CN115200212A

CN115200212A - Water purification equipment and control method

Info

Publication number: CN115200212A
Application number: CN202210828369.6A
Authority: CN
Inventors: 杨华; 龚圆杰; 张涛; 曾敏炽; 张兴致; 何海; 周栋; 范婷; 王佳贝
Original assignee: Guangdong Chunmi Electrical Technology Co Ltd
Current assignee: Guangdong Chunmi Electrical Technology Co Ltd
Priority date: 2022-07-13
Filing date: 2022-07-13
Publication date: 2022-10-18

Abstract

The invention provides water purification equipment and a control method, wherein the water purification equipment comprises a water supply structure, a heating structure, a water outlet structure and a heat exchange and energy storage structure; the inlet end of the heating structure is communicated with the outlet end of the water supply structure; the water outlet structure is communicated with the outlet end of the heating structure; the heat exchange energy storage structure is provided with a first passage state and a second passage state, and in the first passage state, the heat exchange energy storage structure is communicated with the outlet end of the heating structure and the inlet end of the heating structure, and absorbs the heat of hot water flowing through the heat exchange energy storage structure; when the second passage is in the second passage state, the heat exchange energy storage structure is communicated with the outlet end of the water supply structure and the inlet end of the heating structure, and heats water flowing through the heat exchange energy storage structure. The technical problem of the prior art that the whole working power is high due to the fact that the hot water outflow speed of the water purifying equipment is increased by adding the hot tank is solved.

Description

Water purification equipment and control method

Technical Field

The invention relates to the technical field of water purification equipment, in particular to water purification equipment and a control method.

Background

As a novel water purification product, the water purification device integrates the functions of water purification, drinking and heating. Along with the improvement of living standard of people, people pay more and more attention to the problem of water quality safety and sanitation, so that the trend of equipping water purifying equipment for families is developed.

The water purifying equipment in the prior art is provided with a hot tank besides a heat pipe, wherein the hot tank is heated to heat water in the hot tank to a preset temperature, and then the heat pipe is used for heating the water for the second time, so that the outflow speed of hot water is increased; but at the same time, the whole working power of the water purifying device is increased.

Disclosure of Invention

The invention aims to provide a water purifying device and a control method thereof, and aims to solve the technical problem that the whole working power is higher due to the fact that a hot water tank is added to improve the hot water outflow speed of the water purifying device in the prior art.

In a first aspect, the present invention provides a water purification apparatus comprising: a water supply structure;

the inlet end of the heating structure is communicated with the outlet end of the water supply structure;

the water outlet structure is communicated with the outlet end of the heating structure;

the heat exchange and energy storage structure is provided with a first passage state and a second passage state, and in the first passage state, the heat exchange and energy storage structure is communicated with the outlet end of the heating structure and the inlet end of the heating structure, and absorbs the heat of hot water flowing through the heat exchange and energy storage structure; and when the second passage is in the state, the heat exchange energy storage structure is communicated with the outlet end of the water supply structure and the inlet end of the heating structure, and heats water flowing through the heat exchange energy storage structure.

As an embodiment of the invention, the water purifying device further comprises a leading-out structure, and the leading-out structure is communicated with the water outlet end of the heating structure.

As an embodiment of the present invention, an end of the guiding structure far away from the water outlet end of the heating structure is communicated with the water supply structure.

As an embodiment of the present invention, the heating structure includes a heat pipe, a first pipeline, a first switch valve, and a flow control pump;

one end of the first pipeline is communicated with the water outlet end of the water supply structure, the other end of the first pipeline is communicated with the water inlet end of the instant heat pipe, and the first switch valve and the flow control pump are arranged on the first pipeline.

As an embodiment of the present invention, the flow control pump is located between the first switch valve and the instant pipe;

the heat exchange and energy storage structure comprises a heat exchange and energy storage assembly, a second pipeline assembly, a third pipeline assembly and a fourth pipeline assembly; the heat exchange and energy storage assembly is provided with a first water gap and a second water gap which are communicated with each other; the second pipeline assembly comprises a second pipeline and a second switch valve, one end of the second pipeline is communicated with the first water port, the other end of the second pipeline is communicated with the water outlet end of the instant heating pipe, and the first switch valve is arranged on the second pipeline; one end of the third pipeline assembly is communicated with the second water gap, and the other end of the third pipeline assembly is communicated with the pipe part of the first pipeline positioned at the inlet end of the first switch valve and the outlet end of the water supply structure; the fourth pipeline assembly comprises a fourth pipeline and a fourth switch valve, one end of the fourth pipeline is communicated with the first water port, the other end of the fourth pipeline is communicated with a pipe part of the first pipeline, which is positioned between the first switch valve and the flow control pump, and the fourth switch valve is arranged on the fourth pipeline;

when the heat exchange and energy storage structure is in the first passage state, the second switch valve is opened, and the fourth switch valve is closed; when the heat exchange energy storage structure is in the second passage state, the second switch valve is closed, and the fourth switch valve is opened.

