Waterway system of water purifier

Abstract

The invention discloses a water path system of a water purifier, and relates to the technical field of water purification, the water path system of the water purifier comprises a water inlet path, a hot water path and a first backflow path; a filtering module is arranged on the water inlet path; a hot tank and a pressurizing diaphragm pump are arranged on the hot water path, the pressurizing diaphragm pump is located on the downstream of the hot tank, and the hot tank is provided with a water storage cavity used for storing heated hot water; one end of the hot water path communicates with the water outlet side of the filtering module, and the other end is used for discharging hot water; one end of the first backflow waterway is connected with the hot water waterway, and the other end is communicated with the water storage cavity. The water path system of the water purifier can prevent residual water from breeding bacteria to influence the water quality, meanwhile, ensures that the temperature of hot water flowing out during next use is stable, and improves the use experience of a user.

Description

Technical Field

[0001] The present invention relates to the technical field of water purification, and in particular to a water channel system of a water purifier. Background Art

[0002] At present, water purifiers with the functions of purifying and heating water usually use a water pump to discharge the hot water in the hot tank to the water outlet for users to use. The typical structure of a water purification system usually includes a filter module, a hot tank and a water supply pipeline system. However, when the equipment stops running, an uncontrollable stagnant water area will form in the pipeline section between the water pump outlet and the water outlet. The high-temperature water remaining in the hot water pipeline will form a "dangerous temperature range" of 30-50°C due to natural cooling. This temperature environment is very easy to breed bacteria. In addition, in conventional designs, the length of the pipeline from the water outlet of the hot tank to the water faucet is generally between 1.5 and 3 meters. After shutdown, the temperature of the remaining water in this section of the pipeline will drop at a rate of about 0.5°C / minute. When the user uses it again, it will flow out first, resulting in a deviation between the temperature of the hot water flowing out and the set temperature, greatly reducing the user experience. Summary of the invention

[0003] The main purpose of the present invention is to provide a water circuit system for a water purifier, aiming to solve at least one technical problem raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention proposes a water purifier water system, which includes an inlet waterway, a hot water waterway and a first return waterway; a filter module is arranged on the inlet waterway; a hot water tank and a booster diaphragm pump are arranged on the hot water waterway, the booster diaphragm pump is located downstream of the hot tank, the hot tank has a water storage chamber, and the water storage chamber is used to store heated hot water; one end of the hot water waterway is connected to the water outlet side of the filter module, and the other end is used to output hot water; one end of the first return waterway is connected to the hot water waterway, and the other end is connected to the water storage chamber.

[0005] In one embodiment, the water inlet waterway is also provided with a water inlet solenoid valve and a booster pump, the filtration module includes a composite filter element and a reverse osmosis filter element, the composite filter element includes a pre-filter element and a post-filter element, and the water flows through the water inlet solenoid valve, the pre-filter element, the booster pump, the reverse osmosis filter element and the post-filter element in sequence, and the water outlet side of the post-filter element and the water inlet side of the hot tank are connected through the hot water waterway.

[0006] In one embodiment, the water purifier water system further includes a second return water channel, one end of which is connected to the water outlet side of the post-filter element, and the other end of which is connected to the water outlet side of the pre-filter element.

[0007] In one embodiment, the hot tank is provided with a water level detection assembly, the water level detection assembly includes a low water level detection component, a middle water level detection component and a high water level detection component, and the water level monitoring assembly is used to detect the water level in the water storage chamber.

[0008] In one embodiment, the connection point between the first return water channel and the hot water water channel is located downstream of the booster diaphragm pump.

[0009] In one embodiment, a reflux port is provided on the top of the hot tank, and the first reflux water path is connected to the water storage chamber through the reflux port.

[0010] In one embodiment, a connecting column is provided on the top of the hot tank, the reflux port is formed on the connecting column, and the connecting column is protruding from the upper surface of the hot tank.

[0011] In one embodiment, the connecting column forms a reflux channel, one end of the reflux channel is the reflux port, and the other end is connected to the water storage chamber inside the hot tank.

