Multi-way valve and water softener

Abstract

The application relates to a multi-way valve and a water softener, comprising: a valve body assembly having a first channel, a second channel and a third channel communicated with a water softening device; a movable valve plate movably arranged on the valve body assembly and capable of moving relative to the valve body assembly to make the third channel communicated with the first channel or the second channel; wherein the first channel is configured to provide the water softening device with brine having a first concentration through the third channel, and the second channel is configured to provide the water softening device with brine having a second concentration through the third channel; the brine having the first concentration and the brine having the second concentration have different concentrations. Compared with the prior art, the water softener can only provide the water softening device with brine having one concentration, and the combination of the brine having two different concentrations can improve the regeneration rate of functional ions of the water softener. In the case of the improved regeneration rate, the water production of the water softener can be improved correspondingly.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water treatment, in particular to a multi-way valve and a water softener. BACKGROUND

[0002] With the development of economy and the progress of society, people's demand for the quality of life is getting higher and higher, and various water treatment equipment is applied to people's life. Common water treatment equipment includes water softener and water purifier, etc. Among them, the water softener is widely used in people's life because it can remove calcium and magnesium ions in water and reduce water hardness.

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

[0004] After the water softener is used for a period of time, the concentration of functional ions in the resin is low, thereby causing the water softening function of the water softener to be poor or no longer having the water softening function. At this time, the functional ions in the resin can be regenerated to make the water softener work normally. However, the regeneration rate of the functional ions of the traditional water softener is low, thereby causing the amount of produced soft water to be still small. SUMMARY

[0005] Therefore, it is necessary to provide a multi-way valve and a water softener capable of improving the regeneration rate of functional ions in view of the low regeneration rate of functional ions of the traditional water softener.

[0006] A multi-way valve for a water softener, the water softener comprising a water softening device, the multi-way valve comprising:

[0007] a valve body assembly having a first passage, a second passage, and a third passage in communication with the water softening device;

[0008] a movable valve disc movably assembled on the valve body assembly and capable of moving relative to the valve body assembly to make the third passage communicate with the first passage or the second passage;

[0009] wherein the first passage is configured to provide brine with a first concentration to the water softening device through the third passage, and the second passage is configured to provide brine with a second concentration to the water softening device through the third passage; the brine with the first concentration and the brine with the second concentration have different concentrations.

[0010] In one embodiment, the movable valve disc is rotatably assembled on the valve body assembly about an axis.

[0011] In one embodiment, the movable valve disc has a flow guide groove on an axial end surface facing the valve body assembly.

[0012] The flow guide groove communicates the third channel with the first channel or the flow guide groove communicates the third channel with the second channel.

[0013] In one of the embodiments, the valve body assembly comprises a valve body and a valve seat, the valve seat forms a latent channel with the valve body.

[0014] The movable valve disc is movable relative to the valve body assembly to selectively communicate the third channel with the first channel, the second channel and the latent channel.

[0015] The latent channel is configured to provide raw water to the water softening device through the third channel for slow washing.

[0016] In one of the embodiments, the valve body assembly has a seventh channel.

[0017] When the third channel is communicated with the first channel or the third channel is communicated with the second channel, the seventh channel is communicated with a raw water source.

[0018] In one of the embodiments, the valve body assembly has a sixth channel communicated with a raw water source.

[0019] When the third channel is communicated with the first channel or the third channel is communicated with the second channel, the seventh channel is communicated with the sixth channel.

[0020] In one of the embodiments, the movable valve disc is movable relative to the valve body assembly to selectively communicate the third channel with the first channel, the second channel and the seventh channel.

[0021] When the third channel is communicated with the seventh channel, the movable valve disc cuts off the communication between the seventh channel and the raw water source.

[0022] A water softener, comprising a water softening device (100) and a multi-way valve as claimed in any one of the preceding embodiments.

[0023] The water softener further comprises a salt supply device storing saturated brine and a jet, the jet is arranged between the valve body assembly and the salt supply device.

[0024] The jet device has a first jet channel in communication with the salt supply device, the raw water source and the first passage, and a second jet channel in communication with the salt supply device, the raw water source and the second passage; the raw water provided by the raw water source and the saturated brine provided by the salt supply device are mixed in the first jet channel to form the brine of the first concentration, and the raw water provided by the raw water source and the saturated brine provided by the salt supply device are mixed in the second jet channel to form the brine of the second concentration.

[0025] In one of the embodiments, the first jet channel has a first water guide channel, a first salt guide channel and a first mixing channel, one end of the first water guide channel, the first salt guide channel and the first mixing channel is communicated at a first intersection, the other end of the first water guide channel away from the first intersection is communicated with the raw water source, the other end of the first salt guide channel away from the first intersection is communicated with the salt supply device, and the other end of the first mixing channel away from the first intersection is communicated with the first passage; the cross-sectional area of the first water guide channel gradually decreases from the other end away from the first intersection to the one end close to the first intersection;

[0026] The second jet channel has a second water guide channel, a second salt guide channel and a second mixing channel, the second water guide channel, the second salt guide channel and the second mixing channel are communicated at a second intersection, the other end of the second water guide channel away from the second intersection is communicated with the raw water source, the other end of the second salt guide channel away from the second intersection is communicated with the salt supply device, and the other end of the second mixing channel away from the second intersection is communicated with the second passage; the cross-sectional area of the second water guide channel gradually decreases from the other end away from the second intersection to the one end close to the second intersection.

[0027] In one of the embodiments, the cross-sectional area of the other end of the first water guide channel away from the first intersection is equal to that of the other end of the second water guide channel away from the second intersection; the cross-sectional area of the one end of the first water guide channel close to the first intersection is not equal to that of the one end of the second water guide channel close to the second intersection.

[0028] In one of the embodiments, the valve body assembly has a fourth passage and a fifth passage, the fourth passage is communicated with the first jet channel to supply raw water to the first jet channel, and the fifth passage is communicated with the second jet channel to supply raw water to the second jet channel.

[0029] In one of the embodiments, the valve body assembly has a sixth passage communicated with the raw water source;

[0030] When the third channel is communicated with the first channel, the fourth channel is communicated with the sixth channel, and raw water flows to the fourth channel through the sixth channel; when the third channel is communicated with the second channel, the fifth channel is communicated with the sixth channel, and raw water flows to the fifth channel through the sixth channel.

[0031] In one of the embodiments, the moving valve plate is provided with a water inlet groove;

[0032] When the third channel is communicated with the first channel, the water inlet groove communicates the fourth channel with the sixth channel; when the third channel is communicated with the second channel, the water inlet groove communicates the fifth channel with the sixth channel.

[0033] The above multi-way valve and water softener, when the third channel is communicated with the first channel, the first channel provides the water softening device with brine having a first concentration through the third channel, when the third channel is communicated with the second channel, the second channel provides the water softening device with brine having a second concentration through the third channel, the brine having the first concentration and the brine having the second concentration have different concentrations. Compared with the prior art, the regeneration device can only provide the water softening device with brine having one concentration, the combination of the brine having two different concentrations can improve the regeneration rate of functional ions of the water softener, and correspondingly, the water production of the water softener can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 A structural schematic diagram of a water softener provided in one of the embodiments of the present application;

[0035] Figure 2 A structural diagram of a water softener shown in FIG. 1; Figure 1 A structural diagram of a water softener shown in FIG. 1;

[0036] Figure 3 A structural diagram of a water softener shown in FIG. 1; Figure 2 A sectional view of the A-A plane of the water softener shown in FIG. 1;

[0037] Figure 4 A sectional view of the B-B plane of the water softener shown in FIG. 1; Figure 2 A sectional view of the B-B plane of the water softener shown in FIG. 1;

[0038] Figure 5 A sectional view of the B-B plane of the water softener shown in FIG. 1; Figure 2 A sectional view of the B-B plane of the water softener shown in FIG. 1;

[0039] Figure 6 A sectional view of the B-B plane of the water softener shown in FIG. 1; Figure 1 A sectional view of the B-B plane of the water softener shown in FIG. 1;

