Water purifier

Abstract

The utility model relates to the technical field of water purifiers, and discloses a water purifier which comprises a purified water filtering module, a purified water filtering module, a temperature detection device, a first hot water switch valve, a second hot water switch valve, a raw water pipeline, a hot water pipeline, a purified water outlet end and a waste water outlet end. The hot water pipeline is connected with the raw water pipeline, the hot water pipeline is provided with a second hot water switch valve, the raw water pipeline is provided with a temperature detection device, and the temperature detection device is used for detecting the temperature of water flowing to the water inlet end of the water purification filtering module. The water outlet end of the pure water filtering module is connected with the water inlet end of the pure water filtering module, the water outlet end of the pure water filtering module is connected with the pure water outlet end, and the wastewater end of the pure water filtering module is connected with the wastewater outlet end, so that the service life of a filter element in the water purifier can be prolonged through the structure and the connection.

Description

Technical Field

[0001] The utility model relates to the technical field of water purifiers, and particularly relates to a water purifier. Background Art

[0002] With the improvement of living standards, people pay more and more attention to drinking water health. As a health product, the water purifier has received more and more attention and is widely used in people's daily lives.

[0003] However, affected by seasons, the temperature of the tap water in the tap water pipeline is too high or too low. When a water purifier (such as a faucet water purifier) is used to filter the tap water, the tap water with too high temperature or too low temperature flows through the filter element of the water purifier, affecting the filter material and shortening the service life of the filter element. Summary of the Utility Model

[0004] Based on this, the present application proposes a water purifier, which can prevent the tap water with too high temperature or too low temperature from flowing through the filter element of the water purifier, and is beneficial to improving the service life of the filter element in the water purifier.

[0005] The present application provides a water purifier, which includes:

[0006] A water purification filtration module, a pure water filtration module, a temperature detection device, a first hot water switch valve, a second hot water switch valve, a raw water pipeline, a hot water pipeline, a pure water outlet end and a waste water outlet end. The raw water pipeline is connected to the first end of the first hot water switch valve, the second end of the first hot water switch valve is connected to the water inlet end of the water purification filtration module, the hot water pipeline is connected to the raw water pipeline, the second hot water switch valve is arranged on the hot water pipeline, the temperature detection device is arranged on the raw water pipeline, and the temperature detection device is used to detect the water temperature flowing to the water inlet end of the water purification filtration module. The water outlet end of the water purification filtration module is connected to the water inlet end of the pure water filtration module, the water outlet end of the pure water filtration module is connected to the pure water outlet end, and the waste water end of the pure water filtration module is connected to the waste water outlet end.

[0007] Optionally, the water purifier further includes:

[0008] A first reversing valve and a second reversing valve. The first end of the first reversing valve is connected to the waste water end of the pure water filtration module, the second end of the first reversing valve is connected to the waste water outlet end, the third end of the first reversing valve is connected to the first end of the second reversing valve, the second end of the second reversing valve is connected to the water outlet end of the water purification filtration module, and the third end of the second reversing valve is connected to the water inlet end of the pure water filtration module.

[0009] Optionally, the water purifier further includes:

[0010] A booster pump is provided on a pipeline between the water outlet of the water purification filter module and the water inlet of the pure water filter module.

[0011] Optionally, the water purifier also includes a pure water switch valve, a pure water reflux check valve and a pure water reflux pipeline, the first end of the pure water reflux pipeline is connected to the pipeline between the water outlet end of the pure water filter module and the pure water outlet end, the second end of the pure water reflux pipeline is connected to the pipeline between the first end of the boosting pump and the third end of the second reversing valve, and the pure water reflux check valve and the pure water switch valve are sequentially arranged on the pure water reflux pipeline.

[0012] Optionally, the water purifier further includes: a gas switching valve and a gas transmission pipeline, the gas switching valve is arranged on the gas transmission pipeline, and the gas transmission pipeline is connected to the pipeline between the first end of the booster pump and the water outlet end of the water purification filter module.

[0013] Optionally, an air filter is provided in the gas transmission pipeline.

[0014] Optionally, the water purifier also includes: a purified water outlet and a third reversing valve, the first end of the third reversing valve is connected to the third end of the first reversing valve, the second end of the third reversing valve is connected to the purified water outlet, and the third end of the third reversing valve is connected to the first end of the second reversing valve.