[0012] In one embodiment, the reflux channel includes a first channel and a second channel that are connected, wherein the first channel is arranged close to one end of the reflux port; and a diameter of the first channel is smaller than a diameter of the second channel.

[0013] In one embodiment, the booster diaphragm pump is disposed at the bottom of the hot tank, or the booster diaphragm pump is disposed at one side of the hot tank.

[0014] In one embodiment, the water purifier water system also includes a conventional water outlet waterway, one end of which is connected to the water outlet side of the filter module, and the other end is used to discharge water; wherein, the conventional water outlet waterway includes a first water outlet branch and a second water outlet branch, and a pipeline machine is provided on the first water outlet branch.

[0015] In one embodiment, the water purifier water system further includes an exhaust path, one end of which is connected to the water storage chamber, and the other end of which is connected to the external atmosphere.

[0016] The technical solution of the present invention connects the hot water water circuit and the water storage chamber of the hot tank through the setting of the first return water circuit, so that when the water circuit system is shut down, the water in the connecting pipe between the water outlet end and the water outlet of the booster diaphragm pump can flow back to the water storage chamber of the hot tank through the first return water circuit, avoiding the formation of stagnant water area, thereby preventing the remaining water from breeding bacteria and affecting the water quality. At the same time, it also ensures that the temperature of the hot water flowing out is stable when it is used next time, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention 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 invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of a water system of a water purifier according to an embodiment of the present invention;

[0019] Figure 2 A schematic diagram of the structure of a water purifier applied to the water circuit system of the water purifier provided by the present invention;

[0020] Figure 3 for Figure 2 Schematic diagram of the internal structure of the water purifier;

[0021] Figure 4 for Figure 3 A cross-sectional view of the structure in FIG.

[0022] Figure 5 for Figure 4 A partial enlarged view of point A in the middle.

[0023] Description of Figure Numbers:

[0024] 10. Water purifier water system; 11. Water inlet waterway; 12. Hot water waterway; 13. First return waterway; 14. Conventional water outlet waterway; 14a. First water outlet branch; 14b. Second water outlet branch; 15. Exhaust waterway; 16. Wastewater waterway; 17. Second return waterway;

[0025] 100, filter module; 110, composite filter element; 120, reverse osmosis filter element; 200, hot tank; 210, water storage chamber; 220, connecting column; 220a, reflux port; 221, reflux channel; 221a, first channel; 221b, second channel; 230, trough; 240, water level detection component; 300, booster diaphragm pump; 400, pipeline machine; 500, water inlet solenoid valve; 600, booster pump; 700, control switch.

[0026] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0029] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0030] At present, water purifiers with the functions of purifying and heating water usually use a water pump to discharge the hot water in the hot tank to the water outlet for users to use. The typical structure of a water purification system usually includes a filter module, a hot tank and a water supply pipeline system. However, when the equipment stops running, an uncontrollable stagnant water area will form in the pipeline section between the water pump outlet and the water outlet. The high-temperature water remaining in the hot water pipeline will form a "dangerous temperature range" of 30-50°C due to natural cooling. This temperature environment is very easy to breed bacteria. In addition, in conventional designs, the length of the pipeline from the water outlet of the hot tank to the water faucet is generally between 1.5 and 3 meters. After shutdown, the temperature of the remaining water in this section of the pipeline will drop at a rate of about 0.5°C / minute. When the user uses it again, it will flow out first, resulting in a deviation between the temperature of the hot water flowing out and the set temperature, greatly reducing the user experience.

[0031] In view of this, the present invention proposes a water purifier water system, which can solve the above-mentioned technical problems. The water purifier water system of the present invention is applied to a water purifier, and the water purifier can be a water purifier, an under-the-sink water purifier, etc.

[0032] See also Figure 1 and Figure 2 In one embodiment of the present invention, the water purifier water system 10 includes an inlet waterway 11, a hot water waterway 12 and a first return waterway 13; a filter module 100 is arranged on the inlet waterway 11; a hot water tank 200 and a booster diaphragm pump 300 are arranged on the hot water waterway 12, and the booster diaphragm pump 300 is located downstream of the hot water tank 200, and the hot water tank 200 has a water storage chamber 210, and the water storage chamber 210 is used to store heated hot water; one end of the hot water waterway 12 is connected to the water outlet side of the filter module 100, and the other end is used to output hot water; one end of the first return waterway 13 is connected to the hot water waterway 12, and the other end is connected to the water storage chamber 210.