[0040] Figure 7 A sectional view of the B-B plane of the water softener shown in FIG. 1; Figure 6 A sectional view of the B-B plane of the water softener shown in FIG. 1; A sectional view of the B-B plane of the water softener shown in FIG. 1;

[0041] Figure 8 for Figure 7 A schematic diagram of the valve body shown;

[0042] Figure 9 for Figure 6 An exploded view of the multi-way valve shown in the image;

[0043] Figure 10 for Figure 6 The isometric view of the moving valve plate of the multi-way valve shown in the figure;

[0044] Figure 11 for Figure 10 Another isometric view of the moving valve plate shown;

[0045] Figure 12 for Figure 10 A plan view of the moving valve plate shown;

[0046] Figure 13 for Figure 7 Another isometric view of the valve body shown;

[0047] Figure 14 for Figure 6 The diagram shows the structure of the fixed valve plate of the multi-way valve (the diagram shows the first flow control plane);

[0048] Figure 15 for Figure 6 The diagram shows the structure of the fixed valve plate of the multi-way valve (this diagram shows the second flow control plane);

[0049] Figure 16 for Figure 6 A top view of the multi-way valve shown;

[0050] Figure 17 for Figure 16 A cross-sectional view of the CC plane of the multi-way valve shown in the figure;

[0051] Figure 18 for Figure 16 A cross-sectional view of the DD surface of the multi-way valve shown in the figure;

[0052] Figure 19 for Figure 10 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);

[0053] Figure 20 for Figure 10 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);

[0054] Figure 21 for Figure 14 The isometric view of the fixed valve plate shown;

[0055] Figure 22 for Figure 6 The diagram shows a partial structure of the multi-way valve (the diagram shows the submerged channel);

[0056] Figure 23 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);

[0057] Figure 24 for Figure 1 The diagram shown illustrates the working principle of a water softener when it is in soft water supply mode.

[0058] Figure 25 for Figure 1 The diagram shown illustrates the working principle of a water softener in its first regeneration state.

[0059] Figure 26 for Figure 1 The diagram shown illustrates the working principle of a water softener in its second regeneration state.

[0060] Figure 27 for Figure 1 The diagram shown illustrates the working principle of a water softener in slow wash mode.

[0061] Figure 28 for Figure 1 The diagram shown illustrates the working principle of a water softener in the forward washing state.

[0062] Figure 29 for Figure 1 The diagram shown illustrates the working principle of a water softener in backwash mode.

[0063] Figure 30 for Figure 1 The diagram shown illustrates the working principle of a water softener when it is in the brine supply replenishment state.

[0064] Explanation of reference numerals in the attached figures:

[0065] 100. Water softening device:

[0066] 200, Resin Tank; 300, Upper Water Distributor; 400, Lower Water Distributor; 500, Central Pipe;

[0067] 600. Regeneration device:

[0068] 700. Salt supply device;

[0069] 800. Integrated water system:

[0070] 10, jet; 11, first water guide channel; 12, second water guide channel; 13, jet body; 131, jet body; 132, first water guide inlet; 133, second water guide inlet; 134, first salt guide inlet; 135, second salt guide inlet; 136, first water guide outlet; 137, second water guide outlet; 14, first nozzle; 15, second nozzle; 16, cover plate; 17, common channel; 18, first throat; 19, second throat; 110, first filter screen; 111, second filter screen;

[0071] 900, multi-way valve:

[0072] 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 interface; 214, eighth channel; 215, valve body; 2151, valve cavity; 216, valve disc; 2161, first flow control plane; 2162, second flow control plane; 2163, 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, water outlet; 217, valve core nut; 218, ninth channel; 219, latent channel;

[0073] 30, moving valve disc assembly; 31, moving valve disc; 311, flow guide groove; 3111, first flow guide part; 3112, second flow guide part; 3113, third flow guide part; 312, water inlet groove; 313, disc body; 314, cut-off part; 315, water outlet groove; 3151, first water outlet groove; 3152, second water outlet groove; 316, blocking part; 32, valve stem; 321, stem body; 322, built-in part;

[0074] 40, communication cavity;

[0075] 50, conduction cavity. DETAILED DESCRIPTION

[0076] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different ways beyond the specific embodiments described herein and by persons skilled in the art without departing from the spirit and scope of the present application, and it is therefore intended that all such changes and modifications be included within the scope of the present application.

[0077] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0078] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0079] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0080] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0081] It is to be noted that when an element is referred to as being "on" or "connected to" another element, it can be directly on the other element or intervening elements can also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. The terms "vertical", "horizontal", "upper", "lower", "left", "right", and the like as used herein are used for illustration only and are not intended to be limiting.

[0082] Referring to Figure 1 An embodiment of the present application provides a water softener, which comprises 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 raw water and adsorb the excess calcium and magnesium ions in the raw water, so as to change hard water into soft water. Generally, when the softness of the soft water exceeds the water quality standard, it is considered that the sodium ions have been exhausted in the process of exchanging sodium ions. The regeneration device 600 can introduce brine (sodium chloride solution) into the softening device 100, so as to replace the calcium and magnesium ions in the exhausted resin into the solution through the brine, thereby regenerating the sodium ions in the resin and restoring the softening function of the softening device 100.

[0083] The water softener has a soft water supply state and a non-soft water supply state, and can switch between the soft water supply state and the non-soft water supply state.

[0084] In the soft water supply state, the raw water flows into the softening device 100, the functional ions (sodium ions) contained in the softening device 100 exchange with the calcium and magnesium ions in the raw water and adsorb the excess calcium and magnesium ions in the raw water, so as to change hard water into soft water and discharge the soft water for use. It is to be noted that the water softener cannot supply raw water when it is in the soft water supply state, and can supply raw water when it is in the non-soft water supply state, so as to ensure that water flows out of the water softener in both the soft water supply state and the non-soft water supply state, thereby avoiding the interruption of water supply and causing bad experience to the user.

[0085] Specifically, the regeneration device 600 has a soft water supply channel and a raw water supply channel. When the water softener is in the soft water supply state, the soft water supply channel is conducted and the raw water supply channel is cut off, the softening device 100 is connected to the raw water source through the soft water supply channel, and the raw water flows into the softening device 100 through the soft water supply channel. The functional ions (sodium ions) contained in the softening device 100 exchange with the calcium and magnesium ions in the raw water and adsorb the excess calcium and magnesium ions in the raw water, so as to change hard water into soft water and discharge the soft water through the soft water supply channel for use. Since the raw water supply channel is cut off, the water softener cannot supply raw water when it supplies soft water.

[0086] When the water softener is in the non-soft water supply state, the soft water supply channel is cut off and the raw water supply channel is conducted, so that the water softener can supply raw water when it does not supply soft water, thereby ensuring continuous water flow of the water softener and improving user experience.

[0087] The water softener 100 comprises a resin tank 200, an upper water distributor 300, a central pipe 500 and a lower water distributor 400. The resin tank 200 comprises a tank body and resin containing functional ions arranged in the tank body. The upper ends of the upper water distributor 300 and the central pipe 500 are connected with the regeneration device 600, and the lower water distributor 400 is connected with the lower end of the central pipe 500. When the water softener is in the soft water supply state, raw water flows to the upper water distributor 300 through the soft water supply channel first, and the upper water distributor 300 sprays water on the resin in the resin tank 200. After the calcium and magnesium ions in the raw water are exchanged with the functional ions on the resin, soft water is formed and flows to the central pipe 500 through the lower water distributor 400. The soft water flowing out of the central pipe 500 flows out through the soft water supply channel on the regeneration device 600 to be used by the user.

[0088] In an embodiment, the non-soft water supply state comprises a regeneration state. In the regeneration state, the regeneration device 600 can introduce brine (sodium chloride solution) into the water softener 100. The brine passes through the ineffective resin to replace the calcium and magnesium ions in the brine into the solution, thereby completing the regeneration of sodium ions in the resin and restoring the soft water function of the water softener 100.

