Water purification equipment and control structure thereof

Abstract

The utility model relates to water purification equipment and a control structure thereof. The control structure comprises a main control module and a plurality of pulse regulating valves, the pulse regulating valves are electrically connected to the main control module and used for being arranged on the corresponding branch waterways, the water inlet ends of the branch waterways are connected with the water outlet end of the convergence branch, the water outlet ends of the branch waterways are connected with the water inlet end of the convergence branch, and ultrafiltration water can flow in the convergence branch. The ultrafiltration water and the pure water can be mixed in the converging water path, and the main control module is used for adjusting the opening degree of the pulse adjusting valve so as to control the water amount of the ultrafiltration water used for being mixed with the pure water. The control structure is beneficial to improving the effect of the water purification equipment for controlling the amount of the ultrafiltration water mixed with the pure water, so that the water purification equipment can output drinking water with better taste.

Description

Technical Field

[0001] The present application relates to the field of water purification technology, and in particular to a water purification device and a control structure thereof. Background Art

[0002] A water purifier is also called a water purifier or water purifier. It is a water treatment device that deeply filters and purifies water according to the requirements of water use. Water purifiers are not only suitable for areas with serious tap water pollution, but also for household kitchen water purification. They can filter impurities and residual chlorine in tap water and improve the taste of water.

[0003] In the related art, a water purifier generally includes an ultrafiltration filter element and a reverse osmosis filter element. Ultrafiltration water can be obtained after treatment with the ultrafiltration filter element, and pure water can be obtained after treatment with the reverse osmosis filter element. By mixing the ultrafiltration water and pure water and then outputting them, drinking water with a better taste can be obtained. However, the existing water purifier has a poor effect in controlling the amount of ultrafiltration water used to mix with pure water, resulting in a poor taste of the drinking water output by the water purifier. Utility Model Content

[0004] Based on this, it is necessary to provide a water purification device and its control structure that can improve the technical problem that the water purifier in the related technology is poor in controlling the amount of ultrafiltered water used to mix with pure water, resulting in poor taste of drinking water output by the water purifier.

[0005] According to a first aspect of the present application, an embodiment of the present application provides a control structure of a water purification device, including:

[0006] Main control module; and

[0007] Multiple pulse regulating valves are electrically connected to the main control module and are used to be set on corresponding branch waterways. The water inlet end of the branch waterway is connected to the water outlet end of the confluent branch, and the water outlet end of the branch waterway is connected to the water inlet end of the confluent waterway. Ultrafiltered water can flow in the confluent branch, and ultrafiltered water and pure water can be mixed in the confluent waterway. The main control module is used to adjust the opening and closing degree of the pulse regulating valve to control the amount of ultrafiltered water used to mix with pure water.

[0008] In one embodiment, the control structure includes a first TDS detection component and a second TDS detection component, both of which are electrically connected to the main control module. The first TDS detection component is arranged in the confluent branch and is used to detect the initial TDS value of the ultrafiltration water. The second TDS detection component is arranged in the confluent water channel and is used to detect the mixed water TDS value of the mixed water. The main control module can control the opening and closing degree of the pulse regulating valve according to the difference between the initial TDS value and the mixed water TDS value.

[0009] In one embodiment, the control structure includes a first pressure sensor and a second pressure sensor, both of which are electrically connected to the main control module. The first pressure sensor is used to be arranged upstream of the pretreatment filter element and is used to measure a first pressure value of the water path. The second pressure sensor is used to be arranged downstream of the pretreatment filter element and is used to measure a second pressure value of the water path. The main control module can determine whether the pretreatment filter element is in a blocked state based on the difference between the first pressure value and the second pressure value.

[0010] In one embodiment, the control structure includes a third pressure sensor electrically connected to the main control module, the third pressure sensor is used to be arranged downstream of the ultrafiltration filter element and to measure a third pressure value of the water path, and the second pressure sensor is located upstream of the ultrafiltration filter element. The main control module can determine whether the ultrafiltration filter element is in a blocked state based on the difference between the second pressure value and the third pressure value.

[0011] In one embodiment, the control structure includes a flushing solenoid valve electrically connected to the main control module, and the flushing solenoid valve is used to be arranged in a backwashing water circuit, and the backwashing water circuit is connected to the wastewater end of the ultrafiltration filter element. The main control module can control the flushing solenoid valve to open when the ultrafiltration filter element is in a blocked state to backwash the ultrafiltration filter element.

[0012] In one embodiment, the control structure includes a fourth pressure sensor electrically connected to the main control module, the fourth pressure sensor is used to be arranged downstream of the reverse osmosis filter element and to measure a fourth pressure value of the water path, and the third pressure sensor is located upstream of the reverse osmosis filter element. The main control module can determine whether the reverse osmosis filter element is in a blocked state based on the difference between the third pressure value and the fourth pressure value.

[0013] In one embodiment, the control structure includes a first solenoid valve and a second solenoid valve, both of which are electrically connected to the main control module. The first solenoid valve is used to be set in a first water outlet waterway, and the first water outlet waterway is used to directly lead out ultrafiltration water. The second solenoid valve is used to be set in a second water outlet waterway, and the second water outlet waterway is used to introduce ultrafiltration water into a reverse osmosis filter element for reverse osmosis treatment. The main control module can control the operating status of the first solenoid valve and the second solenoid valve respectively to make the first water outlet waterway or the second water outlet waterway in a conducting state.

[0014] In one embodiment, the control structure includes a water level detection component and a water pump, both of which are electrically connected to the main control module. The water level detection component is used to be arranged in a pressure barrel and to detect the water level of the pressure barrel. The pressure barrel is connected to the water outlet end of the merged water channel. The water pump is arranged downstream of the pressure barrel. The main control module can control the operating state of the water pump according to the detection result of the water level detection component.

[0015] In one embodiment, the control structure includes a first flow meter and a second flow meter, both of which are electrically connected to the main control module. The first flow meter is arranged in the confluent water channel and is used to detect the amount of mixed water. The second flow meter is arranged downstream of the water pump and is used to detect the water output of the water purification equipment.