[0033] Specifically, a filter module 100 is provided on the water inlet waterway 11. The water inlet waterway 11 is usually made of corrosion-resistant plastic pipes, such as PP (polypropylene) pipes. One end of the water inlet waterway 11 is connected to tap water, and the function of the water inlet waterway 11 is to introduce an external water source into the water purifier for treatment. The filter module 100 is arranged on the water inlet waterway 11, and can filter the tap water flowing into the water purifier. Further, the filter module 100 may include a composite filter element 110 and a reverse osmosis filter element 120, and the composite filter element 110 further includes a pre-filter element and a post-filter element (not shown in the figure). The pre-filter element is generally made of PP cotton, cylindrical in shape, and is installed near the water inlet, and is mainly used to filter large particles of impurities, such as mud, rust, etc. The reverse osmosis filter element 120 is a roll structure, and the material is mostly an aromatic polyamide composite membrane, which removes heavy metal ions, bacteria, viruses and other tiny impurities in the water through high-precision filtration. The post-filter element is generally made of activated carbon and is columnar in shape. It is installed after the reverse osmosis filter element 120 to improve the taste of water. Such a structural design can effectively perform multi-stage filtration on the raw water, ensure that the water entering the hot tank 200 reaches a higher purity, and improve the quality of hot water.

[0034] The hot water circuit 12 is provided with a hot tank 200 and a booster diaphragm pump 300, and the booster diaphragm pump 300 is located downstream of the hot tank 200. The hot water circuit 12 also uses high temperature resistant plastic pipes, such as PPSU (polyphenylsulfone) pipes. The hot tank 200 has a water storage chamber 210 for storing heated hot water. The hot tank 200 is generally cylindrical and made of stainless steel, with good thermal insulation performance. The water inlet side of the hot tank 200 is connected to the water outlet side of the post-filter through the hot water circuit 12, and receives filtered clean water for heating and storage. The booster diaphragm pump 300 is arranged at the bottom or one side of the hot tank 200, and its function is to pressurize the hot water in the hot tank 200 so that it can be smoothly discharged to the water outlet for users to use. When the booster diaphragm pump 300 is working, it can overcome the resistance of hot water in the pipeline, ensure the stability of the water outlet flow and pressure of the hot water, and enhance the user experience. One end of the hot water channel 12 is connected to the water outlet side of the filter module 100, and the other end is used to output hot water to provide hot water supply for users.

[0035] One end of the first return waterway 13 is connected to the hot water waterway 12, and the other end is connected to the water storage chamber 210. The first return waterway 13 uses the same high temperature resistant plastic pipe as the hot water waterway 12. The function of the first return waterway 13 is to allow the hot water in the connecting pipe between the water outlet end and the water outlet of the booster diaphragm pump 300 to flow back to the water storage chamber 210 of the hot tank 200 through the first return waterway 13 when the system is shut down, thereby avoiding the formation of a stagnant water area. For example, when the user stops taking water and the system shuts down, the hot water in the hot water pipeline can flow back to the water storage chamber 210 through the first return waterway 13, thereby avoiding the formation of a stagnant water area and preventing the remaining water from breeding bacteria and affecting the water quality. At the same time, it also ensures that the temperature of the hot water flowing out is stable when it is used next time, thereby improving the user experience.

[0036] The technical solution of the present invention connects the hot water water circuit 12 and the water storage chamber 210 of the hot tank 200 through the setting of the first return water circuit 13, so that when the water system is shut down, the water in the connecting pipe between the water outlet end and the water outlet of the booster diaphragm pump 300 can flow back to the water storage chamber 210 of the hot tank 200 through the first return water circuit 13, avoiding the formation of stagnant water area, thereby preventing the remaining water from breeding bacteria and affecting the water quality, and also ensuring the temperature of the hot water flowing out at the next use is stable, thereby improving the user experience.