[0089] The regeneration state comprises a first regeneration state and a second regeneration state. In the first regeneration state, the regeneration device 600 provides the water softener 100 with brine having a first concentration, defined as first brine. The first brine passes through the ineffective resin to replace the calcium and magnesium ions in the brine into the solution, thereby completing the regeneration of sodium ions in the resin. In the second regeneration state, the regeneration device 600 provides the water softener 100 with brine having a second concentration, defined as second brine. The second brine passes through the ineffective resin to replace the calcium and magnesium ions in the brine into the solution, thereby completing the regeneration of sodium ions in the resin. The first concentration of brine and the second concentration of brine have different concentrations, i.e., the first concentration is not equal to the second concentration.

[0090] The water softener provided in the present application has different concentrations of the first brine and the second brine introduced into the water softener 100 in the first regeneration state and the second regeneration state. Compared with the prior art in which the regeneration device 600 can only introduce brine of one concentration into the water softener 100, the combination of brine of two different concentrations can improve the regeneration rate of functional ions of the water softener. In the case of improved regeneration rate, the water production of the water softener producing soft water can be improved accordingly.

[0091] 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 are first flowed to the lower water distributor 400 through the central pipe 500, and are sprayed on the resin in the resin tank 200 through the lower water distributor 400. The brine passes through the ineffective resin to replace the calcium and magnesium ions in the brine into the solution, and the replaced solution flows to the upper water distributor 300 and is discharged from the upper water distributor 300 into the regeneration device 600.

[0092] 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 in communication with the central pipe 500, and the first regeneration channel provides the first brine to the water softening device 100, and at this time the second regeneration channel is cut off. When the water softener is in the second regeneration state, the second regeneration channel is in communication with the central pipe 500, and the second regeneration channel provides the second brine to the water softening device 100, and at this time the first regeneration channel is cut off. It should be understood that in other embodiments, the regeneration device 600 can also be provided with only one regeneration channel, and when the first brine needs to be introduced, the first brine is introduced to the water softening device 100 through the first regeneration channel, and when the second brine needs to be introduced, the second brine is introduced to the water softening device 100 through the second regeneration channel.

[0093] The regeneration device 600 also has a forward washing channel and a reverse washing channel. The water softener also has a forward washing state and a reverse washing state. When the water softener is in the forward washing state, the forward washing channel is in conduction, and the raw water is washed from top to bottom to the water softening device 100 through the forward washing channel. That is, the raw water flows from the upper water distributor 300 to the lower water distributor 400, and flows out from the lower water 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, and the water pressure slowly deposits the loose resin and exchanges ions, while the dirt is precipitated. When the water softener is in the reverse washing state, the reverse washing channel is in conduction, and the raw water is washed from top to bottom to the water softening device 100 through the reverse washing channel. That is, the raw water flows to the lower water distributor 400 through the central pipe 500, and flows to the upper water distributor 300 from the lower water distributor 400. In this state, the raw water flows from bottom to top through the resin layer in the resin tank 200, so that the resin is loose to achieve the purpose of strong washing (ion exchange).

[0094] The regeneration device 600 comprises a salt supply device 700 and an integrated water circuit 800, which is arranged between the salt supply device 700 and the water softening device 100. The salt supply device 700 stores saturated brine, and the water softening supply channel, the raw water supply channel, the first regeneration channel, the second regeneration channel, the forward washing channel and the backwashing channel are all arranged on the integrated water circuit 800 and are all in communication with the raw water source. When the water softener is in the water softening supply state, the water softening supply channel is open, and the raw water flowing out of the raw water source can flow to the water softening device 100 through the water softening supply channel, and the soft water softened by the water softening device 100 can flow out through the water softening supply channel for use by the user. When the water softener is in the first regeneration state, the first regeneration channel is open, and the raw water provided by the raw water source and the saturated brine provided by the salt supply device 700 are mixed in the first regeneration channel to form first brine, and the first brine is supplied to the water softening device 100 through the first regeneration channel. When the water softener is in the second regeneration state, the second regeneration channel is open, and the raw water provided by the raw water source and the saturated brine provided by the salt supply device 700 are mixed in the second regeneration channel to form second brine, and the second brine is supplied to the water softening device 100 through the second regeneration channel.

[0095] Referring to Figure 2 and Figure 3 , the first regeneration channel comprises a first water guide channel 11, a first salt guide channel and a first mixing channel, one end of the first water guide channel 11, the first salt guide channel and the first mixing channel is communicated at a first intersection, the other end of the first water guide channel away from the first intersection is in communication with the raw water source, the other end of the first salt guide channel away from the first intersection is in communication with the salt supply device 700, and the other end of the first mixing channel away from the first intersection is in communication with the water softening device 100. The cross-sectional area of the first water guide channel 11 gradually decreases from the other end away from the first intersection to the end close to the first intersection.

[0096] In this way, when the raw water flows through the first water guide channel 11, since the cross-sectional area of the first water guide channel 11 gradually decreases from the other end away from the first intersection to the end close to the first intersection, when the raw water flows from the end away from the first mixing channel to the end close to the first mixing channel in the first water guide channel 11, the flow rate of the raw water gradually increases, and a first negative pressure is formed, under the action of the first negative pressure, the saturated brine in the salt supply device 700 flows to the first mixing channel through the first salt guide channel, and the raw water and the saturated brine are mixed in the first mixing channel to form first brine of a first concentration, and the first brine flows to the water softening device 100 through the first mixing channel.

[0097] Referring to Figure 4The second regenerative channel comprises a second water guide channel 12, a second salt guide channel and a second mixing channel. The second water guide channel 12, the second salt guide channel and the second mixing channel are communicated at a second intersection. The other end of the second water guide channel 12 away from the second intersection is communicated with the raw water source. The other end of the second salt guide channel away from the second intersection is communicated with the salt supply device. The other end of the second mixing channel away from the second intersection is communicated with the second channel. The cross-sectional area of the second water guide channel 12 gradually decreases from the other end away from the second intersection to the end close to the second intersection.

[0098] Thus, when the raw water flows through the second water guide channel 12, the flow rate of the raw water gradually increases when the raw water flows from the other end away from the second mixing channel to the end close to the second mixing channel due to the gradually decreasing cross-sectional area of the second water guide channel 12 from the other end away from the second intersection to the end close to the second intersection, and the second negative pressure is formed. Under the action of the second negative pressure, the saturated brine in the salt supply device 700 flows through the second salt guide channel to the second mixing channel. The raw water and the saturated brine are mixed in the second mixing channel to form the second brine of the second concentration. The second brine flows through the second mixing channel to the soft water device 100.

[0099] Further, the length of the first water guide channel 11 is equal to the length of the second water guide channel 12. The cross-sectional area of the other end of the first water guide channel 11 away from the first intersection is equal to the cross-sectional area of the other end of the second water guide channel 12 away from the second intersection. The cross-sectional area of the end of the first water guide channel 11 close to the first intersection is not equal to the cross-sectional area of the end of the second water guide channel 12 close to the second intersection. In this way, the first negative pressure is not equal to the second negative pressure, and the first concentration of the first brine is not equal to the second concentration of the second brine.

[0100] It should be understood that in other embodiments, the first concentration and the second concentration can also be made unequal by other arrangements, which are not limited herein.

[0101] In a specific embodiment, the cross-sectional area of the end of the first water guide channel 11 close to the first intersection is greater than the cross-sectional area of the end of the second water guide channel 12 close to the second intersection. In this way, the first negative pressure is less than the second negative pressure. At this time, the saturated brine flowing through the first salt guide channel to the first mixing channel is more, and the saturated brine flowing through the second salt guide channel to the second mixing channel is less. Thus, the first concentration is less than the second concentration.