[0016] According to the second aspect of the present application, an embodiment of the present application provides a water purification device, including a branch waterway, a confluent branch, a confluent waterway, a pretreatment filter element, an ultrafiltration filter element, a reverse osmosis filter element, a backwash waterway, a first water outlet waterway, a second water outlet waterway, a pressure barrel and a control structure of the water purification device in any of the above embodiments, the pretreatment filter element, the ultrafiltration filter element and the reverse osmosis filter element are arranged in sequence along the flow direction of water, the water inlet ends of the first water outlet waterway, the second water outlet waterway and the confluent branch are all connected to the water outlet end of the ultrafiltration filter element, the water inlet end of the backwash waterway is connected to the wastewater end of the ultrafiltration filter element, the water outlet end of the second water outlet waterway is connected to the water inlet end of the reverse osmosis filter element, the water outlet end of the reverse osmosis filter element is connected to the water inlet end of the confluent waterway, the water inlet end of the branch waterway is connected to the water outlet end of the confluent branch, the water outlet end of the branch waterway is connected to the water inlet end of the confluent waterway, and the water outlet end of the confluent waterway is connected to the water inlet end of the pressure barrel.

[0017] Through the above technical scheme, the branch waterways can connect the merging branches and the merging waterways, and multiple pulse regulating valves are respectively arranged in the corresponding branch waterways. The main control module can control the amount of ultrafiltered water for mixing with pure water in each branch waterway by adjusting the opening and closing degree of each pulse regulating valve, and then can control the total amount of ultrafiltered water for mixing with pure water, which is beneficial to improving the effect of the water purification equipment in controlling the amount of ultrafiltered water for mixing with pure water, thereby helping the water purification equipment to output drinking water with better taste. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] FIG1 is a schematic structural diagram of a water purification device in an embodiment of the present application without a front door;

[0019] FIG2 is a schematic diagram of the structure of a water purification device in an embodiment of the present application without a back door;

[0020] FIG3 is a partial three-dimensional schematic diagram of a water purification device in an embodiment of the present application;

[0021] FIG4 is a perspective schematic diagram of a water purification device in an embodiment of the present application;

[0022] FIG. 5 is a flow chart of a water channel structure in one embodiment of the present application.

[0023] Description of reference numerals: 10-water purification equipment; 20-ultrafiltration module; 21-ultrafiltration filter element; 22-pretreatment filter element; 30-reverse osmosis module; 31-reverse osmosis filter element; 32-driving member; 100-first housing; 110-partitioning assembly; 111-first partition plate; 1-load-bearing plate; 112-second partition plate; 2-hanging plate; 4-first area; 5-second area; 6-third area; 113-base; 114-bottom plate; 115-top plate; 1 16-side panel; 117-front door; 118-rear door; 119-reinforcement rib; 120-first gap; 121-first roller; 122-mounting plate; 123-pipe hole; 130-panel structure; 131-panel frame; 9-main control module; 140-display screen; 147-display window; 148-screen hole; 310-water storage module; 311-pressure barrel; 400-water channel structure; 401-water inlet water channel; 402-first water outlet water channel ; 403-first wastewater waterway; 404-second outlet waterway; 405-merging waterway; 406-second wastewater waterway; 407-merging branch; 408-branching waterway; 409-backwashing waterway; 410-spare branch; 411-spare waterway; 412-pulse regulating valve; 413-first TDS detection element; 414-second TDS detection element; 415-first pressure sensor; 416-second pressure sensor; 417-third pressure sensor sensor; 418-the fourth pressure sensor; 419-a water pump; 420-the first flow meter; 421-a flushing solenoid valve; 422-the first water inlet solenoid valve; 423-the second water inlet solenoid valve; 424-a wastewater solenoid valve; 425-the first manual ball valve; 426-the second manual ball valve; 427-the third manual ball valve; 428-the third solenoid valve; 429-a one-way valve; 430-a pressure reducing valve; Z-the first direction; X-the second direction; Y-the third direction. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0025] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0026] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0027] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0028] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0029] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may also be a centered element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a centered element at the same time. If any, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in this application are for illustrative purposes only and are not intended to be the only implementation method. "Inside and outside" refer to the inside and outside of the contour of the corresponding component. "Upstream" and "downstream" are defined for the flow direction of water in the water purification equipment, and "up" and "down" are defined for the height direction of the water purification equipment.

[0030] 1 to 5 , the present application provides a water purification device 10 , which is used to filter tap water and remove harmful substances in tap water, thereby ensuring the safety of drinking water. The water purification device 10 can be applied to various places with water purification needs.

[0031] In some embodiments, referring to Figures 1 to 3 and 5, the water purification equipment 10 includes a filtration module for treating water, the filtration module includes an ultrafiltration module 20, the ultrafiltration module 20 includes an ultrafiltration filter element 21, and the ultrafiltration membrane in the ultrafiltration filter element 21 can efficiently filter the raw water (water just entering the water purification equipment 10) to obtain ultrafiltered water. After being processed by the ultrafiltration filter element 21, most of the mud, rust, suspended matter and colloids in the raw water can be filtered out, thereby ensuring the safety of the water quality.

[0032] In some embodiments, referring to FIGS. 1 to 3 and 5, the ultrafiltration module 20 may further include a pretreatment filter element 22. The pretreatment filter element 22 may be disposed upstream of the ultrafiltration filter element 21 along the flow direction of the raw water. The pretreatment filter element 22 may pretreatment the raw water, including but not limited to removing coarse particle impurities, silt impurities, organic pollutants, etc. in the raw water. The water filtered by the pretreatment filter element 22 flows into the ultrafiltration filter element 21 for filtration, which can reduce the filtration pressure of the ultrafiltration filter element 21 and is conducive to increasing the service life of the ultrafiltration filter element 21.