[0037] See also Figure 1 In one embodiment, a water inlet solenoid valve 500 and a booster pump 600 are also provided on the water inlet waterway 11, the filter module 100 includes a composite filter element 110 and a reverse osmosis filter element 120, the composite filter element 110 includes a pre-filter element and a post-filter element, and the water flows through the water inlet solenoid valve 500, the pre-filter element, the booster pump 600, the reverse osmosis filter element 120 and the post-filter element in sequence, and the water outlet side of the post-filter element and the water inlet side of the hot tank 200 are connected through the hot water waterway 12.

[0038] Specifically, the filtration module 100 includes a composite filter element 110 and a reverse osmosis filter element 120, and the composite filter element 110 further includes a pre-filter element and a post-filter element (not shown in the figure). The pre-filter element is generally made of PP cotton and is cylindrical in shape. It is installed near the water inlet and is mainly used to filter large particles of impurities, such as mud, rust, etc. The reverse osmosis filter element 120 is a roll structure, and the material is mostly an aromatic polyamide composite membrane. Through high-precision filtration, it removes heavy metal ions, bacteria, viruses and other tiny impurities in the water. The post-filter element is generally made of activated carbon and is columnar in shape. It is installed after the reverse osmosis filter element 120 to improve the taste of water. Such a structural design can effectively perform multi-stage filtration on the raw water, ensure that the water entering the hot tank 200 reaches a higher degree of purity, and improve the quality of hot water. The water flows through the water inlet solenoid valve 500, the pre-filter element, the booster pump 600, the reverse osmosis filter element 120 and the post-filter element in sequence, and the water outlet side of the post-filter element and the water inlet side of the hot tank 200 are connected through the hot water water path 12. Such a structural design can effectively perform multi-stage filtration on the raw water, ensure that the water entering the hot tank 200 reaches a higher purity, and improve the quality of hot water.

[0039] Further, the water purifier water system 10 also includes a wastewater waterway 16, one end of which is connected to the wastewater outlet side of the reverse osmosis filter element 120, and the other end is used to discharge wastewater. Specifically, the main function of the reverse osmosis filter element 120 is to remove various harmful substances in the water, such as heavy metal ions, bacteria, viruses, organic matter, etc. The wastewater waterway 16 discharges the concentrated water containing these harmful substances to prevent these substances from circulating in the system, thereby ensuring that the water flowing out after filtering the reverse osmosis filter element 120 has a higher purity and better water quality, meeting the user's demand for high-quality drinking water. In addition, the existence of the wastewater waterway 16 can ensure the pressure difference and water flow rate on both sides of the reverse osmosis membrane, so that the reverse osmosis process can proceed smoothly, maintain a higher filtration efficiency, and ensure the output and quality of purified water. By discharging wastewater, impurities can also be prevented from forming dirt on the surface of the reverse osmosis membrane, ensuring that the reverse osmosis filter element 120 can work continuously and stably, and extend its service life.

[0040] See also Figure 1 In one embodiment, the water purifier water system further includes a second reflux waterway 17, one end of which is connected to the water outlet side of the post-filter element, and the other end is connected to the water outlet side of the pre-filter element. Specifically, after the reverse osmosis filter element is used for a long time, water will accumulate inside the filter element, which will become stale over time. Therefore, by setting the second reflux waterway 17, the water inside this part of the filter element can be refluxed for refiltration. At the same time, the second reflux waterway 17 can reflux the water in the downstream pipeline of the post-filter element to the reverse osmosis filter element and the post-filter element through the second reflux waterway 17 for filtration to ensure water quality.

