CN114962715A

CN114962715A - Multi-way valve and water softener

Info

Publication number: CN114962715A
Application number: CN202210663474.9A
Authority: CN
Inventors: 尹志雄; 何镜; 王云飞; 陈浩浩; 董情; 方永生
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2022-06-13
Filing date: 2022-06-13
Publication date: 2022-08-30

Abstract

The application relates to a multiple unit valve and water softener, include: the valve body assembly is provided with a first channel, a second channel and a third channel communicated with the water softening device; the movable valve plate is movably assembled on the valve body assembly and can move relative to the valve body assembly so as to enable the third channel to be communicated with the first channel or the second channel; wherein the first passage is configured to be able to provide the water softening device with brine having a first concentration through the third passage, and the second passage is configured to be able to provide the water softening device with brine having a second concentration through the third passage; the first strength brine has a different strength than the second strength brine. Compared with the arrangement that the regeneration device in the prior art can only feed the brine with one concentration into the water softener, the combination of two kinds of brine with different concentrations can improve the regeneration rate of the functional ions of the water softener, and under the condition of improving the regeneration rate, the water yield of the soft water produced by the water softener can be correspondingly improved.

Description

Multi-way valve and water softener

Technical Field

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

Background

With the development of economy and the progress of society, the requirements of people on the quality of life are higher and higher, and various water treatment equipment is applied to the life of people. Common water treatment equipment includes water softeners, water purifiers, and the like. Wherein, the water softener can be widely applied to the life of people because the water softener can remove calcium and magnesium ions in water and reduce the hardness of water quality.

The water softener comprises a resin tank, and functional ions (sodium ions) on resin in the resin tank are exchanged with calcium and magnesium ions in water, so that redundant calcium and magnesium ions in the water are adsorbed, and the aim of removing scale (calcium carbonate or magnesium carbonate) is fulfilled.

After the water softener is used for a period of time, the concentration of the functional ions in the resin is low, so that the soft water function of the water softener is poor or no longer has the soft water function, and at the moment, the functional ions in the resin can be regenerated to enable the water softener to work normally. However, in the conventional water softener, the regeneration rate of functional ions is low, so that the amount of soft water produced is still small.

Disclosure of Invention

In view of the above, it is necessary to provide a multi-way valve and a water softener capable of improving the regeneration rate of functional ions, in order to solve the problem of low regeneration rate of functional ions in the conventional water softener.

A multi-way valve for a water softener including a water softener, the multi-way valve comprising:

the valve body assembly is provided with a first channel, a second channel and a third channel communicated with the water softening device;

the movable valve plate is movably assembled on the valve body assembly and can move relative to the valve body assembly so as to enable the third channel to be communicated with the first channel or the second channel;

wherein the first passage is configured to be able to provide the water softening device with the brine having the first concentration through the third passage, and the second passage is configured to be able to provide the water softening device with the brine having the second concentration through the third passage; the first concentration of brine has a different concentration than the second concentration of brine.

In one embodiment, the movable valve plate is rotatably mounted to the valve body assembly about an axis.

In one embodiment, the axial end surface of the movable valve plate facing the valve body assembly is provided with a flow guide groove;

the diversion groove is communicated with the third channel and the first channel or communicated with the third channel and the second channel.

In one embodiment, the valve body assembly comprises a valve body and a fixed valve plate, and the fixed valve plate and the valve body form a latent channel;

the movable valve plate can move relative to the fixed valve plate so that the third channel is communicated with the first channel, the second channel and the latent channel alternatively;

wherein the latent channel is configured to be able to supply raw water to the water softening device through the third channel for slow washing.

In one embodiment, the valve body assembly has a seventh passage therein;

and when the third channel is communicated with the first channel or the second channel, the seventh channel is communicated with a raw water source.

In one embodiment, the valve body assembly is provided with a sixth channel communicated with a raw water source;

and when the third channel is communicated with the first channel or the second channel, the seventh channel is communicated with the sixth channel.

In one embodiment, the movable valve plate is movable relative to the valve body assembly to place the third passage in communication with the first passage, the second passage, and the seventh passage alternatively;

and when the third channel is communicated with the seventh channel, the movable valve plate cuts off the communication between the seventh channel and a raw water source.

A water softener comprising a water softener (100) and a multi-way valve as defined in any one of the above;

the water softener also comprises a salt supply device for storing saturated brine and an ejector, wherein the ejector is arranged between the valve body assembly and the salt supply device;

the ejector is provided with a first jet flow channel communicated with the salt supply device, the raw water source and the first channel, and a second jet flow channel communicated with the salt supply device, the raw water source and the second channel; the raw water provided by the raw water source and the saturated saline water provided by the salt supply device are mixed in the first jet flow channel to form saline water with the first concentration, and the raw water provided by the raw water source and the saturated saline water provided by the salt supply device are mixed in the second jet flow channel to form saline water with the second concentration.

In one embodiment, the first jet flow 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, one end of the first salt guide channel and one end of the first mixing channel are communicated with a first junction, the other end of the first water guide channel far away from the first junction is communicated with a raw water source, the other end of the first salt guide channel far away from the first junction is communicated with the salt supply device, and the other end of the first mixing channel far away from the first junction is communicated with the first channel; the cross-sectional area of the first water guide channel is gradually reduced from the other end far away from the first junction to the end close to the first junction;

the second jet flow channel is provided with 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 junction, the other end, far away from the second junction, of the second water guide channel is communicated with a raw water source, the other end, far away from the second junction, of the second salt guide channel is communicated with the salt supply device, and the other end, far away from the second junction, of the second mixing channel is communicated with the second channel; the cross-sectional area of the second water guide passage decreases gradually from the other end far away from the second junction to the end close to the second junction.

In one embodiment, the cross-sectional area of the other end of the first water guide channel away from the first junction is equal to the cross-sectional area of the other end of the second water guide channel away from the second junction; the cross-sectional area of one end of the first water guide channel close to the first junction is different from that of one end of the second water guide channel close to the second junction.

In one embodiment, the valve body assembly has a fourth passage communicating with the first jet passage to supply raw water to the first jet passage, and a fifth passage communicating with the second jet passage to supply raw water to the second jet passage.

In one embodiment, the valve body assembly has a sixth passage communicating with a raw water source;

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.

In one embodiment, the movable valve plate is provided with a water inlet groove;

when the third channel is communicated with the first channel, the water inlet groove is communicated with the fourth channel and the sixth channel; and when the third channel is communicated with the second channel, the water inlet groove is communicated with the fifth channel and the sixth channel.

According to the multi-way valve and the water softener, when the third channel is communicated with the first channel, the first channel provides the brine with the first concentration for the water softening device through the third channel, when the third channel is communicated with the second channel, the second channel provides the brine with the second concentration for the water softening device through the third channel, and the brine with the first concentration and the brine with the second concentration have different concentrations. Compared with the arrangement that the regeneration device in the prior art can only feed the brine with one concentration into the water softener, the combination of two kinds of brine with different concentrations can improve the regeneration rate of the functional ions of the water softener, and under the condition of improving the regeneration rate, the water yield of the soft water produced by the water softener can be correspondingly improved.

