Fixed valve plate, valve body assembly, multi-way valve and water softener

Abstract

This application relates to a fixed valve plate, a valve body assembly, a multi-way valve, and a water softener. The fixed valve plate has a groove on its axial end face, and the groove wall defines a submerged channel with the valve body. The fixed valve plate has an inlet and an outlet communicating with the submerged channel. Because the submerged channel for slow washing is located on the multi-way valve, the structure of the water softener is simplified compared to existing technologies that require external piping to achieve the slow washing function.

Description

Technical Field

[0001] This application relates to the field of water treatment technology, and in particular to a fixed valve plate, valve body assembly, multi-way valve and water softener. Background Technology

[0002] With economic development and social progress, people have increasingly higher demands for quality of life, leading to the application of various water treatment equipment in people's lives. Common water treatment equipment includes water softeners and water purifiers. Among them, water softeners are widely used because they can remove calcium and magnesium ions from water, reducing water hardness.

[0003] A water softener includes a resin tank. The functional ions (sodium ions) on the resin in the tank exchange with calcium and magnesium ions in the water, thereby adsorbing excess calcium and magnesium ions in the water and achieving the purpose of removing scale (calcium carbonate or magnesium carbonate).

[0004] After a period of use, the concentration of functional ions in the resin of a water softener decreases, resulting in poor or absent water softening performance. In this case, the functional ions in the resin can be regenerated to restore normal operation. To improve brine utilization, a slow rinse is often performed on the resin after regeneration. However, traditional water softeners typically use external piping to achieve this slow rinse function, leading to a complex overall structure. Summary of the Invention

[0005] Therefore, it is necessary to address the problem of the complex structure of traditional water softeners by providing a simplified structure for the fixed valve plate, valve body assembly, multi-way valve, and water softener.

[0006] A fixed valve plate is used to cooperate with the valve body of a water softener. The axial end face of the fixed valve plate is provided with a groove, and the groove wall and the valve body define a submerged channel. The fixed valve plate is provided with an inlet and an outlet that communicate with the submerged channel.

[0007] In one embodiment, the inlet and outlet are respectively located at both ends of the submerged channel along its extension direction.

[0008] In one embodiment, the line connecting the inlet and the center point of the fixed valve plate forms a first line, and the line connecting the outlet and the center point of the fixed valve plate forms a second line.

[0009] The angle formed between the first line and the second line is greater than 90° and less than or equal to 180°.

[0010] A valve body assembly, the valve body assembly comprising:

[0011] The valve body has an inlet channel that connects to the raw water source;

[0012] As described in any of the above, the fixed valve plate and the valve body define an inlet channel communicating with the water softening device, the inlet is configured to communicate with the inlet channel, and the outlet is configured to communicate with the inlet channel.

[0013] A valve body assembly for a water softener, the water softener including a water softening device, the valve body assembly comprising:

[0014] The valve body has an inlet channel that connects to the raw water source;

[0015] A fixed valve plate is mounted on the valve body, and the fixed valve plate and the valve body define an inlet channel and a submerged channel that communicate with the water softening device of the water softener. The inlet is configured to communicate with the inlet channel, and the outlet is configured to communicate with the inlet channel.

[0016] The valve plate and / or the valve body are provided with grooves, and the groove walls form at least a portion of the channel wall of the submerged channel.

[0017] A multi-way valve for a water softener includes a movable valve plate assembly and a valve body assembly as described above, wherein the movable valve plate assembly is movably coupled to the valve body assembly.

[0018] The movable valve plate assembly is movable relative to the valve body to allow the water inlet channel to communicate with the submerged channel through the water inlet, or to block the communication between the water inlet channel and the submerged channel.

[0019] In one embodiment, the movable valve plate assembly includes a valve stem and a movable valve plate (31) connected to each other, the movable valve plate having a water inlet groove, and the water inlet channel communicating with the water inlet through the water inlet groove.

[0020] In one embodiment, the valve body assembly further includes a valve core nut, the valve body has a valve cavity, the fixed valve plate, the movable valve plate assembly and the valve core nut are all assembled in the valve cavity, the fixed valve plate is located between the valve body and the movable valve plate assembly in the axial direction, and the valve core nut is located between the movable valve plate assembly and the valve body in the radial direction;

[0021] The moving valve plate assembly, the fixed valve plate, the valve body, and the valve core nut define and form a communicating cavity, which is located between the water inlet channel and the water inlet.

[0022] In one embodiment, the moving valve plate is provided with a guide groove, and when the water inlet channel is connected to the water inlet, the guide groove connects the water outlet and the water inlet channel.

[0023] A water softener includes a multi-way valve as described in any of the preceding claims.

[0024] The aforementioned fixed valve plate, valve body assembly, multi-way valve, and water softener have a simplified structure because the submerged channel for slow washing is located on the multi-way valve, compared to the prior art which requires external piping to achieve the slow washing function. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of a water softener provided in one embodiment of this application;

[0026] Figure 2 for Figure 1 The isometric view of the multi-way valve of the water softener shown in the figure;

[0027] Figure 3 for Figure 2 The isometric view of the valve body of the multi-way valve shown.

[0028] Figure 4 for Figure 3 A schematic diagram of the valve body shown;

[0029] Figure 5 for Figure 2 An exploded view of the multi-way valve shown in the image;

[0030] Figure 6 for Figure 2 The isometric view of the moving valve plate of the multi-way valve shown in the figure;

[0031] Figure 7 for Figure 6 Another isometric view of the moving valve plate shown;

[0032] Figure 8 for Figure 6 A plan view of the moving valve plate shown;

[0033] Figure 9 for Figure 3 Another isometric view of the valve body shown;

[0034] Figure 10 for Figure 2 The diagram shows the structure of the fixed valve plate of the multi-way valve (the diagram shows the first flow control plane);

[0035] Figure 11 for Figure 2 The diagram shows the structure of the fixed valve plate of the multi-way valve (this diagram shows the second flow control plane);

[0036] Figure 12 for Figure 2 A top view of the multi-way valve shown;

[0037] Figure 13 for Figure 12 A cross-sectional view of the CC plane of the multi-way valve shown in the figure;

[0038] Figure 14 for Figure 12 A cross-sectional view of the DD surface of the multi-way valve shown in the figure;

[0039] Figure 15 for Figure 6 The diagram shows a plan view of the moving valve plate (the plan view shows the side of the moving valve plate facing the fixed valve plate);

[0040] Figure 16 for Figure 6 The diagram shows a plan view of the moving valve plate (the plan view shows the side of the moving valve plate facing away from the fixed valve plate);

[0041] Figure 17 for Figure 10 The isometric view of the fixed valve plate shown;

[0042] Figure 18 for Figure 2 The diagram shows a partial structure of the multi-way valve (the diagram shows the submerged channel);

[0043] Figure 19 for Figure 1 The diagram shows a partial structure of a water softener (the fixed valve plate is not placed on the fixed valve plate in this diagram);

[0044] Figure 20 for Figure 1 The diagram shown illustrates the working principle of a water softener when it is in soft water supply mode.