[0041] See also Figure 1 In one embodiment, the hot tank is provided with a water level detection component 240, and the water level detection component 240 includes a low water level detection component, a middle water level detection component and a high water level detection component (not shown in the figure), and the water level monitoring component is used to detect the water level in the water storage chamber 210. Among them, the high water level detection component is used to detect the upper limit of the water level in the water storage chamber 210. When the water level in the water storage chamber 210 reaches the high water level, the high water level detection component will send a signal. At this time, the system will control the water inlet device to stop injecting water into the water storage chamber 210 to prevent hot water from overflowing from the water storage chamber 210, ensuring that the hot water supply system can operate within a reasonable water level range, and avoiding equipment damage or safety hazards caused by overflow of hot water due to excessively high water levels. The low water level detection component is used to monitor the lower limit of the water level in the water storage chamber 210. When the water level drops to the low water level, it will send a signal to the system to prompt that hot water needs to be replenished. After receiving the signal, the system will control the water inlet device and the heating device to work together, inject filtered cold water into the water storage chamber 210 in time and heat it to ensure the continuous supply of hot water and avoid the interruption of hot water supply when the user is using hot water. The setting of the water level detection component 240 can prevent dry boiling and avoid abnormal pressure in the water storage chamber 210, thereby optimizing the user experience.

[0042] Please continue reading Figure 1 In one embodiment, the connection between the first return waterway 13 and the hot water waterway 12 is located downstream of the booster diaphragm pump 300. Specifically, the connection between the first return waterway 13 and the hot water waterway 12 is located downstream of the booster diaphragm pump 300. This connection method ensures that part of the hot water can flow back to the hot tank 200 after being pressurized. In practical applications, the connection part can be connected by hot melt connection or quick connector connection to ensure the sealing of the connection and prevent hot water leakage. Through this connection method, the circulation of hot water in the water system is more reasonable, which effectively solves the problem of cooling the remaining water in the hot water pipeline, ensures the safety of users' water use, and can also reduce the temperature deviation when the user uses hot water again, thereby improving the user experience.

[0043] See also Figures 3 to 5, further, a reflux port 220a is provided at the top of the hot tank 200, and the first reflux waterway 13 is connected to the water storage chamber 210 through the reflux port 220a. Specifically, a reflux port 220a is provided at the top of the hot tank 200, and the first reflux waterway 13 is connected to the water storage chamber 210 through the reflux port 220a. The reflux port 220a is generally a circular opening, and its diameter is determined according to the design requirements of the reflux water volume. The reflux port 220a is arranged at the top of the hot tank 200, which is conducive to the reflux of hot water, avoids the formation of dead corners during reflux, ensures that the hot water in the hot tank 200 can be fully circulated, and at the same time, it can avoid the precipitation of impurities that may exist at the bottom of the hot tank 200 to affect the reflux, and ensure the smoothness of the reflux and the quality of the hot water. The position of the reflux port 220a can be located at the top center of the hot tank 200 or a suitable position close to the edge, so as to facilitate connection with the first reflux waterway 13.

[0044] See also Figure 5 In one embodiment, a connecting column 220 is provided on the top of the hot tank 200 , and a reflux port 220 a is formed on the connecting column 220 , and the connecting column 220 is protruded from the upper surface of the hot tank 200 .

[0045] Specifically, a connecting column 220 is provided on the top of the hot pot 200, and a reflux port 220a is formed on the connecting column 220, and the connecting column 220 is protruded from the upper surface of the hot pot 200. The connecting column 220 is generally cylindrical, and the connecting column 220 is usually made of the same material as the hot pot 200, such as food-grade plastic or stainless steel, to ensure overall hygiene and corrosion resistance. The protruding design of the connecting column 220 facilitates the connection between the first reflux waterway 13 and the hot pot 200, and is also convenient for installation and maintenance. The connecting column 220 is located at the center of the top of the hot pot 200 or at a suitable position close to the edge. The specific position can be determined according to the structural design of the hot pot 200 and the layout of the first reflux waterway 13, but it is necessary to ensure that the connection between the connecting column 220 and the first reflux waterway 13 is convenient and does not affect other functions of the hot pot 200. The setting of the connecting column 220 makes the connection between the first return waterway 13 and the hot tank 200 more stable and reliable. The design protruding from the upper surface of the hot tank 200 facilitates the installation and maintenance personnel to perform pipeline connection operations, thereby improving the efficiency of production and maintenance.