Drawings

FIG. 1 is a schematic structural diagram of a water softener according to an embodiment of the present application;

FIG. 2 is a block diagram of an ejector of the water softener shown in FIG. 1;

fig. 3 is a cross-sectional view of the plane a-a of the ejector shown in fig. 2;

FIG. 4 is a cross-sectional view taken along plane B-B of the ejector shown in FIG. 2;

fig. 5 is an exploded view of the ejector shown in fig. 2;

FIG. 6 is an isometric view of the multi-way valve of the water softener shown in FIG. 1;

FIG. 7 is an isometric view of the valve body of the multiplex valve shown in FIG. 6;

FIG. 8 is a schematic structural view of the valve body shown in FIG. 7;

FIG. 9 is an exploded view of the multiplex valve shown in FIG. 6;

FIG. 10 is an isometric view of the movable plate of the multiplex valve shown in FIG. 6;

FIG. 11 is an isometric view of the movable valve plate shown in FIG. 10 from another perspective;

FIG. 12 is a schematic plan view of the movable valve plate shown in FIG. 10;

FIG. 13 is an isometric view of the valve body shown in FIG. 7 from another perspective;

FIG. 14 is a block diagram of a fixed plate of the multiplex valve shown in FIG. 6 (the diagram shows a first flow control plane);

FIG. 15 is a block diagram of a fixed plate of the multiplex valve shown in FIG. 6 (the diagram shows a second flow control plane);

FIG. 16 is a top view of the multiplex valve shown in FIG. 6;

FIG. 17 is a cross-sectional view of the multiplex valve illustrated in FIG. 16 at plane C-C;

FIG. 18 is a cross-sectional view of the D-D surface of the multiplex valve illustrated in FIG. 16;

FIG. 19 is a plan view of the movable valve plate shown in FIG. 10 (the view shows a plane of the side of the movable valve plate facing the fixed valve plate);

FIG. 20 is a plan view of the movable valve plate shown in FIG. 10 (the view shows a plane of the movable valve plate on a side opposite to the fixed valve plate);

FIG. 21 is an isometric view of the stationary plate shown in FIG. 14;

FIG. 22 is a partial block diagram of the multiplex valve shown in FIG. 6 (a latent channel can be shown in this view);

FIG. 23 is a partial structural view of the water softener shown in FIG. 1 (in which the movable valve plate is not disposed on the fixed valve plate);

FIG. 24 is an operational schematic diagram of the water softener shown in FIG. 1 in a soft water supply state;

FIG. 25 is a schematic diagram of the water softener shown in FIG. 1 in a first regeneration state;

FIG. 26 is a schematic diagram illustrating operation of the water softener shown in FIG. 1 in a second regeneration state;

FIG. 27 is a schematic view illustrating the operation of the water softener shown in FIG. 1 in a slow washing state;

FIG. 28 is a schematic diagram illustrating the operation of the water softener shown in FIG. 1 in a forward washing state;

FIG. 29 is a schematic diagram of the water softener shown in FIG. 1 in a backwashing state;

FIG. 30 is a schematic diagram illustrating the operation of the water softener shown in FIG. 1 in a state of being replenished with water from the salt supplying device.

Description of reference numerals:

100. a water softening device:

200. a resin tank; 300. an upper water distributor; 400. a lower water distributor; 500. a central tube;

600. a reproduction device:

700. a salt supply device;

800. an integrated water path:

10. an ejector; 11. a first water guide channel; 12. a second water guide channel; 13. an ejector main body; 131. an ejector body; 132. a first water guide inlet; 133. a second water guide inlet; 134. a first salt inlet; 135. a second salt inlet; 136. a first water leading outlet; 137. a second water guide outlet; 14. a first nozzle; 15. a second nozzle; 16. a cover plate; 17. a common channel; 18. a first throat; 19. a second throat; 110. a first filter screen; 111. a second filter screen;

900. a multi-way valve:

20. a valve body assembly; 21. a first channel; 22. a second channel; 23. a third channel; 24. a first water receiving inlet; 25. a second water receiving inlet; 26. a fourth channel; 27. a fifth channel; 28. a first water receiving outlet; 29. a second water receiving outlet; 210. a sixth channel; 211. a raw water interface; 212. a seventh channel; 213. a water outlet interface; 214. an eighth channel; 215. a valve body; 2151. a valve cavity; 216. a fixed valve plate; 2161. a first flow control plane; 2162. a second flow control plane; 2163. a groove; A. a first port; B. a second port; c1, a first sub-port; c2, a second sub-port; D. a fourth port; E. a fifth port; F. a sixth port; G. a seventh port; g1, first part; g2, second part; H. an eighth port; I. a ninth port; J. a water outlet; 217. a spool nut; 218. a ninth channel; 219. a latent channel;

30. a moving valve member; 31. a movable valve plate; 311. a diversion trench; 3111. a first flow guide part; 3112. a second flow guide part; 3113. a third flow guide part; 312. putting the mixture into a water tank; 313. a sheet body; 314. a cut-off portion; 315. a water discharge tank; 3151. a first drainage tank; 3152. a second water discharge tank; 316. a blocking section; 32. a valve stem; 321. a rod body; 322. a built-in part;

40. a communicating cavity;

50. a communicating cavity.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying 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. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

In the description of the present application, it is to 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," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may 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 may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1, an embodiment of the present application provides a water softener including a water softening device 100 and a regeneration device 600 connected to each other. The water softener 100 contains functional ions (sodium ions) which can exchange with calcium and magnesium ions in the raw water to adsorb the excessive calcium and magnesium ions in the raw water, so that hard water is changed into soft water. Generally, in the sodium ion exchange process, when soft water exhibits hardness and the residual hardness exceeds the specification of the water quality standard, the sodium ion is considered to have failed. The regeneration unit 600 is capable of introducing brine (sodium chloride solution) into the water softening device 100, and the brine passes through the failed resin to replace calcium and magnesium ions in the brine into the solution, so as to complete regeneration of sodium ions in the resin, and thus the water softening device 100 recovers a water softening function.

The water softener has a soft water supply state and a non-soft water supply state, and is capable of being switched between the soft water supply state and the non-soft water supply state.

In the soft water supply state, the raw water flows into the water softener 100, and functional ions (sodium ions) contained in the water softener 100 exchange with calcium and magnesium ions in the raw water to adsorb the excessive calcium and magnesium ions in the water, so that the hard water is changed into soft water and is discharged for users to use. It should be noted that, when the water softener is in the soft water supply state, the water softener may not supply raw water, and when the water softener is in the non-soft water supply state, the water softener may supply raw water, 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 water softener from being cut off and causing poor experience to users.

Specifically, the regeneration device 600 has a soft water supply passage and a raw water supply passage. When the water softener is in a soft water supply state, the soft water supply passage is opened, the raw water supply passage is cut off, the water softener 100 is communicated with a raw water source through the soft water supply passage, and the raw water flows into the water softener 100 through the soft water supply passage. Functional ions (sodium ions) contained in the water softener 100 exchange with calcium and magnesium ions in the raw water to adsorb excessive calcium and magnesium ions in the water, so that hard water is changed into soft water, and the soft water is discharged through a soft water supply channel for users to use. Since the raw water supply passage is cut off, the water softener cannot supply raw water while supplying soft water.

When the water softener is in the non-soft water supply state, the soft water supply channel cuts, and the raw water supply channel switches on, and under the condition that the water softener no longer supplies soft water, the water softener can supply the raw water, and guarantees that the water softener does not cut off, improves user experience.

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 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 both 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 a soft water supply state, raw water firstly flows into the upper water distributor 300 through the soft water supply channel, the upper water distributor 300 sprays water into the resin of the resin tank 200, calcium and magnesium ions in the raw water exchange with functional ions on the resin to form soft water, the soft water flows to the central pipe 500 through the lower water distributor 400, and the soft water flowing out of the central pipe 500 flows out through the soft water supply channel on the regeneration device 600 for a user to use.

In one embodiment, the non-soft water supply state includes a regeneration state in which the regeneration device 600 can supply brine (sodium chloride solution) into the water softening device 100, and the brine passes through the failed resin to replace calcium and magnesium ions in the brine into the solution, thereby completing the regeneration of the sodium ions in the resin and restoring the water softening function of the water softening device 100.