[0102] Continuing to refer to Figure 1The integrated waterway 800 comprises the fluidic device 10 and the multi-way valve 900, which is arranged between the fluidic device 10 and the salt supply device 700. The first water guide channel 11, the first salt guide channel, the second water guide channel 12, the second salt guide channel, the first mixing channel and the second mixing channel are arranged on the fluidic device 10. That is, the first water guide channel 11, the first salt guide channel and the first mixing channel are formed on the fluidic device 10, and the first water guide channel 11, the first salt guide channel and the first mixing channel jointly form the first fluidic channel. The second water guide channel 12, the second salt guide channel and the second mixing channel are formed on the fluidic device 10, and the second water guide channel 12, the second salt guide channel and the second mixing channel jointly form the second fluidic channel.

[0103] In an embodiment, referring to Figure 5 The fluidic device 10 comprises a fluidic device body 13, a first nozzle 14, a second nozzle 15 and a cover plate 16, the first nozzle 14 and the second nozzle 15 are arranged in the fluidic device body 13, and the cover plate 16 is arranged on the fluidic device body 13. The first water guide channel 11 is formed in the first nozzle 14, the second water guide channel 12 is formed in the second nozzle 15, the first salt guide channel and the second salt guide channel are formed on the fluidic device body 13, and the fluidic device body 13 and the cover plate 16 jointly form the first mixing channel and the second mixing channel. In this way, the formation of the first water guide channel 11, the second water guide channel 12, the first salt guide channel, the second salt guide channel, the first mixing channel and the second mixing channel is facilitated.

[0104] The fluidic device body 13 comprises a fluidic device body 131 and a first water guide inlet 132, a second water guide inlet 133, a first salt guide inlet 134, a second salt guide inlet 135, a first water guide outlet 136 and a second water guide outlet 137 connected with the fluidic device body 131. The first water guide inlet 132 and the second water guide inlet 133 are in communication with the raw water source, the first salt guide inlet 134 and the second salt guide inlet 135 are connected with the salt supply device 700, and the first water guide outlet 136 and the second water guide outlet 137 are connected with the multi-way valve 900. The first nozzle 14 is arranged in the first water guide inlet 132, the second nozzle 15 is arranged in the second water guide inlet 133, the first salt guide channel is formed in the first salt guide inlet 134, and the second salt guide channel is formed in the second salt guide inlet 135. The first mixing channel and the second mixing channel have a shared channel 17 to simplify the arrangement of the channels. Specifically, the cover plate 16 is arranged on the fluidic device body 131, and the two form the shared channel 17. The other part of the first mixing channel is formed in the first water guide outlet 136, and the other part of the second mixing channel is formed in the second water guide outlet 137.

[0105] The injector 10 further comprises a first throat 18 and a second throat 19, the first throat 18 being at least partially arranged in the first water inlet 132 and spaced apart from the first nozzle 14, and the second throat 19 being at least partially arranged in the second water inlet 133 and spaced apart from the second nozzle 15. In this way, a first siphon area is formed between the first nozzle 14 and the first throat 18, so as to facilitate the suction of the saturated brine into the area for mixing under the action of the first negative pressure, thereby forming the first brine. Meanwhile, a second siphon area is formed between the second nozzle 15 and the second throat 19, so as to facilitate the suction of the saturated brine into the area for mixing under the action of the second negative pressure, thereby forming the second brine.

[0106] The injector 10 further comprises a first filter screen 110 arranged in the first water outlet 136, so as to filter the impurities in the first brine, thereby ensuring the cleanliness of the first brine flowing to the multi-way valve 900. The injector 10 further comprises a second filter screen 111 arranged in the second water outlet 137, so as to filter the impurities in the second brine, thereby ensuring the cleanliness of the second brine flowing to the multi-way valve 900.

[0107] Referring to Figure 6 , the multi-way valve 900 comprises a valve body assembly 20 and a valve disc assembly 30, the valve body assembly 20 being assembled on the resin tank 200, the upper water distributor 300 and the end of the central pipe 500 not connected with the lower water distributor 400 being connected with the valve body assembly 20, and the valve disc assembly 30 being movably arranged on the valve body assembly 20, so as to switch the water softener between the above-mentioned soft water supply state and the non-soft water supply state.

[0108] Referring to Figure 7 and Figure 8 , the valve body assembly 20 has a first passage 21, a second passage 22 and a third passage 23 (water inlet passage), the first passage 21 being communicated with the first mixing passage, the second passage 22 being communicated with the second mixing passage, and the third passage 23 being communicated with the water softening device 100, specifically, the third passage 23 being communicated with the end of the central pipe 500 not connected with the lower water distributor 400.

[0109] Specifically, the valve body assembly 20 has a first water inlet 24 and a second water inlet 25, part of the first passage 21 being formed in the first water inlet 24 or the first passage 21 being communicated with the first water inlet 24, and part of the second passage 22 being formed in the second water inlet 25 or the second passage 22 being communicated with the second water inlet 25, the first water inlet 24 being connected with the first water outlet 136 of the injector 10, and the second water inlet 25 being connected with the second water outlet 137 of the injector 10. In this way, the communication of the first passage 21 with the first mixing passage is facilitated, and the communication of the second passage 22 with the second mixing passage is facilitated.

[0110] The moving valve plate assembly 30 comprises a moving valve plate 31 which is movable relative to the valve body assembly 20 to communicate the third passage 23 with the first passage 21 or the second passage 22. The first passage 21 is configured to supply the first brine having a first concentration to the central pipe 500 through the third passage 23, and the second passage 22 is configured to supply the second brine having a second concentration to the central pipe 500 through the third passage 23.

[0111] When the water softener needs to switch from the second regeneration state to the first regeneration state, the moving valve plate 31 moves relative to the valve body assembly 20, the third passage 23 communicates with the first passage 21, the first brine flowing out of the first mixing passage can enter the third passage 23 through the first passage 21 and flow to the central pipe 500 through the third passage 23, and then flow to the resin in the resin tank 200 through the lower water distributor 400 to regenerate the functional ions. When the water softener needs to switch from the first regeneration state to the second regeneration state, the moving valve plate 31 moves relative to the valve body assembly 20 again, the third passage 23 communicates with the second passage 22, the second brine flowing out of the second mixing passage can enter the third passage 23 through the second passage 22 and flow to the central pipe 500 through the third passage 23, and then flow to the resin in the resin tank 200 through the lower water distributor 400 to regenerate the functional ions.

[0112] It is emphasized here that the first passage 21 and the third passage 23 are both part of the first regeneration passage, and the second passage 22 and the third passage 23 are both part of the second regeneration passage.

[0113] Specifically, the moving valve plate assembly 30 is rotatably assembled on the valve body assembly 20 to switch the water softener between the soft water supply state and the non-soft water supply state. That is, the moving valve plate 31 is rotatably assembled on the valve body assembly 20 to switch the water softener between the soft water supply state and the non-soft water supply state. Of course, in other embodiments, the moving valve plate 31 can also be movably connected to the valve body assembly 20 in other ways as long as it can switch the water softener between the soft water supply state and the non-soft water supply state.

[0114] Referring to Figure 10 , the moving valve plate 31 is provided with a flow guide groove 311 facing the axial end surface of the valve body assembly 20. When the water softener is in the first regeneration state, the flow guide groove 311 communicates the first passage 21 and the third passage 23, and when the water softener is in the second regeneration state, the flow guide groove 311 communicates the first passage 21 and the second passage 22.

[0115] Continuing to refer to Figure 7 and Figure 8The valve body assembly 20 has a fourth channel 26 and a fifth channel 27. The fourth channel 26 is in communication with the first water guide channel 11, and the fifth channel 27 is in communication with the second water guide channel 12. Raw water flows into the first water guide channel 11 through the fourth channel 26, and flows into the second water guide channel 12 through the fifth channel 27. In this way, the channel for introducing raw water into the injector 10 is provided on the valve body assembly 20, and the structure of the integrated water path 800 is simplified.