[0046] See also Figure 5, further, a sink 230 is provided on the periphery of the connecting column 220. Specifically, a sink 230 is provided on the periphery of the connecting column 220, and the sink 230 surrounds the connecting column 220 and is located outside the outer wall surface of the connecting column 220. The sink 230 is in the shape of an annular groove, and its width and depth are designed according to actual needs. Generally, the width is relatively uniform and the depth is moderate. The sink 230 is used to cooperate with a seal (such as a rubber sealing ring). When the first return waterway 13 is connected to the connecting column 220, the seal is installed in the sink 230 to play a better sealing role and prevent water leakage between the first return waterway 13 and the connecting column 220. Alternatively, if the return pipeline forming the first return waterway 13 is directly sleeved on the connecting column 220, the design of the sink 230 can also limit the circumference of the first return waterway 13.

[0047] Please continue reading Figure 5 In one embodiment, the connecting column 220 is formed with a reflux channel 221, one end of which is a reflux port 220a, and the other end is connected to the water storage chamber 210 inside the hot tank 200. Specifically, a reflux channel 221 is formed inside the connecting column 220, one end of which is a reflux port 220a located on the connecting column 220, and the other end is connected to the water storage chamber 210 inside the hot tank 200, and passes through the connecting column 220. The shape of the reflux channel 221 is generally circular or approximately circular according to its internal structure design, so as to facilitate water flow. The two ends of the reflux channel 221 are respectively connected to the reflux port 220a and the water storage chamber 210 inside the hot tank 200, forming a path for the reflux of residual water. When the residual water in the hot water pipeline enters the reflux port 220a through the reflux pipeline, it can smoothly flow back to the inside of the hot tank 200 through the reflux channel 221. The setting of the reflux channel 221 realizes the effective reflux of residual water, avoids the residual water from remaining in the hot water pipeline, further ensures the water quality, and at the same time maintains the stability of the hot water temperature, thereby improving the user experience.

[0048] Further, the reflux channel 221 includes a first channel 221a and a second channel 221b connected to each other, wherein the first channel 221a is arranged near one end of the reflux port 220a; the diameter of the first channel 221a is smaller than the diameter of the second channel 221b. Specifically, the reflux channel 221 includes a first channel 221a and a second channel 221b connected to each other, wherein the first channel 221a is arranged near one end of the reflux port 220a, and the second channel 221b is connected to the water storage chamber 210 inside the hot tank 200. The first channel 221a and the second channel 221b are both circular channels, and the diameter of the first channel 221a is smaller than the diameter of the second channel 221b. This design forms a structure similar to a constriction. The first channel 221a is located near the reflux port 220a, and the second channel 221b is located near the water storage chamber 210 inside the hot tank 200. The connection position of the two ensures the smooth flow of water. The design that the diameter of the first channel 221a is smaller than the diameter of the second channel 221b makes the water flow velocity accelerate at the first channel 221a when passing through the reflux channel 221, forming a jet-like effect, which can return the remaining water to the hot tank 200 more quickly, reducing the residual time of the remaining water in the pipeline, further improving the reflux efficiency, and ensuring the stability of the water quality and hot water temperature.

[0049] Furthermore, the length of the first channel 221a is greater than the length of the second channel 221b. Specifically, the length of the first channel 221a is greater than the length of the second channel 221b. This length difference is reflected inside the reflux channel 221. The first channel 221a starts from one end close to the reflux port 220a, extends a long distance and then communicates with the shorter second channel 221b. The longer first channel 221a can better utilize the speed and pressure of the water flow, so that the water flow maintains a higher flow rate when passing through the first channel 221a. After entering the second channel 221b, due to the larger diameter of the second channel 221b, the water flow speed is appropriately slowed down, which is conducive to the water flow entering the hot tank 200 smoothly. By setting the length of the first channel 221a to be greater than the length of the second channel 221b, the flow state of the residual water in the reflux channel 221 is optimized, the reflux efficiency is improved, and the residual water in the hot water pipeline is further reduced, which ensures the water quality and the use effect of the hot water.