[0033] The present application does not limit the specific selection of the pretreatment filter element 22. In some embodiments, the pretreatment filter element 22 can be a composite filter element, which has the functions of a PP cotton filter element (Polypropylene, polypropylene spray-melt filter element) and a GAC ​​filter element (Granular Activated Carbon Filter, granular activated carbon filter element), and can achieve pretreatment of raw water.

[0034] In some embodiments, referring to Figures 1 to 3 and 5, the filtration module also includes a reverse osmosis module 30, and the reverse osmosis module 30 includes a reverse osmosis filter element 31. Along the direction of water flow, the reverse osmosis filter element 31 can be located downstream of the ultrafiltration filter element 21. The ultrafiltration water treated by the ultrafiltration filter element 21 can flow into the reverse osmosis filter element 31 for reverse osmosis treatment to obtain pure water.

[0035] In some embodiments, referring to FIG. 2 , FIG. 3 and FIG. 5 , the reverse osmosis module 30 may further include a driving member 32 connected to the reverse osmosis filter element 31 , and the driving member 32 is used to increase the pressure of water flowing into the reverse osmosis filter element 31 .

[0036] The present application does not limit the specific selection of the driving component 32. In some embodiments, the driving component 32 may be a motor, a booster pump, etc.

[0037] The present application does not specifically limit the number of filter elements and driving members 32 of the water purification equipment 10. In some embodiments, referring to Figures 1 to 3 and 5, the number of ultrafiltration filter elements 21 and pretreatment filter elements 22 can both be one, and the pretreatment filter element 22 can be a composite filter element. Ultrafiltration water can be obtained after treatment with the composite filter element and the ultrafiltration filter element 21; the number of reverse osmosis filter elements 31 can be two, which can speed up the efficiency of reverse osmosis treatment of the water purification equipment 10. The number of driving members 32 can also be two, and the two driving members 32 are respectively arranged corresponding to the two reverse osmosis filter elements 31 to achieve pressurization of water flowing into the corresponding reverse osmosis filter elements 31.

[0038] In some embodiments, the water purification device 10 further includes a water storage module 310, and the water storage module 310 includes a pressure barrel 311 connected to the ultrafiltration module 20 and / or the reverse osmosis module 30, and the pressure barrel 311 is used to store water. In one embodiment of the present application, referring to FIG. 5, the pressure barrel 311 can be connected to the reverse osmosis module 30, and the ultrafiltration water obtained by the ultrafiltration module 20 can be directly drawn out.

[0039] In some embodiments, referring to FIG. 1 to FIG. 3 , the ultrafiltration module 20 and the reverse osmosis module 30 of the water purification device 10 may be integrated into the same device, and the water storage module 310 may be a separate device.

[0040] In some embodiments, referring to Figures 1 to 4, the first direction Z, the second direction X and the third direction Y can be perpendicular to each other, wherein the first direction Z can be the height direction of the water purification equipment 10, the second direction X can be the length direction of the water purification equipment 10, the third direction Y can be the width direction of the water purification equipment 10, and the first plane can be a horizontal plane.

[0041] In some embodiments, referring to FIG5 , the water purification device 10 may further include a water channel structure 400, which is used to connect the water storage module 310, the ultrafiltration module 20 and the reverse osmosis module 30, so as to realize the water purification process of the water purification device 10. Among them, a plurality of valves may be provided in the water channel structure 400, and the setting of the plurality of valves will be specifically described in the part of the water channel structure 400 below, and will not be described in detail here.

[0042] In some embodiments, referring to FIGS. 1 to 3 , the water purification device 10 may include a first housing 100 and a partition assembly 110 disposed in the first housing 100 , the partition assembly 110 includes a first partition plate 111 and a second partition plate 112 disposed obliquely, the first partition plate 111 may be a load-bearing plate 1, the second partition plate 112 may be a hanging plate 2, the hanging plate 2 and the load-bearing plate 1 may be disposed obliquely to each other, so as to enclose three areas together with the inner wall of the first housing 100 , namely, a first area 4 for accommodating an ultrafiltration module 20, a second area 5 for accommodating a reverse osmosis module 30, and a third area 6. Among them, the pressure barrel 311 of the water storage module 310 may be connected to the first housing 100 through a hose.

[0043] In some embodiments, the load-bearing plate 1 and the hanging plate 2 may be provided with a plurality of mounting holes, which may be used to mount various valves and / or pipes in the waterway structure 400, for example, the mounting holes may be used to mount water inlet valves, waste water valves, etc. Referring to FIG. 2 , the mounting holes may also be connected with mounting plates 122, which are used to mount various valves and / or pipes, and which may provide mounting locations for the valves and / or pipes and support the valves and / or pipes.

[0044] In some embodiments, the pretreatment filter element 22 and the ultrafiltration filter element 21 can both be detachably connected to the load-bearing plate 1, and along the extension direction of the pretreatment filter element 22 and the ultrafiltration filter element 21, a first gap 120 can exist between the end of the pretreatment filter element 22 and the ultrafiltration filter element 21 away from the load-bearing plate 1 and the first shell 100, thereby facilitating the assembly and disassembly of the pretreatment filter element 22 and the ultrafiltration filter element 21.

[0045] In some embodiments, referring to FIGS. 1 to 4 , the bottom of the first shell 100 may be provided with a first roller 121 for rolling contact with the ground, so that the first shell 100 can move relative to the ground, making it easier for users to transfer the device integrated with the ultrafiltration module 20 and the reverse osmosis module 30.

[0046] In some embodiments, the reverse osmosis filter element 31 is detachably connected to the hanging plate 2, the driving member 32 is detachably connected to the bearing plate 1, the reverse osmosis filter element 31 can be arranged in the second area 5, and the driving member 32 can be arranged in the third area 6. Since the waterway structure 400 includes a plurality of valves and pipes, in order to facilitate the replacement and maintenance of the reverse osmosis filter element 31, most of the valves and pipes of the waterway structure 400 can be concentrated in the third area 6, thereby avoiding the obstruction of the reverse osmosis filter element 31 by the valves and pipes to a certain extent, and facilitating the improvement of the regularity inside the water purification device 10.