As an embodiment of the present invention, the heat exchange energy storage structure further includes an energy storage temperature sensor, and the energy storage temperature sensor is disposed on the heat exchange energy storage assembly.

As an embodiment of the invention, the heat exchange and energy storage assembly comprises a shell, a heat exchange pipe and a heat exchange and energy storage medium; the heat exchange tube is arranged in the shell, one end of the heat exchange tube penetrates out of the shell to form the first water gap, the other end of the heat exchange tube penetrates out of the shell to form the second water gap, the heat exchange energy storage medium is filled in the shell, and the heat exchange energy storage medium is used for absorbing heat of hot water in the heat exchange tube or preheating water in the heat exchange tube.

As an embodiment of the present invention, the heat exchange tube has a serpentine structure.

As an embodiment of the present invention, an outer wall surface of the casing and/or an inner wall surface of the casing is provided with a heat insulating layer.

As an embodiment of the present invention, the water supply structure includes a filter assembly, a water supply pipe, and a water supply switching valve; the water inlet of the filtering component is used for introducing raw water, the pure water outlet of the filtering component is communicated with one end of the water supply pipe, the other end of the water supply pipe is communicated with the inlet end of the heating structure and the heat exchange and energy storage structure, the water supply switch valve is arranged on the water supply pipe, and the water supply switch valve is used for controlling the on-off of the water supply pipe.

As an embodiment of the present invention, the water purifying apparatus further comprises a wastewater structure including a wastewater pipe and a wastewater switch valve, one end of the wastewater pipe is communicated with the wastewater outlet of the filter assembly, and the other end of the wastewater pipe is used for discharging wastewater; the waste water switch valve is arranged on the waste water pipe and used for controlling the on-off of the waste water pipe.

In a second aspect, the present invention also provides a control method of the water purifying apparatus of the first aspect, including:

when a first hot water taking instruction is received, the heat exchange and energy storage structure is closed, and the water supply structure, the heating structure and the water outlet structure are opened, so that the water supply structure, the heating structure and the water outlet structure are communicated in sequence;

when a water taking instruction is not received, executing an energy storage step, wherein the energy storage step comprises closing the water supply structure and the water outlet structure, opening the heating structure and the heat exchange energy storage structure, and switching the heat exchange energy storage structure to a first passage state, so that the heat exchange energy storage structure is communicated with the outlet end of the heating structure and the inlet end of the heating structure;

when a second hot water taking instruction is received, executing a second water outlet step, wherein the second water outlet step comprises the steps of opening the water supply structure, the heating structure and the heat exchange and energy storage structure, cutting off the communication between the water supply structure and the heating structure, and switching the heat exchange and energy storage structure to a second passage state to enable the water supply structure, the heat exchange and energy storage structure and the heating structure to be sequentially communicated; and opening the water outlet structure to communicate the water outlet structure with the heating structure.

As an embodiment of the invention, the water purifying apparatus further comprises a guiding structure, wherein the guiding structure is communicated with the water outlet end of the heating structure;

before the starting of the water outlet structure to communicate the water outlet structure with the heating structure, the second water outlet step further includes:

closing the water outlet structure, and opening the leading-out structure to enable the leading-out structure to be communicated with the heating structure;

and after the preset standard time, closing the derivation structure.

As an embodiment of the present invention, the energy storing step further includes:

detecting the temperature of the heat exchange and energy storage structure to obtain a temperature detection value;

judging whether the temperature detection value is larger than a preset target value, if so, executing a first difference judgment step, and if not, executing a second difference judgment step;

a first difference value judging step of judging whether a difference value obtained by subtracting the preset target value from the temperature detection value is larger than a preset first floating value or not, and if so, closing the heating structure;

and a second difference value judgment step of judging whether the difference value obtained by subtracting the temperature detection value from the preset target value is larger than a preset second floating value or not, and if so, starting the heating structure.

The embodiment of the invention has the following beneficial effects:

in the invention, water flowing out of the outlet end of the water supply structure flows into the heating structure for heating, and then flows into the water outlet structure from the outlet end of the heating structure, so that the hot water with normal flow rate is taken; when a user does not need to take water, the heat exchange energy storage structure is started, the heat exchange energy storage structure is switched to a first passage state, hot water flowing out of the water outlet end of the heating structure can flow into the heat exchange energy storage structure, the heat exchange energy storage structure absorbs heat of the hot water flowing through the heat exchange energy storage structure, the cooled water is guided to the inlet end of the heating structure to be heated in the next round, and the water flows out of the outlet end of the heating structure again to flow into the heat exchange energy storage structure, so that the heat storage capacity of the heat exchange energy storage structure is improved; when the user needs large-traffic connect to get hot water, switch over heat transfer energy storage structure to second passageway state, the water that comes out from water supply structure's exit end flows into heat transfer energy storage structure earlier, the storage has thermal heat transfer energy storage structure can heat the water wherein flowing through, in order to realize preheating water, the water that will preheat the completion again leads to the entrance point of heating structure, make the heating structure carry out the reheating to water, hot water flows to water outlet structure from the exit end of heating structure at last, realize large-traffic hot water and connect to get. The invention fully utilizes the idle time of the water purifying equipment to store heat and preheats water in the next water taking process, thereby improving the heating speed of hot water and the water outlet flow rate of the hot water, and solving the technical problem of higher overall working power caused by increasing the hot water outflow speed of the water purifying equipment by adding a hot tank in the prior art.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a water purifying apparatus according to an embodiment of the present invention;

fig. 2 is a flow chart of a control method of a water purification apparatus according to an embodiment of the invention.