[0050] See also Figures 2 to 4In one embodiment, the booster diaphragm pump 300 is disposed at the bottom of the hot tank 200, or the booster diaphragm pump 300 is disposed at one side of the hot tank 200. Specifically, the booster diaphragm pump 300 is disposed at the bottom of the hot tank 200, or the booster diaphragm pump 300 is disposed at one side of the hot tank 200. When the booster diaphragm pump 300 is disposed at the bottom of the hot tank 200, it can utilize the gravity of the hot water to more conveniently extract the hot water for pressurization, and it is also beneficial to reduce the length and resistance of the pipeline. When the booster diaphragm pump 300 is disposed on one side of the hot tank 200, it is easy to install and maintain, and can be flexibly adjusted according to the layout of the internal space of the water purifier. Regardless of the setting method, the hot water in the hot tank 200 can be effectively pressurized to ensure that the hot water can be smoothly transported to the water outlet.

[0051] See also Figure 1 In one embodiment, the water purifier water system 10 also includes a conventional water outlet waterway 14, one end of which is connected to the water outlet side of the filter module 100, and the other end is used to discharge water; wherein, the conventional water outlet waterway 14 includes a first water outlet branch 14a and a second water outlet branch 14b, and a pipeline machine 400 is provided on the first water outlet branch 14a.

[0052] Specifically, the water purifier water system 10 also includes a conventional water outlet waterway 14, one end of which is connected to the water outlet side of the filter module 100, and the other end is used to discharge water. The conventional water outlet waterway 14 includes a first water outlet branch 14a and a second water outlet branch 14b, and a pipeline machine 400 is provided on the first water outlet branch 14a. The pipeline machine 400 is mainly used in conjunction with the water purifier to heat, cool or keep warm the water filtered by the water purifier, and provide users with drinking water at different temperatures. The specific functions are as follows:

[0053] (1) Providing drinking water at appropriate temperatures: Water of various temperatures can be provided as needed. For example, water at around 45°C is suitable for mixing milk powder, and the water temperature can be precisely controlled to ensure that the nutrients in the milk powder are not destroyed; water at around 60°C is suitable for making honey water, which can fully dissolve honey and retain its nutrients; water at 85°C-100°C is suitable for making tea, which can better stimulate the aroma and taste of tea.

[0054] (2) Ready to drink, convenient and fast: With instant heating or cooling function, there is no need to boil water in advance or wait for the water to cool down like traditional water dispensers or kettles. Users only need to press the corresponding button when needed to quickly get water of the required temperature, saving time and energy.

[0055] (3) Improve drinking water safety and hygiene: Usually a closed design is adopted, which has less contact with the outside air, can effectively prevent pollutants such as dust and bacteria from entering the water body, and reduce the risk of secondary pollution. Some pipeline machines 400 are also equipped with functions such as ultraviolet antibacterial to further ensure the hygiene and safety of drinking water.

[0056] (4) Save space and cost: Generally, it is small in size and has multiple installation methods such as wall-mounted, desktop, and vertical. It can be flexibly installed according to the actual situation of the home or office space, which can effectively save space. Compared with using bottled water and traditional water dispensers, the pipeline machine 400 is connected to the water purifier, and there is no need to purchase and replace bottled water. Long-term use can reduce the cost of drinking water.

[0057] (5) Optimize the user experience: Some high-end pipeline machines are equipped with intelligent control systems, which can be remotely controlled through mobile phone APP, allowing users to set parameters such as water temperature and water volume in advance. It can also monitor water quality and machine operation status in real time, reminding users to replace filter elements, etc. In addition, electronic touch screens, multi-level water volume adjustment and other designs also make operation more convenient and improve the user experience.

[0058] The second water outlet branch 14b is directly connected to the water outlet side of the filter module 100 to directly flow out pure water at room temperature for users to use. Users can directly obtain filtered but unheated clean water to meet daily water needs for washing vegetables, cooking, etc. Among them, a control switch 700 can be set on the first water outlet branch 14a and the second water outlet branch 14b respectively. The control switch 700 can be an electrical switch or a switch valve lamp, so as to control the on and off of the first water outlet branch 14a or the second water outlet branch 14b.