[0047] In some embodiments, the hanging plate 2 and the bearing plate 1 may be respectively provided with a plurality of pipe holes 123 for pipes to pass through. The present application does not specifically limit the number of pipe holes 123, and the number may be improved accordingly according to the specific circumstances of the pipe layout. In one embodiment of the present application, referring to FIG. 3 , the number of pipe holes 123 on the hanging plate 2 may be the same as the number of the reverse osmosis filter element 31, and the two are arranged in a one-to-one correspondence. The pipe connected to the water outlet end of the ultrafiltration filter element 21 can pass through the pipe holes 123 on the bearing plate 1 and the hanging plate 2, and be connected to the reverse osmosis filter element 31, so that the ultrafiltration water can be transported to the reverse osmosis filter element 31 for reverse osmosis treatment.

[0048] In some embodiments, referring to FIGS. 1 to 3 , the first housing 100 of the water purification device 10 may include a bottom plate 114 and a base 113 that are connected to each other, and the base 113 and the first roller 121 are respectively disposed on both sides of the bottom plate 114 .

[0049] In some embodiments, referring to Figures 1 to 4, the first shell 100 of the water purification equipment 10 may also include a top plate 115 and two side plates 116, the top plate 115 is arranged opposite to the bottom plate 114, the two side plates 116 are both extended along the first direction Z, the two side plates 116 are spaced apart in the second direction X and are located between the top plate 115 and the bottom plate 114, the two ends of the two side plates 116 in the first direction Z are respectively connected to the top plate 115 and the bottom plate 114, and the base 113 is extended along the second direction X and connected to the two side plates 116.

[0050] In some embodiments, referring to Figures 1 to 4, the first shell 100 of the water purification equipment 10 may also include a front door 117 and a rear door 118 spaced apart in the third direction Y, one side of the front door 117 and the rear door 118 are respectively rotatably connected to the side plate 116, and the front door 117 and the rear door 118 are both in a closed state. When the front door 117 is in a closed state, the two ends of the front door 117 in the first direction Z are respectively abutted against the top plate 115 and the bottom plate 114, and when the rear door 118 is in a closed state, the two ends of the rear door 118 in the first direction Z are respectively abutted against the top plate 115 and the base 113.

[0051] In some embodiments, referring to FIG. 3 , the first shell 100 may further include a plurality of reinforcing ribs 119 , which may extend along the second direction X and / or the third direction Y. The reinforcing ribs 119 may be connected to the side panels 116 , the load-bearing plates 1 , etc., thereby improving the structural strength of the first shell 100 and, to a certain extent, preventing the first shell 100 from being concave after a collision.

[0052] In the present application, the water purification device further includes a control structure, and the control structure may include a main control module 9. The present application does not limit the specific structure of the main control module 9. In some embodiments, the main control module 9 may include a first circuit board.

[0053] In some embodiments, referring to FIGS. 1 to 3 , the water purification device 10 may include a panel structure 130 , the panel structure 130 may include a panel frame 131 , and the first circuit board may be disposed in the panel frame 131 .

[0054] In the above embodiment, the main control module 9 may further include a power supply electrically connected to the first circuit board, and the power supply may also be disposed in the panel frame 131. The first circuit board may be electrically connected to the multiple valves of the waterway structure 400 and the drive member 32 of the reverse osmosis module 30, and control the operation states of the multiple valves respectively, for example, control the opening or closing of the multiple valves, or control the opening and closing degree of the valves, and the first circuit board may also control the working efficiency of the drive member 32. The power supply may be electrically connected to the drive member 32 to provide energy for the operation of the drive member 32.

[0055] In some embodiments, referring to FIG. 4 , the panel structure 130 may further include a display screen 140 disposed on the panel frame 131 , the display screen 140 being electrically connected to the first circuit board and used to display data and information of the operation of the water purification device 10 , for example, the display screen 140 may display water pressure, flow rate, etc. In order to facilitate the user to observe the data and information of the operation of the water purification device 10 , the display screen 140 may be disposed on the outside of the panel frame 131 .

[0056] In some embodiments, referring to FIG. 4 , the front door 117 may be provided with a screen-through hole 148 , the position of which corresponds to the position of the display screen 140 , so that the user can view data and other information on the display screen 140 .

[0057] In the above embodiment, referring to FIG. 4 , the front door 117 may be provided with a display window 147 , and the display window 147 may be formed as a transparent plate, and the transparent plate may be embedded in the screen hole 148 , so as to facilitate the user to observe the data on the display screen 140 and to protect the display screen 140 .

[0058] 5 , the water channel structure 400 of the water purification device 10 will be described below, wherein “JS” refers to the water inlet, “CS” refers to the water outlet, and “FS” refers to the wastewater end.

[0059] In some embodiments, the waterway structure 400 includes an inlet waterway 401, a first outlet waterway 402, and a first wastewater waterway 403 connected to the ultrafiltration module 20. The inlet end of the inlet waterway 401 is connected to the inlet pipe, the outlet end of the inlet waterway 401 is connected to the inlet end of the ultrafiltration module 20, the inlet end of the first outlet waterway 402 is connected to the outlet end of the ultrafiltration module 20, the outlet end of the first outlet waterway 402 can be connected to the water storage module 310, the inlet end of the first wastewater waterway 403 is connected to the wastewater end of the ultrafiltration module 20, and the outlet end of the first wastewater waterway 403 is used to discharge wastewater. Raw water can flow from the inlet waterway 401 to the ultrafiltration module 20. After the ultrafiltration module 20 performs ultrafiltration treatment on the raw water, the wastewater can be discharged from the first wastewater waterway 403, and the ultrafiltered water obtained by filtration can be drawn out through the first outlet waterway 402.