The regeneration state includes a first regeneration state and a second regeneration state, and when the water softener is in the first regeneration state, the regeneration device 600 provides the water softener 100 with brine having a first concentration, defined as first brine, which passes through the failed resin to replace calcium and magnesium ions therein into solution, thereby completing the regeneration of sodium ions in the resin. In the second regeneration state, the regeneration apparatus 600 supplies the water softening apparatus 100 with brine having a second concentration, defined as a second brine, which passes through the spent resin to replace calcium and magnesium ions therein into solution, thereby completing the regeneration of sodium ions in the resin. The brine of the first concentration and the brine of the second concentration have different concentrations, namely the first concentration and the second concentration are different.

The application provides a water softener, when first regeneration state and second regeneration state, the concentration of the first salt solution that lets in water softener 100 is unequal with the concentration of second salt solution, can only let in the setting of the salt solution of a concentration to water softener 100 for regenerating unit 600 among the prior art, and the salt water phase combination of two kinds of different concentrations can improve the regeneration rate of the functional ion of water softener, and under the condition that the regeneration rate improves, correspondingly, the water yield that water softener produced the soft water can obtain improving.

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 both flow to the lower water distributor 400 through the central pipe 500 and are sprayed into the resin in the resin tank 200 through the lower water distributor 400, the brine passes through the failed resin to displace calcium and magnesium ions in the brine into a solution, and the displaced solution flows to the upper water distributor 300 and enters the regeneration device 600 from the upper water distributor 300 to be discharged.

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 passage is communicated with the central pipe 500, and the first regeneration passage supplies the first brine to the water softening device 100, while the second regeneration passage is intercepted. When the water softener is in the second regeneration state, the second regeneration passage is communicated with the central pipe 500, and the second regeneration passage supplies the second brine to the water softening device 100, and at this time, the first regeneration passage is intercepted. It should be understood that in other embodiments, the regeneration device 600 may be provided with only one regeneration passage, and when the first brine needs to be introduced, the first brine is introduced into the water softening device 100 through the first regeneration passage, and when the second brine needs to be introduced, the second brine is introduced into the water softening device 100 through the second regeneration passage.

The regeneration device 600 also has a forward wash channel and a reverse wash 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 communicated, and raw water cleans the water softener 100 from top to bottom 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, and in this state, the raw water flows through the resin bed in the resin tank 200 from top to bottom, and the water pressure slowly deposits fluffy resin, exchanges ions, and simultaneously separates out dirt. When the water softener is in a backwashing state, the backwashing channel is communicated, and raw water is washed on the water softener 100 from top to bottom through the backwashing channel. That is, the raw water flows to the lower water distributor 400 through the central pipe 500, and flows from the lower water distributor 400 to the upper water distributor 300. In this state, the raw water flows through the resin layer in the resin tank 200 from bottom to top, and the resin is fluffed to achieve the purpose of strong washing (ion exchange).

The regeneration device 600 includes a salt supply device 700 and an integrated water path 800, and the integrated water path 800 is disposed between the salt supply device 700 and the water softening device 100. The salt supply device 700 stores saturated brine, and the soft water supply passage, the raw water supply passage, the first regeneration passage, the second regeneration passage, the forward washing passage and the reverse washing passage are all disposed on the integrated water path 800 and are all communicated with a raw water source. When the water softener is in the soft water supply state, the soft water supply passage is opened, the raw water flowing out of the raw water source can flow into the water softener 100 through the soft water supply passage, and the soft water softened by the water softener 100 can flow out through the soft water supply passage for use by a user. When the water softener is in the first regeneration state, the first regeneration passage is conducted, 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 passage to form the first brine, and the first brine is supplied to the water softener 100 through the first regeneration passage. When the water softener is in the second regeneration state, the second regeneration passage 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 passage to form the second brine, and the second brine is supplied to the water softener 100 through the second regeneration passage.

Referring to fig. 2 and 3, the first regeneration channel includes 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, one end of the first salt guide channel, and one end of the first mixing channel are communicated with a first junction, the other end of the first water guide channel away from the first junction is communicated with a raw water source, the other end of the first salt guide channel away from the first junction is communicated with a salt supply device 700, and the other end of the first mixing channel away from the first junction is communicated with the soft water device 100. The cross-sectional area of the first water guide passage 11 decreases gradually from the other end away from the first junction to the end near the first junction.

Thus, when the raw water flows through the first water guide channel 11, since the cross-sectional area of the first water guide channel 11 decreases gradually from the other end far away from the first junction to the end near the first junction, when the raw water flows from the end far away from the first mixing channel to the end near the first mixing channel through the first water guide channel 11, the flow rate of the raw water increases gradually to form a first negative pressure, and under the action of the first negative pressure, the saturated saline in the salt supply device 700 flows into the first mixing channel through the first salt guide channel, the raw water and the saturated saline are mixed in the first mixing channel to form a first saline with a first concentration, and the first saline flows into the soft water device 100 through the first mixing channel.

Referring to fig. 4, the second regeneration channel includes 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 junction, the other end of the second water guide channel 12, which is far away from the second junction, is communicated with the raw water source, the other end of the second salt guide channel, which is far away from the second junction, is communicated with the salt supply device, and the other end of the second mixing channel, which is far away from the second junction, is communicated with the second channel. The cross-sectional area of the second water guide passage 12 decreases gradually from the other end away from the second junction to the end near the second junction.

In this way, when the raw water flows through the second water guide channel 12, since the cross-sectional area of the second water guide channel 12 decreases gradually from the other end far away from the second junction to the end near the second junction, when the raw water flows from the end far away from the second mixing channel to the end near the second mixing channel from the second water guide channel 12, the flow rate of the raw water increases gradually to form a second negative pressure, and under the action of the second negative pressure, the saturated saline in the salt supply device 700 flows into the second mixing channel through the second salt guide channel, the raw water and the saturated saline are mixed in the second mixing channel to form second saline with a second concentration, and the second saline flows into the soft water device 100 through the second mixing channel.

Further, the lengths of the first water guide channel 11 and the second water guide channel 12 are equal, the cross-sectional area of the end of the first water guide channel 11 far away from the first junction is equal to the cross-sectional area of the end of the second water guide channel 12 far away from the second junction, and the cross-sectional area of the end of the first water guide channel 11 close to the first junction is different from the cross-sectional area of the end of the second water guide channel 12 close to the second junction. Thus, the first negative pressure and the second negative pressure are ensured to be different, and the first concentration of the finally formed first saline water and the second concentration of the second saline water are ensured to be different.

It should be understood that in other embodiments, the first concentration and the second concentration may be different through other arrangements, which are not limited herein.

In a specific embodiment, the cross-sectional area of the end of the first water guiding channel 11 close to the first junction is larger than the cross-sectional area of the end of the second water guiding channel 12 close to the second junction, so that the first negative pressure is smaller than the second negative pressure, at this time, the saturated saline water flowing into the first mixing channel is more in the first salt guiding channel, and the saturated saline water flowing into the second mixing channel is less in the second salt guiding channel, so that the first concentration is smaller than the second concentration.

With continued reference to fig. 1, the integrated waterway 800 includes the ejector 10 and the multi-way valve 900, and the multi-way valve 900 is disposed between the ejector 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 all arranged on the ejector 10. That is, the first water guide channel 11, the first salt guide channel and the first mixing channel are all formed on the ejector 10, and the first water guide channel 11, the first salt guide channel and the first mixing channel form a first jet flow channel together. The second water guide channel 12, the second salt guide channel and the second mixing channel are formed on the ejector 10, and the second water guide channel 12, the second salt guide channel and the second mixing channel form a second jet flow channel together.