[0045] Figure 21 for Figure 1 The diagram shown illustrates the working principle of a water softener in its first regeneration state.

[0046] Figure 22 for Figure 1 The diagram shown illustrates the working principle of a water softener in its second regeneration state.

[0047] Figure 23 for Figure 1 The diagram shown illustrates the working principle of a water softener in slow wash mode.

[0048] Figure 24 for Figure 1 The diagram shown illustrates the working principle of a water softener in the forward washing state.

[0049] Figure 25 for Figure 1 The diagram shown illustrates the working principle of a water softener in backwash mode.

[0050] Figure 26 for Figure 1 The diagram shown illustrates the working principle of a water softener when it is in the brine supply replenishment state.

[0051] Explanation of reference numerals in the attached figures:

[0052] 100. Water softening device:

[0053] 200, Resin Tank; 300, Upper Water Distributor; 400, Lower Water Distributor; 500, Central Pipe;

[0054] 600. Regeneration device:

[0055] 700. Salt supply device;

[0056] 800. Integrated water system:

[0057] 10. Ejector; 900. Multi-way valve:

[0058] 20. Valve body assembly; 21. First channel; 22. Second channel; 23. Third channel; 24. First water inlet; 25. Second water inlet; 26. Fourth channel; 27. Fifth channel; 28. First water outlet; 29. ​​Second water outlet; 210. Sixth channel; 211. Raw water interface; 212. Seventh channel; 213. Water outlet; 214. Eighth channel; 215. Valve body; 2151. Valve chamber; 216. 2161. Fixed valve plate; 2162. First flow control plane; 2163. Second flow control plane; 2164. Groove; A. First port; B. Second port; C1. First sub-port; C2. Second sub-port; D. Fourth port; E. Fifth port; F. Sixth port; G. Seventh port; G1. First part; G2. Second part; H. Eighth port; I. Ninth port; J. Outlet; 217. Valve core nut; 218. Ninth channel; 219. Submerged channel;

[0059] 30. Moving valve plate assembly; 31. Moving valve plate; 311. Flow guide groove; 3111. First flow guide section; 3112. Second flow guide section; 3113. Third flow guide section; 312. Water inlet groove; 313. Plate body; 314. Cut-off section; 315. Drainage groove; 3151. First drainage groove; 3152. Second drainage groove; 316. Barrier section; 32. Valve stem; 321. Stem body; 322. Internal component;

[0060] 40. Connecting cavity;

[0061] 50. Conducting cavity. Detailed Implementation

[0062] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0063] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0064] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0065] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0066] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0067] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0068] See Figure 1 One embodiment of this application provides a water softener, which includes a softening device 100 and a regeneration device 600 connected to each other. The softening device 100 contains functional ions (sodium ions), which can exchange with calcium and magnesium ions in the raw water, thereby adsorbing excess calcium and magnesium ions and turning hard water into soft water. Typically, during the sodium ion exchange process, when the softened water develops hardness and the residual hardness exceeds the water quality standard, the sodium ions are considered to be ineffective. The regeneration device 600 can introduce brine (sodium chloride solution) into the softening device 100. The brine passes through the ineffective resin, replacing the calcium and magnesium ions in it into the solution, thereby regenerating the sodium ions in the resin and restoring the softening function of the softening device 100.

[0069] A water softener has a soft water supply mode and a non-soft water supply mode, and can switch between the two modes.

[0070] When the water is in soft water supply mode, raw water flows into the water softener 100. The functional ions (sodium ions) in the water softener 100 exchange with the calcium and magnesium ions in the raw water, adsorbing excess calcium and magnesium ions and transforming hard water into soft water for user consumption. It should be noted that when the water softener is in soft water supply mode, it cannot supply raw water. However, when it is not in soft water supply mode, it can supply raw water to ensure a continuous flow of water in both modes, preventing water supply interruptions and ensuring a better user experience.

[0071] Specifically, the regeneration device 600 has a soft water supply channel and a raw water supply channel. When the water softener is in soft water supply mode, the soft water supply channel is open, and the raw water supply channel is closed. The water softener 100 is connected to the raw water source through the soft water supply channel, and the raw water flows into the water softener 100 through the soft water supply channel. The functional ions (sodium ions) contained in the water softener 100 exchange with the calcium and magnesium ions in the raw water, adsorbing excess calcium and magnesium ions in the water, thus turning hard water into soft water, which is then discharged through the soft water supply channel for user use. Because the raw water supply channel is closed, the water softener cannot supply raw water when supplying soft water.

[0072] When the water softener is not supplying soft water, the soft water supply channel is cut off, while the raw water supply channel is open. Even when the water softener is no longer supplying soft water, it can still supply raw water, thus ensuring a continuous flow of water and improving the user experience.

[0073] The water softening device 100 includes a resin tank 200, an upper water distributor 300, a central pipe 500, and a lower water distributor 400. The resin tank 200 includes a tank body and resin containing functional ions disposed within the tank body. The upper ends of the upper water distributor 300 and the central pipe 500 are connected to a regeneration device 600, and the lower water distributor 400 is connected to the lower end of the central pipe 500. When the water softener is in soft water supply mode, raw water first flows through the soft water supply channel to the upper water distributor 300. The upper water distributor 300 sprays water into the resin in the resin tank 200. Calcium and magnesium ions in the raw water exchange with the functional ions on the resin to form soft water, which then flows through the lower water distributor 400 to the central pipe 500. The soft water flowing out from the central pipe 500 then flows out through the soft water supply channel on the regeneration device 600 for user use.

[0074] In one embodiment, the non-soft water supply state includes a regeneration state. In the regeneration state, the regeneration device 600 can introduce brine (sodium chloride solution) into the soft water device 100. The brine passes through the depleted resin to replace the calcium and magnesium ions in it into the solution, thereby completing the regeneration of sodium ions in the resin and restoring the soft water device 100 to its soft water function.

[0075] The regeneration process includes a first regeneration state and a second regeneration state. In the first regeneration state, the regeneration device 600 provides the softening device 100 with a brine solution of a first concentration, defined as the first brine solution. This first brine solution passes through the degraded resin, replacing calcium and magnesium ions in the resin into the solution, thereby completing the regeneration of sodium ions in the resin. In the second regeneration state, the regeneration device 600 provides the softening device 100 with a brine solution of a second concentration, defined as the second brine solution. This second brine solution passes through the degraded resin, replacing calcium and magnesium ions in the resin into the solution, thereby completing the regeneration of sodium ions in the resin. The first and second concentration brine solutions have different concentrations; that is, the first and second concentrations are not equal.

