversion component 4 can enable at least part of the purified water input into the water storage tank 2 to be quickly heated to a temperature close to the boiling temperature, so that the water storage tank 2 outputs a larger amount of boiled or nearly boiled hot water at one time. Through the steps, the capacity expansion effect of the water storage tank 2 can be achieved, the possibility that a user needs to wait when needing a large amount of hot water at one time is reduced, and the user experience is improved.

When the diversion component 4 includes the instant heating unit 44 with the second heating element, the second heating element is used for rapidly heating the water flowing through the instant heating unit 44, in this step, when the hot water is output, the purified water in the water purification module 1 is input into the water storage tank 2 after passing through the diversion component 4, and at this time, the second heating element can be turned on to heat, so that the water flowing through the instant heating unit 44 is rapidly heated and then input into the inner cavity of the water storage tank 2.

In another way, in this step, at the time of outputting hot water, the purified water in the water purifying module 1 is input into the water storage tank 2 after passing through the flow guiding component 4, and at this time, the first heating element 3 may be turned on to heat, so that at least part of the purified water generated by the water purifying module 1 is guided by the flow guiding component 4 to the area 33, close to the first heating element 3, in the water storage tank 2, and at least part of the purified water is quickly heated by the first heating element 3.

As a possibility, the water supply system may have a first mode and a second mode. The user may set the water supply system to be in the first mode or the second mode as desired. In the control method of the water supply system, in the first mode, when hot water is output, purified water generated by the water purification module 1 is input into the inner cavity of the water storage tank 2 after passing through the flow guiding component 4, and the flow guiding component 4 enables at least part of the purified water input into the water storage tank 2 to be quickly heated, namely, the first heating element 3 is in a heating state. When the water supply system is in the first mode, the water supply system can be provided with the function of expanding the water storage tank 2 by the control method. The control method may include: in the second mode, when hot water is output and the liquid level of water in the inner cavity of the water storage tank 2 is larger than the preset liquid level, the water purification in the water purification module 1 is stopped from being input into the water storage tank 2. When the water supply system is in the second mode, the water supply system does not have the function of expanding the water storage tank 2, and purified water in the water purification module 1 is input into the water storage tank 2 only when the liquid level of the water in the inner cavity of the water storage tank 2 is smaller than or equal to a preset liquid level so as to supplement the water to the water storage tank 2. In the water replenishing process, the water storage tank 2 stops water supply to the outside until the water storage tank 2 is replenished with water and the water storage tank 2 can not supply water to the outside after the water is boiled. The preset level may be understood as a level at which the water storage tank 2 lacks water or cannot continue to supply water to the outside.

As a practical matter, the control method may include the steps of: when the temperature of the water in the inner cavity of the water storage tank 2 is reduced to a first preset temperature, the first heating element 3 is started to heat the water in the water storage tank 2 until the second preset temperature is reached. When the water in the water storage tank 2 is heated to boiling or near boiling, the water storage tank 2 is in a heat preservation state. When the temperature of the water in the inner cavity of the water storage tank 2 slowly drops to a first preset temperature, the first heating element 3 is started to heat the water in the water storage tank 2 until the second preset temperature is reached, so that the water storage tank 2 can keep the stored water at the second preset temperature to the first preset temperature.

As a practical matter, the control method may include the steps of: when the liquid level of the water in the inner cavity of the water storage tank 2 is lower than or equal to the preset liquid level, the purified water generated by the water purification module 1 is input into the water storage tank 2, and after the liquid level of the water in the water storage tank 2 exceeds the first heating element 3, the first heating element 3 is started to heat the water in the water storage tank 2. When the water supply system is used for the first time, namely, when the inner cavity of the water storage tank 2 is empty, purified water can be supplemented into the water storage tank 2 through the control method, and the water is heated. The above process can save the heating time of the water in the water storage tank 2 and can ensure that the first heating element 3 does not burn dry.

As a practical matter, the control method may include: when the warm water is required to be output, the hot water in the inner cavity of the water storage tank 2 can be output through the second flow passage 62 and the warm water output waterway 7; at the same time, the purified water in the water purification module 1 is inputted into the water storage tank 2 through the first flow passage 61, and the hot water flowing through the second flow passage 62 is cooled down when the purified water flows through the first flow passage 61. The control method can output the boiled warm water and save the electric quantity required for heating the purified water supplemented into the water storage tank 2. In addition, it is also possible to make a larger flow of purified water replenished into the water storage tank 2 be quickly heated to a temperature close to or equal to the output hot water.

Further, in this step, the flow guide member 4 may be controlled such that at least part of the purified water inputted into the water storage tank 2 is rapidly heated while the purified water flows through the flow guide member 4.