[0015] Optionally, the water purifier further includes a water quality detection sensor, which is arranged in a pipeline between the water outlet of the water purification filter module and the water inlet of the pure water filter module.

[0016] Optionally, the water purification filter module includes a polypropylene filter element and an activated carbon filter element, wherein the water inlet end of the polypropylene filter element is connected to the second end of the first hot water on / off valve, the water outlet end of the polypropylene filter element is connected to the water inlet end of the activated carbon filter element, and the water outlet end of the activated carbon filter element is connected to the water inlet end of the pure water filtration module. Optionally, the pure water filtration module includes a reverse osmosis filter element.

[0017] The present application provides a water purifier, which includes a water purification filtration module, a pure water filtration module, a temperature detection device, a first hot water switch valve, a second hot water switch valve, a raw water pipeline, a hot water pipeline, a pure water outlet end and a wastewater outlet end. The raw water pipeline is connected to the first end of the first hot water switch valve, the second end of the first hot water switch valve is connected to the water inlet end of the water purification filtration module, the hot water pipeline is connected to the raw water pipeline, the second hot water switch valve is arranged on the hot water pipeline, the temperature detection device is arranged on the raw water pipeline, and the temperature detection device is used to detect the water temperature flowing to the water inlet end of the water purification filtration module. The water outlet end of the water purification filtration module is connected to the water inlet end of the pure water filtration module, the water outlet end of the pure water filtration module is connected to the pure water outlet end, and the wastewater end of the pure water filtration module is connected to the wastewater outlet end. In the water purifier solution provided by the present application, when it is detected that the temperature of the raw water in the raw water pipeline is too low, the second hot water switch valve can be opened to mix the hot water in the hot water pipeline and the raw water in the raw water pipeline and then flow to the first hot water switch valve. When the temperature detection device detects that the temperature of the mixed water reaches the preset temperature threshold, the first hot water switch valve is opened, and after passing through the water purification filtration module and the pure water filtration module in sequence for filtration, pure water is supplied to the pure water outlet end. When the temperature detection device detects that the temperature of the raw water in the raw water pipeline is too high, an alarm can be issued through the temperature detection device, the second hot water switch valve is kept closed, and at the same time, the first hot water switch valve, the water purification filtration module and the pure water filtration module are closed, so that the water purifier cannot make water normally to protect the filter element. When the temperature detection device detects that the temperature of the raw water in the raw water pipeline is normal, the second hot water switch valve can be kept closed, and at the same time, the first hot water switch valve is opened, so that the raw water in the raw water pipeline passes through the water purification filtration module and the pure water filtration module in sequence for filtration and then pure water is supplied to the pure water outlet end. It can be seen that in the solution of the present application, by arranging the hot water pipeline, the first hot water switch valve, the temperature detection device and the second hot water switch valve, tap water with too high temperature or too low temperature can be prevented from flowing through the filter element of the water purifier, which is beneficial to improving the service life of the filter element in the water purifier. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is the first structural schematic diagram of the water purifier provided by the embodiment of the present application;

[0020] Figure 2 It is the second structural schematic diagram of the water purifier provided by the embodiment of the present application;

[0021] Figure 3 This is the third structural schematic diagram of the water purifier provided by the embodiment of the present application;

[0022] Figure 4 This is the fourth structural schematic diagram of the water purifier provided by the embodiment of the present application;

[0023] Figure 5 This is the fifth structural schematic diagram of the water purifier provided by the embodiment of the present application;

[0024] Figure 6 This is the sixth structural schematic diagram of the water purifier provided by the embodiment of the present application;

[0025] Figure 7 This is the seventh structural schematic diagram of the water purifier provided by the embodiment of the present application.

[0026] Description of main component symbols:

[0027] a - pure water outlet end; b - wastewater outlet end; c - purified water outlet end; 01 - raw water pipeline; 02 - hot water pipeline; 03 - pure water return pipeline; 04 - gas transmission pipeline; 10 - purified water filtration module; 20 - pure water filtration module; 30 - temperature detection device; 40 - first hot water switch valve; 50 - second hot water switch valve; 60 - first reversing valve; 70 - second reversing valve; 80 - booster pump; 90 - pure water switch valve; 100 - pure water return check valve; 101 - polypropylene filter element; 102 - activated carbon filter element; 110 - gas switch valve; 120 - third reversing valve; 130 - water quality detection sensor. Detailed implementation manners

[0028] Now, the exemplary embodiments will be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be implemented in various forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be more complete and comprehensive, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repeated description will be omitted.