In one embodiment, referring to fig. 5, the ejector 10 includes an ejector body 13, a first nozzle 14, a second nozzle 15, and a cover plate 16, wherein the first nozzle 14 and the second nozzle 15 are both mounted in the ejector body 13, and the cover plate 16 covers the ejector 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 both formed on the ejector main body 13, and the ejector main body 13 and the cover plate 16 together form a first mixing channel and a second mixing channel. Therefore, 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 are convenient to form.

The ejector main body 13 includes an ejector body 131, and a first water inlet 132, a second water inlet 133, a first salt inlet 134, a second salt inlet 135, a second water outlet 137, and a second water outlet 137, which are all connected to the ejector body 131. The first water guide inlet 132 and the second water guide inlet 133 are both communicated with a raw water source, the first salt guide inlet 134 and the second salt guide inlet 135 are both connected with the salt supply device 700, and the first water guide outlet 136 and the second water guide outlet 137 are both connected with the multi-way valve 900. The first nozzle 14 is disposed in the first water inlet 132, the second nozzle 15 is disposed in the second water inlet 133, the first salt introduction passage is formed in the first salt introduction inlet 134, and the second salt introduction passage is formed in the second salt introduction inlet 135. The first mixing channel and the second mixing channel have a common channel 17 to simplify the arrangement of the channels, and specifically, the cover plate 16 covers the ejector body 131, the two form the common channel 17, the other part of the first mixing channel is formed in the first water outlet 136, and the other part of the second mixing channel is formed in the second water outlet 137.

The ejector 10 further includes a first throat 18 and a second throat 19, the first throat 18 is at least partially disposed in the first water inlet 132 and spaced apart from the first nozzle 14, and the second throat 19 is at least partially disposed in the second water inlet 133 and spaced apart from the second nozzle 15. Thus, a first siphon is formed between the first nozzle 14 and the first throat 18 to draw the saturated brine into the region for mixing under the first negative pressure to form the first brine. At the same time, a second siphon zone is formed between the second nozzle 15 and the second throat 19 so that the saturated brine is drawn into the zone to be mixed under the action of the second negative pressure, and the second brine is formed.

The ejector 10 further includes a first screen 110, and the first screen 110 is disposed in the first water outlet 136 to filter impurities in the first brine to ensure cleanliness of the first brine flowing to the multi-way valve 900. The ejector 10 further includes a second filter screen 111, and the second filter screen 111 is disposed in the second water outlet 137 to filter impurities in the second brine to ensure cleanliness of the second brine flowing to the multi-way valve 900.

Referring to fig. 6, the multi-way valve 900 includes a valve body assembly 20 and a movable valve plate assembly 30, the valve body assembly 20 is assembled on the resin tank 200, the upper water distributor 300 and one end of the central pipe 500, which is not connected to the lower water distributor 400, are both connected to the valve body assembly 20, and the movable valve plate assembly 30 is movably disposed on the valve body assembly 20 to switch the water softener between the soft water supply state and the non-soft water supply state.

Referring to fig. 7 and 8, 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 communicated with the first mixing channel, the second channel 22 is communicated with the second mixing channel, the third channel 23 is communicated with the water softening device 100, and specifically, the third channel 23 is communicated with the end of the central pipe 500 which is not connected with the lower water distributor 400.

Specifically, the valve body assembly 20 has a first water receiving inlet 24 and a second water receiving inlet 25, a portion of the first channel 21 is formed in the first water receiving inlet 24 or the first channel 21 is communicated with the first water receiving inlet 24, a portion of the second channel 22 is formed in the second water receiving inlet 25 or the second channel 22 is communicated with the second water receiving inlet 25, the first water receiving inlet 24 is connected with the first water guide outlet 136 of the ejector 10, and the second water receiving inlet 25 is connected with the second water guide outlet 137 of the ejector 10. In this way, communication of the first channel 21 with the first mixing channel and communication of the second channel 22 with the second mixing channel is facilitated.

The movable valve plate assembly 30 includes a movable valve plate 31, and the movable valve plate 31 can move relative to the valve body assembly 20 to enable the third channel 23 to be communicated with the first channel 21 or the second channel 22. Wherein the first channel 21 is configured to be able to provide a first brine having a first concentration to the central tube 500 through the third channel 23, and the second channel 22 is configured to be able to provide a second brine having a second concentration to the central tube 500 through the third channel 23.

With the above arrangement, when the water softener needs to be switched from the second regeneration state to the first regeneration state, the movable valve plate 31 moves relative to the valve body assembly 20, the third channel 23 is communicated with the first channel 21, the first brine flowing out of the first mixing channel can enter the third channel 23 through the first channel 21, flow to the central pipe 500 through the third channel 23, flow to the lower water distributor 400 from the central pipe 500, and flow to the resin in the resin tank 200 through the lower water distributor 400, so as to regenerate functional ions. When the water softener needs to be switched from the first regeneration state to the second regeneration state, the movable valve plate 31 moves relative to the valve body assembly 20 again, the third channel 23 is communicated with the second channel 22, the second brine flowing out of the second mixing channel can enter the third channel 23 through the second channel 22, flow to the central pipe 500 through the third channel 23, flow to the lower water distributor 400 from the central pipe 500, and flow to the resin in the resin tank 200 through the lower water distributor 400 to regenerate functional ions.

It should be emphasized that the first channel 21 and the third channel 23 are both part of a first regeneration channel, and the second channel 22 and the third channel 23 are both part of a second regeneration channel.

Specifically, the movable valve plate assembly 30 is rotatably assembled to 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 fitted to the valve body assembly 20 about the axis to switch the water softener between the soft water supply state and the non-soft water supply state. Of course, in other embodiments, the movable valve plate 31 may be movably connected to the valve body assembly 20 by other moving manners as long as the water softener can be switched between the soft water supply state and the non-soft water supply state.

Referring to fig. 10, the axial end surface of the movable valve plate 31 facing the valve body assembly 20 is provided with a diversion trench 311. The guide groove 311 communicates the first passage 21 with the third passage 23 when the water softener is in the first regeneration state, and the guide groove 311 communicates the first passage 21 with the second passage 22 when the water softener is in the second regeneration state.

With continued reference to fig. 7 and 8, the valve body assembly 20 has a fourth channel 26 and a fifth channel 27, the fourth channel 26 is communicated with the first water channel 11, and the fifth channel 27 is communicated with the second water channel 12. The raw water flows into the first water guide passage 11 through the fourth passage 26 and flows into the second water guide passage 12 through the fifth passage 27. In this way, the passage for introducing the raw water to the ejector 10 is provided in the valve body assembly 20, and the structure of the integrated waterway 800 is simplified.

The valve body assembly 20 has a first water receiving outlet 28 and a second water receiving outlet 29, a portion of the fourth channel 26 is disposed in the first water receiving outlet 28 or the fourth channel 26 is communicated with the first water receiving outlet 28, and a portion of the fifth channel 27 is disposed in the second water receiving outlet 29 or the fifth channel 27 is communicated with the second water receiving outlet 29. The first water receiving outlet 28 is connected to the first water guide inlet 132 of the ejector 10 so that the fourth passage 26 communicates with the first water guide passage 11, and the second water receiving outlet 29 is connected to the second water guide inlet 133 of the ejector 10 so that the fifth passage 27 communicates with the second water guide passage 12.