[0059] See also Figure 1 In one embodiment, the water purifier water system 10 also includes an exhaust path 15, one end of which is connected to the water storage chamber 210, and the other end is connected to the external atmosphere. Specifically, the water purifier water system 10 also includes an exhaust path 15, one end of which is connected to the water storage chamber 210, and the other end is connected to the external atmosphere. The exhaust path 15 generally uses a plastic pipe with a thin diameter, such as a PE (polyethylene) pipe. In the process of heating water in the hot tank 200, some gases such as oxygen and carbon dioxide will be generated in the water. The function of the exhaust path 15 is to discharge these gases to prevent the gas from accumulating in the hot tank 200 and affecting the storage and transportation of hot water. At the same time, the exhaust path 15 can also balance the air pressure inside and outside the hot tank 200 to prevent the hot tank 200 from being damaged due to pressure changes. For example, when the water temperature in the hot tank 200 rises, the gas expands, and the gas is discharged through the exhaust path 15, which can keep the pressure in the hot tank 200 stable.

[0060] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A water purifier water system, characterized in that: include: A water inlet waterway, wherein a filter module is provided on the water inlet waterway; A hot water circuit, wherein a hot water tank and a booster diaphragm pump are provided on the hot water circuit, wherein the booster diaphragm pump is located downstream of the hot water tank, and the hot water tank has a water storage chamber, wherein the water storage chamber is used to store heated hot water; one end of the hot water circuit is connected to the water outlet side of the filter module, and the other end is used to discharge hot water; as well as A first return water channel, one end of which is connected to the hot water channel, and the other end of which is communicated with the water storage chamber.

2. The water purifier waterway system according to claim 1, characterized in that: The water inlet waterway is also provided with a water inlet solenoid valve and a booster pump, the filtration module includes a composite filter element and a reverse osmosis filter element, the composite filter element includes a pre-filter element and a post-filter element, the water flows through the water inlet solenoid valve, the pre-filter element, the booster pump, the reverse osmosis filter element and the post-filter element in sequence, and the water outlet side of the post-filter element and the water inlet side of the hot tank are connected through the hot water waterway.

3. The water purifier waterway system according to claim 2, characterized in that: The water purifier water system also includes a second return water channel, one end of which is connected to the water outlet side of the post-filter element, and the other end of which is connected to the water outlet side of the pre-filter element.

4. The water purifier waterway system according to claim 1, characterized in that: The hot tank is provided with a water level detection assembly, which includes a low water level detection component, a middle water level detection component and a high water level detection component. The water level monitoring component is used to detect the water level in the water storage cavity.

5. The water purifier waterway system according to claim 1, characterized in that: The connection point between the first reflux waterway and the hot water waterway is located downstream of the booster diaphragm pump.

6. The water purifier water system according to claim 5, characterized in that: A reflux port is provided on the top of the hot tank, and the first reflux water path is connected with the water storage cavity through the reflux port.

7. The water purifier waterway system according to claim 6, characterized in that: A connecting column is provided on the top of the hot tank, the reflux port is formed on the connecting column, and the connecting column is protruded from the upper surface of the hot tank.

8. The water purifier waterway system according to claim 7, characterized in that: The connecting column forms a reflux channel, one end of the reflux channel is the reflux port, and the other end is connected to the water storage cavity inside the hot tank.

9. The water purifier waterway system according to claim 8, characterized in that: The reflux channel comprises a first channel and a second channel which are connected to each other, wherein the first channel is arranged close to one end of the reflux port; and the diameter of the first channel is smaller than the diameter of the second channel.

10. The water purifier waterway system according to any one of claims 1 to 6, characterized in that: The booster diaphragm pump is arranged at the bottom of the hot tank, or the booster diaphragm pump is arranged at one side of the hot tank.

11. The water purifier waterway system according to any one of claims 1 to 6, characterized in that: The water purifier water system also includes a conventional water outlet waterway, one end of which is connected to the water outlet side of the filter module, and the other end is used to discharge water; wherein, the conventional water outlet waterway includes a first water outlet branch and a second water outlet branch, and a pipeline machine is provided on the first water outlet branch.

12. The water purifier water system according to any one of claims 1 to 6, characterized in that: The water purifier water system also includes an exhaust path, one end of which is connected to the water storage chamber, and the other end of which is connected to the external atmosphere.

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