[0029] In addition, the described features, structures, or characteristics may be combined in one or more embodiments in any suitable manner. In the following description, numerous specific details are provided to give a thorough understanding of the embodiments of the present disclosure. However, those skilled in the art will realize that one or more of the specific details may be omitted in practicing the technical solutions of the present disclosure, or other methods, components, devices, steps, etc. may be adopted. In other cases, well-known structures, methods, devices, implementations, materials, or operations are not shown or described in detail to avoid obscuring various aspects of the present disclosure.

[0030] In the present disclosure, unless otherwise clearly specified and defined, terms such as "connected" and "coupled" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be an electrical connection or communicate with each other; it may be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0031] In addition, in the description of the present utility model, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. "And / or" describes the association relationship of associated objects and indicates that three relationships may exist. For example, A and / or B may represent three situations: A exists alone, B exists alone, and A and B exist simultaneously. The symbol " / " generally represents an "or" relationship between the associated objects before and after. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0032] In one embodiment, Figure 1 A first structural schematic diagram of a water purifier is shown, as Figure 1 shown, the water purifier includes: a water purification and filtration module 10, a pure water filtration module 20, a temperature detection device 30, a first hot water switch valve 40, a second hot water switch valve 50, a raw water pipeline 01, a hot water pipeline 02, a pure water outlet end a, and a wastewater outlet end b.

[0033] Among them, the raw water pipeline 01 is connected to the first end of the first hot water switch valve 40, the second end of the first hot water switch valve 40 is connected to the water inlet end of the water purification filter module 10, the hot water pipeline 02 is connected to the raw water pipeline 01, the hot water pipeline 02 is provided with the second hot water switch valve 50, the temperature detection device 30 is provided on the raw water pipeline 01, and the temperature detection device 30 is used to detect the water temperature flowing to the water inlet end of the water purification filter module 10, the water outlet end of the water purification filter module 10 is connected to the water inlet end of the pure water filter module 20, the water outlet end of the pure water filter module 20 is connected to the pure water outlet end a, and the wastewater end of the pure water filter module 20 is connected to the wastewater outlet end b.

[0034] The first hot water on / off valve and the second hot water on / off valve may be on / off valves. The raw water pipeline and the hot water pipeline may be metal pipes, plastic-coated metal pipes, or plastic pipes. The hot water in the hot water pipeline may be 100°C boiling water. The water purification filter module is used to filter mixed water to supply purified water, and the pure water filter module is used to filter purified water to supply pure water.

[0035] For example, in winter, due to the low outdoor ambient temperature, the temperature of the raw water (i.e., tap water) in the raw water pipeline is lower than the lower temperature limit (such as 5°C). If the water purification filter module and the pure water filter module filter the raw water normally at this time, the filter element of the water purifier will be frozen, cracked, and leaked, and it will easily become brittle, cracked, or damaged, affecting the filtering effect of the filter element. In the present application, when the temperature detection device detects that the temperature of the raw water in the raw water pipeline is lower than the lower temperature limit, the second hot water switch valve of the hot water pipeline can be opened to mix the hot water in the hot water pipeline and the raw water in the raw water pipeline. When the temperature of the mixed water reaches a preset temperature value (such as 37°C), the first hot water switch valve is controlled to open so that the mixed water is filtered by the water purification filter module and the pure water filter module in turn, and then the pure water is supplied to the pure water outlet, thereby preventing the filter element of the water purifier from being frozen, cracked, and leaking, thereby improving the life of the filter element.

[0036] For example, in summer, due to the high outdoor ambient temperature, the temperature of the raw water (i.e., tap water) in the raw water pipeline is higher than the upper temperature limit (such as 40°C). If the water purification filter module and the pure water filter module filter the raw water normally at this time, the filter element of the water purifier will soften, melt or deform, thereby increasing the filter pore size of the filter element and worsening the filtering effect. In this application, when the temperature detection device detects that the raw water temperature in the raw water pipeline is higher than the upper temperature limit, an alarm message can be issued by the temperature detection device to keep the second hot water switch valve on the hot water pipeline closed, and the water purification filter module and the pure water filter module are closed at the same time, so that the water purifier cannot prepare pure water normally, avoid softening, melting or deformation of the filter element of the water purifier, and improve the life of the filter element. For example, the alarm message can be 11. When the alarm message is 11, it means that the raw water temperature is higher than the upper temperature limit.