The valve body assembly 20 has a sixth passage 210 (water inlet passage) directly communicating with the source of raw water, and when the third passage 23 communicates with the first passage 21, the fourth passage 26 communicates with the sixth passage 210, and raw water flows to the fourth passage 26 through the sixth passage 210 and from the fourth passage 26 into the first water guide passage 11. When the third passage 23 communicates with the second passage 22, the fifth passage 27 communicates with the sixth passage 210, and the raw water flows to the fifth passage 27 through the sixth passage 210 and flows from the fifth passage 27 into the second water guide passage 12. In this way, the integrated water passage 800 can be further simplified by providing the valve body assembly 20 with a passage through which the raw water is directly introduced.

The valve body assembly 20 has a raw water port 211, the raw water port 211 is connected to a raw water source, a part of the sixth channel 210 is disposed in the raw water port 211 or the sixth channel 210 is communicated with the raw water source through the raw water port 211.

Here, the sixth channel 210 and the fourth channel 26 are part of a first regeneration channel, and the sixth channel 210 and the fifth channel 27 are part of a second regeneration channel.

Further, referring to fig. 11 and 12, the movable valve plate 31 is provided with a water inlet groove 312, when the third channel 23 communicates with the first channel 21, the water inlet groove 312 communicates with the fourth channel 26 and the sixth channel 210, and when the third channel 23 communicates with the second channel 22, the water inlet groove 312 communicates with the fifth channel 27 and the sixth channel 210.

With continued reference to fig. 7 and 8, the valve body assembly 20 has a seventh passage 212 (water outlet passage), when the water softener is in the first regeneration state and the second regeneration state, i.e., the third passage 23 is communicated with the first passage 21, or the third passage 23 is communicated with the second passage 22, the seventh passage 212 is communicated with the sixth passage 210, i.e., the water outlet passage is communicated with the water inlet passage, and at this time, the water softener can supply raw water to realize non-stop flow.

The valve body assembly 20 has a water outlet port 213, the water outlet port 213 is connected to an external water outlet pipe, and a part of the seventh channel 212 is disposed in the water outlet port 213 or the seventh channel 212 is communicated with the external water outlet pipe through the water outlet port 213.

The valve body assembly 20 further has an eighth passage 214, and the eighth passage 214 is connected to the upper water distributor 300 in the resin tank 200. When the water softener is in a soft water supply state, the water inlet groove 312 communicates the sixth passage 210 with the eighth passage 214, the third passage 23 communicates with the seventh passage 212, and the seventh passage 212 is blocked from the sixth passage 210. At this time, the raw water flows from the raw water source to the sixth channel 210, flows from the sixth channel 210 to the eighth channel 214, and flows to the upper water distributor 300 through the eighth channel 214, the upper water distributor 300 uniformly distributes the raw water in the resin tank 200, calcium and magnesium ions in the raw water are exchanged with sodium ions in the resin and separated out to become soft water, and the soft water flows to the central pipe 500 through the lower water distributor 400, flows to the third channel 23 from the central pipe 500, and finally flows into the seventh channel 212 to be supplied with the soft water. At this time, since the seventh passage 212 is cut off from the sixth passage 210, the seventh passage 212 does not supply raw water, that is, the water softener does not supply raw water when supplying soft water.

With reference to fig. 9, the valve assembly 20 includes the valve body 215 and the fixed valve plate 216, the valve body 215 has a valve cavity 2151 (see fig. 13), the fixed valve plate 216 is disposed in the valve cavity 2151, and the first to eighth passages 21 to 214 are all disposed on the valve body 215 and the fixed valve plate 216. That is, a portion of the first to eighth passages 21 to 214 is formed on the valve body 215, and the remaining portion is formed on the stationary plate 216. Specifically, the first water receiving inlet 24, the second water receiving inlet 25, the first water receiving outlet 28, the second water receiving outlet 29, the raw water connector 211, and the water outlet connector 213 are all disposed on the valve body 215.

It should be understood that, in other embodiments, the fixed valve plate 216 may be omitted from the valve body assembly 20, and in this case, the first to eighth passages 21 to 214 are formed on the valve body 215, which is not limited herein.

The valve body 215 has an opening communicated between the outside and the valve chamber 2151, and the fixed valve plate 216 is disposed on the bottom wall of the valve chamber 2151 opposite to the opening of the valve chamber 2151. Specifically, referring to fig. 14 and 15, the fixed valve plate 216 has a first flow control plane 2161 and a second flow control plane 2162, the first flow control plane 2161 is axially opposite to the second flow control plane 2162, and the first flow control plane 2161 of the fixed valve plate 216 abuts against the bottom wall of the valve chamber 2151. Referring to fig. 16-18, the valve body assembly 20 further includes a valve core nut 217, the valve core nut 217 is disposed in the valve cavity 2151, the valve core nut 217, the fixed valve plate 216 and the valve body 215 form an assembly cavity, the movable valve plate assembly 30 further includes a valve rod 32, the movable valve plate 31 is disposed in the assembly cavity and is axially abutted against the second flow control plane 2162 of the fixed valve plate 216, and the diversion trench 311 is disposed on an end surface of the movable valve plate 31 facing the fixed valve plate 216.

The valve rod 32 is arranged in the valve core nut 217 in a penetrating way and is connected with the movable valve plate 31. The valve stem 32 can rotate around its axis relative to the valve core nut 217 to move the movable valve plate 31, so that the water softener can be switched between the soft water supply state and the non-soft water supply state.

The valve body assembly 20 and the movable valve plate assembly 30 form a communication chamber 40, and the communication chamber 40 communicates the water inlet groove 312 of the movable valve plate 31 with the sixth channel 210. That is, the water inlet groove 312 communicates with the sixth passage 210 through the communication chamber 40. The water inlet groove 312 is opened at an edge of the movable valve plate 31 (see fig. 19) so as to communicate with the communication chamber 40. The sixth passage 210, the communication chamber 40, and the seventh passage 212 collectively form a raw water supply passage.

Referring to fig. 19 and 20, the movable valve plate 31 includes a plate body 313 and a cut-off portion 314 radially extending outside the plate body 313, and the guiding groove 311 and the water inlet groove 312 are both disposed on the plate body 313. The water inlet groove 312 is provided at a radial edge of the sheet body 313 so that water communicating with the chamber 40 flows toward the water inlet groove 312. Specifically, the water inlet groove 312 is a blind groove opened on an axial end surface of the sheet body 313 facing the stationary blade 216, that is, the water inlet groove 312 does not axially penetrate through the sheet body 313. The width of the water inlet groove 312 gradually increases from one end near the center of the sheet 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.

The cutoff portion 314 cuts off the communication of the raw water supply passage when the water softener is in the soft water supply state, and specifically, the cutoff portion 314 cuts off the communication of the seventh passage 212 with the communication chamber 40 when the water softener is in the soft water supply state, so that the raw water will not flow to the seventh passage 212 when flowing from the sixth passage 210 to the communication chamber 40. The cut-off portion 314 allows the raw water supply passage to be conductive when the water softener is in the non-soft water supply state, and specifically, the cut-off portion 314 allows the seventh passage 212 to communicate with the communication chamber 40 when the water softener is in the non-soft water supply state, so that the raw water can flow out from the communication chamber 40 to the seventh passage 212 to achieve non-flow-cutoff when the raw water flows from the sixth passage 210 to the communication chamber 40.

Referring to fig. 21, each of the first to eighth passages 21 to 214 has a port formed on the second flow control plane 2162 of the fixed valve plate 216.

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 arranged, and at this time, eight ports are also arranged on the valve body 215, and the eight ports are respectively opposite to the first port a to the eighth port H. Specifically, the eight ports are equal in size to the first to eighth ports a to H. It should be understood that in other embodiments, the sizes of the eight ports and the first port a to the eighth port H may be different, and are not limited herein.

