Waterway structure and water purifier

Abstract

The utility model provides a waterway structure and a water purifier. The waterway structure comprises a filtering module, a heating waterway and a normal-temperature waterway, a water replenishing waterway and a flushing waterway are arranged between the filtering module and the heating waterway; the normal-temperature waterway is connected with the water replenishing waterway; the filtering module is used for supplying purified water to the normal-temperature water path and the heating water path through the water replenishing water path; the flushing water path comprises a first flushing branch and a second flushing branch; the water inlet end of the first flushing branch is connected with the heating water path, the water outlet end of the first flushing branch is connected with the filtering module, and the first flushing branch is used for flushing the filtering module with hot water in the heating water path; the water inlet end of the second flushing branch is connected with the heating water way, and the water outlet end of the second flushing branch is connected with the normal-temperature water way and used for flushing the normal-temperature water way through hot water in the heating water way. The normal-temperature water path and / or the filtering module are / is subjected to high-temperature flushing sterilization through the flushing water path connected with the heating water path, microorganisms such as bacteria and molds are effectively killed, and sanitation and safety of discharged water are guaranteed.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of waterway structure, and in particular to a waterway structure and a water purifier. BACKGROUND

[0002] In the existing water purifier industry, due to the defects of the waterway structure or improper maintenance of the filter device, the water purifier often has the problem of excessive bacterial colonies. With the continuous improvement of people's pursuit of a healthy lifestyle, people's awareness of healthy drinking water is also gradually increasing.

[0003] Specifically, on the one hand, the waterway structure design of some water purifiers has defects, the internal pipeline is complex and has gaps, and it is easy to leave water and impurities, which provides a breeding ground for bacteria.

[0004] On the other hand, improper maintenance of the filter device is also an important reason for excessive bacterial colonies. For example, the filter core, as the core component of the water purifier, needs to be replaced regularly, but many users lack relevant knowledge and fail to replace the filter core in time, resulting in filter core pollution and large-scale reproduction of bacteria on the filter core.

[0005] In addition, some water purifiers have poor sealing, and bacteria in the external air can also enter the internal part of the water purifier, further exacerbating the problem of excessive bacterial colonies. Under the background of people's increasing awareness of healthy drinking water, the problem of excessive bacterial colonies in the water purifier is increasingly concerned. SUMMARY

[0006] The technical problem to be solved by the present disclosure is to overcome the defect that the waterway structure in the prior art is not reasonable, resulting in excessive bacteria, and to provide a waterway structure and a water purifier.

[0007] The present disclosure solves the above technical problems by the following technical solutions:

[0008] In a first aspect, a waterway structure is provided, comprising a filter module, a heating waterway, and a normal-temperature waterway;

[0009] A water supplementing waterway and a flushing waterway are arranged between the filter module and the heating waterway, and the normal-temperature waterway is connected with the water supplementing waterway;

[0010] The filter module is configured to supply clean water to the normal-temperature waterway and the heating waterway through the water supplementing waterway;

[0011] The flushing waterway comprises a first flushing branch and a second flushing branch;

[0012] The water inlet end of the first flushing branch is connected with the heating waterway, and the water outlet end of the first flushing branch is connected with the filter module, and the first flushing branch is configured to flush the filter module with hot water in the heating waterway;

[0013] The water inlet end of the second flushing branch is connected with the heating water path, and the water outlet end of the second flushing branch is connected with the normal-temperature water path, so as to flush the normal-temperature water path with hot water in the heating water path.

[0014] Optionally, the filter module comprises an activated carbon filter element, and the water outlet end of the first flushing branch is connected with the activated carbon filter element, so as to flush the activated carbon filter element with hot water in the heating water path.

[0015] Optionally, the filter module further comprises a nanofiltration filter element, and a one-way valve is arranged between the nanofiltration filter element and the activated carbon filter element.

[0016] The one-way valve is used to prevent hot water in the activated carbon filter element from flowing to the nanofiltration filter element.

[0017] Optionally, the activated carbon filter element is provided with a first waste water branch, the nanofiltration filter element is provided with a second waste water branch, and the normal-temperature water path is provided with a third waste water branch.

[0018] The first waste water branch, the second waste water branch and the third waste water branch are integrated into a first waste water outlet for discharge.

[0019] Optionally, the filter module further comprises a composite filter element and a diaphragm pump.

[0020] The composite filter element, the diaphragm pump, the nanofiltration filter element and the activated carbon filter element are connected in sequence.

[0021] Optionally, a sterilizer is arranged on the normal-temperature water path.

[0022] The sterilizer is used to sterilize the purified water in the normal-temperature water path.

[0023] Optionally, the heating water path comprises a hot water tank, and the hot water tank is provided with a hot water outlet, a fourth waste water branch and an exhaust branch.

[0024] Optionally, at least two water level sensors are arranged on the hot water tank.

[0025] Optionally, the exhaust branch and the fourth waste water branch are integrated into a second waste water outlet for discharge.

[0026] A water receiving box is arranged at the second waste water outlet.

[0027] The water receiving box is of an open structure.

[0028] In a second aspect, a water purifier is provided, comprising the water path structure of the first aspect.

[0029] On the basis of common sense in the art, the above optional conditions can be combined arbitrarily, thereby obtaining optional examples of the present disclosure.

[0030] The positive progress effect of the present disclosure is that by heating the flushing waterway branched from the waterway, the normal temperature waterway and / or the filter module are high-temperature flushed and sterilized by the residual water in the heating water tank when the waterway is idle for a long time or restarted, so as to realize the flushing and sterilization operation of the filter module and / or the normal temperature waterway. The bacteria, mold and other microorganisms that may breed in the filter element and the waterway are effectively killed, the pollution risk of microorganisms to water quality is reduced, the health and safety of the outlet water are ensured, the depth cleaning of the filter element is realized, the good permeability and adsorption capacity of the filter element are maintained, so as to prolong the service life of the filter element and reduce the frequency and cost of replacing the filter element. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 The structural schematic diagram of the waterway structure provided for an exemplary embodiment of the present disclosure is shown in the figure;

[0032] Reference numerals

[0033] The filter module 100, the heating waterway 200, the normal temperature waterway 300, the flushing waterway 400, and the water replenishing waterway 500;

[0034] The composite filter element 110, the diaphragm pump 120, the nanofiltration filter element 130, the activated carbon filter element 140, the first waste water branch 150, the second waste water branch 160, and the third waste water branch 170;

[0035] The heating water tank 210, the water level sensor 220, the exhaust branch 230, the hot water outlet 240, the fourth waste water branch 250, and the water receiving box 260;

[0036] The first flushing waterway 410, the second flushing waterway 420, and the backflow pump 430. DETAILED DESCRIPTION

[0037] The present disclosure will be further described below by way of examples, but the present disclosure is not limited in the scope of the examples.

[0038] The prefix words such as "first", "second" are used in the embodiments of the present disclosure only to distinguish different description objects, and have no limiting effect on the position, order, priority, quantity or content of the described objects. The use of ordinal words such as ordinal words in the embodiments of the present disclosure does not constitute a limitation on the described objects, and the description of the described objects should be referred to the description of the context in the claims or embodiments, and should not constitute an additional limitation because of the use of such prefix words. In addition, in the description of the embodiments, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0039] Embodiment 1

[0040] A waterway structure is provided, asFigure 1 As shown, it comprises a filter module 100, a heated water circuit 200 and a normal temperature water circuit 300;

[0041] A water replenishing circuit 500 and a flushing water circuit 400 are arranged between the filter module 100 and the heated water circuit 200, and the normal temperature water circuit 300 is connected with the water replenishing circuit 500;

[0042] The filter module 100 is configured to supply clean water to the normal temperature water circuit 300 and the heated water circuit 200 through the water replenishing circuit 500;

[0043] The flushing water circuit 400 comprises a first flushing branch 410 and a second flushing branch 420;

[0044] The water inlet end of the first flushing branch 410 is connected with the heated water circuit 200, and the water outlet end of the first flushing branch 410 is connected with the filter module 100, so as to flush the filter module 100 with hot water in the heated water circuit 200;

[0045] The water inlet end of the second flushing branch 420 is connected with the heated water circuit 200, and the water outlet end of the second flushing branch 420 is connected with the normal temperature water circuit 300, so as to flush the normal temperature water circuit 300 with hot water in the heated water circuit 200.

[0046] In the present scheme, the flushing water circuit 400 is contacted by the heated water circuit 200, and the high-temperature water or warm water in the heated water tank 210 is used to perform high-temperature flushing sterilization on the normal temperature water circuit 300 and / or warm water flushing on the filter module 100 when the water circuit is left for a long time or restarted.

[0047] In one embodiment, a backflow pump 430 is arranged on the flushing water circuit 400, and the backflow pump 430 is configured to pump hot water in the heated water circuit 200 to the flushing target water circuit. A first backflow valve is arranged at the water outlet end of the backflow pump 430 to control the water outlet of the backflow water circuit. The flushing water circuit 400 is divided into the first flushing branch 410 and the second flushing branch 420 after the first backflow valve. A second backflow valve is arranged on the first flushing branch 410. A water outlet control valve is arranged at the water outlet of the normal temperature water circuit 300. When the first backflow valve is opened, the flushing sterilization operation on the filter module 100 and / or the normal temperature water circuit 300 is realized by opening the second backflow valve and / or the water outlet control valve.

[0048] In one embodiment, the heating water path 200 can heat the residual water according to a preset flushing temperature or flush the filter device with warm water after the residual water drops to the flushing temperature, such as more than 60℃, which may accelerate the aging of the membrane material; according to the material of the filter module 100 and the main corresponding dirt or pollutants, the heating water path 200 heats the waste water to the corresponding flushing temperature, such as 40-50℃ for organic pollutants, and 50-60℃ for inorganic salt dirt (such as calcium carbonate) to enhance the solubility.

[0049] As an implementable way, the filter module 100 includes an activated carbon filter core 140, and the outlet of the first flushing branch 410 is connected with the activated carbon filter core 140, so that the hot water in the heating water path 200 flushes the activated carbon filter core 140.

[0050] In this scheme, the activated carbon filter core 140 can withstand high-temperature flushing of hot water, and high-temperature hot water and steam can soften and dissolve impurities such as organic matter and colloids accumulated on the surface and internal pores of the filter core, making it easier to be flushed away, thereby restoring the adsorption performance of the filter core; at the same time, in the flushing process in the high-temperature environment, hot water and steam can penetrate into each part of the filter core, effectively killing bacteria, mold and other microorganisms that may breed in the filter core, reducing the risk of water pollution by microorganisms, ensuring the health and safety of the outlet water, achieving deep cleaning of the activated carbon filter core 140 by high-temperature hot water, maintaining the good permeability and adsorption capacity of the filter core, thereby prolonging the service life of the filter core and reducing the frequency and cost of replacing the filter core.

[0051] As an implementable way, the filter module 100 further includes a nanofiltration filter core 130, and a one-way valve is arranged between the nanofiltration filter core 130 and the activated carbon filter core 140.

[0052] The one-way valve is used to prevent hot water in the activated carbon filter core 140 from flowing to the nanofiltration filter core 130.

[0053] In this scheme, the nanofiltration filter core 130 can effectively remove harmful substances such as heavy metals, pesticide residues, bacteria, viruses and the like in water, while the activated carbon filter core 140 can adsorb odors, colors, organic matter and the like in water, further improving water quality and taste. The arrangement of the one-way valve ensures the order of water flow through the nanofiltration filter core 130 and the activated carbon filter core 140, so that the two filter cores can fully exert their respective filtering advantages, improve the overall filtering efficiency and water quality, and at the same time, when the activated carbon filter core 140 is flushed at high temperature, prevent the high-temperature water from flowing back to the nanofiltration filter core 130, and protect the normal work of the nanofiltration filter core 130.

[0054] As an implementable manner, the activated carbon filter element 140 is provided with a first wastewater branch 150, the nanofiltration filter element 130 is provided with a second wastewater branch 160, and the normal-temperature water path 300 is provided with a third wastewater branch 170.

[0055] The first wastewater branch 150, the second wastewater branch 160 and the third wastewater branch 170 are integrated into a first wastewater outlet for discharge.

[0056] In the present scheme, the first wastewater branch 150 is used to discharge wastewater in the activated carbon filter element 140 when the activated carbon filter element 140 is not working, and to discharge flushing wastewater when the activated carbon filter element 140 is flushed, a first wastewater valve is arranged on the first wastewater branch 150, and the first wastewater branch 150 is controlled to be turned on or turned off by opening or closing the first wastewater valve, and a first wastewater check valve is further arranged on the first wastewater branch 150.

[0057] Similarly, the second wastewater branch 160 is used to discharge wastewater in the activated carbon filter element 140 when the nanofiltration filter element 130 is not working, and to discharge flushing wastewater when the nanofiltration filter element 130 is flushed, a second wastewater valve is arranged on the second wastewater branch 160, and the second wastewater branch 160 is controlled to be turned on or turned off by opening or closing the second wastewater valve, and a second wastewater check valve is further arranged on the first wastewater branch 150.

[0058] In addition, the third wastewater branch 170 is used to discharge wastewater in the normal-temperature water path 300 when the normal-temperature water path 300 is not working, and to discharge flushing wastewater when the normal-temperature water path 300 is flushed for high-temperature sterilization, a third wastewater valve is arranged on the third wastewater branch 170, and the flushing wastewater of the normal-temperature water path 300 is introduced into the third wastewater branch 170 for discharge by opening the first wastewater valve and closing the water outlet control valve of the normal-temperature water path 300, and a third wastewater check valve is further arranged on the third wastewater branch 170.

[0059] By integrating the first wastewater branch 150, the second wastewater branch 160 and the third wastewater branch 170 into the same wastewater outlet for discharge, it is not necessary to separately arrange pipes and joints for each discharge source, thereby reducing the number of pipes and joints used. The integrated discharge pipeline design is more compact, which can effectively save the internal space of the equipment, and make the whole system more simple and beautiful. When maintenance or repair is needed, it is easier to check and handle.

[0060] As an implementable manner, the filter module 100 further comprises a composite filter element 110 and a diaphragm pump 120.

[0061] The composite filter element 110, the diaphragm pump 120, the nanofiltration filter element 130 and the activated carbon filter element 140 are connected in sequence.

[0062] In the present scheme, the composite filter element 110 can adopt a CPP composite filter element 110 (polypropylene (PP) and activated carbon (C) composite filter element), which can effectively remove suspended solids, silt, rust and other large particle impurities in water, as well as part of organic matter and odor. The nanofiltration filter element 130 can further remove harmful substances such as heavy metals, pesticide residues, bacteria and viruses in water, and has high removal performance for divalent and multivalent ions and organic matter with a molecular weight of 200-1000. The activated carbon filter element 140 can adsorb residual chlorine, odor, color and organic matter in water. The three are connected in turn, realizing multiple filtration and more comprehensively removing various impurities in water to ensure that the water quality is more pure.

[0063] As a realizable way, the normal-temperature water path 300 is provided with a sterilizer;

[0064] The sterilizer is used for sterilizing the purified water in the normal-temperature water path 300.

[0065] In the present scheme, the sterilizer can be an LED sterilizer, especially a deep ultraviolet LED (UVC), which can emit ultraviolet rays of a specific wavelength (such as 265-280 nm) to rapidly destroy the DNA or RNA molecular structure of microorganisms such as bacteria and viruses, so that they lose the ability to reproduce, thereby achieving the effect of efficient sterilization, with a sterilization rate of 99.99%. At the same time, the LED sterilizer is small in size and can be conveniently integrated with the water outlet path of the water purifier, without occupying too much space and affecting the overall design and appearance of the water purifier.

[0066] As a realizable way, the heating water path 200 includes a hot water tank, which is provided with a hot water outlet, a fourth waste water branch 250 and an exhaust branch 230.

[0067] In the present scheme, the hot water tank 210 is supplemented with purified water through the water supplement path 500, and the purified water is heated based on user demand to supply hot water through the hot water outlet, discharge waste water of the hot water tank 210 through the fourth waste water branch 250, and balance the air pressure in the hot water tank 210 through the exhaust branch 230 as an overflow pipeline.

[0068] As a realizable way, at least two water level sensors 220 are arranged on the hot water tank.

[0069] In the present scheme, the water level sensor 220 adopts a probe sensor, which can provide high-precision water level measurement, usually to the accuracy of millimeters. Different lengths of probe sensors are arranged on the top surface of the hot water tank 210 to collect the water level of the hot water tank 210 at high, medium and low depths in real time, so as to supplement or discharge water in time for the hot water tank 210.

[0070] As an implementable manner, the exhaust branch 230 and the fourth waste water branch 250 are integrated to the second waste water outlet for discharge;

[0071] Wherein, a water receiving box 260 is arranged at the second waste water outlet;

[0072] The water receiving box 260 is an open structure.

[0073] In the scheme, through the water receiving box 260 at the second waste water outlet, the hot water discharged from the drain outlet can be effectively collected, and the hot water is prevented from splashing on the surrounding ground, wall or other objects, so as to avoid causing burns, damage or pollution. The water receiving box 260 can be made of stainless steel, which has low manufacturing cost, simple structure and is convenient for maintenance and cleaning.