[0060] For the embodiment in which the ultrafiltration module 20 includes an ultrafiltration filter element 21, referring to Figure 5, the inlet waterway 401, the first outlet waterway 402 and the first wastewater waterway 403 are respectively connected to the ultrafiltration filter element 21; for the embodiment in which the ultrafiltration module 20 includes an ultrafiltration filter element 21 and a pretreatment filter element 22, along the flow direction of the raw water, the pretreatment filter element 22 is arranged upstream of the ultrafiltration filter element 21, and the water pretreated by the pretreatment filter element 22 flows to the ultrafiltration filter element 21, which can reduce the filtration pressure of the ultrafiltration filter element 21.

[0061] In some embodiments, referring to FIG. 5 , the waterway structure 400 includes a second outlet waterway 404, a confluent waterway 405, and a second wastewater waterway 406. The water inlet of the second outlet waterway 404 is connected to the water outlet of the ultrafiltration filter element 21, the water outlet of the second outlet waterway 404 is connected to the water inlet of the reverse osmosis module 30, the water inlet of the confluent waterway 405 is connected to the water outlet of the reverse osmosis module 30, the water outlet of the confluent waterway 405 is connected to the water inlet of the water storage module 310, the water inlet of the second wastewater waterway 406 is connected to the wastewater end of the reverse osmosis module 30, and the water outlet of the second wastewater waterway 406 is used to discharge wastewater. The ultrafiltration water obtained after being treated by the ultrafiltration filter element 21 can flow to the reverse osmosis module 30 for reverse osmosis treatment, thereby obtaining pure water.

[0062] In the above embodiment, referring to FIG. 5, since the water inlet ends of the first outlet waterway 402 and the second outlet waterway 404 can be respectively connected to the water outlet end of the same ultrafiltration filter element 21, the first outlet waterway 402 can directly lead out the ultrafiltration water, and the second outlet waterway 404 can lead the ultrafiltration water to the reverse osmosis module 30 for reverse osmosis treatment. The user can perform different treatments on the raw water by connecting different outlet waterways. The waterway structure 400 includes both the ultrafiltration module 20 and the combination of the ultrafiltration module 20 and the reverse osmosis module 30, which can realize modular design and is conducive to improving the versatility of the water purification device 10.

[0063] In some embodiments, the control assembly may include a solenoid valve assembly, which may include a first solenoid valve (not shown) and a second solenoid valve (not shown), the first solenoid valve may be provided in the first water outlet waterway 402, the second solenoid valve may be provided in the second water outlet waterway 404, and the first circuit board may control the operation state of the first solenoid valve and the second solenoid valve to make the first water outlet waterway 402 or the second water outlet waterway 404 in a conducting state. When the first water outlet waterway 402 is in a conducting state and the second water outlet waterway 404 is in a cut-off state, the water storage module 310 may store ultrafiltration water; when the second water outlet waterway 404 is in a conducting state and the first water outlet waterway 402 is in a cut-off state, the water storage module 310 may store pure water.

[0064] In the above embodiment, the first solenoid valve and the second solenoid valve may also be replaced by mechanical valves, thereby reducing the manufacturing cost and use cost of the water purification device 10.

[0065] For the embodiment in which the reverse osmosis module 30 includes a reverse osmosis filter element 31 and a driving member 32, referring to Figure 5, the driving member 32 can be arranged upstream of the reverse osmosis filter element 31, and the ultrafiltration water in the second outlet waterway 404 can be transported to the reverse osmosis filter element 31 for filtration after being pressurized by the driving member 32. The filtered pure water flows into the confluent waterway 405, and the filtered wastewater flows to the second wastewater waterway 406.

[0066] In some embodiments, referring to FIG. 5 , the waterway structure 400 may further include a confluence branch 407, the water inlet end of the confluence branch 407 is connected to the water outlet end of the ultrafiltration filter element 21, and the water outlet end of the confluence branch 407 is connected to the water inlet end of the confluence waterway 405, so that the ultrafiltration water and the pure water can be mixed in the confluence waterway 405. Since the ultrafiltration membrane of the ultrafiltration filter element 21 can retain most of the minerals in the water during filtration, but the reverse osmosis membrane of the reverse osmosis filter element 31 can easily filter out the minerals and trace elements in the water that are beneficial to the human body, therefore, by mixing the ultrafiltration water and the pure water, mixed water with certain soluble mineral elements can be obtained, and drinking water with better taste can be obtained. In one embodiment of the present application, the pressure barrel 311 of the water storage module 310 can be used to store mixed water with better taste.

[0067] In the above embodiment, referring to FIG. 5 , the water inlet end of the merging branch 407 may be disposed between the driving member 32 and the reverse osmosis filter element 31 , that is, the driving member 32 may also pressurize the ultrafiltration water flowing toward the merging branch 407 .

[0068] In some embodiments, referring to FIG. 5 , the number of the driving member 32 and the reverse osmosis filter element 31 can be multiple, and correspondingly, the number of the second outlet waterway 404, the confluence branch 407 and the second wastewater waterway 406 can also be multiple, and the water inlet ends of the multiple second outlet waterways 404 can be integrated at one end, so as to facilitate the communication between the multiple second outlet waterways 404 and the ultrafiltration filter element 21. The provision of multiple second outlet waterways 404 enables the ultrafiltration water to undergo multiple parallel reverse osmosis filtrations, which is conducive to improving the speed of water treatment and increasing the flow rate of water treatment.

[0069] In the above embodiment, referring to Figure 5, the water outlet ends of multiple converging branches 407 can be first integrated into the same port, and the port is then connected to the converging waterway 405; similarly, the water outlet ends of multiple second water outlet waterways 404 can be first integrated into the same port, and the port is then connected to the converging waterway 405, so as to facilitate the mixing of ultrafiltration water and pure water in the converging waterway 405; the water inlet ends of multiple second wastewater waterways 406 are connected to the corresponding reverse osmosis filter elements 31, and their water outlet ends can also be first integrated into the same port, and then discharged uniformly from the port.