[0037] For example, when the temperature detection device detects that the temperature of the raw water in the raw water pipeline is between the lower temperature limit and the upper temperature limit, the second hot water switch valve on the hot water pipeline can be kept closed, and at the same time, the first hot water switch valve is opened to allow the raw water in the raw water pipeline to be filtered in turn through the water purification filter module and the pure water filter module and then supply pure water to the pure water outlet normally.

[0038] In one embodiment, to meet user requirements for other pure water temperatures, such as fresh water or 50°C water, a heating device (such as a heat exchanger) can be installed in the pipeline between the pure water outlet and the pure water filtration module to heat the mixed water flowing to the pure water outlet before supplying hot water. Based on this, if the pure water filtration module supplies warm water at the outlet, the heating device can shorten the heating time of the mixed water, reducing user waiting time and improving the water output efficiency of the water purifier.

[0039] Alternatively, the opening of the second hot water on-off valve can be adjusted to control the mixing ratio of raw water in the raw water pipe and hot water in the hot water pipe, thereby controlling the temperature of the mixed water, reducing user waiting time and improving the water output efficiency of the water purifier. The raw water can be tap water at room temperature.

[0040] Optionally, a flow meter (not shown in the figure) can be set on the hot water pipe. When the second hot water switch valve is opened, the flow value of the hot water in the hot water pipe can be detected by the flow meter, and the opening of the second hot water switch valve can be controlled according to the flow value to control the mixing ratio of the raw water in the raw water pipe and the hot water in the hot water pipe, so as to control the temperature of the mixed water, reduce the user's waiting time, and improve the water output efficiency of the water purifier.

[0041] In this embodiment, through the above structure and its connection, when it is detected that the raw water temperature in the raw water pipeline is too low, the second hot water switch valve can be opened to mix the hot water in the hot water pipeline with the raw water in the raw water pipeline and then flow to the first hot water switch valve. When the temperature detection device detects that the temperature of the mixed water reaches the preset temperature threshold, the first hot water switch valve is opened, and after passing through the water purification filtration module and the pure water filtration module in sequence, pure water is supplied to the pure water outlet end. When the temperature detection device detects that the raw water temperature in the raw water pipeline is too high, an alarm can be issued through the temperature detection device, the second hot water switch valve is kept closed, and at the same time, the first hot water switch valve, the water purification filtration module, and the pure water filtration module are closed, so that the water purifier cannot produce water normally to protect the filter element. When the temperature detection device detects that the raw water temperature in the raw water pipeline is normal, the second hot water switch valve can be kept closed, and at the same time, the first hot water switch valve is opened, so that the raw water in the raw water pipeline passes through the water purification filtration module and the pure water filtration module in sequence and then is supplied to the pure water outlet end. It can be seen that in the solution of the present application, by setting the hot water pipeline, the first hot water switch valve, the temperature detection device, and the second hot water switch valve, tap water with too high temperature or too low temperature can be prevented from flowing through the filter element of the water purifier, which is beneficial to improving the service life of the filter element in the water purifier. It can be seen that in the solution of the present application, by setting the hot water pipeline, the first hot water switch valve, the temperature detection device, and the second hot water switch valve, tap water with too high temperature or too low temperature can be prevented from flowing through the filter element of the water purifier, which is beneficial to improving the service life of the filter element in the water purifier.

[0042] In one embodiment, as Figure 2 shown, the water purifier further includes: a first reversing valve 60 and a second reversing valve 70.

[0043] Wherein, the first end of the first reversing valve 60 is connected to the wastewater end of the pure water filtration module 20, the second end of the first reversing valve 60 is connected to the wastewater outlet end b, the third end of the first reversing valve 60 is connected to the first end of the second reversing valve 70, the second end of the second reversing valve 70 is connected to the water outlet end of the water purification filtration module 10, and the third end of the second reversing valve 70 is connected to the water inlet end of the pure water filtration module 20.

[0044] The first reversing valve and the second reversing valve are reversing valves. The first reversing valve is used to control the water flow direction and flow rate of the wastewater. The second reversing valve is used to control the water flow direction and flow rate of the purified water.