[0074] The waterway structure provided by the embodiment realizes the flushing and sterilization operation on the filter module and / or the normal temperature waterway by using the residual water in the heating water tank to perform high-temperature flushing and sterilization on the normal temperature waterway and / or the filter module when the waterway is idle for a long time or is restarted. The bacteria, mold and other microorganisms that may breed in the filter element and the waterway are effectively killed, the pollution risk of the microorganisms to the water quality is reduced, the health and safety of the outlet water are ensured, the filter element is deeply cleaned, the good permeability and adsorption capacity of the filter element are maintained, and thus the service life of the filter element is prolonged, and the frequency and cost of replacing the filter element are reduced.

[0075] Embodiment 2

[0076] In the embodiment, a water purifier is provided, which includes the waterway structure in the embodiment 1.

[0077] The water purifier provided by the embodiment realizes the flushing and sterilization operation on the filter module and / or the normal temperature waterway by using the residual water in the heating water tank to perform high-temperature flushing and sterilization on the normal temperature waterway and / or the filter module when the waterway is idle for a long time or is restarted. The bacteria, mold and other microorganisms that may breed in the filter element and the waterway are effectively killed, the pollution risk of the microorganisms to the water quality is reduced, the health and safety of the outlet water are ensured, the filter element is deeply cleaned, the good permeability and adsorption capacity of the filter element are maintained, and thus the service life of the filter element is prolonged, and the frequency and cost of replacing the filter element are reduced.

[0078] Although the specific embodiments of the present disclosure are described above, those skilled in the art should understand that this is only an illustration, and the protection scope of the present disclosure is defined by the appended claims. Those skilled in the art can make various changes or modifications to the embodiments without departing from the principles and essence of the present disclosure, and these changes and modifications all fall within the protection scope of the present disclosure.

Claims

1. A waterway structure, characterized by comprising: The waterway structure comprises a filter module, a heating waterway and a normal-temperature waterway. A water supplement waterway and a flushing waterway are arranged between the filter module and the heating waterway, and the normal-temperature waterway is connected with the water supplement waterway. The filter module is configured to supply clean water to the normal-temperature waterway and the heating waterway through the water supplement waterway. The flushing waterway comprises a first flushing branch and a second flushing branch. The water inlet end of the first flushing branch is connected with the heating waterway, and the water outlet end of the first flushing branch is connected with the filter module, so as to flush the filter module with hot water in the heating waterway. The water inlet end of the second flushing branch is connected with the heating waterway, and the water outlet end of the second flushing branch is connected with the normal-temperature waterway, so as to flush the normal-temperature waterway with hot water in the heating waterway.

2. The waterway structure according to claim 1, characterized by The filter module comprises an activated carbon filter element, and the water outlet end of the first flushing branch is connected with the activated carbon filter element, so as to flush the activated carbon filter element with hot water in the heating waterway.

3. The waterway structure according to claim 2, characterized by The filter module further comprises a nanofiltration filter element, and a one-way valve is arranged between the nanofiltration filter element and the activated carbon filter element. The one-way valve is configured to prevent hot water in the activated carbon filter element from flowing to the nanofiltration filter element.

4. The waterway structure according to claim 3, characterized by The activated carbon filter element is provided with a first waste water branch, the nanofiltration filter element is provided with a second waste water branch, and the normal-temperature waterway is provided with a third waste water branch. The first waste water branch, the second waste water branch and the third waste water branch are integrated into a first waste water outlet for discharge.

5. The waterway structure according to claim 3, wherein The filter module further comprises a composite filter element and a diaphragm pump. The composite filter element, the diaphragm pump, the nanofiltration filter element and the activated carbon filter element are connected in sequence.

6. The waterway structure according to claim 1, wherein A sterilizer is arranged on the normal-temperature waterway. The sterilizer is configured to sterilize clean water in the normal-temperature waterway.

7. The waterway structure according to any one of claims 1 to 6, characterized by The heating waterway comprises a hot water tank, and the hot water tank is provided with a hot water outlet, a fourth waste water branch and an exhaust branch.

8. The waterway structure according to claim 7, wherein At least two water level sensors are arranged on the hot water tank.

9. The waterway structure according to claim 7, wherein The exhaust branch and the fourth waste water branch are integrated into a second waste water outlet for discharge. A water receiving box is arranged at the second waste water outlet. The water receiving box is of an open structure.

10. A water purifier characterized by comprising: The waterway structure comprises the waterway structure according to any one of claims 1 to 9.

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