[0070] In some embodiments, referring to FIG. 5 , when the outlet ends of multiple converging branches 407 are integrated into the same port, multiple branch waterways 408 in parallel may be provided between the port and the converging waterway 405, and each branch waterway 408 is provided with a pulse regulating valve 412. By controlling the opening and closing degree of the pulse regulating valve 412, the amount of ultrafiltration water used for mixing can be controlled. The provision of the parallel branch waterways 408 is conducive to increasing the flow rate of ultrafiltration water. In addition, a pressure reducing valve 430 may be provided between the port and the parallel branch waterway 408, that is, multiple ultrafiltration waters are first mixed and then the water pressure is adjusted to stabilize the water flow.

[0071] In the above embodiment, referring to FIG. 5 , the number of branch waterways 408 may be two. Each converging branch 407 may be provided with a one-way valve 429 to allow water to flow in one direction. Specifically, the one-way valve 429 may be located upstream of the pressure reducing valve 430. The pressure reducing valve 430 and the pulse regulating valve 412 may both be electrically connected to the first circuit board, and the first circuit board may control the operating states of the pressure reducing valve 430 and the pulse regulating valve 412, thereby facilitating the improvement of the automation of the water purification device 10.

[0072] In some embodiments, referring to FIG. 5 , when the outlet ends of multiple second water outlet waterways 404 are integrated into the same port, a pressure reducing valve 430 may be provided between the port and the confluent waterway 405, that is, multiple pure waters are first mixed and then the water pressure is adjusted to stabilize the water flow. In addition, each second water outlet waterway 404 may be provided with a one-way valve 429 to allow the water flow to flow in one direction, and specifically, the one-way valve 429 may be located between the reverse osmosis filter element 31 and the pressure reducing valve 430.

[0073] In some embodiments, referring to Figure 5, the water channel structure 400 may also include an electronic component electrically connected to the first circuit board. The electronic component may include a detection component, and the detection component is used to detect the TDS (Total Dissolved Solids) value, pressure value, flow value, etc. of the water flow. The first circuit board can obtain detection information of the detection component and display the detection information on the display screen 140.

[0074] In some embodiments, the electronic components may also include multiple solenoid valves disposed in the water channel structure 400, and the multiple solenoid valves may be electrically connected to the first circuit board. The first circuit board may control the operating status of the corresponding solenoid valves, including but not limited to opening and closing the solenoid valves.

[0075] In some embodiments, referring to Fig. 5, the detection assembly includes a first TDS detection member 413 and a second TDS detection member 414. The first TDS detection member 413 is provided in the second outlet waterway 404 and is used to detect the initial TDS value of the ultrafiltration water in real time. The second TDS detection member 414 is provided in the confluent waterway 405 and is used to detect the mixed TDS value of the mixed water in real time. By comparing the initial TDS value and the mixed TDS value, the user can adjust the amount of ultrafiltration water and pure water used for mixing according to the value.

[0076] In the above embodiment, the first TDS detection member 413 and the second TDS detection member 414 may be TDS probes, and the first TDS detection member 413 may also be provided at the confluence branch 407 for the ultrafiltration water to flow through. For the embodiment in which the branch waterway 408 mentioned above is provided with a pulse regulating valve 412, the user may adjust the opening and closing degree of the pulse regulating valve 412 according to the initial TDS value and the mixed TDS value, so as to adjust the amount of ultrafiltration water used for mixing, and realize the adjustment of the mixed TDS value.

[0077] In some embodiments, the detection component includes multiple pressure detection components. Pressure detection components can be provided upstream and downstream of the filter element along the flow direction of the water flow. The pressure detection components are used to measure the water pressure in real time. By comparing the pressure difference of the upstream and downstream water flows of the same filter element, the blockage condition of the filter element can be determined, thereby promptly reminding the user to clean or replace the corresponding filter element.

[0078] The present application does not limit the specific selection of the pressure detection element. In some embodiments, the pressure detection element may be a pressure sensor.

[0079] In one embodiment of the present application, referring to FIG5 , a first pressure sensor 415 may be provided upstream of the pretreatment filter element 22, and the first pressure sensor 415 measures a first pressure value in real time. The value of the first pressure value can be used by the user to determine whether the water purification device 10 is short of water. If the value of the first pressure value is less than a preset value, the water purification device 10 is in a state of water shortage; a second pressure sensor 416 may be provided between the pretreatment filter element 22 and the ultrafiltration filter element 21, and the second pressure sensor 416 measures a second pressure value in real time. By comparing the first pressure value and the second pressure value and calculating the difference between the two, when the difference is greater than a preset value, the pretreatment filter element 22 is in a state of water shortage. 22 is in a blocked state; a third pressure sensor 417 may be provided between the ultrafiltration filter element 21 and the reverse osmosis filter element 31, and the third pressure sensor 417 measures a third pressure value in real time, by comparing the second pressure value with the third pressure value and calculating the difference between the two, when the difference is greater than a preset value, the ultrafiltration filter element 21 is in a blocked state; a fourth pressure sensor 418 may be provided between the reverse osmosis filter element 31 and the pressure barrel 311, and the fourth pressure sensor 418 measures a fourth pressure value in real time, by comparing the third pressure value with the fourth pressure value and calculating the difference between the two, when the difference is greater than a preset value, the reverse osmosis filter element 31 is in a blocked state.

[0080] In some embodiments, referring to FIG. 5 , the detection assembly may further include a first flow meter 420 . The first flow meter 420 may be disposed in the confluent waterway 405 to measure the flow rate of the mixed water.

[0081] In some embodiments, referring to FIG. 5 , the water storage module 310 may further include a water pump 419 connected to the pressure barrel 311. The water pump 419 may provide energy for the user to pump water out of the pressure barrel 311. A plurality of water level probes may be provided in the pressure barrel 311. The plurality of water level probes are spaced apart along the height direction of the pressure barrel 311. The water level probes and the water pump 419 may both be electrically connected to the first circuit board. The first circuit board may control the operating state of the water pump 419 according to the water level detected by the water level probe, for example, reducing or increasing the operating power of the water pump 419.