[0116] The valve body assembly 20 has a first water outlet 28 and a second water outlet 29. Part of the fourth channel 26 is provided in the first water outlet 28 or the fourth channel 26 is in communication with the first water outlet 28. Part of the fifth channel 27 is provided in the second water outlet 29 or the fifth channel 27 is in communication with the second water outlet 29. The first water outlet 28 is connected to the first water inlet 132 of the injector 10, so that the fourth channel 26 is in communication with the first water guide channel 11. The second water outlet 29 is connected to the second water inlet 133 of the injector 10, so that the fifth channel 27 is in communication with the second water guide channel 12.

[0117] The valve body assembly 20 has a sixth channel 210 (water inlet channel) in direct communication with a raw water source. When the third channel 23 is in communication with the first channel 21, the fourth channel 26 is in communication with the sixth channel 210. Raw water flows into the fourth channel 26 through the sixth channel 210, and then flows into the first water guide channel 11 from the fourth channel 26. When the third channel 23 is in communication with the second channel 22, the fifth channel 27 is in communication with the sixth channel 210. Raw water flows into the fifth channel 27 through the sixth channel 210, and then flows into the second water guide channel 12 from the fifth channel 27. In this way, the channel for directly introducing raw water is provided on the valve body assembly 20, and the structure of the integrated water path 800 is further simplified.

[0118] The valve body assembly 20 has a raw water interface 211 connected to a raw water source. Part of the sixth channel 210 is provided in the raw water interface 211 or the sixth channel 210 is in communication with the raw water source through the raw water interface 211.

[0119] 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.

[0120] Further, referring to Figure 11 and Figure 12 The moving valve plate 31 is provided with a water inlet groove 312. When the third channel 23 is in communication with the first channel 21, the water inlet groove 312 is in communication with the fourth channel 26 and the sixth channel 210. When the third channel 23 is in communication with the second channel 22, the water inlet groove 312 is in communication with the fifth channel 27 and the sixth channel 210.

[0121] Continuing to refer toFigure 7 and Figure 8 When the water softener is in the first regeneration state and the second regeneration state, i.e. the third passage 23 is in communication with the first passage 21 or the third passage 23 is in communication with the second passage 22, the seventh passage 212 is in communication with the sixth passage 210, i.e. the outlet water passage is in communication with the inlet water passage, at this time the water softener can supply raw water to realize continuous flow.

[0122] The valve body assembly 20 has an outlet water interface 213 connected with an external outlet water pipe, part of the seventh passage 212 is arranged in the outlet water interface 213 or the seventh passage 212 is in communication with the external outlet water pipe through the outlet water interface 213.

[0123] The valve body assembly 20 further has an eighth passage 214 connected with the upper water distributor 300 in the resin tank 200. When the water softener is in the soft water supply state, the inlet water groove 312 is in communication with the sixth passage 210 and the eighth passage 214, the third passage 23 is in communication with the seventh passage 212, and the seventh passage 212 is cut off from the sixth passage 210. At this time, raw water flows from a raw water source to the sixth passage 210, from the sixth passage 210 to the eighth passage 214, and from the eighth passage 214 to the upper water distributor 300, the upper water distributor 300 makes the raw water uniformly distributed 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 to become soft water, the soft water flows to the central pipe 500 through the lower water distributor 400, and from the central pipe 500 to the third passage 23, and finally into the seventh passage 212 to be supplied out to supply soft water. At this time, since the seventh passage 212 is cut off from the sixth passage 210, the seventh passage 212 will not supply raw water, i.e. the water softener will not supply raw water when supplying soft water.

[0124] Continuing to refer to Figure 9 The valve body assembly 20 comprises a valve body 215 and a valve disc 216, the valve body 215 has a valve cavity 2151 (see Figure 13 The valve disc 216 is arranged in the valve cavity 2151, and the first passage 21 to the eighth passage 214 are all arranged on the valve body 215 and the valve disc 216. That is, part of the first passage 21 to the eighth passage 214 is formed on the valve body 215, and the remaining part is formed on the valve disc 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 water interface 213 are all arranged on the valve body 215.

[0125] It should be understood that in other embodiments, the valve body assembly 20 can omit the valve disc 216, at this time, the first passage 21 to the eighth passage 214 are all formed on the valve body 215, which is not limited herein.

[0126] The valve body 215 has an opening communicating between the outside and the valve cavity 2151, and the valve disc 216 is arranged on the bottom wall of the valve cavity 2151 opposite to the opening. Specifically, referring to Figure 14 and Figure 15 , the valve disc 216 has a first flow control plane 2161 and a second flow control plane 2162, and the first flow control plane 2161 and the second flow control plane 2162 are opposite in the axial direction. The first flow control plane 2161 of the valve disc 216 abuts against the bottom wall of the valve cavity 2151. Referring to Figure 16-18 , the valve body assembly 20 further comprises a valve core nut 217 arranged in the valve cavity 2151, and the valve core nut 217, the valve disc 216 and the valve body 215 form an assembly cavity. The valve stem assembly 30 further comprises a valve stem 32, and the valve disc 31 is arranged in the assembly cavity and abuts against the second flow control plane 2162 of the valve disc 216 in the axial direction. The flow guide groove 311 is arranged on the end surface of the valve disc 31 facing the valve disc 216.

[0127] The valve stem 32 is arranged in the valve core nut 217 and connected with the valve disc 31. The valve stem 32 can rotate around its own axis relative to the valve core nut 217 to drive the valve disc 31 to move, so as to switch the water softener between the soft water supply state and the non-soft water supply state.

[0128] The valve body assembly 20 and the valve disc assembly 30 form a communication cavity 40, and the communication cavity 40 communicates the water inlet groove 312 of the valve disc 31 with the sixth passage 210. That is, the water inlet groove 312 communicates with the sixth passage 210 through the communication cavity 40. The water inlet groove 312 is arranged on the edge of the valve disc 31 (referring to Figure 19 ) to facilitate communication with the communication cavity 40. The sixth passage 210, the communication cavity 40 and the seventh passage 212 jointly form a raw water supply passage.

[0129] Referring to Figure 19 and Figure 20 , the valve disc 31 comprises a disc body 313 and a cutoff portion 314 radially extending outside the disc body 313, and the flow guide groove 311 and the water inlet groove 312 are arranged on the disc body 313. The water inlet groove 312 is arranged on the radial edge of the disc body 313 to facilitate the water flow in the communication cavity 40 to the water inlet groove 312. Specifically, the water inlet groove 312 is a blind groove arranged on the axial end surface of the disc body 313 facing the valve disc 216, that is, the water inlet groove 312 is not arranged axially through the disc body 313. The width of the water inlet groove 312 gradually increases from one end close to the center of the disc body 313 to the other end, so that the water inlet groove 312 forms a larger inlet to facilitate the water to enter the water inlet groove 312.

[0130] When the water softener is in the soft water supply state, the cutoff portion 314 cuts off the communication of the raw water supply passage, specifically, when the water softener is in the soft water supply state, the cutoff portion 314 cuts off the communication between the seventh passage 212 and the communication cavity 40, so that when the raw water flows from the sixth passage 210 to the communication cavity 40, it cannot flow to the seventh passage 212. When the water softener is in the non-soft water supply state, the cutoff portion 314 allows the raw water supply passage to be conducted, specifically, when the water softener is in the non-soft water supply state, the cutoff portion 314 allows the seventh passage 212 to communicate with the communication cavity 40, so that when the raw water flows from the sixth passage 210 to the communication cavity 40, it can flow from the communication cavity 40 to the seventh passage 212 to achieve continuous flow.

[0131] Referring to Figure 21 , the first passage 21 to the eighth passage 214 each have a port provided at the second flow control plane 2162 of the fixed valve plate 216.

[0132] Specifically, the first passage 21 has a first port A, the second passage 22 has a second port B, the third passage 23 has a third port, the fourth passage 26 has a fourth port D, the fifth passage 27 has a fifth port E, the sixth passage 210 has a sixth port F, the seventh passage 212 has a seventh port G (port), and the eighth passage 214 has an eighth port H. It should be noted that in this embodiment, the fixed valve plate 216 is provided separately from the valve body 215, and at this time, eight ports are also provided on the valve body 215, which are respectively opposite to the first port A to the eighth port H. Specifically, the eight ports are equal in size to the first port A to the eighth port H. It should be understood that in other embodiments, the eight ports can also be different in size from the first port A to the eighth port H, which is not limited herein.