Further, the control method may include: when the temperature of the warm water to be outputted is increased, the flow rate of the driving pump 11 is controlled to be increased when the warm water to be outputted is required. When the temperature of the warm water to be outputted is lowered, the flow rate of the driving pump 11 is controlled to be reduced when the warm water is to be outputted. The temperature of the warm water output by the warm water output waterway 7 can be controlled by the control method, so that the requirements of users on different warm water temperatures can be met.

As a practical matter, the control method may include: when the temperature of the water to be output is between the hot water temperature and the highest temperature of the warm water which can be output, the hot water in the inner cavity of the water storage tank 2 can be output through the hot water output waterway 5, and the hot water in the inner cavity of the water storage tank 2 can be output through the second flow passage 62 and the warm water output waterway 7. The user can obtain the hot water output by the hot water output waterway 5 and the warm water output by the warm water output waterway 7 at the same time, and after the hot water output waterway 5 and the warm water output waterway 7 are mixed, water with the temperature between the hot water temperature and the highest temperature of the warm water which can be output can be obtained, so that the temperature range of the water which can be supplied by the water supply system is widened.

As a practical matter, the control method may include: when the cold water is required to be output, the purified water in the water purification module 1 is output through the cold water output waterway 9. By the control method, the water supply system can provide cold purified water for users so as to meet the demands of the users.

In the present application, there is also provided a water heating apparatus, which may include: the inner cavity of the water storage tank 2 is used for storing water; a first heating element 3, the first heating element 3 being for heating water in the water storage tank 2; the inlet of the diversion component 4 is used for inputting water, the outlet of the diversion component 4 is communicated with the inner cavity of the water storage tank 2, so that water flowing out of the outlet of the diversion component 4 is input into the inner cavity of the water storage tank 2, and the diversion component 4 is used for guiding the input water to the area 33 close to the first heating element 3 so that the first heating element 3 can quickly heat at least part of purified water.

The functional roles of the various components of the water heating apparatus may be referred to in the description of the water supply system above and will not be described in detail herein. The water heating device may also include any of the other components described in the water supply system above. The water supply system above may comprise the water heating device. Likewise, the water heating apparatus may have a first mode in which the first heating element 3 is in a heated state, hot water in the water storage tank 2 is outputted to the outside, and at the same time, the flow guide member 4 guides at least part of the purified water generated by the water purification module 1 flowing into the water storage tank 2 to a region near the first heating element 3; the water flow of the hot water in the water storage tank 2 is larger than the water flow of the water flow guiding component 4 input into the inner cavity of the water storage tank 2.

The application also provides a heating method of the water heating device. As a practical matter, the heating method can be applied to any of the above water heating devices, and can also be applied to other practical water heating devices. The heating method may include the steps of:

when the hot water is required to be output, outputting the hot water in the inner cavity of the water storage tank 2;

during hot water output, the supplementary cold water is input into the water storage tank 2 after passing through the diversion component 4, and at least part of the water flowing through the diversion component 4 and before flowing into the water storage tank 2 is quickly heated or at least part of the water flowing out of the diversion component 4 and flowing into the inner cavity of the water storage tank 2 is quickly heated by starting the first heating element 3.

The respective steps in the heating method may be described with reference to the control method of the water supply system, and will not be described herein. The heating method may also include any of the other steps described in the control method of the water supply system above.

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 invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.

Claims

1. A water supply system, the water supply system comprising:

A water purification module for producing purified water;

A first heating element for heating water in the water storage tank;

And the hot water output waterway is communicated with the water storage tank.

2. The water supply system of claim 1, wherein the rapid heating is at least up to a rate of 0.00012 kelvin per liter of water per second for a corresponding heating power per watt.

3. The water supply system of claim 1, wherein the flow directing member is at least partially disposed within the interior cavity of the water storage tank, and wherein the first heating element is disposed on the water storage tank and extends into the interior cavity of the water storage tank.

4. A water supply system according to claim 3, wherein said zone is capable of rapidly heating the purified water adjacent said first heating element; the outlet of the flow guiding component can guide at least part of the purified water flowing into the water storage tank to the area for rapid heating.

5. The water supply system of claim 4, wherein the flow directing member comprises a flow directing tube capable of directing at least a portion of the purified water produced by the water purification module to the area.

6. The water supply system according to claim 4, wherein the area corresponds to a heating power of the first heating element in particular within a range of 0.08 mm/watt from an outer surface of the first heating element.

7. The water supply system according to claim 5, wherein the draft tube is wound around the first heating element in a circumferential direction or at least a part of the draft tube extends in an extending direction of the first heating element.

8. The water supply system of claim 7, wherein the flow guide member is bent to extend back and forth along the extending direction of the first heating element and is disposed adjacent to the first heating element.

9. The water supply system of claim 7, wherein the outlet of the flow directing member comprises: the side wall of the flow guide pipe is provided with a plurality of through holes distributed along the extending direction of the first heating element, and the flow guide part outputs water in the flow guide pipe into the area through the plurality of through holes.