[0045] In an application scenario, when the water purification filtration module prepares purified water, the pure water filtration module is closed, the third end of the second reversing valve is closed, and the first reversing valve is opened, so that the purified water of the water purification filtration module can flow to the first reversing valve through the second end of the second reversing valve to wash the filter element of the pure water filtration module and extend the service life of the filter element.

[0046] In an application scenario, the water quality of the concentrated water discharged by the pure water filtration module is often overlooked. However, the concentrated water discharged by the pure water filtration module can be used for washing vegetables, dishes, washing faces, etc. Scale, impurities and other contaminants accumulated in the pipeline between the wastewater end and the wastewater outlet end of the pure water filtration module for a long time will seep into the concentrated water, deteriorating the water quality of the concentrated water and even causing contamination by bacteria and viruses. Therefore, when the water purification filtration module prepares purified water, the pure water filtration module is closed, the third end of the second reversing valve is closed, and the first reversing valve is opened, so that the purified water of the water purification filtration module can flow through the second end of the second reversing valve to the first reversing valve, regularly flushing the pipeline between the wastewater end and the wastewater outlet end of the pure water filtration module to avoid contamination of the concentrated water.

[0047] In one embodiment, as Figure 3 shown, the water purifier further includes: a booster pump 80.

[0048] Wherein, the booster pump 80 is on the pipeline between the water outlet end of the water purification filtration module 10 and the water inlet end of the pure water filtration module 20.

[0049] In this embodiment, by arranging a booster pump on the pipeline between the water outlet end of the water purification filtration module and the water inlet end of the pure water filtration module, the booster pump can boost the purified water discharged from the water outlet end of the water purification filtration module, increasing the osmotic pressure when the purified water is filtered in the pure water filtration module to increase the filtration volume, thereby effectively improving the filtration efficiency of the pure water filtration module.

[0050] In one embodiment, as Figure 4 shown, the water purifier further includes a pure water switch valve 90, a pure water return check valve 100 and a pure water return pipeline 03.

[0051] Wherein, the first end of the pure water return pipeline 03 is connected to the pipeline between the water outlet end and the pure water outlet end a of the pure water filtration module 20, the second end of the pure water return pipeline 03 is connected to the pipeline between the first end of the booster pump 80 and the third end of the second reversing valve 70, and the pure water return check valve 100 and the pure water switch valve 90 are sequentially arranged on the pure water return pipeline 03.

[0052] Among them, the pure water return pipeline can be a metal pipe, a plastic-coated metal pipe or a plastic pipe. The pure water switch valve is a switch valve for controlling the on-off of the pure water return pipeline, and the pure water return check valve is a check valve for preventing the purified water discharged from the water outlet end of the water purification filtration module from flowing back to the water outlet end of the pure water filtration module through the pure water return pipeline.

[0053] In one application scenario, the water purifier can be started to prepare pure water, and the reflux switch valve can be opened to pressurize the pure water through the booster pump and then flush the pure water filter module. Each time the filter element of the pure water filter module is flushed, the pure water of this flushing will be discharged to the wastewater discharge end as waste water until the number of times the flushing pure water is discharged exceeds the preset discharge threshold, or until the flushing time reaches the preset time, the flushing process will be ended.

[0054] In one embodiment, if Figure 5 As shown, the water purifier further includes: a gas switching valve 110 and a gas transmission pipeline 04.

[0055] The gas switch valve 110 is provided on the gas transmission pipeline 04 , and the gas transmission pipeline is connected to the pipeline between the first end of the booster pump 80 and the water outlet end of the water purification filter module 10 .

[0056] The gas transmission pipeline can be a metal pipe, a plastic-coated metal pipe or a plastic pipe. The gas switch valve is an on-off valve used to control the gas flow in the gas transmission pipeline.

[0057] In this embodiment, when the water purifier is not preparing clean water and pure water, the gas switch valve and the booster pump can be opened. After the gas in the gas transmission pipeline is pressurized by the booster pump, the residual water in the pure water filter module is emptied and the residual water is discharged through the wastewater discharge pipe. This can reduce pipeline pollution and improve the water quality of the prepared pure water.

[0058] In one embodiment, an air filter is provided in the gas transmission pipeline.