[0133] Further, the third port includes a first sub-port C1 and a second sub-port C2 which are spaced apart. In the circumferential direction 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 and spaced apart. The sixth port F is provided at the circumferential edge of the fixed valve plate 216, and in the radial direction of the fixed valve plate 216, the sixth port F is opposite to the first port A and the second port B.

[0134] In an embodiment, continuing to refer to Figure 7 , the valve body assembly 20 has a ninth passage 218 (drainage passage), specifically, the ninth passage 218 is provided on the valve body 215, and the valve body 215 is provided with a drainage interface connected with an external drainage pipe, and part of the ninth passage 218 is provided in the drainage interface or the ninth passage 218 communicates with the external drainage pipe through the drainage interface.

[0135] Continuing to refer to Figure 10The valve plate 31 is provided with a drain groove 315, which is communicated with the eighth channel 214 and the ninth channel 218 when the water softener is in the first regeneration state and the second regeneration state. The waste water discharged from the water softener 100 flows to the drain groove 315 through the eighth channel 214, and is discharged through the ninth channel 218. Specifically, the ninth channel 218 has a ninth opening I formed on the inner wall of the valve body 215, and the drain groove 315 is communicated with the eighth opening H and the ninth opening I.

[0136] The valve stem 32 and the valve core nut 217 form a through cavity 50 (see Figure 18 ), which is communicated with 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 17 ), the stem body 321 is connected with the valve plate 31, and the internal component 322 is arranged in the stem body 321. The stem body 321, the internal component 322 and the valve core nut 217 form the through cavity 50. The drain groove 315 includes a first drain groove 3151 and a second drain groove 3152 (see Figure 10 ) which are communicated with each other. The first drain groove 3151 is axially arranged at the center of the valve plate 31, and the second drain groove 3152 is communicated with the first drain groove 3151 at one end and extends along the radial direction of the plate body 313 at the other end. The second drain groove 3152 is not arranged axially in the valve plate 31, but is arranged on the axial end surface of the valve plate 31 facing the valve plate 216.

[0137] The non-soft water supply state also includes a slow washing state. When the water softener is in the slow washing state, the regeneration device 600 provides raw water to the water softener 100 for slow washing. Specifically, the speed at which the regeneration device 600 provides raw water to the water softener 100 is less than the speed at which the regeneration device 600 provides brine to the water softener 100 when the water softener is in the first regeneration state and the second regeneration state. In this way, when the water softener switches from the first regeneration state to the slow washing state, the regeneration device 600 can provide raw water at a slower speed to the water softener 100, and when the water softener switches from the second regeneration state to the slow washing state, the regeneration device 600 can provide raw water at a slower speed to the water softener 100. The use of the regeneration state combined with the slow washing state (the slow washing state can make the salt solution that is not used in the regeneration state flow, and the salt solution is used again during the flow process, thereby improving the utilization rate of the salt solution) can improve the utilization rate of the salt solution.

[0138] Referring to Figure 22 and Figure 23The valve disc 216 and the valve body 215 form a latent channel 219 for slow washing, and the valve disc 216 is provided with a water inlet and a water outlet J which are both communicated with the latent channel 219. When the softening device 100 needs to be washed slowly, the water inlet groove 312 is communicated with the water inlet, raw water flows into the communicating cavity 40 through the sixth channel 210, and then flows into the water inlet groove 312 from the communicating cavity 40, and then flows into the water inlet, and then flows into the latent channel 219 from the water inlet, and then flows into the water outlet J from the latent channel 219, and then flows into the softening device 100 through the water outlet J to be washed slowly. In this way, another pipeline is avoided to wash the softening device 100 slowly, and the structure of the water softener is simplified.

[0139] In an embodiment, the first flow control plane 2161 of the valve disc 216 is provided with a groove 2163 (see Figure 14 ), the groove wall of the groove 2163 and the valve body 215 form the latent channel 219, and in the extension direction of the groove 2163, the water inlet and the water outlet J are arranged at both ends of the groove 2163. In another embodiment, the surface of the valve body 215 facing the valve disc 216 is provided with a groove 2163, and the groove wall of the groove 2163 and the second flow control plane 2162 of the valve disc 216 form the latent channel 219. In yet another embodiment, the surfaces of the valve disc 216 and the valve body 215 facing each other are both provided with a groove 2163, and the groove walls of the two grooves 2163 form the latent channel 219.

[0140] The water inlet and the fourth port D are the same port, so as to further simplify the structure of the water softener. In the extension direction of the latent channel 219, the water inlet and the water outlet J are arranged at both ends of the latent channel 219. In this way, when the latent channel 219 extends in a straight line, and the water inlet and the fourth port D are the same port, the water outlet J is located between the first port A and the second port B in the circumferential direction of the valve disc 216, so as to facilitate the water guide groove to guide the water outlet J and the second sub-port C2 to communicate when the water softener is in the slow washing state, so as to facilitate the raw water to flow from the water outlet J to the second sub-port C2 to flow into the softening device 100 through the third channel 23, so as to wash the resin layer from bottom to top.

[0141] The line connecting the water inlet and the center point of the valve disc 216 is defined as the first line, the line connecting the water outlet J and the center point of the valve disc 216 is defined as the second line, and the included angle between the first line and the second line is greater than 90° and less than 180°. In this way, the distance between the water inlet and the water outlet J in the circumferential direction of the valve disc 216 can be large, so as to facilitate the arrangement of the other ports on the valve disc 216, so as to ensure that the states of the water softener do not interfere with each other.

[0142] The guide groove 311 has a spacing between the center point of the movable valve plate 31, so that the position of the guide groove 311 on the movable valve plate 31 corresponds to the position of each port on the fixed valve plate 216, and then the guide groove 311 is convenient to communicate two ports of the plurality of ports. Referring to Figure 10 The guide groove 311 includes a first guide portion 3111, a second guide portion 3112 and a third guide portion 3113 communicated in sequence in the circumferential direction of the plate body 313, a blocking portion 316 is formed between the first guide portion 3111 and the second guide portion 3112, and the second guide portion 3112 is opposite to the blocking portion 316 in the radial direction. In this way, when the guide groove 311 communicates two ports, the blocking portion 316 can block the remaining ports between the two ports communicated by the guide groove 311, so that the water softener can normally operate between each state.

[0143] For example, when the guide groove 311 communicates the second sub-port C2 and the second port B, the blocking portion 316 can cover the first port A and the water outlet J, so as to avoid the first port A and the second sub-port C2 or the second port B from being communicated, and avoid the water outlet J and the second sub-port C2 or the second port B from being communicated. When the guide groove 311 communicates the second sub-port C2 and the water outlet J, the blocking portion 316 can cover the first port A, so as to avoid the first port A and the second sub-port C2 or the water outlet J from being communicated.

[0144] Specifically, in the radial direction of the plate body 313, the blocking portion 316 is located outside the second guide portion 3112. It should be understood that in other embodiments, the blocking portion 316 can also be arranged inside the second guide portion 3112 in the radial direction of the plate body 313, which is not limited herein.

[0145] The outer contour of the guide groove 311 is located in a virtual sector, and at this time the guide groove 311 forms a “door” type guide groove 311, so that when the guide groove 311 communicates two ports, the blocking portion 316 can block the remaining ports between the two ports communicated by the guide groove 311. Of course, in other embodiments, the shape of the guide groove 311 is not limited.

[0146] The cutting portion 314 is at least partially opposite to the guide groove 311, and specifically, the extension length of the cutting portion 314 in the circumferential direction of the movable valve plate 31 is greater than the extension length of the first guide portion 3111 in the circumferential direction of the movable valve plate 31, so that when the first guide portion 3111 communicates with the seventh port G, the cutting portion 314 can cover the part of the seventh port G communicated with the communication cavity 40, thereby avoiding the mixture of raw water when supplying soft water.