Wherein: 100. a water purification unit; 10. a water supply structure; 11. a filter assembly; 12. a water supply pipe; 13. a water supply switch valve; 20. a heating structure; 21. namely a heat pipe; 22. a first pipeline; 23. a first on-off valve; 24. a flow control pump; 25. an inlet water temperature sensor; 26. an effluent temperature sensor; 30. a water outlet structure; 31. a water outlet pipe; 32. a water outlet switch valve; 40. a heat exchange and energy storage structure; 41. the heat exchange and energy storage assembly; 411. a housing; 412. a heat exchange pipe; 413. a heat exchange and energy storage medium; 42. a second pipe assembly; 421. a second pipeline; 422. a second on-off valve; 43. a third pipeline assembly; 44. a fourth pipeline assembly; 441. a fourth pipeline; 442. a fourth switching valve; 45. an energy storage temperature sensor; 50. a wastewater structure; 51. a waste pipe; 52. a waste water switch valve; 60. exporting the structure; 61. a delivery pipe; 62. and (4) leading out the switch valve.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

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 invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, the present invention provides a water purifying apparatus 100, which includes a water supply structure 10, a heating structure 20, a water outlet structure 30 and a heat exchange and energy storage structure 40; the inlet end of the heating structure 20 is communicated with the outlet end of the water supply structure 10; the water outlet structure 30 is communicated with the outlet end of the heating structure 20; the heat exchange and energy storage structure 40 has a first passage state and a second passage state, in the first passage state, the heat exchange and energy storage structure 40 is communicated with both the outlet end of the heating structure 20 and the inlet end of the heating structure 20, and the heat exchange and energy storage structure 40 absorbs heat of hot water flowing through the heat exchange and energy storage structure; in the second passage state, the heat exchange energy storage structure 40 is communicated with the outlet end of the water supply structure 10 and the inlet end of the heating structure 20, and the heat exchange energy storage structure 40 heats water flowing through the heat exchange energy storage structure.

In the invention, the water flowing out from the outlet end of the water supply structure 10 flows into the heating structure 20 for heating, and then flows into the water outlet structure 30 from the outlet end of the heating structure 20, so that the hot water with normal flow rate is taken; when a user does not need to take water, the heat exchange and energy storage structure 40 is started, the heat exchange and energy storage structure 40 is switched to the first passage state, hot water flowing out of the water outlet end of the heating structure 20 flows into the heat exchange and energy storage structure 40, the heat exchange and energy storage structure 40 absorbs heat of the hot water flowing through the heat exchange and energy storage structure, the cooled water is guided to the inlet end of the heating structure 20 to be heated in the next round, and flows out of the outlet end of the heating structure 20 again to flow into the heat exchange and energy storage structure 40, so that the heat storage capacity of the heat exchange and energy storage structure 40 is improved; when the user needs large-traffic when getting hot water of connecing, switch heat transfer energy storage structure 40 to the second passageway state, the water that comes out from the exit end of water supply structure 10 flows into heat transfer energy storage structure 40 earlier, the storage has thermal heat transfer energy storage structure 40 and can heat the water wherein flowing through, in order to realize preheating water, the water that will preheat the completion again leads to the entrance point of heating structure 20, make heating structure 20 heat water once more, hot water flows to play water structure 30 from the exit end of heating structure 20 at last, realize large-traffic hot water and connect and get. The invention fully utilizes the idle time of the water purifying device 100 to store heat and preheats water in the next water taking process, thereby improving the heating speed of hot water and the water outlet flow rate of the hot water, and solving the technical problem of higher overall working power caused by increasing the hot water outflow speed of the water purifying device 100 by adding a hot tank in the prior art.

In one embodiment, the water purifying device 100 further comprises a guiding structure 60, wherein the guiding structure 60 is communicated with the water outlet end of the heating structure 20.

According to the water purifying equipment, water circularly flows between the heating structure 20 and the heat exchange energy storage structure 40 to store energy and preheat, therefore, multiple times of rolling water are easy to occur in energy storage, in order to avoid a user from receiving and taking the multiple times of rolling water from the water purifying equipment 100, the water outlet structure 30 is firstly closed and the guide structure 60 is opened before the hot water is discharged at a high flow speed, so that the water supply structure 10, the heat exchange energy storage structure 40, the heating structure 20 and the guide structure 60 are sequentially communicated, and the multiple times of rolling water in the heat exchange energy storage structure 40 and the heating structure 20 is discharged through the guide structure 60; after the preset standard time (for example, 5 s), the water in the heat exchange energy storage structure 40 and the heating structure 20 is completely drained, the guiding structure 60 is closed, the water outlet structure 30 is opened, the water outlet structure 30 is communicated with the heating structure 20, and the hot water formed by preheating through the heat exchange energy storage structure 40 and reheating through the heating structure 20 flows out through the water outlet structure 30.