[0076] The water softener provided in this application has different concentrations of the first and second saline solutions introduced into the water softening device 100 during the first and second regeneration states. That is, the water softener provided in this application can introduce two different concentrations of saline solution into the water softening device 100. Compared with the prior art regeneration device 600, which can only introduce one concentration of saline solution into the water softening device 100, the combination of two different concentrations of saline solution can improve the regeneration rate of functional ions in the water softener. With the improved regeneration rate, the water production of the water softener can be increased accordingly.

[0077] When the water softener is in the first regeneration state and the second regeneration state, the first brine and the second brine provided by the regeneration device 600 first flow through the central pipe 500 to the lower distributor 400, and are sprayed into the resin in the resin tank 200 through the lower distributor 400. The brine passes through the exhausted resin to replace the calcium and magnesium ions in it into the solution. The replaced solution flows to the upper distributor 300 and enters the regeneration device 600 from the upper distributor 300 and is discharged.

[0078] The regeneration device 600 has a first regeneration channel and a second regeneration channel. When the water softener is in the first regeneration state, the first regeneration channel is connected to the central pipe 500 and supplies the first brine to the water softener 100; at this time, the second regeneration channel is disconnected. When the water softener is in the second regeneration state, the second regeneration channel is connected to the central pipe 500 and supplies the second brine to the water softener 100; at this time, the first regeneration channel is disconnected.

[0079] The regeneration device 600 also has a forward wash channel and a backwash channel. The water softener has forward wash and backwash states. In the forward wash state, the forward wash channel is open, and raw water flows from top to bottom through the forward wash channel to clean the water softener 100. Specifically, raw water flows from the upper distributor 300 to the lower distributor 400, and then flows out from the lower distributor 400 through the central pipe 500. In this state, the raw water flows from top to bottom through the resin layer in the resin tank 200, where water pressure slowly precipitates the loose resin, exchanges ions, and simultaneously removes impurities. In the backwash state, the backwash channel is open, and raw water flows from top to bottom through the backwash channel to clean the water softener 100. Specifically, raw water flows from the central pipe 500 to the lower distributor 400, and then flows from the lower distributor 400 to the upper distributor 300. In this state, the raw water flows from bottom to top through the resin layer in the resin tank 200, making the resin fluffy and achieving the purpose of powerful rinsing (ion exchange).

[0080] The regeneration device 600 includes a brine supply device 700 and an integrated water circuit 800, which is located between the brine supply device 700 and the water softener 100. The brine supply device 700 stores saturated brine. The aforementioned soft water supply channel, raw water supply channel, first regeneration channel, second regeneration channel, forward wash channel, and backwash channel are all located on the integrated water circuit 800 and are all connected to the raw water source. When the water softener is in soft water supply mode, the soft water supply channel is open, allowing raw water from the raw water source to flow into the water softener 100. The softened water from the water softener 100 then flows out through the soft water supply channel for user use. When the water softener is in the first regeneration mode, the first regeneration channel is open. The raw water from the raw water source mixes with the saturated brine from the brine supply device 700 in the first regeneration channel to form a first brine, which is then supplied to the water softener 100 through the first regeneration channel. When the water softener is in the second regeneration state, the second regeneration channel is opened. The raw water provided by the raw water source and the saturated brine provided by the brine supply device 700 are mixed in the second regeneration channel to form the second brine, which is then supplied to the water softener 100 through the second regeneration channel.

[0081] Continue reading Figure 1 The integrated water circuit 800 includes an ejector 10 and a multi-way valve 900, with the multi-way valve 900 located between the ejector 10 and the brine supply device 700. The ejector 10 forms a first jet channel and a second jet channel. The first jet channel is part of a first regeneration channel, and the second jet channel is part of a second regeneration channel. Raw water from the raw water source mixes with saturated brine provided by the brine supply device 700 in the first jet channel to form a first brine, and raw water from the raw water source mixes with saturated brine provided by the brine supply device 700 in the second jet channel to form a second brine.

[0082] See Figure 2 The multi-way valve 900 includes a valve body assembly 20 and a movable valve plate assembly 30. The valve body assembly 20 is mounted on the resin tank 200. The upper water distributor 300 and the central pipe 500 are connected to the valve body assembly 20 at the ends not connected to the lower water distributor 400. The movable valve plate assembly 30 is movably mounted on the valve body assembly 20 to allow the water softener to switch between the aforementioned soft water supply state and non-soft water supply state.

[0083] See Figure 3 and Figure 4 The valve body assembly 20 has a first channel 21, a second channel 22 and a third channel 23 (water inlet channel). The first channel 21 is connected to the first jet channel, the second channel 22 is connected to the second jet channel, and the third channel 23 is connected to the soft water device 100. Specifically, the third channel 23 is connected to the end of the central pipe 500 that is not connected to the lower water distributor 400.

[0084] Specifically, the valve body assembly 20 has a first water inlet 24 and a second water inlet 25. A portion of the first channel 21 is formed in the first water inlet 24 or the first channel 21 is connected to the first water inlet 24. A portion of the second channel 22 is formed in the second water inlet 25 or the second channel 22 is connected to the second water inlet 25. The first water inlet 24 is connected to the first jet channel, and the second water inlet 25 is connected to the second jet channel.

[0085] See Figure 5 The movable valve assembly 30 includes a movable valve 31, which is movable relative to the valve body assembly 20 to allow the third channel 23 to selectively communicate with either the first channel 21 or the second channel 22. The first channel 21 is configured to provide a first saline solution of a first concentration to the central tube 500 via the third channel 23, and the second channel 22 is configured to provide a second saline solution of a second concentration to the central tube 500 via the third channel 23.

[0086] In the above configuration, when the water softener needs to switch from the second regeneration state to the first regeneration state, the movable valve plate 31 moves relative to the valve body assembly 20, and the third channel 23 connects with the first channel 21. The first brine flowing out from the first jet channel can enter the third channel 23 through the first channel 21, and then flow to the central pipe 500 through the third channel 23. From the central pipe 500, it flows to the lower distributor 400, and then to the resin in the resin tank 200 to regenerate functional ions. When the water softener needs to switch from the first regeneration state to the second regeneration state, the movable valve plate 31 moves relative to the valve body assembly 20 again, and the third channel 23 connects with the second channel 22. The second brine flowing out from the second jet channel can enter the third channel 23 through the second channel 22, and then flow to the central pipe 500 through the third channel 23. From the central pipe 500, it flows to the lower distributor 400, and then to the resin in the resin tank 200 to regenerate functional ions.