[0147] The working principle of the water softener provided by the embodiments of the present application is as follows:

[0148] When the valve stem 32 is rotated, the valve disc 31 is linked to rotate, and when the valve disc 31 moves relative to the fixed valve disc 216, the port on the fixed valve disc 216 that communicates with the water inlet groove 312 is different, and the port that the flow guide groove 311 communicates with is different, so that the multi-way valve 900 switches between the soft water supply position, the first regeneration position, the second regeneration position, the forward washing position, the backwashing position, the slow washing position, and the water supply position of the salt supply device, so as to switch the water softener between the soft water supply state, the first regeneration state, the second regeneration state, the forward washing state, the backwashing state, the slow washing state, and the water supply state of the salt supply device.

[0149] In order to facilitate the description of each state, the seventh port G is defined to include a first part G1 and a second part G2 connected to each other in the radial direction (see Figure 23 ), and the second part G2 is arranged away from the center point of the fixed valve disc 216 relative to the first part G1.

[0150] In the soft water supply state (see Figure 24 ) :

[0151] The water inlet groove 312 communicates with the eighth port H, the flow guide groove 311 communicates with the second sub-port C2 and the first part G1 of the seventh port G, and the cutoff portion 314 covers the second part G2 of the seventh port G. The sixth channel 210, the communication 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 communication cavity 40, and the seventh channel 212 is cut off.

[0152] The raw water flows through the sixth channel 210, the communication cavity 40, and the eighth channel 214 in sequence to the upper water distributor 300, the upper water distributor 300 sprays water on the resin in the resin tank 200, the calcium and magnesium ions in the raw water are exchanged with the functional ions on the resin to form soft water, and the soft water flows to the center pipe 500 through the lower water distributor 400, and the soft water flowing out of the center pipe 500 flows to the seventh channel 212 through the third channel 23 to supply soft water.

[0153] In the first regeneration state (see Figure 25 ) :

[0154] The water inlet groove 312 communicates with the fourth port D, the flow guide groove 311 communicates with the first port A and the second sub-port C2, and the drain groove 315 communicates with the eighth port H, and at this time, the second part G2 of the seventh port G communicates with the communication cavity 40. The sixth channel 210, the communication cavity 40, the fourth channel 26, the first jet channel, the first channel 21, the third channel 23, the eighth channel 214, the communication cavity 50, and the ninth channel 218 form a first regeneration channel. The raw water supply channel formed by the sixth channel 210, the communication cavity 40, and the seventh channel 212 is open.

[0155] The raw water flows through the sixth channel 210, the communication cavity 40, the fourth channel 26, the first jet channel, the first channel 21 and the third channel 23 to the central pipe 500 in sequence, flows to the lower water distributor 400 through the central pipe 500, and is sprayed into the resin in the resin tank 200 through the lower water distributor 400. The salt water passes through the ineffective resin to replace the calcium and magnesium ions in the solution, and the formed waste water after replacement flows to the upper water distributor 300, and is discharged from the upper water distributor 300 to the eighth channel 214, the drainage groove 315, the guide cavity 50 and the ninth channel 218 in sequence. At this time, since the raw water supply channel is open, the raw water can flow from the sixth channel 210 to the communication cavity 40, and be discharged from the communication cavity 40 to the seventh channel 212.

[0156] In the second regeneration state (see Figure 26 ) :

[0157] The water inlet groove 312 communicates with the fifth port E, the guide groove 311 communicates the second port B with the second sub-port C2, the drainage groove 315 communicates with the eighth port H, and the second part G2 of the seventh port G communicates with the communication cavity 40 at this time. The sixth channel 210, the communication 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 communication cavity 40 and the seventh channel 212 is open.

[0158] The raw water flows through the sixth channel 210, the communication cavity 40, the fifth channel 27, the second jet channel, the second channel 22 and the third channel 23 to the central pipe 500 in sequence, flows to the lower water distributor 400 through the central pipe 500, and is sprayed into the resin in the resin tank 200 through the lower water distributor 400. The salt water passes through the ineffective resin to replace the calcium and magnesium ions in the solution, and the formed waste water after replacement flows to the upper water distributor 300, and is discharged from the upper water distributor 300 to the eighth channel 214, the drainage groove 315, the guide cavity 50 and the ninth channel 218 in sequence. At this time, since the raw water supply channel is open, the raw water can flow from the sixth channel 210 to the communication cavity 40, and be discharged from the communication cavity 40 to the seventh channel 212.

[0159] In the slow washing state (see Figure 27 ) :

[0160] The water inlet groove 312 communicates with the fourth port D, the guide groove 311 communicates the water outlet J with the second sub-port C2, and the drainage groove 315 communicates with the eighth port H. At this time, the second part G2 of the seventh port G communicates with the communication cavity 40. The sixth channel 210, the communication cavity 40, the fourth port D, the latent channel 219, the water outlet J, the third channel 23, the eighth channel 214, the guide cavity and the ninth channel 218 form the slow washing channel. The raw water supply channel formed by the sixth channel 210, the communication cavity 40 and the seventh channel 212 is open.

[0161] The raw water flows through the sixth channel 210, the communication cavity 40, the fourth port D, the latent channel 219, the water outlet J and the third channel 23 to the central tube 500, flows to the lower water distributor 400 through the central tube 500, and flows to the upper water distributor 300 from the lower water distributor 400 through the resin layer. The raw water slowly backwashes the resin layer from the bottom to the top, carries away the broken resin and residual dirt, and flows from the upper water distributor 300 to the eighth channel 214, the drainage groove 315, the communication cavity 50 and the ninth channel 218 for discharge. At this time, since the raw water supply channel is open, the raw water can flow from the sixth channel 210 to the communication cavity 40 and be discharged from the seventh channel 212 through the communication cavity 40.

[0162] In the backwash state (see Figure 28 ) :

[0163] The water inlet groove 312 communicates with the first sub-port C1, the drainage groove 315 communicates with the eighth port H, and the second part G2 of the seventh port G communicates with the communication cavity 40. The sixth channel 210, the communication cavity 40, the third channel 23, the eighth channel 214, the communication cavity 50 and the ninth channel 218 form a backwash channel. The sixth channel 210, the communication cavity 40 and the seventh channel 212 form an open raw water supply channel.

[0164] The raw water flows through the sixth channel 210, the communication cavity 40 and the eighth channel 214, and flows to the lower water distributor 400 through the upper water distributor 300, and flows out from the lower water distributor 400 through the central tube 500. The raw water flows through the resin layer in the resin tank 200 from top to bottom. The water pressure slowly precipitates the loose resin, exchanges ions, and precipitates dirt. The wastewater flows from the central tube 500 to the third channel 23, the drainage groove 315, the communication cavity 50 and the ninth channel 218 for discharge. At this time, since the raw water supply channel is open, the raw water can flow from the sixth channel 210 to the communication cavity 40 and be discharged from the seventh channel 212 through the communication cavity 40.

[0165] In the backwash state (see Figure 29 ) :

[0166] The water inlet groove 312 communicates with the first sub-port C1, the drainage groove 315 communicates with the eighth port H, and the second part G2 of the seventh port G communicates with the communication cavity 40. The sixth channel 210, the communication cavity 40, the third channel 23, the eighth channel 214, the communication cavity 50 and the ninth channel 218 form a backwash channel. The sixth channel 210, the communication cavity 40 and the seventh channel 212 form an open raw water supply channel.

[0167] The raw water flows through the sixth channel 210, the communication cavity 40 and the third channel 23 in sequence, and flows to the lower water distributor 400 through the center tube 500, and flows out from the lower water distributor 400 to the upper water distributor 300. The raw water flows through the resin layer in the resin tank 200 from bottom to top, so that the resin is puffed to achieve the purpose of strong washing (ion exchange). The waste water flows from the upper water distributor 300 to the eighth channel 214, the guide cavity 50 and the ninth channel 218 in sequence and is discharged. At this time, since the raw water supply channel is open, the raw water can flow from the sixth channel 210 to the communication cavity 40 and be discharged through the communication cavity 40 to the seventh channel 212.