Further, the third port comprises a first sub-port C1 and a second sub-port C2 which are arranged at intervals. In the circumferential direction of the fixed valve plate 216, a first port a, a second port B, an eighth port H, a first sub-port C1, a fourth port D, a fifth port E, a seventh port G, and a second sub-port C2 are sequentially arranged at intervals. The sixth port F is provided at the periphery of the fixed valve plate 216, and is opposed to the first port a and the second port B in the radial direction of the fixed valve plate 216.

In one embodiment, with continued reference to fig. 7, the valve body assembly 20 has a ninth passage 218 (drain passage), specifically, the ninth passage 218 is opened on the valve body 215, the valve body 215 is provided with a drain port connected to an external drain pipe, a portion of the ninth passage 218 is provided in the drain port or the ninth passage 218 is communicated with the external drain pipe through the drain port.

With reference to fig. 10, the sheet 313 of the movable valve plate 31 is provided with a water discharge slot 315, and when the water softener is in the first regeneration state and the second regeneration state, the water discharge slot 315 communicates the eighth channel 214 and the ninth channel 218. The wastewater discharged from the water softening device 100 flows to the drain tank 315 through the eighth passage 214, and flows to the ninth passage 218 through the drain tank 315 to be discharged. Specifically, the ninth passage 218 has a ninth port I opened on the inner wall of the valve body 215, and the drain groove 315 communicates the eighth port H with the ninth port I.

The valve stem 32 and the insert nut 217 form a communication chamber 50 (see fig. 18), and the communication chamber 50 communicates with the drain channel 315 and the ninth passage 218. The valve stem 32 includes a stem 321 and an embedded part 322 (see fig. 17), the stem 321 is connected to the movable valve plate 31, the embedded part 322 is disposed in the stem 321, and the stem 321, the embedded part 322 and the valve core nut 217 form a communicating cavity 50. The water drainage groove 315 includes a first water drainage groove 3151 and a second water drainage groove 3152 (see fig. 10) that are communicated with each other, the first water drainage groove 3151 axially penetrates the center position of the movable valve plate 31, one end of the second water drainage groove 3152 is communicated with the first water drainage groove 3151, the other end extends in the radial direction of the sheet body 313, and the second water drainage groove 3152 is not axially penetrated the movable valve plate 31, but is disposed on the axial end surface of the movable valve plate 31 facing the fixed valve plate 216.

The non-soft water supply state further includes a slow washing state in which the regeneration unit 600 supplies raw water to the water softening unit 100 for slow washing when the water softener is in the slow washing state. Specifically, the speed at which the regeneration device 600 supplies the raw water to the water softening device 100 is less than the speed at which the regeneration device 600 supplies the brine to the water softening device 100 when the water softening machine is in the first and second regeneration states. Thus, when the water softener is switched to the slow washing state after the first regeneration state, the regeneration unit 600 can supply the water softener 100 with raw water having a relatively low speed, and when the water softener is switched to the slow washing state after the second regeneration state, the regeneration unit 600 can supply the water softener 100 with raw water having a relatively low speed. The regeneration state is combined with the slow washing state (the salt solution which is not utilized in the regeneration state can flow during the slow washing, and can be utilized for the second time during the flowing process, so that the utilization rate of the salt solution is improved), and the utilization rate of the salt solution can be improved.

Referring to fig. 22 and 23, the fixed valve plate 216 and the valve body 215 form a latent channel 219 for slow washing, and the fixed valve plate 216 is provided with a water inlet and a water outlet J which are both communicated with the latent channel 219. When the water softener 100 needs to be washed slowly, the water inlet groove 312 is communicated with the water inlet, raw water flows to the communication cavity 40 through the sixth channel 210, flows to the water inlet groove 312 from the communication cavity 40 to enter the water inlet, flows to the latent channel 219 from the water inlet, flows to the water outlet J from the latent channel 219, and flows to the water softener 100 through the water outlet J to be washed slowly. Thus, an additional pipe for slowly washing the water softener 100 is avoided, and the structure of the water softener is simplified.

In one embodiment, the first flow control plane 2161 of the fixed valve plate 216 is formed with a recess 2163 (see fig. 14), the wall of the recess 2163 and the valve body 215 form a latent channel 219, and the water inlet and the water outlet J are respectively disposed at two ends of the recess 2163 in the extending direction of the recess 2163. In another embodiment, the surface of the valve body 215 facing the fixed valve plate 216 is formed with a groove 2163, and the groove wall of the groove 2163 and the second flow control plane 2162 of the fixed valve plate 216 form a latent channel 219. In another embodiment, the mutually facing surfaces of the stationary plate 216 and the valve body 215 are both provided with grooves 2163, and the groove walls of the two grooves 2163 form a latent channel 219.

The water inlet and the fourth opening D are the same opening, so as to further simplify the structure of the water softener. In the extending direction of the latent channel 219, the water inlet and the water outlet J are respectively arranged at two ends of the latent channel 219. So, when latent formula passageway 219 extends along the straight line, and the water inlet is the same mouthful with fourth mouth D, delivery port J lies in between first mouth A and the second mouth B on the circumference of fixed valve piece 216, so that when the water softener was in the state of washing slowly, the guiding gutter switched on delivery port J with second sub-mouth C2, so that raw water flowed to second sub-mouth C2 from delivery port J in order to flow to the soft water device 100 through third passageway 23, in order to wash the resin layer from following upwards.

A connecting line of the water inlet and the central point of the fixed valve plate 216 is defined as a first connecting line, a connecting line of the water outlet J and the central point of the fixed valve plate 216 is defined as a second connecting line, and an included angle formed between the first connecting line and the second connecting line is larger than 90 degrees and smaller than 180 degrees. So, can make water inlet and delivery port J great at the ascending interval in the circumference of fixed valve piece 216 to arrange on fixed valve piece 216 in other each mouthful, thereby guarantee that each state of water softener can not mutual interference.

The guiding groove 311 is spaced from the central point of the movable valve plate 31, so that the position of the guiding groove 311 on the movable valve plate 31 corresponds to the position of each port on the fixed valve plate 216, and the guiding groove 311 is convenient to communicate two ports of the plurality of ports. With reference to fig. 10, the guide slot 311 includes a first guide portion 3111, a second guide portion 3112 and a third guide portion 3113 sequentially connected in the circumferential direction of the sheet 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. So configured, when the guiding groove 311 communicates two ports, the blocking part 316 can block the remaining ports between the two ports communicated by the guiding groove 311, so that the water softener can normally operate between various states.

If the diversion trench 311 connects the second sub-port C2 and the second sub-port B, the blocking portion 316 can cover the first port a and the water outlet J to prevent the first port a from being connected to the second sub-port C2 or the second port B, and to prevent the water outlet J from being connected to the second sub-port C2 or the second port B. When the diversion trench 311 connects the second sub-port C2 with the water outlet J, the blocking portion 316 can cover the first port a to prevent the first port a from being connected with the second sub-port C2 or the water outlet J.

Specifically, the blocking portion 316 is located outside the second flow guide portion 3112 in the radial direction of the sheet body 313. It should be understood that, in other embodiments, the blocking portion 316 may be disposed on the inner side of the second flow guide portion 3112 in the radial direction of the sheet body 313, which is also not limited herein.

The outer contour of the guiding groove 311 is located in a virtual sector, and at this time, the guiding groove 311 forms a "door" shaped guiding groove 311, so that when the guiding groove 311 communicates two ports, the blocking portion 316 can block the rest of the ports between the two ports communicated by the guiding groove 311. Of course, in other embodiments, the shape of flow guide slot 311 is not limited.

The cut-off portion 314 is at least partially opposite to the guide groove 311, and specifically, an extension length of the cut-off portion 314 in the circumferential direction of the movable valve plate 31 is greater than an 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 is communicated with the seventh port G, the cut-off portion 314 can cover a portion where the seventh port G is communicated with the communication chamber 40, thereby preventing raw water from being mixed when soft water is supplied.