[0087] It should be emphasized that the first channel 21 and the third channel 23 mentioned above are both part of the first regeneration channel, and the second channel 22 and the third channel 23 mentioned above are both part of the second regeneration channel.

[0088] Specifically, the movable valve plate assembly 30 is rotatably mounted on the valve body assembly 20 about an axis to switch the water softener between a soft water supply state and a non-soft water supply state. That is, the movable valve plate 31 is rotatably mounted on the valve body assembly 20 about an axis to switch the water softener between a soft water supply state and a non-soft water supply state. Of course, in other embodiments, the movable valve plate 31 can also be connected to the valve body assembly 20 using other movement methods, as long as it enables the water softener to switch between a soft water supply state and a non-soft water supply state.

[0089] See Figure 6 The moving valve plate 31 has a guide groove 311 on its axial end face facing the valve body assembly 20. When the water softener is in the first regeneration state, the guide groove 311 connects the first channel 21 and the third channel 23. When the water softener is in the second regeneration state, the guide groove 311 connects the first channel 21 and the second channel 22.

[0090] Continue reading Figure 3 and Figure 4 The valve body assembly 20 has a fourth channel 26 and a fifth channel 27. The fourth channel 26 is connected to the first jet channel, and the fifth channel 27 is connected to the second jet channel. Raw water flows through the fourth channel 26 into the first jet channel and through the fifth channel 27 into the second jet channel. In this way, the channel for introducing raw water into the jet injector 10 is set on the valve body assembly 20, simplifying the structure of the integrated water circuit 800.

[0091] The valve body assembly 20 has a first water inlet 28 and a second water inlet 29. A portion of the fourth channel 26 is located within the first water inlet 28 or is connected to the first water inlet 28. A portion of the fifth channel 27 is located within the second water inlet 29 or is connected to the second water inlet 29. The first water inlet 28 is connected to the first jet channel, and the second water inlet 29 is connected to the second jet channel.

[0092] The valve body assembly 20 has a sixth channel 210 (inlet channel) that is directly connected to the raw water source. When the third channel 23 is connected to the first channel 21, the fourth channel 26 is connected to the sixth channel 210, and the raw water flows from the sixth channel 210 to the fourth channel 26, and then from the fourth channel 26 into the first jet channel. When the third channel 23 is connected to the second channel 22, the fifth channel 27 is connected to the sixth channel 210, and the raw water flows from the sixth channel 210 to the fifth channel 27, and then from the fifth channel 27 into the second jet channel. This direct introduction of raw water into the valve body assembly 20 further simplifies the structure of the integrated water circuit 800.

[0093] The valve body assembly 20 has a raw water interface 211, which is connected to the raw water source. A portion of the sixth channel 210 is located inside the raw water interface 211 or the sixth channel 210 is connected to the raw water source through the raw water interface 211.

[0094] It should be noted that the sixth channel 210 and the fourth channel 26 are part of the first regeneration channel, and the sixth channel 210 and the fifth channel 27 are part of the second regeneration channel.

[0095] Further reading Figure 7 and Figure 8The moving valve plate 31 is provided with a water inlet groove 312. When the third channel 23 is connected to the first channel 21, the water inlet groove 312 is connected to the fourth channel 26 and the sixth channel 210. When the third channel 23 is connected to the second channel 22, the water inlet groove 312 is connected to the fifth channel 27 and the sixth channel 210.

[0096] Continue reading Figure 3 and Figure 4 The valve body assembly 20 has a seventh channel 212 (outlet channel). When the water softener is in the first regeneration state and the second regeneration state, that is, when the third channel 23 is connected to the first channel 21 or the third channel 23 is connected to the second channel 22, the seventh channel 212 is connected to the sixth channel 210, that is, the outlet channel is connected to the inlet channel. At this time, the water softener can supply raw water to achieve continuous flow.

[0097] The valve body assembly 20 has a water outlet 213, which is connected to an external water outlet pipe. A portion of the seventh channel 212 is located inside the water outlet 213 or the seventh channel 212 is connected to an external water outlet pipe through the water outlet 213.

[0098] The valve body assembly 20 also has an eighth channel 214, which is connected to the upper water distributor 300 in the resin tank 200. When the water softener is in soft water supply mode, the inlet tank 312 connects the sixth channel 210 and the eighth channel 214, the third channel 23 connects to the seventh channel 212, and the seventh channel 212 is disconnected from the sixth channel 210. At this time, raw water flows from the raw water source to the sixth channel 210, from the sixth channel 210 to the eighth channel 214, and then flows through the eighth channel 214 to the upper water distributor 300. The upper water distributor 300 evenly distributes the raw water in the resin in the resin tank 200. The calcium and magnesium ions in the raw water exchange with the sodium ions in the resin and precipitate out to become soft water. The soft water flows through the lower water distributor 400 to the central pipe 500, and from the central pipe 500 to the third channel 23, and finally flows out through the seventh channel 212 to supply soft water. At this time, since the seventh channel 212 is cut off from the sixth channel 210, the seventh channel 212 will not supply raw water, that is, the water softener will not supply raw water when supplying soft water.

[0099] Continue reading Figure 5 The valve body assembly 20 includes a valve body 215 and a fixed valve plate 216. The valve body 215 has a valve cavity 2151 (see...). Figure 9The fixed valve plate 216 is disposed within the valve cavity 2151. The first channel 21 to the eighth channel 214 are all formed on the valve body 215 and the fixed valve plate 216, meaning that the first channel 21 to the eighth channel 214 are all jointly formed by the valve body 215 and the fixed valve plate 216. Specifically, a portion of the first channel 21 to the eighth channel 214 is formed on the valve body 215, and the remaining portion is formed on the fixed valve plate 216. Specifically, the first water inlet 24, the second water inlet 25, the first water outlet 28, the second water outlet 29, the raw water interface 211, and the outlet interface 213 are all disposed on the valve body 215.

[0100] It should be understood that in some other embodiments, the valve body assembly 20 may omit the fixed valve plate 216. In this case, the first channel 21 to the eighth channel 214 are all formed on the valve body 215, which is not limited here.

[0101] The valve body 215 has an opening connecting the outside to the valve cavity 2151, and a fixed valve plate 216 is disposed on the bottom wall of the valve cavity 2151 directly opposite the opening. For details, see [link to relevant documentation]. Figure 10 and Figure 11 The fixed valve plate 216 has a first flow control plane 2161 and a second flow control plane 2162, which are axially opposite each other. The first flow control plane 2161 of the fixed valve plate 216 abuts against the bottom wall of the valve cavity 2151. It should be noted that the first flow control plane 2161 is one axial end face of the fixed valve plate 216, and the second flow control plane 2162 is the other axial end face of the fixed valve plate 216.