[0168] When the water replenishment state of the salt supply device is required (see Figure 30 ):

[0169] When the salt water storage in the salt supply device 700 is insufficient, raw water needs to be replenished into the salt supply device 700, and salt is added to the raw water to form sufficient saturated salt water in the salt supply device 700.

[0170] The water inlet tank 312 is communicated with the second port B, and the sixth channel 210, the communication cavity 40, the second channel 22, the second mixing channel and the salt guide channel (including the first salt guide channel and the second salt guide channel) form a water replenishment channel of the salt supply device 700. The raw water supply channel formed by the sixth channel 210, the communication cavity 40 and the seventh channel 212 is open.

[0171] The raw water flows through the sixth channel 210, the communication cavity 40, the second channel 22, the second mixing channel and the salt guide channel to the salt supply device 700 to replenish sufficient raw water to the salt supply device 700. At this time, since the raw water supply channel is open, the raw water can flow from the sixth channel 210 to the communication cavity 40 and be discharged through the communication cavity 40 to the seventh channel 212.

[0172] Specifically, the first concentration is less than the second concentration, and the water softener sequentially performs the first regeneration state and the second regeneration state.

[0173] In this way, when the functional ions in the soft water device 100 need to be regenerated, the water softener first performs the first regeneration state and then performs the second concentration regeneration state, that is, low-concentration salt water is first introduced into the soft water device 100, and then high-concentration salt water is introduced. In this way, the low concentration and the high concentration are performed in sequence, which can reduce the waste of salt solution while improving the regeneration rate of functional ions.

[0174] Specifically, the third channel 23 of the multi-way valve 900 is communicated with the first channel 21 and the second channel 22 in sequence.

[0175] Further, the slow washing state is executed after the first regeneration state and / or the second regeneration state. Specifically, after the first regeneration state, the water softener is in the slow washing state, and after the second regeneration state, the water softener is in the slow washing state again. That is, after each regeneration state, the water softener is switched to the slow washing state, so that the resin layer can be slowly washed from bottom to top, the broken resin and residual dirt can be removed, and the utilization rate of the salt solution can be improved. It should be understood that in other embodiments, when the first regeneration state and the second regeneration state are sequentially performed, the slow washing after the first regeneration state and the slow washing after the second regeneration state can also be selected not to be performed, or the slow washing after the first regeneration state and the slow washing after the second regeneration state can also be selected to be performed.

[0176] The technical features of the above-described embodiments can be combined in any manner. For the sake of brevity, not all possible combinations of the technical features in the above-described embodiments are described, but it should be understood that any combination of the technical features is within the scope of the present disclosure as long as the combination does not result in contradictions.

[0177] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, and these are within the scope of protection of the present application. Therefore, the scope of protection of the patent of the present application should be subject to the appended claims.

Claims

1. A water softener, comprising a water softening device (100) and a multi-port valve, characterized in that: The valve body assembly (20) has a first channel (21), a second channel (22) and a third channel (23) communicating with the soft water device (100); The movable valve plate (31) mounted on the valve body assembly (20) is movable relative to the valve body assembly (20) to make the third channel (23) communicate with the first channel (21) or the second channel (22); The first channel (21) is configured to provide the water softener (100) with a first concentration of salt water through the third channel (23), and the second channel (22) is configured to provide the water softener (100) with a second concentration of salt water through the third channel (23); the first concentration of salt water and the second concentration of salt water have different concentrations. The water softener also includes a salt supply device storing saturated brine and an ejector (10), the ejector (10) being located between the valve body assembly (20) and the salt supply device; The jet injector (10) has a first jet channel that is connected to the salt supply device, the raw water source and the first channel (21), and a second jet channel that is connected to the salt supply device, the raw water source and the second channel (22); the raw water provided by the raw water source and the saturated brine provided by the salt supply device are mixed in the first jet channel to form brine of the first concentration, and the raw water provided by the raw water source and the saturated brine provided by the salt supply device are mixed in the second jet channel to form brine of the second concentration; The first jet channel has a first water guiding channel (11), a first salt guiding channel, and a first mixing channel. One end of the first water guiding channel (11), the first salt guiding channel, and the first mixing channel are connected at a first junction. The other end of the first water guiding channel (11) away from the first junction is connected to the raw water source. The other end of the first salt guiding channel away from the first junction is connected to the salt supply device. The other end of the first mixing channel away from the first junction is connected to the first channel. The cross-sectional area of ​​the first water guiding channel (11) gradually decreases from the other end away from the first junction to the end closer to the first junction. The second jet channel has a second water guiding channel (12), a second salt guiding channel, and a second mixing channel. The second water guiding channel (12), the second salt guiding channel, and the second mixing channel are connected at a second intersection. The other end of the second water guiding channel (12) away from the second intersection is connected to the raw water source. The other end of the second salt guiding channel away from the second intersection is connected to the salt supply device. The other end of the second mixing channel away from the second intersection is connected to the second channel. The cross-sectional area of ​​the second water guiding channel (12) gradually decreases from the other end away from the second intersection to the end closer to the second intersection.

2. The water softener according to claim 1, characterized in that, The movable valve plate (31) is rotatably mounted on the valve body assembly (20) about an axis.

3. The water softener according to claim 1 or 2, characterized in that, The moving valve plate (31) has a guide groove (311) on its axial end face facing the valve body assembly (20); The flow guide groove (311) connects the third channel (23) to the first channel (21) or the flow guide groove (311) connects the third channel (23) to the second channel (22).

4. The water softener according to claim 1, characterized in that, The valve body assembly (20) includes a valve body (215) and a fixed valve plate (216), wherein the fixed valve plate (216) and the valve body (215) form a submerged channel (219); The movable valve plate (31) can move relative to the fixed valve plate (216) so that the third channel (23) can be selectively connected to the first channel (21), the second channel (22) and the submerged channel (219); The submerged channel (219) is configured to provide raw water to the water softener (100) for slow washing through the third channel (23), and the fixed valve plate (216) and / or the valve body (215) are provided with a groove (2163), the groove wall of the groove (2163) forming at least a portion of the channel wall of the submerged channel (219).

5. The water softener according to claim 1, characterized in that, The valve body assembly (20) has a seventh channel (212); When the third channel (23) is connected to the first channel (21), or when the third channel (23) is connected to the second channel (22), the seventh channel (212) is connected to the raw water source.

6. The water softener according to claim 5, characterized in that, The valve body assembly (20) has a sixth channel (210) that is connected to the raw water source; When the third channel (23) is connected to the first channel (21), or when the third channel (23) is connected to the second channel (22), the seventh channel (212) is connected to the sixth channel (210).

7. The water softener according to claim 5, characterized in that, The movable valve plate (31) is movable relative to the valve body assembly (20) so that the third channel (23) is selectively connected to the first channel (21), the second channel (22) and the seventh channel (212); When the third channel (23) is connected to the seventh channel (212), the moving valve plate (31) cuts off the connection between the seventh channel (212) and the raw water source.

8. The water softener according to claim 1, characterized in that, The lengths of the first water guiding channel (11) and the second water guiding channel (12) are equal; The cross-sectional area of ​​the end of the first water channel (11) away from the first confluence is equal to that of the end of the second water channel (12) away from the second confluence; the cross-sectional area of ​​the end of the first water channel (11) near the first confluence is not equal to that of the end of the second water channel (12) near the second confluence.

9. The water softener according to claim 1, characterized in that, The valve body assembly (20) has a fourth channel (26) and a fifth channel (27), the fourth channel (26) being connected to the first jet channel to supply raw water to the first jet channel, and the fifth channel (27) being connected to the second jet channel to supply raw water to the second jet channel.

10. The water softener according to claim 9, characterized in that, The valve body assembly (20) has a sixth channel (210) that is 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); 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).

11. The water softener according to claim 10, characterized in that, The 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 tank (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 tank (312) is connected to the fifth channel (27) and the sixth channel (210).

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