The working principle of the water softener provided by the embodiment of the application is as follows:

the valve rod 32 rotates, the movable valve plate 31 is linked, when the movable valve plate 31 moves relative to the fixed valve plate 216, the ports of the fixed valve plate 216, which are communicated with the water inlet groove 312, are different, and the ports of the guide groove 311, which are communicated with each other, are different, so that the multi-way valve 900 is switched among the soft water supply station, the first regeneration station, the second regeneration station, the forward washing station, the backwashing station, the slow washing station and the salt supply device water replenishing station, and accordingly, the water softener is switched among 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 salt supply device water replenishing state.

To facilitate the explanation of the respective states, it is defined that the seventh port G includes a first portion G1 and a second portion G2 (see fig. 23) connected to each other in the radial direction, and the second portion G2 is disposed apart from the center point of the fixed valve plate 216 with respect to the first portion G1.

In the soft water supply state (see fig. 24):

the water inlet groove 312 communicates with the eighth port H, the guide groove 311 communicates with the second sub-port C2 and the first portion G1 of the seventh port G, and the blocking portion 314 covers the second portion G2 of the seventh port G. The sixth passage 210, the communication chamber 40, the eighth passage 214, the third passage 23, and the seventh passage 212 form a soft water supply passage. The raw water supply passage formed by the sixth passage 210, the communication chamber 40, and the seventh passage 212 is blocked.

The raw water sequentially flows through the sixth channel 210, the communicating chamber 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, calcium and magnesium ions in the raw water are exchanged with functional ions on the resin to form soft water, the soft water flows to the central pipe 500 through the lower water distributor 400, and the soft water flowing out of the central pipe 500 flows to the seventh channel 212 through the third channel 23 to supply the soft water.

In the first regeneration state (see fig. 25):

the water inlet groove 312 communicates with the fourth port D, the 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, at which time the second portion G2 of the seventh port G communicates with the communication chamber 40. The sixth channel 210, the communication chamber 40, the fourth channel 26, the first fluidic channel, the first channel 21, the third channel 23, the eighth channel 214, the communicating chamber 50, and the ninth channel 218 form a first regeneration channel. The raw water supply passage formed by the sixth passage 210, the communication chamber 40, and the seventh passage 212 is communicated.

The raw water flows through the sixth channel 210, the communication chamber 40, the fourth channel 26, the first jet flow 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 in the resin tank 200 through the lower water distributor 400, the saline water is displaced into the solution by the ineffective resin, the waste water formed after displacement flows to the upper water distributor 300, and flows from the upper water distributor 300 to the eighth channel 214, the drainage groove 315, the communication chamber 50 and the ninth channel 218 in sequence to be discharged. At this time, since the raw water supply passage is turned on, the raw water can be discharged from the sixth passage 210 to the communication chamber 40, and through the communication chamber 40 to the seventh passage 212.

In the second regeneration state (see fig. 26):

the water inlet groove 312 communicates with the fifth port E, the guide groove 311 communicates with the second port B and the second sub-port C2, the drain groove 315 communicates with the eighth port H, and at this time, the second portion G2 of the seventh port G communicates with the communication chamber 40. 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 diversion cavity, and the ninth channel 218 form a second regeneration channel. The raw water supply passage formed by the sixth passage 210, the communication chamber 40, and the seventh passage 212 is opened.

The raw water flows through the sixth channel 210, the communication chamber 40, the fifth channel 27, the second jet channel, the second channel 22 and the third channel 23 to the central tube 500 in sequence, flows to the lower water distributor 400 through the central tube 500, and is sprayed in the resin of the resin tank 200 through the lower water distributor 400, the brine passes through the ineffective resin to displace calcium and magnesium ions in the brine into the solution, and the wastewater formed after the displacement flows to the upper water distributor 300 and flows from the upper water distributor 300 to the eighth channel 214, the drainage groove 315, the communication chamber 50 and the ninth channel 218 in sequence to be discharged. At this time, since the raw water supply passage is turned on, the raw water can be discharged from the sixth passage 210 to the communication chamber 40, and through the communication chamber 40 to the seventh passage 212.

In the slow wash state (see fig. 27):

the water inlet tank 312 is communicated with the fourth port D, the diversion trench 311 is communicated with the water outlet J and the second sub-port C2, and the drainage tank 315 is communicated with the eighth port H. At this time, the second portion G2 of the seventh port G communicates with the communication chamber 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 diversion cavity, and the ninth channel 218 form a slow washing channel. The raw water supply passage formed by the sixth passage 210, the communication chamber 40, and the seventh passage 212 is opened.

The raw water flows through the sixth channel 210, the communicating chamber 40, the fourth port D, the latent channel 219, the water outlet J and the third channel 23 to the central tube 500 in sequence, flows to the lower water distributor 400 through the central tube 500, flows from the lower water distributor 400 to the upper water distributor 300 through the resin layer, slowly washes the resin layer from bottom to top, takes away broken resin and residual dirt, and the wastewater flows from the upper water distributor 300 to the eighth channel 214, the drainage groove 315, the communicating chamber 50 and the ninth channel 218 in sequence and is discharged. At this time, since the raw water supply passage is turned on, the raw water can be discharged from the sixth passage 210 to the communication chamber 40, and through the communication chamber 40 to the seventh passage 212.

In the normal wash state (see fig. 28):

the water inlet groove 312 communicates with the eighth port H, the drain groove 315 communicates with the second sub-port C2, and the second portion G2 of the seventh port G communicates with the communication chamber 40. The sixth channel 210, the communication chamber 40, the eighth channel 214, the third channel 23, the communication chamber 50, and the ninth channel 218 form a forward washing channel. The raw water supply passage formed by the sixth passage 210, the communication chamber 40, and the seventh passage 212 is opened.

The raw water flows through the sixth channel 210, the communicating chamber 40 and the eighth channel 214 in sequence, flows to the lower water distributor 400 through the upper water distributor 300, flows out of the lower water distributor 400 through the central pipe 500, flows through the resin layer in the resin tank 200 from top to bottom, is slowly precipitated and exchanged by fluffy resin through water pressure, separates out dirt, and is discharged from the central pipe 500 to the third channel 23, the water discharge tank 315, the communicating chamber 50 and the ninth channel 218 in sequence. At this time, since the raw water supply passage is turned on, the raw water can be discharged from the sixth passage 210 to the communication chamber 40, and through the communication chamber 40 to the seventh passage 212.

During backwash state (see fig. 29):

the water inlet groove 312 communicates with the first sub-port C1, the drain groove 315 communicates with the eighth port H, and the second portion G2 of the seventh port G communicates with the communication chamber 40. The sixth channel 210, the communication chamber 40, the third channel 23, the eighth channel 214, the communication chamber 50, and the ninth channel 218 form a forward washing channel. The raw water supply passage formed by the sixth passage 210, the communication chamber 40, and the seventh passage 212 is opened.

Raw water flows through the sixth channel 210, the communicating chamber 40 and the third channel 23 in sequence, flows to the lower water distributor 400 through the central pipe 500, flows out from the lower water distributor 400 to the upper water distributor 300, flows through the resin layer in the resin tank 200 from bottom to top, so that the resin is fluffy to achieve the purpose of powerful flushing (ion exchange), and wastewater flows to the eighth channel 214, the communicating chamber 50 and the ninth channel 218 from the upper water distributor 300 in sequence and is discharged. At this time, since the raw water supply passage is turned on, the raw water can be discharged from the sixth passage 210 to the communication chamber 40, and through the communication chamber 40 to the seventh passage 212.