[0082] In some embodiments, the water storage module 310 may also include a second flow meter (not shown) disposed downstream of the water pump 419. The second flow meter may be electrically connected to the first circuit board. The second flow meter is used to detect whether the water flow decreases when the operating power of the water pump 419 decreases, and is used to detect whether the water flow increases when the operating power of the water pump 419 increases.

[0083] In the above embodiment, referring to FIG. 5 , the confluent waterway 405 may also be provided with a one-way valve 429 to allow the water to flow in one direction. Along the flow direction of the water, the one-way valve 429 may be located downstream of the flow meter, and the fourth pressure sensor 418 and the second TDS detection element 414 may be located downstream of the one-way valve 429 in sequence.

[0084] In some embodiments, referring to FIG. 5 , the waterway structure 400 also includes a backwash waterway 409 connected to the ultrafiltration filter element 21, and the backwash waterway 409 is provided with a flushing solenoid valve 421 electrically connected to the first circuit board, and the first circuit board can control the operating state of the flushing solenoid valve 421 to achieve backwashing of the ultrafiltration filter element 21. Among them, the first circuit board can adjust the flushing frequency and flushing intensity of the flushing solenoid valve 421 to flush the ultrafiltration filter element 21 according to the difference between the second pressure value and the third pressure value. When the ultrafiltration filter element 21 is blocked, the backwash waterway 409 can backwash the ultrafiltration filter element 21, which can effectively reduce the risk of blockage of the ultrafiltration filter element 21 and reduce impurities attached to the surface of the ultrafiltration filter element 21, thereby increasing the service life of the ultrafiltration filter element 21.

[0085] In the above embodiment, the flushing solenoid valve 421 may be a normally closed solenoid valve. For the embodiment in which the waterway structure 400 includes the first wastewater waterway 403 , the backwashing waterway 409 may be the first wastewater waterway 403 , that is, the flushing solenoid valve 421 may be disposed in the first wastewater waterway 403 .

[0086] In some embodiments, referring to Figure 5, the water channel structure 400 also includes a first water inlet solenoid valve 422, a second water inlet solenoid valve 423 and a wastewater solenoid valve 424 electrically connected to the first circuit board, the first water inlet solenoid valve 422 is arranged between the pretreatment filter element 22 and the ultrafiltration filter element 21, the second water inlet solenoid valve 423 is arranged downstream of the ultrafiltration filter element 21, and the wastewater solenoid valve 424 is arranged in the second wastewater waterway 406 and is used to control the on-off of the second wastewater waterway 406.

[0087] In the above embodiment, the first water inlet solenoid valve 422 and the second water inlet solenoid valve 423 can be normally open solenoid valves, so that water can flow in the water inlet waterway 401, the first water outlet waterway 402 and the second water outlet waterway 404. A one-way valve 429 can also be provided between the first water inlet solenoid valve 422 and the ultrafiltration filter element 21, and the one-way valve 429 is used to allow water to flow in one direction. The first water inlet solenoid valve 422 can be electrically connected to the first circuit board. When the ultrafiltration filter element 21 needs to be backwashed, the first circuit board can control the first water inlet solenoid valve 422 to be in a closed state, and control the flushing solenoid valve 421 to be in an open state, so as to achieve backwashing of the ultrafiltration filter element 21.

[0088] In some embodiments, referring to FIG. 5 , the water path structure 400 further includes a backup branch 410, the water inlet end of the backup branch 410 is connected to the water outlet end of the pretreatment filter element 22, the water outlet end of the backup branch 410 is connected to the water inlet end of the ultrafiltration filter element 21, and the backup branch 410 may be provided with a first manual ball valve 425, so that when the first water inlet solenoid valve 422 fails (is in a closed state), the user can manually open the first manual ball valve 425, so that the water treated by the pretreatment filter element 22 can flow to the ultrafiltration filter element 21 for reprocessing, which is beneficial to improving the reliability of the operation of the water purification equipment 10.

[0089] In some embodiments, referring to FIG5 , the waterway structure 400 further includes a second manual ball valve 426, which is disposed at the confluent waterway 405. When the circuit control of the water purification device 10 is in a faulty state, there is a situation where the pressure tank 311 is full of water but the water purification device 10 is still producing water, so that the mixed water continues to flow to the pressure tank 311. At this time, the user can operate the second manual ball valve 426 to cut off the confluent waterway 405, thereby avoiding the waste caused by the overflow of the water in the pressure tank 311.

[0090] In some embodiments, referring to FIG. 5 , the water circuit structure 400 further includes a backup water circuit 411, the water inlet end of the backup water circuit 411 is connected to the water outlet end of the pre-treatment filter element 22, and the water outlet end of the backup water circuit 411 can directly lead out water. The backup water circuit 411 can be provided with a third solenoid valve 428, a one-way valve 429 and a third manual ball valve 427. The third solenoid valve 428 can be a normally closed solenoid valve. When the circuit control of the water purification device 10 is in a normal state, the backup water circuit 411 is in a cut-off state. When the circuit control of the water purification device 10 is in a fault state, the user can open the third solenoid valve 428, and the water filtered by the pre-treatment filter element 22 can be led out as backup water for purposes such as cleaning.

[0091] In the above embodiment, the third manual ball valve 427 can be a three-way manual ball valve, the first end and the second end of the three-way manual ball valve can be used to connect the spare waterway 411, and the third end can be connected to the water outlet of the ultrafiltration filter element 21. The circuit control of the water purification device 10 is in a normal state, which can be understood as the first circuit board can control the normal operation of related electronic components, and the water purification device 10 can filter the raw water according to the control of the first circuit board; on the contrary, the circuit control of the water purification device 10 is in a fault state, which can be understood as the first circuit board cannot control the normal operation of related electronic components, resulting in the water purification device 10 being unable to filter the raw water. At this time, the waterway structure 400 can ensure the normal water use of users by adding the equipment waterway 411.