[0102] See Figures 12-14 The valve body assembly 20 also includes a valve core nut 217, which is located in the valve cavity 2151. The valve core nut 217, the fixed valve plate 216, and the valve body 215 define an assembly cavity. The moving valve plate assembly 30 also includes a valve stem 32. The moving valve plate 31 is located in the assembly cavity and abuts against the second flow control plane 2162 of the fixed valve plate 216 in the axial direction. The flow guide groove 311 is located on the end face of the moving valve plate 31 facing the fixed valve plate 216.

[0103] The valve stem 32 passes through the valve core nut 217 and is connected to the movable valve plate 31. The valve stem 32 can rotate about its own axis relative to the valve core nut 217 to drive the movable valve plate 31 to move, so that the water softener switches between soft water supply mode and non-soft water supply mode.

[0104] The valve body assembly 20 and the movable valve plate assembly 30 define a communicating cavity 40, which connects the water inlet groove 312 of the movable valve plate 31 to the sixth channel 210. Specifically, the water inlet groove 312 is connected to the sixth channel 210 via the communicating cavity 40. The water inlet groove 312 is located at the edge of the movable valve plate 31 (see...). Figure 15The sixth channel 210, the connecting cavity 40, and the seventh channel 212 together form the raw water supply channel, which is a water path provided on the valve body assembly 20 and the moving valve plate assembly 30.

[0105] See Figure 15 and Figure 16 The movable valve plate 31 includes a plate body 313 and a cut-off portion 314 extending radially outside the plate body 313. A guide groove 311 and a water inlet groove 312 are both provided on the plate body 313. The water inlet groove 312 is located at the radial edge of the plate body 313 to facilitate the flow of water from the communicating cavity 40 to the water inlet groove 312. Specifically, the water inlet groove 312 is a blind groove formed on the axial end face of the plate body 313 facing the fixed valve plate 216; that is, the water inlet groove 312 does not axially penetrate the plate body 313. The width of the water inlet groove 312 gradually increases from one end near the center of the plate body 313 to the other end, so that the water inlet groove 312 forms a larger inlet, facilitating water entry into the water inlet groove 312.

[0106] When the water softener is in soft water supply mode, the cut-off section 314 cuts off the connection of the raw water supply channel. Specifically, when the water softener is in soft water supply mode, the cut-off section 314 cuts off the connection between the seventh channel 212 and the connecting cavity 40. Thus, when raw water flows from the sixth channel 210 to the connecting cavity 40, it cannot flow to the seventh channel 212. When the water softener is not in soft water supply mode, the cut-off section 314 allows the raw water supply channel to remain open. Specifically, when the water softener is not in soft water supply mode, the cut-off section 314 allows the seventh channel 212 to connect to the connecting cavity 40. Thus, when raw water flows from the sixth channel 210 to the connecting cavity 40, it can flow from the connecting cavity 40 to the seventh channel 212, thus achieving uninterrupted flow.

[0107] See Figure 17 Each of the first channel 21 to the eighth channel 214 has an opening on the second flow control plane 2162 located on the fixed valve plate 216.

[0108] Specifically, the first channel 21 has a first port A, the second channel 22 has a second port B, the third channel 23 has a third port, the fourth channel 26 has a fourth port D, the fifth channel 27 has a fifth port E, the sixth channel 210 has a sixth port F, the seventh channel 212 has a seventh port G (port), and the eighth channel 214 has an eighth port H. It should be noted that, in this embodiment, the fixed valve plate 216 and the valve body 215 are separately configured. The valve body 215 also has eight ports, each corresponding to one of the first ports A to the eighth ports H. Specifically, the size of these eight ports is equal to that of the first ports A to the eighth ports H. It should be understood that in other embodiments, the size of these eight ports may not be equal to that of the first ports A to the eighth ports H, and this is not limited here.

[0109] Furthermore, the third port includes a first sub-port C1 and a second sub-port C2 spaced apart. Around the circumference of the fixed valve plate 216, the first port A, the second port B, the eighth port H, the first sub-port C1, the fourth port D, the fifth port E, the seventh port G, and the second sub-port C2 are sequentially spaced apart. The sixth port F is located at the periphery of the fixed valve plate 216, and radially opposite the first port A and the second port B.

[0110] In one embodiment, see further. Figure 3 The valve body assembly 20 has a ninth channel 218 (drainage channel). Specifically, the ninth channel 218 is opened on the valve body 215. The valve body 215 is provided with a drain interface that connects to an external drain pipe. A portion of the ninth channel 218 is located inside the drain interface or the ninth channel 218 is connected to an external drain pipe through the drain interface.

[0111] Continue reading Figure 6 The valve plate 31 has a drain groove 315 on its plate body 313. When the water softener is in the first regeneration state and the second regeneration state, the drain groove 315 connects the eighth channel 214 and the ninth channel 218. Wastewater discharged from the water softener 100 flows through the eighth channel 214 to the drain groove 315, and then flows through the drain groove 315 to the ninth channel 218 for discharge. Specifically, the ninth channel 218 has a ninth port I opened on the inner wall of the valve body 215, and the drain groove 315 connects the eighth port H and the ninth port I.

[0112] The valve stem 32 and the valve core nut 217 define and form the conduction cavity 50 (see reference). Figure 14 The guide cavity 50 connects to the drain groove 315 and the ninth channel 218. The valve stem 32 includes a stem body 321 and an internal component 322 (see...). Figure 13 The rod body 321 is connected to the movable valve plate 31, and the built-in component 322 is disposed inside the rod body 321. The rod body 321, the built-in component 322, and the valve core nut 217 define and form a guiding cavity 50. The drainage groove 315 includes a first drainage groove 3151 and a second drainage groove 3152 that are interconnected (see...). Figure 6 The first drainage groove 3151 is axially inserted at the center of the moving valve plate 31. One end of the second drainage groove 3152 is connected to the first drainage groove 3151, and the other end extends radially along the plate body 313. The second drainage groove 3152 is not axially inserted in the moving valve plate 31, but is located on the axial end face of the moving valve plate 31 facing the fixed valve plate 216.

[0113] The non-softened water supply state also includes a slow rinse state. When the water softener is in slow rinse state, the regeneration unit 600 supplies raw water to the softening unit 100 for slow rinsing. Specifically, the rate at which the regeneration unit 600 supplies raw water to the softening unit 100 is less than the rate at which the regeneration unit 600 supplies brine to the softening unit 100 when the water softener is in the first regeneration state and the second regeneration state. Thus, after the water softener enters the first regeneration state and switches to the slow rinse state, the regeneration unit 600 can supply raw water to the softening unit 100 at a slower rate. Similarly, after the water softener enters the second regeneration state and switches to the slow rinse state, the regeneration unit 600 can supply raw water to the softening unit 100 at a slower rate. Using the regeneration state in conjunction with the slow rinse state can improve the utilization rate of the brine.