[0059] Among them, the air filter element is used to filter the gas in the gas transmission pipeline to prevent impurities in the gas from contaminating the pipeline and pure water filtration module.

[0060] In one application scenario, if the gas source of the gas transmission pipeline is air, the impurities contained in the gas in the gas transmission pipeline can be filtered through an air filter.

[0061] In one embodiment, if Figure 6 As shown, the water purifier further includes: a purified water outlet end c, a third reversing valve 120 and a fourth reversing valve 130 .

[0062] Among them, the first end of the third reversing valve 120 is connected to the third end of the first reversing valve 60, the second end of the third reversing valve 120 is connected to the purified water outlet end c, the third end of the third reversing valve 120 is connected to the first end of the second reversing valve 70, the first end of the fourth reversing valve is connected to the water outlet end of the pure water filtration module 20, the second end of the fourth reversing valve is connected to the pure water outlet end a, and the third end of the first reversing valve is connected to the pipeline between the first end of the second reversing valve 70 and the third end of the third reversing valve 120.

[0063] Among them, the third reversing valve is a reversing valve, which is used to control the flow direction and flow rate of the purified water discharged from the purified water filtration module together with the second reversing valve. The fourth reversing valve is a reversing valve. When the first end and the third end of the fourth reversing valve are opened and the second end of the fourth reversing valve is closed, the pure water prepared by the pure water filtration module flows through the third end of the fourth reversing valve to the pipeline between the first end of the second reversing valve and the third end of the third reversing valve.

[0064] In one embodiment, the purified water prepared by the purified water filtration module retains the minerals in the raw water and also performs primary filtration on the raw water (i.e., filters large particle impurities and residual chlorine and other substances in the raw water). The purified water and the pure water prepared by the pure water are mixed in proportion to obtain mineral water. Among them, the proportion of the purified water and the pure water can be set according to the actual application scenario and is not specifically limited here, such as being set by the user himself. When the user needs to obtain mineral water, the purified water filtration module, the pure water filtration module, the second reversing valve, the second end and the third end of the third reversing valve, and the first end and the third end of the fourth reversing valve can be opened, and the first end of the third reversing valve and the second end of the fourth reversing valve can be closed, so that the purified water obtained by filtering the raw water in the mixed water or the raw water pipeline through the purified water filtration module, a part of which flows through the second end of the second reversing valve to the third end of the third reversing valve, and the other part of the raw water is filtered by the pure water filtration module to obtain pure water, which flows through the third end of the fourth reversing valve to the third end of the third reversing valve, so that the pure water and the purified water are mixed to obtain mineral water, and then flow through the second end and the third end of the third reversing valve to the purified water outlet end.

[0065] In this embodiment, a purified water outlet end is added to meet the various water use requirements of users.

[0066] In one embodiment, as Figure 6 shown, the water purifier further includes a water quality detection sensor 130.

[0067] Among them, the water quality detection sensor 130 is arranged on the pipeline between the water outlet end of the purified water filtration module 10 and the water inlet end of the pure water filtration module 20.

[0068] In this embodiment, the water quality detection sensor is used to detect the water quality of the purified water in the pipeline between the water outlet end of the purified water filtration module and the water inlet end of the pure water filtration module. According to the water quality of the purified water, the opening degrees of the first end and the second end of the first reversing valve are adjusted, so as to ensure the water quality of the pure water discharged by the pure water filtration module. For example, when the water quality of the purified water is lower, the opening degrees of the first end and the second end of the first reversing valve are larger; conversely, the opening degrees of the first end and the second end of the first reversing valve are smaller.

[0069] In one embodiment, please refer to Figure 7 , the purified water filtration module 10 includes a polypropylene filter element 101 and an activated carbon filter element 102.

[0070] Among them, the water inlet end of the polypropylene filter element 101 is connected to the second end of the first hot water switch valve 40, the water outlet end of the polypropylene filter element 101 is connected to the water inlet end of the activated carbon filter element 102, and the water outlet end of the activated carbon filter element 102 is connected to the water inlet end of the pure water filtration module 20. [[ID=~]]

[0071] In this embodiment, the polypropylene filter element has a small pore size and high filtration accuracy, can effectively filter tiny particles and impurities in the liquid, improve the filtration efficiency and purity, and has high strength, wear resistance, high temperature resistance, pressure resistance, etc., and can filter the mixed water with a temperature reaching the preset temperature threshold. The activated carbon filter element can adsorb the organic matter in the water flowing to the purified water filtration module, thereby purifying the water quality and further improving the quality of the water.

[0072] Among them, the preset temperature threshold can be determined according to the filter elements of the purified water filtration module and the pure water filtration module, and the present application does not make specific limitations.

[0073] In one embodiment, the pure water filtration module includes a reverse osmosis filter element.

[0074] In this embodiment, the reverse osmosis filter element can remove suspended particles, colloids, organic matter, bacteria, viruses and other microorganisms and other pollutants in the water, which is beneficial to improving the water quality of the pure water discharged by the pure water filtration module.

[0075] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the above-mentioned division of each functional unit and module is used as an example for illustration. In actual applications, the above-mentioned functions can be allocated to different functional units and modules according to needs, that is, the internal structure of the device is divided into different functional units or modules to complete all or part of the functions described above.

[0076] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A water purifier, characterized in that: The water purifier comprises: A water purification filter module, a pure water filter module, a temperature detection device, a first hot water switch valve, a second hot water switch valve, a raw water pipeline, a hot water pipeline, a pure water outlet and a waste water outlet, the raw water pipeline is connected to the first end of the first hot water switch valve, the second end of the first hot water switch valve is connected to the water inlet of the water purification filter module, the hot water pipeline is connected to the raw water pipeline, the hot water pipeline is provided with the second hot water switch valve, the temperature detection device is provided on the raw water pipeline, the temperature detection device is used to detect the water temperature flowing to the water inlet of the water purification filter module, the water outlet of the water purification filter module is connected to the water inlet of the pure water filter module, the water outlet of the pure water filter module is connected to the pure water outlet, and the waste water end of the pure water filter module is connected to the waste water outlet.

2. The water purifier according to claim 1, characterized in that The water purifier also includes: A first reversing valve and a second reversing valve, the first end of the first reversing valve is connected to the wastewater end of the pure water filter module, the second end of the first reversing valve is connected to the wastewater outlet end, the third end of the first reversing valve is connected to the first end of the second reversing valve, the second end of the second reversing valve is connected to the outlet end of the pure water filter module, and the third end of the second reversing valve is connected to the water inlet end of the pure water filter module.

3. The water purifier according to claim 2, characterized in that, The water purifier also includes: A booster pump is provided on a pipeline between the water outlet of the water purification filter module and the water inlet of the pure water filter module.

4. The water purifier according to claim 3, wherein The water purifier also includes a pure water switch valve, a pure water reflux check valve and a pure water reflux pipeline. The first end of the pure water reflux pipeline is connected to the pipeline between the water outlet end of the pure water filter module and the pure water outlet end. The second end of the pure water reflux pipeline is connected to the pipeline between the first end of the boosting pump and the third end of the second reversing valve. The pure water reflux check valve and the pure water switch valve are sequentially arranged on the pure water reflux pipeline.

5. The water purifier according to claim 3, characterized in that The water purifier also includes: a gas switching valve and a gas transmission pipeline, the gas switching valve is arranged on the gas transmission pipeline, and the gas transmission pipeline is connected to the pipeline between the first end of the booster pump and the water outlet end of the water purification filter module.

6. The water purifier according to claim 5, wherein, An air filter element is provided in the gas transmission pipeline.

7. The water purifier according to claim 2, characterized in that The water purifier also includes: a purified water outlet and a third reversing valve, the first end of the third reversing valve is connected to the third end of the first reversing valve, the second end of the third reversing valve is connected to the purified water outlet, and the third end of the third reversing valve is connected to the first end of the second reversing valve.

8. The water purifier according to claim 2, wherein, The water purifier further comprises a water quality detection sensor, which is arranged in a pipeline between the water outlet of the water purification filter module and the water inlet of the pure water filter module.

9. The water purifier according to claim 1, wherein, The water purification filter module includes a polypropylene filter element and an activated carbon filter element. The water inlet end of the polypropylene filter element is connected to the second end of the first hot water switch valve, the water outlet end of the polypropylene filter element is connected to the water inlet end of the activated carbon filter element, and the water outlet end of the activated carbon filter element is connected to the water inlet end of the pure water filter module.

10. The water purifier according to claim 1, wherein, The pure water filtration module includes a reverse osmosis filter element.

Images