In some specific embodiments, the end of the guiding structure 60 away from the water outlet end of the heating structure 20 is communicated with the water supply structure 10, i.e. thousands of rolls of water are guided to the water supply structure 10 to be mixed for the next round of use.

In some specific embodiments, the outlet structure 60 includes an outlet pipe 61 and an outlet switch valve 62 disposed on the outlet pipe 61, and the outlet switch valve 62 is used for controlling the opening and closing of the outlet pipe 61.

Referring to fig. 1, the heating structure 20 includes a heat pipe 21, a first pipeline 22, a first switch valve 23, and a flow control pump 24; one end of the first pipeline 22 is communicated with the water outlet end of the water supply structure 10, the other end of the first pipeline 22 is communicated with the water inlet end of the instant heat pipe 21, and the first switch valve 23 and the flow control pump 24 are both arranged on the first pipeline 22.

When a user needs to take hot water at a normal flow, the first switch valve 23 is opened to enable the first pipeline 22 to be in a smooth state, the flow control pump 24 is started to pump water from the water outlet end of the water supply structure 10 into the instant heating pipe 21 for heating, and the heated hot water flows to the water outlet structure 30 from the water outlet end of the instant heating pipe 21; when the user does not need to collect water, the first switch valve 23 is closed to disconnect the first pipeline 22, so that the communication between the first pipeline 22 and the water supply structure 10 is disconnected, and the flow control pump 24 stops working and does not pump water flow.

In one embodiment, referring to fig. 1, the heating structure 20 further includes an inlet water temperature sensor 25 and an outlet water temperature sensor 26, the inlet water temperature sensor 25 is disposed at the inlet end of the heat pipe 21, and the outlet water temperature sensor 26 is disposed at the outlet end of the heat pipe 21.

Namely, the inlet water temperature sensor 25 detects the temperature of the water which does not enter the instant heat pipe 21, and the outlet water temperature sensor 26 detects the temperature of the water which comes out of the instant heat pipe 21; controlling the heating power of the heat pipe 21 according to the outlet water temperature set by the user and the real-time inlet water temperature detected by the inlet water temperature sensor 25; the real-time outlet water temperature detected by the outlet water temperature sensor 26 is compared with the outlet water temperature set by the user, so that the heating power of the heat pipe 21 is corrected, and when the real-time outlet water temperature is judged to be higher than the outlet water temperature set by the user, the heating power of the heat pipe 21 is correspondingly reduced; when the real-time outlet water temperature is lower than the outlet water temperature set by the user, the heating power of the heat pipe 21 is correspondingly increased.

In one embodiment, referring to fig. 1, the flow control pump 24 is located between the first switch valve 23 and the heat pipe 21; the heat exchange and energy storage structure 40 comprises a heat exchange and energy storage assembly 41, a second pipeline assembly 42, a third pipeline assembly 43 and a fourth pipeline assembly 44; the heat exchange and energy storage assembly 41 is provided with a first water gap and a second water gap which are communicated with each other; the second pipeline assembly 42 comprises a second pipeline 421 and a second switch valve 422, one end of the second pipeline 421 is communicated with the first water inlet, the other end of the second pipeline 421 is communicated with the water outlet end of the heat pipe 21, and the first switch valve 23 is arranged on the second pipeline 421; one end of the third pipeline assembly 43 is communicated with the second water gap, and the other end of the third pipeline assembly 43 is communicated with the pipe part of the first pipeline 22 at the inlet end of the first switch valve 23 and the outlet end of the water supply structure 10; the fourth pipe assembly 44 includes a fourth pipe 441 and a fourth switching valve 442, one end of the fourth pipe 441 is communicated with the first water gap, the other end of the fourth pipe 441 is communicated with a pipe portion of the first pipe 22 between the first switching valve 23 and the flow control pump 24, and the fourth switching valve 442 is disposed on the fourth pipe 441; wherein, when the heat exchange energy storage structure 40 is in the first passage state, the second switch valve 422 is opened, and the fourth switch valve 442 is closed; when the heat exchange energy storage structure 40 is in the second passage state, the second switch valve 422 is closed, and the fourth switch valve 442 is opened.