[0114] See Figure 18 and Figure 19 The fixed valve plate 216 and the valve body 215 define a submerged channel 219 for slow washing. The fixed valve plate 216 has an inlet and an outlet J that are both connected to the submerged channel 219. The inlet is configured to connect to the inlet channel, and the outlet J is configured to connect to the inlet channel. Specifically, the movable valve plate assembly 30 can move relative to the valve body 215 to allow the inlet channel to connect to the submerged channel 219 through the inlet, or to block the connection between the inlet channel and the submerged channel 219.

[0115] When a slow rinse is required for the water softener 100, the movable valve assembly 30 moves relative to the valve body 215, and the inlet tank 312 connects with the inlet. Raw water flows through the sixth channel 210 (inlet channel) to the connecting chamber 40, and from the connecting chamber 40 to the inlet tank 312 to enter the inlet. From the inlet, it flows into the submerged channel 219, and from the submerged channel 219 to the outlet J, and from the outlet J to the water softener 100 for a slow rinse. This avoids the need for a separate pipeline for the slow rinse of the water softener 100, simplifying the structure of the water softener.

[0116] When the slow wash function of the water softener 100 is no longer needed, the moving valve assembly 30 moves again relative to the valve body 215. At this time, the inlet tank 312 is no longer connected to the inlet. The raw water flowing to the connecting chamber 40 through the sixth channel 210 (inlet channel) can no longer enter the inlet through the inlet tank 312 from the connecting chamber 40. Therefore, the raw water can no longer flow into the submerged channel 219. That is, the moving valve assembly 30 blocks the connection between the inlet channel and the submerged channel 219. At this time, the water softener cannot perform the slow wash function.

[0117] In one embodiment, a groove 2163 is provided on the first flow control plane 2161 of the valve plate 216 (see reference). Figure 10In one embodiment, the groove wall of the groove 2163 and the valve body 215 form a submerged channel 219. The inlet and outlet J are respectively located at both ends of the groove 2163 along its extension direction. In another embodiment, the valve body 215 has a groove 2163 on its surface facing the fixed valve plate 216, and the groove wall of the groove 2163 and the second flow control plane 2162 of the fixed valve plate 216 form a submerged channel 219. In yet another embodiment, grooves 2163 are formed on both the facing surfaces of the fixed valve plate 216 and the valve body 215, and the groove walls of the two grooves 2163 form a submerged channel 219.

[0118] The inlet and the fourth port D are the same port to further simplify the structure of the water softener. In the extension direction of the submerged channel 219, the inlet and outlet J are respectively located at both ends of the submerged channel 219. Thus, when the submerged channel 219 extends in a straight line and the inlet and the fourth port D are the same port, the outlet J is located between the first port A and the second port B in the circumferential direction of the fixed valve plate 216. This allows the water guide channel to connect the outlet J with the second sub-port C2 when the water softener is in slow wash mode, so that raw water flows from the outlet J to the second sub-port C2 and then through the third channel 23 into the water softener 100 to rinse the resin layer from bottom to top.

[0119] The line connecting the inlet and the center point of the fixed valve plate 216 is defined as the first line, and the line connecting the outlet J and the center point of the fixed valve plate 216 is defined as the second line. The angle formed between the first and second lines is greater than 90° and less than 180°. This allows for a larger circumferential distance between the inlet and outlet J on the fixed valve plate 216, facilitating the arrangement of other ports on the fixed valve plate 216 and ensuring that the various states of the water softener do not interfere with each other.

[0120] There is a gap between the center point of the guide channel 311 and the center point of the moving valve plate 31, so that the position of the guide channel 311 on the moving valve plate 31 corresponds to the position of each of the above-mentioned ports on the fixed valve plate 216, thereby facilitating the connection of the guide channel 311 to two of the above-mentioned ports. (Continue reading...) Figure 6 The flow guide channel 311 includes a first flow guide portion 3111, a second flow guide portion 3112, and a third flow guide portion 3113 that are sequentially connected in the circumferential direction of the plate body 313. A blocking portion 316 is formed between the first flow guide portion 3111 and the second flow guide portion 3112, and the second flow guide portion 3112 is radially opposite to the blocking portion 316. With this configuration, when the flow guide channel 311 connects two ports, the blocking portion 316 can block the remaining ports between the two ports connected by the flow guide channel 311, so that the water softener can operate normally in all states.

[0121] When the guide channel 311 connects the second sub-port C2 and the second port B, the blocking part 316 can cover the first port A and the outlet J to prevent the first port A from connecting with the second sub-port C2 or the second port B, and to prevent the outlet J from connecting with the second sub-port C2 or the second port B. When the guide channel 311 connects the second sub-port C2 and the outlet J, the blocking part 316 can cover the first port A to prevent the first port A from connecting with the second sub-port C2 or the outlet J.

[0122] Specifically, in the radial direction of the sheet 313, the blocking portion 316 is located outside the second guide portion 3112. It should be understood that in some other embodiments, in the radial direction of the sheet 313, the blocking portion 316 may also be located inside the second guide portion 3112, which is not limited here.

[0123] The outer contour of the guide channel 311 is located within a virtual fan shape. At this time, the guide channel 311 forms a "gate" shaped guide channel 311, so that when the guide channel 311 connects two ports, the blocking part 316 can block the remaining ports between the two ports connected by the guide channel 311. Of course, in some other embodiments, the shape of the guide channel 311 is not limited.

[0124] The cut-off portion 314 is at least partially opposite to the guide channel 311. Specifically, the circumferential extension length of the cut-off portion 314 in the moving valve plate 31 is greater than the circumferential extension length of the first guide portion 3111 in the moving valve plate 31, so that when the first guide portion 3111 is connected to the seventh port G, the cut-off portion 314 can cover the part of the seventh port G connected to the connecting cavity 40, thereby preventing raw water from mixing in when supplying soft water.

[0125] The working principle of the water softener provided in this application embodiment is as follows:

[0126] When the valve stem 32 rotates, the movable valve plate 31 moves in tandem. When the movable valve plate 31 moves relative to the fixed valve plate 216, the ports on the fixed valve plate 216 that connect to the water inlet tank 312 are different, and the ports that connect to the guide channel 311 are also different. This causes the multi-way valve 900 to switch between the soft water supply station, the first regeneration station, the second regeneration station, the forward wash station, the backwash station, the slow wash station, and the brine supply device water replenishment station. Correspondingly, this allows the water softener to switch between the soft water supply state, the first regeneration state, the second regeneration state, the forward wash state, the backwash state, the slow wash state, and the brine supply device water replenishment state.

[0127] For ease of explanation of each state, the seventh port G is defined as comprising a first part G1 and a second part G2 that are radially interconnected (see [reference]). Figure 19 The second part G2 is positioned away from the center point of the fixed valve plate 216 relative to the first part G1.

[0128] When soft water is available (see below) Figure 20 ):

[0129] The inlet tank 312 is connected to the eighth port H, the guide channel 311 is connected to the second sub-port C2 and the first part G1 of the seventh port G, and the cut-off section 314 covers the second part G2 of the seventh port G. The sixth channel 210, the connecting cavity 40, the eighth channel 214, the third channel 23, and the seventh channel 212 form a soft water supply channel. The raw water supply channel formed by the sixth channel 210, the connecting cavity 40, and the seventh channel 212 is cut off.

[0130] The raw water flows sequentially through the sixth channel 210, the connecting cavity 40, and the eighth channel 214 to the upper water distributor 300. The upper water distributor 300 sprays the water into the resin in the resin tank 200. The calcium and magnesium ions in the raw water exchange with the functional ions on the resin to form soft water, which then flows through the lower water distributor 400 to the central pipe 500. The soft water flowing out of the central pipe 500 flows through the third channel 23 to the seventh channel 212 to supply soft water.

[0131] In the first regeneration state (see) Figure 21 ):

[0132] The inlet tank 312 is connected to the fourth port D, the guide channel 311 is connected to the first port A and the second sub-port C2, and the drain tank 315 is connected to the eighth port H. At this time, the second part G2 of the seventh port G is connected to the connecting cavity 40. The sixth channel 210, the connecting cavity 40, the fourth channel 26, the first jet channel, the first channel 21, the third channel 23, the eighth channel 214, the guiding cavity 50, and the ninth channel 218 form the first regeneration channel. The raw water supply channel formed by the sixth channel 210, the connecting cavity 40, and the seventh channel 212 is connected.

[0133] Raw water flows sequentially through the sixth channel 210, the connecting cavity 40, the fourth channel 26, the first jet channel, the first channel 21, and the third channel 23 to the central pipe 500. From the central pipe 500, it flows down to the lower distributor 400 and is sprayed into the resin in the resin tank 200. The brine passes through the exhausted resin, displacing calcium and magnesium ions into the solution. The resulting wastewater flows up to the upper distributor 300 and then sequentially through the upper distributor 300 to the eighth channel 214, the drainage trough 315, the connecting cavity 50, and the ninth channel 218 before being discharged. At this point, because the raw water supply channel is open, the raw water can flow from the sixth channel 210 to the connecting cavity 40 and then through the connecting cavity 40 to the seventh channel 212 before being discharged.

[0134] In the second regeneration state (see) Figure 22 ):

[0135] The inlet trough 312 is connected to the fifth port E, the guide trough 311 is connected to the second port B and the second sub-port C2, and the drain trough 315 is connected to the eighth port H. At this time, the second part G2 of the seventh port G is connected to the connecting cavity 40. The sixth channel 210, the connecting cavity 40, the fifth channel 27, the second jet channel, the second channel 22, the third channel 23, the eighth channel 214, the guide cavity, and the ninth channel 218 form the second regeneration channel. The raw water supply channel formed by the sixth channel 210, the connecting cavity 40, and the seventh channel 212 is connected.

[0136] Raw water flows sequentially through the sixth channel 210, connecting cavity 40, fifth channel 27, second jet channel, second channel 22, and third channel 23 to the central pipe 500. From the central pipe 500, it flows down to the lower distributor 400 and is sprayed into the resin in the resin tank 200. The brine passes through the exhausted resin, displacing calcium and magnesium ions into the solution. The resulting wastewater flows up to the upper distributor 300 and then sequentially through the eighth channel 214, drainage trough 315, connecting cavity 50, and ninth channel 218 before being discharged. At this point, because the raw water supply channel is open, raw water can flow from the sixth channel 210 to the connecting cavity 40 and then through the connecting cavity 40 to the seventh channel 212 before being discharged.

[0137] During slow wash (see...) Figure 23 ):

[0138] The inlet tank 312 is connected to the fourth port D, the guide channel 311 is connected to the outlet J and the second sub-port C2, and the drain tank 315 is connected to the eighth port H. At this time, the second part G2 of the seventh port G is connected to the connecting cavity 40. The sixth channel 210, the connecting cavity 40, the fourth port D, the submerged channel 219, the outlet J, the third channel 23, the eighth channel 214, the guide cavity, and the ninth channel 218 form a slow washing channel. The raw water supply channel formed by the sixth channel 210, the connecting cavity 40, and the seventh channel 212 is connected.

[0139] Raw water flows sequentially through the sixth channel 210, connecting cavity 40, fourth outlet D, submerged channel 219, outlet J, and third channel 23 to the central pipe 500. From the central pipe 500, it flows down to the lower distributor 400, then through the resin layer to the upper distributor 300, where it slowly washes the resin layer from bottom to top, carrying away broken resin and residual dirt. Wastewater flows sequentially from the upper distributor 300 to the eighth channel 214, drainage trough 315, connecting cavity 50, and the ninth channel 218 before being discharged. At this point, because the raw water supply channel is open, raw water can flow from the sixth channel 210 to the connecting cavity 40, and then through the connecting cavity 40 to the seventh channel 212 before being discharged.

[0140] During the washing process (see...) Figure 24 ):

[0141] The inlet tank 312 is connected to the eighth port H, the outlet tank 315 is connected to the second sub-port C2, and the second part G2 of the seventh port G is connected to the connecting cavity 40. The sixth channel 210, the connecting cavity 40, the eighth channel 214, the third channel 23, the connecting cavity 50, and the ninth channel 218 form a forward washing channel. The raw water supply channel formed by the sixth channel 210, the connecting cavity 40, and the seventh channel 212 is connected.

[0142] Raw water flows sequentially through the sixth channel 210, the connecting chamber 40, and the eighth channel 214, then through the upper distributor 300 to the lower distributor 400, and finally out through the central pipe 500. The raw water flows from top to bottom through the resin layer in the resin tank 200, where water pressure slowly precipitates and exchanges ions in the loose resin, while simultaneously removing impurities. Wastewater flows sequentially from the central pipe 500 to the third channel 23, the drainage trough 315, the connecting chamber 50, and finally out through the ninth channel 218. At this point, because the raw water supply channel is open, the raw water can flow from the sixth channel 210 to the connecting chamber 40, and then through the connecting chamber 40 to the seventh channel 212 for discharge.

[0143] During backwashing (see...) Figure 25 ):

[0144] The inlet tank 312 is connected to the first sub-port C1, the outlet tank 315 is connected to the eighth port H, and the second part G2 of the seventh port G is connected to the connecting cavity 40. The sixth channel 210, the connecting cavity 40, the third channel 23, the eighth channel 214, the conductive cavity 50, and the ninth channel 218 form a forward washing channel. The raw water supply channel formed by the sixth channel 210, the connecting cavity 40, and the seventh channel 212 is connected.

[0145] Raw water flows sequentially through the sixth channel 210, the connecting chamber 40, and the third channel 23, and then through the central pipe 500 to the lower distributor 400. From the lower distributor 400, it flows out through the upper distributor 300. The raw water flows from bottom to top through the resin layer in the resin tank 200, making the resin fluffy and achieving the purpose of strong rinsing (ion exchange). Wastewater flows sequentially from the upper distributor 300 to the eighth channel 214, the connecting chamber 50, and the ninth channel 218 before being discharged. At this time, because the raw water supply channel is open, the raw water can flow from the sixth channel 210 to the connecting chamber 40, and then through the connecting chamber 40 to the seventh channel 212 before being discharged.

[0146] When the brine supply device is in the water replenishment state (see...) Figure 26 ):

[0147] When the brine storage in the brine supply device 700 is insufficient, it is necessary to replenish the brine supply device 700 with raw water and add salt to the raw water to form sufficient saturated brine in the brine supply device 700.

[0148] The inlet tank 312 is connected to the second port B. The sixth channel 210, the connecting cavity 40, the second channel 22, the second mixing channel, and the salt guiding channel (including the first salt guiding channel and the second salt guiding channel) form the water supply channel for the salt supply device 700. The raw water supply channel formed by the sixth channel 210, the connecting cavity 40, and the seventh channel 212 is connected.

[0149] Raw water flows sequentially through the sixth channel 210, the connecting cavity 40, the second channel 22, the second mixing channel, and the salt guiding channel to the salt supply device 700, thus replenishing the salt supply device 700 with sufficient raw water. At this time, since the raw water supply channel is open, the raw water can flow from the sixth channel 210 to the connecting cavity 40, and then through the connecting cavity 40 to the seventh channel 212 for discharge.

[0150] Specifically, when the first concentration is less than the second concentration, the water softener sequentially enters the first regeneration state and the second regeneration state.

[0151] In this way, when the functional ions in the water softener 100 need to be regenerated, the water softener first performs a first regeneration state and then a second concentration regeneration state. That is, a low concentration of brine is first introduced into the water softener 100, and then a high concentration of brine is introduced. In this way, the low concentration and high concentration are carried out in sequence, which can reduce the waste of brine while improving the regeneration rate of functional ions.

[0152] Specifically, the third channel 23 on the control multi-way valve 900 is connected to the first channel 21 and the second channel 22 in sequence.

[0153] Furthermore, the slow rinse state is performed after the first regeneration state and / or the second regeneration state. Specifically, after the first regeneration state, the water softener is in the slow rinse state, and after the second regeneration state, the water softener is in another slow rinse state. That is, after each regeneration state, the water softener is switched to the slow rinse state, which allows the resin layer to be slowly rinsed from bottom to top, removing broken resin and residual dirt, and improving the utilization rate of the brine. It should be understood that in some other embodiments, when the first and second regeneration states are performed sequentially, it is also possible to choose to perform a slow rinse after the first regeneration state and not perform a slow rinse after the second regeneration state, or to perform a slow rinse after the first regeneration state and not perform a slow rinse after the second regeneration state.

[0154] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above 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.

[0155] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A valve body assembly for a water softener, the water softener comprising a water softening device (100), characterized in that, The valve body assembly includes: The valve body (215) has an inlet channel that connects to the raw water source; A fixed valve plate (216) is mounted on the valve body (215). The fixed valve plate (216) and the valve body (215) define an inlet channel communicating with the soft water device and a submerged channel (219) for slow washing. The fixed valve plate (216) is provided with an inlet and an outlet (J) communicating with the submerged channel (219). The inlet is configured to communicate with the inlet channel, and the outlet (J) is configured to communicate with the inlet channel. The axial end face of the fixed valve plate (216) is provided with a groove (2163), and the groove wall of the groove (2163) forms at least a portion of the channel wall of the submerged channel (219). When the water softener needs to be slowly rinsed, the raw water enters the inlet through the inlet channel, flows from the inlet into the submerged channel (219), flows from the submerged channel (219) to the outlet (J), and flows through the outlet (J) to the water softener.

2. The valve body assembly according to claim 1, characterized in that, In the extension direction of the submerged channel (219), the inlet and the outlet (J) are respectively located at both ends of the submerged channel (219).

3. The valve body assembly according to claim 1, characterized in that, The line connecting the inlet and the center point of the fixed valve plate (216) forms a first line, and the line connecting the outlet (J) and the center point of the fixed valve plate (216) forms a second line. The angle formed between the first line and the second line is greater than 90° and less than or equal to 180°.

4. A multi-way valve for use in a water softener, characterized in that, It includes a movable valve plate assembly (30) and a valve body assembly as described in any one of claims 1-3, wherein the movable valve plate assembly (30) is movably coupled to the valve body assembly; The movable valve plate assembly (30) is movable relative to the valve body (215) to allow the water inlet channel to communicate with the submerged channel (219) through the water inlet, or to block the communication between the water inlet channel and the submerged channel (219).

5. The multi-way valve according to claim 4, characterized in that, The moving valve plate assembly (30) includes a valve stem (32) and a moving valve plate (31) connected to each other. The moving valve plate (31) has a water inlet groove (312), and the water inlet channel is connected to the water inlet through the water inlet groove (312).

6. The multi-way valve according to claim 4, characterized in that, The valve body assembly further includes a valve core nut (217). The valve body (215) has a valve cavity (2151). The fixed valve plate (216), the movable valve plate assembly (30), and the valve core nut (217) are all assembled in the valve cavity (2151). In the axial direction, the fixed valve plate (216) is located between the valve body (215) and the movable valve plate assembly (30). In the radial direction, the valve core nut (217) is located between the movable valve plate assembly (30) and the valve body (215). The moving valve plate assembly (30), the fixed valve plate (216), the valve body (215), and the valve core nut (217) define and form a communicating cavity (40), which is located between the water inlet channel and the water inlet.

7. The multi-way valve according to claim 6, characterized in that, The moving valve plate (31) is provided with a guide groove (311). When the water inlet channel is connected to the water inlet, the guide groove (311) connects the water outlet (J) and the water inlet channel.

8. A water softener, characterized in that, Includes the multi-way valve as described in any one of claims 4-7.

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