10. The water supply system of claim 9, wherein the through-hole opens generally toward the first heating element.

11. The water supply system according to claim 9, wherein one end of the draft tube is in a blocked state.

12. The water supply system of claim 7 wherein at least a portion of the first heating elements are generally U-shaped, the first heating elements comprising first section first heating elements and second section first heating elements in parallel, the draft tube being located between the first section first heating elements and the second section first heating elements.

13. The water supply system of claim 4, wherein the flow directing member comprises: a sleeve body sleeved outside the first heating element, wherein the sleeve body forms the area; and the communicating piece communicates the inside of the sleeve body with the inlet of the flow guide part.

14. The water supply system according to claim 13, wherein the sleeve and the first heating element portion of the sleeve are both extended in a horizontal direction, the first end of the sleeve is in a blocked state, the second end of the sleeve is in an open state, and the communication portion of the communication member and the sleeve is relatively closer to the first end of the sleeve.

15. The water supply system of claim 14, wherein a height from an upper end surface of the first end of the sleeve to an upper end surface of the second end of the sleeve is in an upward trend.

16. The water supply system of claim 13, wherein the sleeve and the first heating element portion of the sleeve each extend in a horizontal direction, a first end of the sleeve being open, and a second end of the sleeve being open.

17. The water supply system of claim 16, wherein the communication between the communication member and the sleeve is at or near a middle portion between the first and second ends of the sleeve.

18. The water supply system according to claim 16, wherein a height from an upper end surface of a communication portion of the communication member with the housing to an upper end surface of the first end and/or the second end of the housing in a vertical direction is in an upward trend.

19. The water supply system of claim 1, wherein the flow directing member is located outside the interior cavity of the water storage tank, and wherein the outlet of the flow directing member is in communication with the inlet of the water storage tank.

20. The water supply system of claim 19, wherein the flow directing member comprises an instant heating unit having a second heating element;

21. The water supply system according to claim 1, wherein the water supply system has a first mode in which the first heating element is in a heating state, hot water in the water storage tank is output to the outside through a hot water output waterway, and at the same time, the flow guide member guides at least part of water flowing into the water storage tank to a region near the first heating element; the water flow of the hot water in the water storage tank which is output outwards is larger than the water flow of the water flow guiding component which is input into the inner cavity of the water storage tank.

22. The water supply system according to claim 1, wherein the water supply system comprises:

23. The water supply system of claim 22, wherein the water supply system comprises:

24. The water supply system of claim 22, wherein the water supply system comprises:

25. The water supply system of claim 24, wherein the water supply system comprises:

26. The water supply system of claim 22, wherein the water supply system comprises:

27. The water supply system of claim 26, wherein the flow rate of the drive pump is adjustable.

28. The water supply system according to claim 27, wherein the flow rate of the driving pump is greater as the temperature of the water outputted from the warm water output waterway is higher; the flow rate of the driving pump is smaller as the temperature of the water outputted from the warm water output waterway is lower.

29. The water supply system according to claim 1, wherein the water purification module includes a filtering unit for filtering raw water to generate purified water;

Or alternatively, the first and second heat exchangers may be,

30. A control method of a water supply system as claimed in claim 1, characterized in that the control method comprises:

31. The control method of claim 30, wherein the flow directing means causes at least a portion of the purified water input into the water storage tank to be rapidly heated to the temperature of the water in the water storage tank.

32. The control method of claim 30, wherein the flow directing member comprises an instant heating unit having a second heating element for rapidly heating water flowing through the instant heating unit;

33. The control method according to claim 30, wherein the step of the diversion member causing at least part of the purified water input into the water storage tank to be rapidly heated comprises:

34. The control method according to claim 30, wherein in the first mode, at the time of hot water output, purified water generated by the water purification module is input into the inner cavity of the water storage tank through the flow guiding member, and the flow guiding member causes at least part of the purified water input into the water storage tank to be rapidly heated;

The control method further includes:

35. The control method according to claim 34, characterized in that the control method further comprises:

36. The control method of claim 34, wherein the first heating element is disposed on the water storage tank and extends into an interior cavity of the water storage tank;

The control method further includes:

37. The control method according to claim 30, wherein the water supply system includes:

The control method further includes:

38. The control method according to claim 37, wherein the purified water in the purified water module is introduced into the water storage tank through the first flow passage and the flow guide member, and the flow guide member is controlled such that at least part of the purified water introduced into the water storage tank is rapidly heated while the purified water flows through the flow guide member.

39. The control method according to claim 37, wherein the water supply system includes:

The control method comprises the following steps:

40. The control method according to claim 39, characterized in that the control method comprises:

41. The control method according to claim 30, wherein the water supply system includes:

The control method comprises the following steps:

42. A water heating apparatus, characterized in that the water heating apparatus comprises:

the inner cavity of the water storage tank is used for storing water;

A first heating element for heating water in the water storage tank;

43. A heating method using the water heating apparatus as set forth in claim 42, wherein the heating method comprises: