Purified water heating system and water purifier

Abstract

The utility model relates to the technical field of water purification, and discloses a water purification heating system and a water purifier, the water purification heating system specifically comprises a water inlet; the water purification module is connected with the water inlet through a water inlet pipeline; the first end of the double-section heating module is connected with the water purification module through a water purification pipeline; the back-suction valve group is arranged on a back-suction pipeline, one end of the back-suction valve group is connected with the water purification module through the back-suction pipeline, and the other end of the back-suction valve group is connected with the double-section heating module through the back-suction pipeline; the second end of the double-section heating module is connected with the water outlet, and the water purification module is connected with the water outlet through the water purification pipeline; therefore, according to the scheme, hot water can be provided immediately, so that waste of water sources is reduced, and the experience feeling of a user is improved.

Description

Technical Field

[0001] The present application relates to the field of water purification technology, and in particular to a water purification heating system and a water purifier. Background Art

[0002] As people's living standards improve, they pay more and more attention to drinking water health, and water purifiers as health products are gaining more and more attention and are widely used in people's daily lives. The maximum heating power of a general household water purifier can only reach 2200W, so users need to wait for dozens of seconds to get a cup of 300mL of water. In addition, when the user turns off the faucet during actual use of the water purifier, a certain amount of pure water will remain at the end of the water channel, so when the faucet is turned on again, some cold water needs to be drained before hot water can be drunk, which not only causes water loss, but also poor user experience. Summary of the invention

[0003] The present application proposes a water purification heating system and a water purifier, which are used to solve the technical problem in the prior art that when a user connects to hot water, the water initially discharged from the water purifier is the cold water remaining in the hot water discharge channel, and can immediately provide hot water, thereby reducing the waste of water resources and improving the user experience. In order to achieve one or part or all of the above purposes or other purposes, the present application provides a water purification heating system, including:

[0004] Water inlet;

[0005] A water purification module, the water purification module is connected to the water inlet through a water inlet pipeline;

[0006] A two-stage heating module, wherein a first end of the two-stage heating module is connected to the water purification module via a water purification pipeline;

[0007] A back-suction valve group, wherein the back-suction valve group is arranged on the back-suction pipeline, one end of the back-suction valve group is connected to the water purification module through the back-suction pipeline, and the other end of the back-suction valve group is connected to the dual-stage heating module through the back-suction pipeline;

[0008] A water outlet, the second end of the dual-stage heating module is connected to the water outlet, and the water purification module is connected to the water outlet through the water purification pipeline;

[0009] A wastewater outlet is connected to the water purification module through a wastewater pipeline.

[0010] Optionally, in some embodiments of the present application, the suck-back valve assembly includes a first one-way valve and a first solenoid valve;

[0011] Among them, one end of the first solenoid valve is connected to one end of the first one-way valve, the other end of the first solenoid valve is connected to the two-stage heating module through the back-suction pipeline, and the other end of the first one-way valve is connected to the water purification module.

[0012] Optionally, in some embodiments of the present application, a buffer water tank is further provided on the clean water pipeline;

[0013] Wherein, the buffer water tank is arranged before the water purification module and the two-stage heating module, and the first solenoid valve is connected to the buffer water tank through the back-suction pipeline.

[0014] Optionally, in some embodiments of the present application, a first water inlet valve is provided on the water purification pipeline, one end of the first water inlet valve is connected to the water purification module, and the other end of the first water inlet valve is respectively connected to the other end of the first solenoid valve and the buffer water tank.

[0015] Optionally, in some embodiments of the present application, the water purification module includes a filter assembly, a second water inlet valve and a water pump;

[0016] One side of the filter assembly is connected to the water inlet and the wastewater outlet, the other side of the filter assembly is connected to one end of the second water inlet valve, and the water pump is respectively connected to the other end of the second water inlet valve and the filter assembly.

[0017] Optionally, in some embodiments of the present application, the filter assembly includes a composite filter element and a reverse osmosis filter element;

[0018] Among them, one side of the composite filter element is connected to the water inlet, the other side of the composite filter element is connected to one end of the second water inlet valve, the water pump is respectively connected to the other end of the second water inlet valve and one side of the reverse osmosis filter element, and the other side of the reverse osmosis filter element is connected to the wastewater outlet.

[0019] Optionally, in some embodiments of the present application, the water purification module further includes a pressure tank, a reflux valve group, a water quality detector and a high pressure switch;

[0020] Wherein, the pressure tank is connected to the reflux pipeline through a reflux branch, the reflux valve group is arranged on the reflux branch, and the water quality detector and the high-pressure switch are both arranged on the water purification pipeline.

[0021] Optionally, in some embodiments of the present application, a pressure relief valve is further included, and the water outlet and the pressure relief valve are connected to the same side of the dual-stage heating module.

[0022] Optionally, in some embodiments of the present application, the dual-stage heating module includes a diverter valve and a dual-stage heating assembly;

[0023] Among them, the water purification module is connected to the water inlet end of the diverter valve through the water purification pipeline, the first water outlet end of the diverter valve is connected to one end of the two-stage heating component, the other end of the two-stage heating component is connected to the water outlet pipeline, the second water outlet end of the diverter valve is connected to the water outlet pipeline, and the expansion water tank is connected to the other end of the two-stage heating component through the back-suction pipeline and the water purification pipeline.

[0024] Optionally, in some embodiments of the present application, the dual-stage heating module further includes a flow detection component and a temperature detection component;

[0025] Wherein, the flow detection component is arranged on the water purification pipeline, and the temperature detection component is arranged on the water outlet pipeline.

[0026] Optionally, in some embodiments of the present application, the suction back pipeline overlaps with part of the clean water pipeline.

[0027] In a second aspect, a water purifier is provided, comprising the purified water heating system provided in any embodiment of the present application.

[0028] As described above, the present application provides a water purification heating system and a water purifier, the water purification heating system includes a water inlet; a water purification module, the water purification module is connected to the water inlet through a water inlet pipeline; a two-stage heating module, the first end of the two-stage heating module is connected to the water purification module through a water purification pipeline; a back-suction valve group, the back-suction valve group is arranged on the back-suction pipeline, one end of the back-suction valve group is connected to the water purification module through the back-suction pipeline, and the other end of the back-suction valve group is connected to the two-stage heating module through the back-suction pipeline; a water outlet, the second end of the two-stage heating module is connected to the water outlet, and the water purification module is connected to the water outlet through the water purification pipeline; a wastewater outlet, the wastewater outlet is connected to the water purification module through a wastewater pipeline. When the water purifier is making water, a two-stage heating module is used to perform two-stage heating on the pure water in the water circuit. While ensuring a large flow of water supply, the time it takes for the water purifier to produce hot water is reduced, thereby improving the efficiency of hot water supply. In addition, when the water purifier is turned off, the back-suction valve group is opened, and the water remaining at the end of the water circuit can be discharged from the waste water outlet through the back-suction pipe, so that there is no residual water in the discharge channel of the water purifier, ensuring that when the user connects to hot water, the water purifier always discharges hot water, thereby saving water resources and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] in:

[0031] Figure 1 This is a water circuit structure diagram of a first embodiment of a water purification and heating system provided in an embodiment of the present application;

[0032] Figure 2 This is a water circuit structure diagram of a second embodiment of the water purification and heating system provided in the embodiments of the present application;

[0033] Figure 3 This is a water circuit structure diagram of a third embodiment of the water purification and heating system provided in the embodiments of the present application;

[0034] Figure 4 This is a water circuit structure diagram of a fourth embodiment of the water purification and heating system provided in the embodiments of the present application;

[0035] Figure 5 This is a water circuit structure diagram of a fifth embodiment of the water purification and heating system provided in the embodiments of the present application;

[0036] Figure 6 This is a water circuit structure diagram of a sixth embodiment of the water purification and heating system provided in the embodiments of the present application;

[0037] Figure 7 This is a water circuit structure diagram of a seventh embodiment of the water purification and heating system provided in the embodiments of the present application;

[0038] Figure 8 This is a water circuit structure diagram of the eighth embodiment of the water purification and heating system provided in the embodiments of the present application. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0040] In addition, the described features, structures or characteristics may be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced while omitting one or more of the specific details, or other methods, components, devices, steps, etc. may be adopted. In other cases, known structures, methods, devices, implementations, materials or operations are not shown or described in detail to avoid obscuring various aspects of the present disclosure.

[0041] In the present disclosure, unless otherwise clearly specified and limited, the terms "connected", "connection" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be an electrical connection, or it can communicate with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0042] In addition, in the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically limited. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist, such as A and / or B, which may indicate the existence of A alone, B alone, and the simultaneous existence of A and B. The symbol " / " generally indicates that the objects associated with each other are in an "or" relationship. The terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0043] See also Figure 1 , Figure 1 It is a water circuit structure diagram of the first embodiment of the water purification and heating system provided in the embodiments of the present application. The present application provides a water purification and heating system, which includes a water inlet 10, a water purification module 20, a two-stage heating module 30, a back-suction valve group 40, a water outlet 50 and a wastewater outlet 60. Among them, the water purification module 20 is connected to the water inlet 10 through a water purification pipeline, the first end of the two-stage heating module 30 is connected to the water purification module 20 through the water purification pipeline, the back-suction valve group 40 is arranged on the back-suction pipeline, one end of the back-suction valve group 40 is connected to the water purification module 20 through the back-suction pipeline, the other end of the back-suction valve group 40 is connected to the two-stage heating module 30 through the back-suction pipeline, and the wastewater outlet 60 is connected to the water purification module 20 through the wastewater pipeline.

[0044] Among them, the water inlet 10 is used to access tap water, which can be specifically connected to the tap water pipeline, and the water purification module 20 is used to purify the tap water connected to the water inlet 10, which can specifically filter large particle impurities in the water, as well as dissolved solids, dissolved organic matter, heavy metal ions, microorganisms and other pollutants in the water. The two-stage heating module 30 is used to heat the filtered water (hereinafter referred to as pure water). Optionally, in some embodiments, the two-stage heating module 30 can pre-heat the pure water to 80°C, and then heat the water heated to 80°C to 95°C. After the water purifier is turned off (that is, the water purifier stops making water), the back-suction valve group 40 is opened, and the water remaining at the end of the two-stage heating module 30 and / or the water at the end of the water purification pipeline can be discharged from the waste water port 60 through the back-suction pipeline, so that there is no residual water in the discharge channel of the water purifier, ensuring that when the user receives hot water, the water purifier always discharges hot water, thereby saving water resources and improving the user experience.

[0045] Optionally, in some embodiments, the present application defines water greater than or equal to 95° C. as boiling water. The water return outlet 50 can be used to connect to a faucet, which can be a heat exchange faucet or a common faucet, which can be set according to actual conditions and is not limited here.

[0046] Optionally, in some embodiments, the back-suction valve group 40 may include a back-suction valve, a small pump and a first one-way valve. When the water purifier is shut down, the back-suction valve and the first one-way valve are opened, and the water remaining at the end of the dual-stage heating module 30 and / or the water at the end of the clean water pipeline can be discharged from the waste water outlet 60 through the back-suction pipeline through the pressure provided by the small pump.

[0047] Optionally, in some embodiments, see Figure 2 The back-suction valve group 40 can specifically include a first one-way valve 401 and a first solenoid valve 402, wherein one end of the first solenoid valve 402 is connected to one end of the first one-way valve 401, the other end of the first solenoid valve 402 is connected to the two-stage heating module 30 through a back-suction pipeline, and the other end of the first one-way valve is connected to the water purification module 20.

[0048] For further information, see Figure 3 , Figure 3 It is a water circuit structure diagram of the second embodiment of the water purification heating system provided in the embodiment of the present application. The water purification module 20 includes a filter component 201, a second water inlet valve 202 and a water pump 203, wherein one side of the filter component 201 is connected to the water inlet 10 and the wastewater outlet 60, the other side of the filter component 201 is connected to one end of the second water inlet valve 202, and the water pump 203 is respectively connected to the other end of the second water inlet valve 2012 and the filter component 201.

[0049] Specifically, the filter assembly 201 can be used to filter large particles of impurities in tap water, and also to filter soluble solids, soluble organic matter, heavy metal ions, microorganisms and other pollutants in tap water. The water pump 203 is used to press the water source into the filter assembly 201 for filtration, thereby achieving the purpose of purifying the water quality. The main function of the second water inlet valve 202 is to control the water inlet of the water source. When working, the second water inlet valve 202 is opened, and the water source enters from the water inlet 10. After filtering out large particles of impurities through the A side of the filter assembly 201, the filtered water of the initial filtration is obtained; then, the filtered water enters from the B side of the filter assembly 20 under the pressure of the water pump 203, and after filtering out the soluble solids, soluble organic matter, heavy metal ions, microorganisms and other pollutants in the filtered water, pure water is obtained. The pure water can enter the heating module 30 through the water purification pipeline for heating, or it can directly pass through the water purification pipeline to the water outlet 50 to complete the water intake process of the water purifier. After stopping water production, the second water inlet valve 202 is closed, the first one-way valve 401 and the first solenoid valve 402 are opened, and the water remaining at the end of the dual-stage heating module 30 and / or the water at the end of the water purification pipe can be discharged from the waste water outlet 60 through the back-suction pipeline through the suction force of the water pump 203, so that there is no residual water in the discharge channel of the water purifier, ensuring that when the user connects to hot water, the water purifier always discharges hot water, thereby saving water resources and improving the user experience.

[0050] It should be noted that the filter assembly 201 of the present application is a component formed based on PP cotton (polypropylene cotton, PPC) and reverse osmosis (Reverse Osmosis, RO) technology, that is, optionally, in some embodiments, refer to Figure 4 , Figure 4 It is a water circuit structure diagram of the third embodiment of the water purification and heating system provided in the embodiment of the present application. The filter assembly 201 provided in the embodiment of the present application includes a composite filter element 2011 and a reverse osmosis filter element 2012, wherein one side of the composite filter element is connected to the water inlet, and the other side of the composite filter element is connected to one end of the second water inlet valve, the water pump 203 is respectively connected to the other end of the second water inlet valve 202 and one side of the reverse osmosis filter element 2012, and the other side of the reverse osmosis filter element 2012 is connected to the wastewater outlet 60.

[0051] It is understandable that the composite filter element 2011 is used to perform the initial filtration on the tap water connected from the water inlet 10 to filter out the large particles of impurities in the tap water; then, when the second water inlet valve 202 is opened, the water pump 203 is used to press the initially filtered water source into the reverse osmosis filter element 2012 to filter out the dissolved solids, dissolved organic matter, heavy metal ions, microorganisms and other pollutants in the water, and the filtered wastewater is discharged through the wastewater outlet 50, thereby completing the purification of the water source. After the water source is purified, the purified pure water can be heated by the heating module 30 to complete the purification and heating of the tap water. Of course, in some embodiments, the purified pure water can also be directly discharged from the water outlet through the water purification pipeline to complete the water intake process of normal temperature water. The specific selection can be made according to the actual situation and is not limited here.

[0052] It should be noted that the working mode of the water purifier using the RO filter element is to pressurize the tap water with a water pump so that the water penetrates the RO membrane, and heavy metals and microorganisms are intercepted in front of the membrane. If the water purifier does not work for a long time (such as 12 hours or 24 hours), the water left in the RO filter element will always be in a semi-adjacent state with the tap water, which is equivalent to a mixture of a finished product and a semi-finished product. Therefore, when the water is made next time, the water quality of the first cup of water made will be much lower than the water made subsequently (hereinafter referred to as the first cup of water problem). It can be understood that the present application can not only discharge the water remaining at the end of the double-stage heating module 30 and / or the water at the end of the clean water pipeline through the action of the first one-way valve 401, the first solenoid valve 402 and the water pump 203, but also discharge the water from the wastewater port 60 through the back suction pipeline. At the same time, the water remaining at the end of the double-stage heating module 30 and / or the water at the end of the clean water pipeline can be used to rinse the RO filter element.

[0053] It should be noted that the RO filter element is not resistant to high temperatures. Therefore, in order to prevent the hot water of the dual-stage heating module 30 from damaging the RO filter element, in some embodiments of the present application, a buffer water tank is added to store the hot water. When the temperature of the water in the buffer water tank meets the preset conditions, the first solenoid valve 402 is opened. That is, optionally, in some embodiments, refer to Figure 5 A buffer water tank 403 is also provided on the pipeline; wherein the buffer water tank 403 is arranged between the water purification module 20 and the two-stage heating module 30, and the first solenoid valve 402 is connected to the buffer water tank 403 through a back suction pipeline.

[0054] For further information, please refer to Figure 5 A first water inlet valve 404 may also be provided on the water purification pipeline, one end of the first water inlet valve 404 is connected to the water purification module 20, and the other end of the first water inlet valve 404 is respectively connected to the other end of the first solenoid valve 402 and the buffer water tank 403.

[0055] In addition, in some embodiments, a flushing device for the RO filter element can be added to solve the first cup of water problem, that is, optionally, refer to Figure 6 , Figure 6 It is a water circuit structure diagram of the sixth embodiment of the water purification and heating system provided in the embodiments of the present application. The water purification module 20 of the present application may also specifically include a pressure tank 204 and a reflux valve group 205. Among them, the pressure tank 204 is connected to the reflux pipeline through a reflux branch, and the reflux valve group 205 is arranged on the reflux branch. The water purification and heating system also includes a water quality detector 80 and a high-pressure switch 90, and the water quality detector 80 and the high-pressure switch 90 are both arranged on the water purification pipeline. The high-pressure switch 90 is a pressure switch, and the principle of the high-pressure switch 90 is: when it is detected that it is higher or lower than the set pressure, an electrical signal will be fed back to the main control board, and then the main control board will turn on or off the water purifier.

[0056] Optionally, in some embodiments, the reflux valve assembly 205 may be a reflux valve and a solenoid valve, or a reflux valve, a one-way valve, and a solenoid valve.

[0057] Specifically, after the water purifier is turned off (i.e., when water is no longer flowing into the water inlet 10), the back-suction component 40 absorbs the water remaining in the water path. At the same time, the reflux valve group 205 is opened for conventional reflux flushing, and then flushed again with pure water from the pressure tank 204. After flushing, the pressure tank 204 is filled with pure water to start flushing next time.

[0058] It should be noted that the reflux flushing of the reflux valve group 205 is to pump pure water back to the front of the water pump 202, mix it with tap water, and then make pure water to flush the RO filter element 2012; and the water in the pressure tank 204 is pure water, which is used to finally flush and replace the water in the RO filter element 2012 and the pipeline, ensuring that there is pure water in front of the membrane of the RO filter element 2012, thereby preventing the production of first cup water.

[0059] It should also be noted that during the water production process, when the water quality detector 80 detects that the water quality of the water source passing through the RO filter element does not meet the set conditions, conventional backflow flushing can be performed, and then flushed again with pure water from the pressure tank 204. After flushing, the pressure tank 204 is filled with pure water to start flushing next time.

[0060] It should be noted that the reflux flushing of the reflux valve group 205 is to pump pure water back to the front of the water pump 202, mix it with tap water, and then make pure water to flush the RO filter element 2012; and the water in the pressure tank 204 is pure water, which is used to finally flush and replace the water in the RO filter element 2012 and the pipeline, ensuring that there is pure water in front of the membrane of the RO filter element 2012, thereby preventing the production of first cup water.

[0061] Optionally, in some embodiments, see Figure 5 Please continue reading Figure 5The heating module 30 of the present application may specifically include a diverter valve 301 and a two-stage heating component 302, wherein the water purification module 20 is connected to the water inlet end a of the diverter valve 301 through a water purification pipeline, the first water outlet end b of the diverter valve 301 is connected to one end of the two-stage heating component 302, the other end of the two-stage heating component 302 is connected to the water outlet pipeline, and the second water outlet end of the diverter valve c is connected to the water outlet pipeline.

[0062] Thus, when the user needs boiling water, the diverter valve 301 controls all the water in the water circuit to pass through the two-stage heating component 302, and then, through the water outlet pipeline to reach the water outlet 50, because the faucet connected to the water outlet 50 discharges the hot water; when the user needs normal temperature water, the diverter valve 301 controls all the water in the water circuit to pass directly from the normal temperature water pipeline, and then, through the water outlet pipeline to reach the water outlet 50, because the faucet connected to the water outlet 50 discharges the normal temperature water; when the user needs warm water, the diverter valve 301 controls the water source in the water circuit to pass through the two-stage heating component 302 and the normal temperature water pipeline respectively according to a certain proportion, and the two are mixed in the water outlet pipeline to form warm water with a certain temperature, thereby completing the mixing of hot water and normal temperature water. It should be noted that in some embodiments, the two-stage heating module 30 can also specifically include a flow detection component 303 and a temperature detection component 304, the flow detection component 303 is arranged on the water purification pipeline, and the temperature detection component 304 is arranged on the water outlet pipeline.

[0063] It is understandable that the flow detection component 303 is used to detect the amount of water flowing into the clean water pipeline. Within a preset time, when the flow detection component 303 detects that the amount of water flowing into the clean water pipeline is greater than a preset value, the first water inlet valve 404 connected thereto can be controlled to close, or the amount of water flowing through the first water inlet valve 4045 can be controlled to avoid using a large amount of water in a short period of time, resulting in insufficient time for the two-stage heating component 302 to heat the pure water. In addition, the temperature detection component 304 is used to detect the temperature of the water flowing from the water outlet pipeline to ensure that the warm water obtained by the subsequent user matches the temperature expected by the user.

[0064] Optionally, in some embodiments, the reflux valve group 205 includes a reflux valve 205a, a second one-way valve 205b and a second solenoid valve 205c, wherein the reflux valve 205a and the second one-way valve 205b are arranged in the reflux pipeline, one end of the second one-way valve 205b is connected to the back-suction pipeline, and the other end of the second one-way valve 205b is connected to the reflux valve 205a, and the pressure tank 204 is connected to the reflux pipeline through the second solenoid valve 205c.

[0065] When the water purifier is turned off, the first water inlet valve 404, the second water inlet valve 202 and the reflux valve 205a are closed, and the first solenoid valve 402, the water pump 203 and the wastewater valve (not shown in the figure) arranged at the wastewater outlet 60 are opened, and the suction force of the water pump 203 is used to suck back the water in the pipeline and discharge it through the wastewater pipe.

[0066] Optionally, in some embodiments, see Figure 7 , Figure 7 This is a water circuit structure diagram of the seventh embodiment of the water purification and heating system provided in the embodiments of the present application. Figure 6 Provided water heating system and Figure 5 The difference of the provided water purification heating system is that the water purification heating system also includes a pressure relief valve 70, and the water outlet 50 and the pressure relief valve 70 are connected to the same side of the two-stage heating module. The pressure relief valve 70 is used to release the air pressure of the two-stage heating module 30 to avoid excessive air pressure inside the two-stage heating module 30, which may cause the hot water inside the two-stage heating module 30 to overflow from the water outlet 50 when the water purifier is turned off.

[0067] It is understood that in this application, Figure 1 The two-stage heating module 30 of the water purification heating system shown is directly connected to the faucet of the water outlet, so that the two-stage heating module 30 is equal to the external air pressure. It can also avoid the problem of hot water inside the two-stage heating module 30 overflowing from the water outlet 50 when the water purifier is turned off.

[0068] Optionally, in some embodiments, see Figure 8 , Figure 8 This is a water circuit structure diagram of the eighth implementation mode of the water purification and heating system provided in the examples of the present application. Figure 8 Water heating system and Figure 6 The difference between the water purification heating system and the water purification heating system is that a back-suction tank 80 is added on the top of the double-stage heating module 30, and a water level probe is connected in series in the pipeline at the bottom of the back-suction tank 80. When the main pump back-suctions after shutdown, if too much water is back-suctioned, the water level at the top of the heating tank will be low, and the second-stage heating pipe will be exposed to the air, which will cause the second-stage heating pipe to dry burn or jet.

[0069] Therefore, a back-suction tank is added at the water outlet end of the top of the hot tank, and the volume of the back-suction tank 80 is set to 1.2-1.5 times the amount of water to be back-sucked, and a water level probe is added at the bottom of the back-suction tank 80. When the probe detects a low water level, the back-suction is stopped, thus ensuring that the top of the dual-stage heating module 30 is always full of water, avoiding dry burning or jetting problems in the second-stage heating tube.

[0070] The above is the water purification heating system provided in this application.

[0071] As can be seen from the above, when the water purifier is making water, the present application utilizes the two-stage heating module 20 to perform two-stage heating on the pure water in the water circuit, thereby ensuring a large flow of water supply while reducing the time for the water purifier to produce hot water, thereby improving the efficiency of hot water supply; in addition, when the water purifier is turned off, the pure water retained at the end of the water circuit is sucked back through the back-suction valve group 40, so that there is no residual water in the discharge channel of the water purifier, and then when the user connects to hot water, the water purifier always discharges hot water, thereby saving water resources and improving the user experience.

[0072] The present application also provides a water purifier (not shown), which includes a water purification heating system. The specific structure of the water purification heating system refers to the above-mentioned embodiment. Since the water purifier proposed in the present application adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0073] The above disclosure is only the preferred embodiment of the present application, which certainly cannot be used to limit the scope of rights of the present application. Therefore, equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A water purification heating system, characterized in that: include: Water inlet; A water purification module, the water purification module is connected to the water inlet through a water inlet pipeline; A two-stage heating module, wherein a first end of the two-stage heating module is connected to the water purification module via a water purification pipeline; A back-suction valve group, wherein the back-suction valve group is arranged on the back-suction pipeline, one end of the back-suction valve group is connected to the water purification module through the back-suction pipeline, and the other end of the back-suction valve group is connected to the dual-stage heating module through the back-suction pipeline; A water outlet, the second end of the dual-stage heating module is connected to the water outlet, and the water purification module is connected to the water outlet through the water purification pipeline; A wastewater outlet is connected to the water purification module through a wastewater pipeline.

2. The water purification heating system according to claim 1, characterized in that: The back-suction valve group includes a first one-way valve and a first solenoid valve; Among them, one end of the first solenoid valve is connected to one end of the first one-way valve, the other end of the first solenoid valve is connected to the two-stage heating module through the back-suction pipeline, and the other end of the first one-way valve is connected to the water purification module.

3. The water purification heating system according to claim 2, characterized in that: The clean water pipeline is also provided with a buffer water tank; Wherein, the buffer water tank is arranged between the water purification module and the two-stage heating module, and the first solenoid valve is connected to the buffer water tank through the back-suction pipeline.

4. The water purification heating system according to claim 3, characterized in that: A first water inlet valve is provided on the water purification pipeline, one end of the first water inlet valve is connected to the water purification module, and the other end of the first water inlet valve is respectively connected to the other end of the first solenoid valve and the buffer water tank.

5. The clean water heating system according to claim 1, characterized in that: The water purification module includes a filter assembly, a second water inlet valve and a water pump; One side of the filter assembly is connected to the water inlet and the wastewater outlet, the other side of the filter assembly is connected to one end of the second water inlet valve, and the water pump is respectively connected to the other end of the second water inlet valve and the filter assembly.

6. The clean water heating system according to claim 5, characterized in that: The filter assembly includes a composite filter element and a reverse osmosis filter element; Among them, one side of the composite filter element is connected to the water inlet, the other side of the composite filter element is connected to one end of the second water inlet valve, the water pump is respectively connected to the other end of the second water inlet valve and one side of the reverse osmosis filter element, and the other side of the reverse osmosis filter element is connected to the wastewater outlet.

7. The clean water heating system according to claim 5, characterized in that: The water purification module also includes a pressure tank, a reflux valve group, a water quality detector and a high-pressure switch; Wherein, the pressure tank is connected to the reflux pipeline through a reflux branch, the reflux valve group is arranged on the reflux branch, and the water quality detector and the high-pressure switch are both arranged on the water purification pipeline.

8. The clean water heating system according to claim 1, characterized in that: The dual-stage heating module includes a diverter valve and a dual-stage heating assembly; Among them, the water purification module is connected to the water inlet end of the diverter valve through the water purification pipeline, the first water outlet end of the diverter valve is connected to one end of the two-stage heating component, the other end of the two-stage heating component is connected to the water outlet pipeline, the second water outlet end of the diverter valve is connected to the water outlet pipeline, and the expansion water tank is connected to the other end of the two-stage heating component through the back-suction pipeline and the water purification pipeline.

9. The clean water heating system according to claim 8, characterized in that: The dual-stage heating module also includes a flow detection component and a temperature detection component; Wherein, the flow detection component is arranged on the water purification pipeline, and the temperature detection component is arranged on the water outlet pipeline.

10. A water purifier, characterized in that: The invention comprises the clean water heating system according to any one of claims 1 to 9.

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