[0092] It is worth noting that in one embodiment of the present application, the solenoid valve and the one-way valve 429 mentioned above can both be electrically connected to the first circuit board, and the first circuit board can control the operating status of multiple valves respectively, which is beneficial to improve the degree of automation of the water purification equipment 10.

[0093] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0094] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A control structure of a water purification device, characterized in that: include: Main control module; as well as Multiple pulse regulating valves are electrically connected to the main control module and are used to be arranged on corresponding branch waterways. The water inlet end of the branch waterway is connected to the water outlet end of the confluent branch, and the water outlet end of the branch waterway is connected to the water inlet end of the confluent waterway. Ultrafiltration water can flow in the confluent branch, and ultrafiltration water and pure water can be mixed in the confluent waterway. The main control module is used to adjust the opening and closing degree of the pulse regulating valve to control the amount of ultrafiltration water used to mix with pure water.

2. The control structure of the water purification equipment according to claim 1, characterized in that: The control structure includes a first TDS detection component and a second TDS detection component, both of which are electrically connected to the main control module. The first TDS detection component is arranged in the confluent branch and is used to detect the initial TDS value of the ultrafiltration water. The second TDS detection component is arranged in the confluent water channel and is used to detect the mixed water TDS value of the mixed water. The main control module can control the opening and closing degree of the pulse regulating valve according to the difference between the initial TDS value and the mixed water TDS value.

3. The control structure of the water purification equipment according to claim 1, characterized in that: The control structure includes a first pressure sensor and a second pressure sensor both electrically connected to the main control module. The first pressure sensor is used to be arranged upstream of the pretreatment filter element and to measure a first pressure value of the water path. The second pressure sensor is used to be arranged downstream of the pretreatment filter element and to measure a second pressure value of the water path. The main control module can determine whether the pretreatment filter element is in a blocked state based on the difference between the first pressure value and the second pressure value.

4. The control structure of the water purification equipment according to claim 3, characterized in that: The control structure includes a third pressure sensor electrically connected to the main control module, the third pressure sensor is used to be arranged downstream of the ultrafiltration filter element and to measure a third pressure value of the water path, the second pressure sensor is located upstream of the ultrafiltration filter element, and the main control module can determine whether the ultrafiltration filter element is in a blocked state based on the difference between the second pressure value and the third pressure value.

5. The control structure of the water purification equipment according to claim 4, characterized in that: The control structure includes a flushing solenoid valve electrically connected to the main control module, and the flushing solenoid valve is used to be arranged on a backwashing water circuit, and the backwashing water circuit is connected to the wastewater end of the ultrafiltration filter element. The main control module can control the flushing solenoid valve to open when the ultrafiltration filter element is in a blocked state to backwash the ultrafiltration filter element.

6. The control structure of the water purification equipment according to claim 4, characterized in that: The control structure includes a fourth pressure sensor electrically connected to the main control module, the fourth pressure sensor is used to be arranged downstream of the reverse osmosis filter element and to measure a fourth pressure value of the water path, the third pressure sensor is located upstream of the reverse osmosis filter element, and the main control module can determine whether the reverse osmosis filter element is in a blocked state based on the difference between the third pressure value and the fourth pressure value.

7. The control structure of the water purification equipment according to any one of claims 1 to 6, characterized in that: The control structure includes a first solenoid valve and a second solenoid valve, both of which are electrically connected to the main control module. The first solenoid valve is used to be set in a first water outlet waterway, and the first water outlet waterway is used to directly lead out ultrafiltration water. The second solenoid valve is used to be set in a second water outlet waterway, and the second water outlet waterway is used to introduce ultrafiltration water into a reverse osmosis filter element for reverse osmosis treatment. The main control module can control the operating status of the first solenoid valve and the second solenoid valve respectively to make the first water outlet waterway or the second water outlet waterway in a conducting state.

8. The control structure of the water purification equipment according to any one of claims 1 to 6, characterized in that: The control structure includes a water level detection component and a water pump, both of which are electrically connected to the main control module. The water level detection component is used to be arranged in a pressure barrel and to detect the water level of the pressure barrel. The pressure barrel is connected to the water outlet end of the merged water channel. The water pump is arranged downstream of the pressure barrel. The main control module can control the operating state of the water pump according to the detection result of the water level detection component.

9. The control structure of the water purification equipment according to claim 8, characterized in that: The control structure includes a first flow meter and a second flow meter both electrically connected to the main control module. The first flow meter is arranged at the confluent waterway and is used to detect the amount of mixed water. The second flow meter is arranged downstream of the water pump and is used to detect the water output of the water purification equipment.

10. A water purification device, characterized in that: It includes a branch waterway, a confluent branch, a confluent waterway, a pretreatment filter element, an ultrafiltration filter element, a reverse osmosis filter element, a backwash waterway, a first water outlet waterway, a second water outlet waterway, a pressure barrel and a control structure of a water purification device as described in any one of claims 1 to 9, wherein the pretreatment filter element, the ultrafiltration filter element and the reverse osmosis filter element are arranged in sequence along the flow direction of water, the water inlet ends of the first water outlet waterway, the second water outlet waterway and the confluent branch are all connected to the water outlet end of the ultrafiltration filter element, the water inlet end of the backwash waterway is connected to the wastewater end of the ultrafiltration filter element, the water outlet end of the second water outlet waterway is connected to the water inlet end of the reverse osmosis filter element, the water outlet end of the reverse osmosis filter element is connected to the water inlet end of the confluent waterway, the water inlet end of the branch waterway is connected to the water outlet end of the confluent branch, the water outlet end of the branch waterway is connected to the water inlet end of the confluent waterway, and the water outlet end of the confluent waterway is connected to the water inlet end of the pressure barrel.

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