Specifically, when the user needs to receive hot water at a normal flow rate, the first switch valve 23 is opened, the second switch valve 422 and the fourth switch valve 442 are both closed, and the flow control pump 24 pumps water flowing out from the outlet end of the water supply structure 10, so that the water sequentially passes through the first switch valve 23, the flow control pump 24, the inlet water temperature sensor 25, i.e., the heat pipe 21 and the outlet water temperature sensor 26, and finally flows out from the outlet structure 30; when a user does not need to take hot water, and the water purification device 100 is in an idle state, the fourth switch valve 442 is closed, the second switch valve 422 is opened, the second pipeline 421, the first water gap, the second water gap and the third pipeline assembly 43 are sequentially communicated, at this time, the heat exchange energy storage structure 40 is in a first passage state, the first water gap of the heat exchange energy storage structure 40 is communicated with the outlet end of the heat pipe 21 through the unobstructed second pipeline 421, the second water gap of the heat exchange energy storage structure 40 is communicated with the first pipeline 22 through the third pipeline assembly 43, and at the same time, the first switch valve 23 is opened to enable the first pipeline 22 to be in an unobstructed state, so that the flow control pump 24 is started to pump water in the heat pipe 21, namely the outlet end of the heat pipe 21, the second pipeline 421, the first water gap, the second pipeline assembly 42, the first switch valve 23, the flow control pump 24, the inlet water temperature sensor 25 and the inlet end of the heat pipe 21, so that hot water heated by the heat pipe 21 circulates through the heat exchange energy storage assembly 41, so that the temperature of the heat exchange heat pipe 41 is increased; when a user needs to take hot water at a large flow rate, the second switch valve 422 is closed, the fourth switch valve 442 is opened, the third pipeline assembly 43, the second water gap, the first water gap and the fourth pipeline 441 are sequentially communicated, at this time, the heat exchange energy storage structure 40 is in the second-way state, meanwhile, the first switch valve 23 is closed, the water outlet end of the water supply structure 10 is disconnected from the first pipeline 22, and the water outlet end of the water supply structure 10 is communicated with the second water gap, so that when the flow control pump 24 works, water flowing out of the water outlet end of the water supply structure 10 sequentially passes through the third pipeline assembly 43, the second water gap, the first water gap, the fourth pipeline 441, the flow control pump 24, the water inlet temperature sensor 25, namely the heat pipe 21, the water outlet temperature sensor 26 and the water outlet structure 30 under the pumping action of the flow control pump 24, so that water flowing out of the water outlet structure 30 firstly passes through the preheating of the heat exchange energy storage assembly 41 and the heating of the instantaneous heat pipe 21, thereby increasing the water outlet flow rate of the water outlet structure 30.

In one embodiment, referring to fig. 1, the heat exchange and energy storage structure 40 further includes an energy storage temperature sensor 45, and the energy storage temperature sensor 45 is disposed on the heat exchange and energy storage assembly 41.

Specifically, when the energy storage temperature sensor 45 detects that the heat exchange and energy storage assembly 41 is heated to T + Δ T1, that is, the heat pipe 21 and the flow control pump 24 stop working, that is, the heat pipe 21 does not heat water any more, the flow control pump 24 does not pump water into the heat exchange and energy storage assembly 41 any more, the temperature of the heat exchange and energy storage assembly 41 is high enough, the heat exchange efficiency of the heat exchange and energy storage assembly 41 is relatively low, and at this time, the heat exchange and energy storage assembly 41 is not subjected to heat exchange and energy storage; when the energy storage temperature sensor 45 detects that the heat exchange and energy storage assembly 41 is cooled to T-delta T2, namely the heat pipe 21 starts to work to heat water, the flow control pump 24 starts to pump hot water to flow through the heat exchange and energy storage assembly 41 so as to improve the temperature of the heat exchange and energy storage assembly 41; wherein, T is a preset energy storage standard value of the heat exchange energy storage assembly 41, Δ T1 is an upper floating value of T, and Δ T2 is a lower floating value of T.

In some specific embodiments, T is set to 85 ℃.

In some specific embodiments, Δ T1 is 0.5 ℃ to 10 ℃ and Δ T2 is 0.5 ℃ to 5 ℃.

Referring to fig. 1, the heat exchange energy storage assembly 41 includes a shell 411, a heat exchange pipe 412 and a heat exchange energy storage medium 413; the heat exchange tube 412 is disposed in the housing 411, one end of the heat exchange tube 412 penetrates through the housing 411 to form the first water gap, the other end of the heat exchange tube 412 penetrates through the housing 411 to form the second water gap, the heat exchange energy storage medium 413 is filled in the housing 411, and the heat exchange energy storage medium 413 is used for absorbing heat of hot water in the heat exchange tube 412 or preheating water in the heat exchange tube 412.

Specifically, hot water is introduced into the heat exchange tube 412 through the first water gap, so that the hot water is in full contact with the heat exchange energy storage medium 413 outside the heat exchange tube 412, and the heat exchange energy storage medium 413 absorbs heat of the hot water in the heat exchange tube 412; and the water after heat exchange is led out of the heat exchange tube 412 through the second water gap.

In some embodiments, the preheating medium may be water, an aqueous solution of a substance dissolved in water for raising the boiling point of water, oil or an oil-water mixture, or the like.

In some specific embodiments, referring to fig. 1, the heat exchange tubes 412 have a serpentine configuration. By setting the shape of the heat exchange pipe 412, the length of the heat exchange pipe 412 contacting with the heat exchange energy storage medium 413 is increased, and the path of water flowing through the heat exchange pipe 412 is increased, so that the water is fully contacted with the heat exchange energy storage medium 413, and the heat exchange efficiency and the energy storage capacity of the heat exchange energy storage medium 413 are increased.