In the state of water replenishing of the salt supplier (see fig. 30):

when the brine storage amount in the brine supply device 700 is insufficient, it is necessary to supplement raw water to the brine supply device 700 and add salt to the raw water so that sufficient saturated brine is formed in the brine supply device 700.

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 guiding channel (including the first salt guiding channel and the second salt guiding channel) form a water replenishing channel of the salt supplying device 700. The raw water supply passage formed by the sixth passage 210, the communication chamber 40, and the seventh passage 212 is opened.

The raw water sequentially flows through the sixth channel 210, the communicating chamber 40, the second channel 22, the second mixing channel and the salt guiding channel to the salt supplying device 700, so as to supplement sufficient raw water to the salt supplying device 700. At this time, since the raw water supply passage is turned on, the raw water can be discharged from the sixth passage 210 to the communication chamber 40, and through the communication chamber 40 to the seventh passage 212.

Specifically, the first concentration is less than the second concentration, and the water softener performs a first regeneration state and a second regeneration state in sequence.

Thus, when the functional ions in the water softening device 100 need to be regenerated, the water softening machine performs the first regeneration state and then performs the second concentration regeneration state, that is, the water softening device 100 is fed with the low-concentration brine and then the high-concentration brine, so that the low concentration and the high concentration are sequentially performed, and the waste of the brine can be reduced under the condition of improving the regeneration rate of the functional ions.

Specifically, the third passage 23 of the control multi-way valve 900 is in communication with the first passage 21 and the second passage 22 in turn.

Further, the slow wash condition is performed after the first regeneration condition and/or the second regeneration condition. Specifically, after the first regeneration state, the water softener is in the slow wash state, and after the second regeneration state, the water softener is in another slow wash state. Namely, after each regeneration state, the water softener is switched to a slow washing state, so that the resin layer can be slowly washed from bottom to top, broken resin and residual dirt are taken away, and the utilization rate of the salt solution is improved. It should be understood that in other embodiments, when the first regeneration state and the second regeneration state are performed sequentially, it is also possible to select to perform a slow wash after the first regeneration state and not perform a slow wash after the second regeneration state, or to perform a slow wash after the first regeneration state and not perform a slow wash after the second regeneration state.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A multi-way valve for a water softener comprising a water softening device (100), characterized in that it comprises:

a valve body assembly (20) having a first passage (21), a second passage (22) and a third passage (23) communicating with the water softening device (100);

a movable valve plate (31) movably assembled on the valve body assembly (20) and capable of moving relative to the valve body assembly (20) to enable the third channel (23) to be communicated with the first channel (21) or the second channel (22);

wherein the first passage (21) is configured to be able to provide the water softening device (100) with brine having a first concentration through the third passage (23), and the second passage (22) is configured to be able to provide the water softening device (100) with brine having a second concentration through the third passage (23); the first concentration of brine has a different concentration than the second concentration of brine.

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

3. The multiway valve according to claim 1 or 2, characterized in that the axial end surface of the movable valve plate (31) facing the valve body assembly (20) has a guide groove (311);

the guide groove (311) is communicated with the third channel (23) and the first channel (21) or the guide groove (311) is communicated with the third channel (23) and the second channel (22).

4. The multiple-way valve according to claim 1, characterized in that the valve body assembly (20) comprises a valve body (215) and a fixed valve plate (216), the fixed valve plate (216) and the valve body (215) forming a latent channel (219);

the movable valve plate (31) can move relative to the fixed valve plate (216) so that the third channel (23) is alternatively communicated with the first channel (21), the second channel (22) and the latent channel (219);

wherein the latent channel (219) is configured to be able to supply raw water to the water softening device (100) through the third channel (23) for slow washing.

5. The multiple-way valve as recited in claim 1, characterized in that the valve body assembly (20) has a seventh passage (212) thereon;

when the third channel (23) is communicated with the first channel (21) or the third channel (23) is communicated with the second channel (22), the seventh channel (212) is communicated with a raw water source.

6. The multiple-way valve as recited in claim 5, characterized in that the valve body assembly (20) has a sixth passage (210) therein communicating with a source of raw water;

the seventh passage (212) communicates with the sixth passage (210) when the third passage (23) communicates with the first passage (21) or the third passage (23) communicates with the second passage (22).

7. The multiway valve of claim 5, wherein the movable valve plate (31) is movable with respect to the valve body assembly (20) to place the third channel (23) in communication alternatively with the first channel (21), the second channel (22) and the seventh channel (212);

when the third channel (23) is communicated with the seventh channel (212), the movable valve plate (31) cuts off the communication between the seventh channel (212) and a raw water source.

8. A water softener, characterized in that it comprises a water softener (100) and a multi-way valve according to any one of claims 1-7;

the water softener also comprises a salt supply device for storing saturated salt water and an ejector (10), wherein the ejector (10) is arranged between the valve body assembly (20) and the salt supply device;

the ejector (10) is provided with a first jet flow channel communicated with the salt supply device, the raw water source and the first channel (21), and a second jet flow channel communicated with 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 saline water provided by the salt supply device are mixed in the first jet flow channel to form the saline water with the first concentration, and the raw water provided by the raw water source and the saturated saline water provided by the salt supply device are mixed in the second jet flow channel to form the saline water with the second concentration.

9. The water softener according to claim 8, wherein the first jet flow passage has a first water guide passage (11), a first salt guide passage and a first mixing passage, one end of the first water guide passage (11), the first salt guide passage and the first mixing passage communicates with a first junction, the other end of the first water guide passage (11) away from the first junction communicates with a raw water source, the other end of the first salt guide passage away from the first junction communicates with the salt supply device, and the other end of the first mixing passage away from the first junction communicates with the first passage; the cross-sectional area of the first water guide channel (11) is gradually reduced from the other end far away from the first junction to the end close to the first junction;

the second jet flow channel is provided with 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 junction, the other end, far away from the second junction, of the second water guide channel (12) is communicated with a raw water source, the other end, far away from the second junction, of the second salt guide channel is communicated with the salt supply device, and the other end, far away from the second junction, of the second mixing channel is communicated with the second channel; the cross-sectional area of the second water guide passage (12) decreases gradually from the other end away from the second junction to the end near the second junction.

10. The water softener according to claim 9, wherein the first water channel (11) and the second water channel (12) are equal in length;

the other end, far away from the first junction, of the first water guide channel (11) is equal to the cross-sectional area of the other end, far away from the second junction, of the second water guide channel (12); the cross-sectional area of one end, close to the first junction, of the first water guide channel (11) is different from that of one end, close to the second junction, of the second water guide channel (12).

11. The water softener according to claim 8, wherein the valve body assembly (20) has a fourth passage (26) and a fifth passage (27), the fourth passage (26) communicating with the first jet passage to supply raw water to the first jet passage, and the fifth passage (27) communicating with the second jet passage to supply raw water to the second jet passage.

12. The water softener according to claim 11, wherein the valve body assembly (20) has a sixth passage (210) communicating with a source of raw water;

when the third passage (23) communicates with the first passage (21), the fourth passage (26) communicates with the sixth passage (210), and raw water flows to the fourth passage (26) through the sixth passage (210); when the third passage (23) communicates with the second passage (22), the fifth passage (27) communicates with the sixth passage (210), and raw water flows to the fifth passage (27) through the sixth passage (210).

13. The water softener according to claim 12, wherein the movable valve plate (31) is provided with a water inlet groove (312);

the water inlet tank (312) communicates the fourth channel (26) with the sixth channel (210) when the third channel (23) communicates with the first channel (21); when the third passage (23) is communicated with the second passage (22), the water inlet groove (312) is communicated with the fifth passage (27) and the sixth passage (210).