In some embodiments, an insulation layer (not shown) is disposed on an outer wall surface of the housing 411 and/or an inner wall surface of the housing 411. The heat dissipation capacity of the heat exchange energy storage medium 413 is reduced by arranging the heat insulation layer, so that the preheating efficiency of the subsequent heat exchange energy storage medium 413 on water is improved.

Referring to fig. 1, the water supply structure 10 includes a filter assembly 11, a water supply pipe 12, and a water supply switching valve 13; the water inlet of the filtering component 11 is used for introducing raw water, the pure water outlet of the filtering component 11 is communicated with one end of the water supply pipe 12, the other end of the water supply pipe 12 is communicated with the inlet end of the heating structure 20 and the heat exchange and energy storage structure 40, the water supply switch valve 13 is arranged on the water supply pipe 12, and the water supply switch valve 13 is used for controlling the on-off of the water supply pipe 12.

Specifically, the third piping assembly 43 is communicated with the water supply pipe 12; when the heat exchange and energy storage structure 40 needs to be subjected to heat exchange and energy storage, the water supply switch valve 13 is closed to cut off the communication between the water supply pipe 12 and the third pipeline assembly 43, so that the water flowing out of the third pipeline assembly 43 flows to the first pipeline 22; when it is necessary to take in hot water, the water supply switching valve 13 is opened again to make the water supply pipe 12 in a clear state.

Referring to fig. 1, the water purifying apparatus 100 further includes a waste water structure 50, the waste water structure 50 including a waste water pipe 51 and a waste water switch valve 52, one end of the waste water pipe 51 communicating with the waste water outlet of the filter assembly 11, and the other end of the waste water pipe 51 discharging waste water; the waste water switch valve 52 is arranged on the waste water pipe 51, and the waste water switch valve 52 is used for controlling the on-off of the waste water pipe 51.

When it is necessary to discharge the wastewater, the wastewater switch valve 52 is opened so that the wastewater pipe 51 is in an open state to discharge the wastewater; when the waste water discharge is not required, the waste water on-off valve 52 is closed.

Referring to fig. 1, the water outlet structure 30 includes a water outlet pipe 31 and a water outlet switch valve 32, one end of the water outlet pipe 31 is communicated with the outlet end of the heat pipe 21, and the other end of the water outlet pipe 31 is used for leading out hot water; the water outlet switch valve 32 is arranged on the water outlet pipe 31, and the water outlet switch valve 32 is used for controlling the on-off of the water outlet pipe 31.

Referring to fig. 2, the present invention also provides a control method of the water purifying apparatus 100, including:

s1, when a first hot water taking instruction is received, executing a first water outlet step, wherein the first water outlet step comprises the steps of closing the heat exchange and energy storage structure 40, and opening the water supply structure 10, the heating structure 20 and the water outlet structure 30 to enable the water supply structure 10, the heating structure 20 and the water outlet structure 30 to be communicated in sequence;

s2, when a water taking instruction is not received, executing an energy storage step, wherein the energy storage step comprises closing the water supply structure 10 and the water outlet structure 30, opening the heating structure 20 and the heat exchange and energy storage structure 40, and switching the heat exchange and energy storage structure 40 to a first passage state, so that the heat exchange and energy storage structure 40 is communicated with the outlet end of the heating structure 20 and the inlet end of the heating structure 20;

s3, when a second hot water taking instruction is received, executing a second water outlet step, wherein the second water outlet step comprises the steps of opening the water supply structure 10, the heating structure 20 and the heat exchange and energy storage structure 40, cutting off the communication between the water supply structure 10 and the heating structure 20, and switching the heat exchange and energy storage structure 40 to a second passage state to enable the water supply structure 10, the heat exchange and energy storage structure 40 and the heating structure 20 to be sequentially communicated; the water outlet structure 30 is opened, so that the water outlet structure 30 is communicated with the heating structure 20.

That is, when a user needs to receive hot water at a normal flow rate, the user inputs a first hot water taking instruction to the water purification apparatus 100, and after receiving the instruction, the water purification apparatus 100 closes the heat exchange and energy storage structure 40, and opens the water supply structure 10, the heating structure 20, and the water outlet structure 30, so that water flowing out of the water supply structure 10 flows into the heating structure 20 to be heated, and then flows into the water outlet structure 30 from an outlet end of the heating structure 20, thereby achieving the hot water receiving at a normal flow rate of the water purification apparatus 100; when a user does not need to receive water, the user does not input any water taking instruction to the water purification device 100, at this time, the water purification device 100 which does not receive the water taking instruction is in an idle state, the water purification device 100 executes an energy storage step to close the water supply structure 10 and the water outlet structure 30, open the heating structure 20 and the heat exchange energy storage structure 40, and switch the heat exchange energy storage structure 40 to a first passage state, so that hot water flowing out of the water outlet end of the heating structure 20 flows into the heat exchange energy storage structure 40, the heat exchange energy storage structure 40 absorbs heat of the hot water flowing through the heat exchange energy storage structure 40, the cooled water is guided to the inlet end of the heating structure 20 to be heated in the next round, and flows out of the outlet end of the heating structure 20 again to flow into the heat exchange energy storage structure 40, and heat storage of the heat exchange energy storage structure 40 is continuously improved; when a user needs to receive hot water at a large flow rate, the user inputs a second hot water taking instruction to the water purification device 100, after the water purification device 100 receives the instruction, the water purification device 100 executes a second water outlet step, the water supply structure 10, the heating structure 20 and the heat exchange energy storage structure 40 are firstly opened, the communication between the water supply structure 10 and the heating structure 20 is cut off, the heat exchange energy storage structure 40 is switched to a second passage state, so that water coming out of the water supply structure 10 flows into the heat exchange energy storage structure 40 firstly, the heat exchange energy storage structure 40 storing heat can heat the water flowing through the heat exchange energy storage structure to preheat the water, and then the preheated water is guided to the inlet end of the heating structure 20, so that the heating structure 20 heats the water again; in addition, the water supply structure 10 is opened, so that the water supply structure 10 is communicated with the outlet end of the heating structure 20, and then the hot water finally flows to the water outlet structure from the outlet end of the heating structure 20, thereby realizing the large-flow hot water receiving and taking of the water purifying device 100.

The implementation of the first water outlet step, the energy storage step and the second water outlet step will be further described with reference to fig. 1; specifically, when the water purifying apparatus 100 performs the first water outlet step, the second switch valve 422 and the fourth switch valve 442 of the heat exchange and energy storage structure 40 are closed, the flow control pump 24 and the first switch valve 23 of the heating structure 20 are opened, and the water supply switch valve 13 of the water supply structure 10 and the water outlet switch valve 32 of the water outlet structure 30 are opened; when the water purifying apparatus 100 performs the energy storing step, the water supply switch valve 13 of the water supply structure 10 is closed, the water outlet switch valve 32 of the water outlet structure 30 is closed, the fourth switch valve 442 of the heat exchange and energy storage structure 40 is closed, the second switch valve 422 of the heat exchange and energy storage structure 40 is opened, and the first switch valve 23 of the heating structure 20 is opened; when the water purifying apparatus 100 performs the second water outlet step, the first switch valve 23 of the heating structure 20 and the second switch valve 422 of the heat exchange energy storage structure 40 are closed, and the water supply switch valve 13 of the water supply structure 10, the fourth switch valve 442 of the heat exchange energy storage structure 40 and the water outlet switch valve 32 of the water outlet structure 30 are opened.

This water purification unit 100 preheats through the circulation flow that comes the energy storage with water between heating structure 20 and heat transfer energy storage structure 40, consequently, appears thousand boiling water easily when the energy storage, for avoiding the user to take thousand boiling water from water purification unit 100, this water purification unit 100's control method provides two kinds of solutions:

in one embodiment, the heating power of the heating structure 20 is controlled not to be higher than the preset target power when the water getting command is not received. The heating power of the heating structure 20 is controlled to prevent the water from boiling to form a thousand-roll water.

In another embodiment, before the step of turning on the water outlet structure 30 to communicate the water outlet structure 30 with the heating structure 20, the second water outlet step further includes:

closing the water outlet structure 30 and opening the leading-out structure 60 to enable the leading-out structure 60 to be communicated with the heating structure 20;

after a preset standard time, the lead-out structure 60 is closed.

In this embodiment, the heating power of the heating structure 20 is not limited, and before hot water is discharged at a high flow rate, the water discharging structure 30 is closed, and the guiding structure 60 is opened, so that the water supplying structure 10, the heat exchange energy storage structure 40, the heating structure 20, and the guiding structure 60 are sequentially communicated, and therefore, the thousand of rolling water in the heat exchange energy storage structure 40 and the heating structure 20 is discharged through the guiding structure 60; after the preset standard time (for example, 5 s), the water in the heat exchange energy storage structure 40 and the heating structure 20 is completely drained, the guiding structure 60 is closed, the water outlet structure 30 is opened, the water outlet structure 30 is communicated with the heating structure 20, and the hot water formed by preheating through the heat exchange energy storage structure 40 and reheating through the heating structure 20 flows out through the water outlet structure 30.

In one embodiment, the step of storing energy further comprises:

detecting the temperature of the heat exchange and energy storage structure 40 to obtain a temperature detection value;

a first difference value determining step of determining whether a difference value obtained by subtracting the preset target value from the temperature detection value is greater than a preset first floating value, and if so, closing the heating structure 20;

a second difference value determining step of determining whether a difference value obtained by subtracting the temperature detection value from the preset target value is greater than a preset second floating value, and if so, turning on the heating structure 20.

Specifically, it is first determined which of the temperature detection value of the heat exchange and energy storage structure 40 and the preset target value of the heat exchange and energy storage structure 40 is larger, and when the temperature detection value is larger than the preset target value, it is further determined whether a difference value obtained by subtracting the preset target value from the temperature detection value is larger than a first floating value, if not, it indicates that the temperature of the heat exchange and energy storage structure 40 can be further increased, the heat exchange efficiency of the heat exchange and energy storage structure 40 is still relatively high, energy can be stored continuously, and the heating structure 20 is kept on, that is, the heat pipe 21 and the flow control pump 24 continue to operate; if yes, it is indicated that the temperature of the heat exchange and energy storage structure 40 is high enough, the heat exchange efficiency of the heat exchange and energy storage structure 40 is relatively low, at this time, the heat exchange and energy storage structure 40 is no longer subjected to heat exchange and energy storage, so as to avoid energy waste of the heating structure 20, the heating structure 20 is turned off, that is, the heat pipe 21 and the flow control pump 24 stop working, that is, the heat pipe 21 is no longer heated, and the flow control pump 24 is no longer pumping water into the heat exchange and energy storage structure 40; when the preset target value is larger than the temperature detection value, further judging whether a difference value obtained by subtracting the temperature detection value from the preset target value is larger than a preset second floating value, if not, indicating that the descending amplitude of the heat exchange energy storage structure 40 is lower, and not needing to store energy again for the heat exchange energy storage structure 40; if, it is great to indicate the descending amplitude of heat transfer energy storage structure 40, is unfavorable for the realization of preheating, needs to carry out the energy storage once more to heat transfer energy storage structure 40, consequently, opens heating structure 20, and heat pipe 21 begins to work and heats water promptly, and flow control pump 24 starts to draw hot water in order to flow through heat transfer energy storage structure 40 to improve heat transfer energy storage structure 40's temperature.

The preset target value, the first floating value and the second floating value can be set according to actual needs.

In some specific embodiments, T is set at 85 ℃,0.5 ≦ Δ T1 ≦ 10 ℃,0.5 ≦ Δ T1 ≦ 5 ℃.

The above examples are only used to illustrate the technical solutions of the present invention, and do not limit the scope of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from these embodiments without making any inventive step, fall within the scope of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art may still make various combinations, additions, deletions or other modifications of the features of the embodiments of the present invention according to the situation without conflict, so as to obtain different technical solutions without substantially departing from the spirit of the present invention, and these technical solutions also fall within the protection scope of the present invention.

Claims

1. A water purification apparatus, comprising:

a water supply structure;

2. The water purification apparatus of claim 1, further comprising a lead-out structure, wherein the lead-out structure is communicated with the water outlet end of the heating structure.

3. The water purification apparatus of claim 2, wherein an end of the outlet structure distal from the water outlet end of the heating structure is in communication with the water supply structure.

4. The water purification apparatus of claim 1, wherein the heating structure comprises a heat pipe, a first pipeline, a first switch valve and a flow control pump;

5. The water purification apparatus of claim 4, wherein the flow control pump is located between the first switching valve and the instant pipe;

6. The water purification unit of claim 5, wherein the heat exchange and energy storage structure further comprises an energy storage temperature sensor, and the energy storage temperature sensor is arranged on the heat exchange and energy storage assembly.

7. The water purification apparatus of claim 5, wherein the heat exchange and energy storage assembly comprises a shell, a heat exchange pipe and a heat exchange and energy storage medium; the heat exchange tube is arranged in the shell, one end of the heat exchange tube penetrates out of the shell to form the first water gap, the other end of the heat exchange tube penetrates out of the shell to form the second water gap, the heat exchange energy storage medium is filled in the shell, and the heat exchange energy storage medium is used for absorbing heat of hot water in the heat exchange tube or preheating water in the heat exchange tube.

8. The water purification apparatus of claim 7, wherein the heat exchange tube has a serpentine structure.

9. The water purification apparatus of claim 7, wherein an insulation layer is provided on an outer wall surface of the housing and/or an inner wall surface of the housing.

10. The water purifying apparatus of claim 1, wherein the water supply structure includes a filtering assembly, a water supply pipe, and a water supply switching valve; the water inlet of the filtering assembly is used for introducing raw water, the pure water outlet of the filtering assembly is communicated with one end of the water supply pipe, the other end of the water supply pipe is communicated with the inlet end of the heating structure and the heat exchange and energy storage structure, the water supply switch valve is arranged on the water supply pipe, and the water supply switch valve is used for controlling the on-off of the water supply pipe.

11. The water purification apparatus of claim 10, further comprising a waste water structure including a waste water pipe and a waste water switch valve, one end of the waste water pipe communicating with the waste water outlet of the filter assembly, the other end of the waste water pipe for discharging waste water; the waste water switch valve is arranged on the waste water pipe and used for controlling the on-off of the waste water pipe.

12. A control method of a water purifying apparatus as claimed in claim 1, comprising:

13. The control method of claim 12, wherein the water purification apparatus further comprises a lead-out structure, the lead-out structure being in communication with a water outlet end of the heating structure;

before the step of starting the water outlet structure to communicate the water outlet structure with the heating structure, the second water outlet step further includes:

and after the preset standard time, closing the derivation structure.

14. The control method according to claim 12, wherein the energy storage step further includes:

and a second difference value judgment step of judging whether a difference value obtained by subtracting the temperature detection value from the preset target value is larger than a preset second floating value or not, and if so, starting the heating structure.