Water softener and its jet device

Abstract

The application relates to a water softener and a jet device thereof. The jet device of the water softener comprises a main body, a first cover body, a second cover body and a third cover body which are detachably connected, the third cover body and the first cover body are arranged on opposite sides of the second cover body, one side of the second cover body is buckled with the first cover body to form a first cavity, the other side of the second cover body is buckled with the third cover body to form a second cavity, the second cavity is communicated with a multi-way valve, the first cavity is communicated with a bypass valve, and the first cavity and the second cavity are communicated. A jet assembly is arranged in the second cavity. The jet device of the water softener is characterized in that the bypass valve and the multi-way valve are arranged on different sides of the jet device, the main body of the jet device is provided with cavities which are communicated with the bypass valve and the multi-way valve, the main body of the jet device is of a detachable structure, the bypass valve and the multi-way valve can be prevented from interfering with each other, and the jet device can meet the integrated and miniaturized design requirements.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of soft water, in particular to a soft water machine and a jet device thereof. BACKGROUND

[0002] The commonly used soft water material in the soft water machine is ion exchange resin tank. After a certain amount of soft water is produced by ion exchange, the hardness ions adsorbed by the resin will reach saturation, which requires resin regeneration. The jet device mixes the salt solution in the salt supply device with raw water to form a regeneration liquid, which enters the resin tank to replace the hardness ions in the resin, so that the soft water machine can continue to be used. However, the assembly of each part of the soft water machine is complex, and the installation volume of the soft water machine is large, which is not convenient for the installation operation and use of the user. SUMMARY

[0003] Therefore, it is necessary to provide a soft water machine and a jet device thereof in view of the problem that the soft water machine is not convenient for the installation operation and use of the user.

[0004] A jet device of a soft water machine is arranged between a bypass valve of the soft water machine and a multi-way valve of the soft water machine, and the jet device of the soft water machine comprises:

[0005] A main body comprising a first cover body, a second cover body and a third cover body which are detachably connected, the third cover body and the first cover body are arranged on opposite sides of the second cover body, one side of the second cover body is buckled with the first cover body to form a first cavity, the other side of the second cover body is buckled with the third cover body to form a second cavity, the second cavity is communicated with the multi-way valve, the first cavity is communicated with the bypass valve, and the first cavity and the second cavity are communicated.

[0006] A jet assembly arranged in the second cavity.

[0007] The jet device of the soft water machine described above, the bypass valve and the multi-way valve are arranged on different sides of the jet device, and the main body of the jet device is provided with cavities communicated with the bypass valve and the multi-way valve, the main body of the jet device is a detachable structure, which can avoid the interference between the bypass valve and the multi-way valve, and meet the design requirements of integration and miniaturization.

[0008] In one of the embodiments, the main body has a jet channel and a flow channel which are independently arranged, the flow channel is arranged in the main body and used for communicating the first cavity and the second cavity, and the jet channel is arranged in the second cavity and selectively communicated with the multi-way valve.

[0009] In one of the embodiments, the jet channel comprises a water inlet pipeline, a salt supply pipeline and a water outlet pipeline, the water outlet pipeline is selectively communicated with the multi-way valve, the salt supply pipeline is communicated with a salt supply device of the soft water machine, and the water inlet pipeline is communicated with the second cavity.

[0010] When the water softener is in the regeneration state, raw water flows through the water inlet pipeline, the second cavity and the water outlet pipeline to generate negative pressure, and salt solution enters the water outlet pipeline through the salt supply device under the action of negative pressure and mixes with the raw water in the water outlet pipeline to form regeneration liquid, and the regeneration liquid flows through the water outlet pipeline to the multi-way valve.

[0011] In one embodiment, the water outlet pipeline comprises a functional section and a jet section, the jet section is located downstream of the functional section in the raw water flow direction, and the functional section is arranged in a narrowing manner along the raw water flow direction and used for generating negative pressure.

[0012] In one embodiment, the functional section comprises a first end and a second end arranged oppositely along the raw water flow direction, the flow area of the first end is greater than that of the second end, and the working flow rate Q of the salt supply pipeline is equal to K*Q0 / (3.14*d*d / 4)+a, where K is a variable coefficient, d is the diameter of the second end, a is a constant coefficient, and Q0 is the working flow rate of the functional section.

[0013] In one embodiment, the regeneration liquid concentration β of the jet section is equal to Q*A / (Q0+Q), where Q is the working flow rate of the salt supply pipeline, and A is the saturation concentration of the salt solution.

[0014] In one embodiment, the regeneration liquid concentration β of the jet section ranges from 5% to 14%.

[0015] In one embodiment, the water softener has at least two regeneration states capable of generating regeneration liquid with different concentrations, the water inlet pipelines are at least two, the water outlet pipelines are at least two and arranged in one-to-one correspondence with the water inlet pipelines, and the flow areas of different water outlet pipelines are different; all the water inlet pipelines, the second cavity and the water outlet pipelines form at least two regeneration flow channels with different flow areas, and when the water softener is in different regeneration states, one regeneration flow channel can be selected.

[0016] In one embodiment, the jet assembly comprises a connecting piece arranged in the second cavity, and the connecting piece has at least two connecting channels, different connecting channels are respectively connected to different water inlet pipelines and water outlet pipelines.

[0017] In one embodiment, the jet assembly further comprises nozzles corresponding to the number of water inlet pipelines, each nozzle is detachably arranged in the functional section of each water inlet pipeline, the flow cross section of each nozzle is arranged in a narrowing manner along the raw water flow direction, and the flow areas of the flow cross sections of the nozzles of different functional sections are different.

[0018] In one embodiment, the jet assembly further includes a throat corresponding to the number of water inlet pipes, each throat being detachably disposed within the jet section of each water inlet pipe, the throat communicating with the functional section, and the flow area of ​​the throat being larger than the flow area of ​​the functional section.

[0019] In one embodiment, the jet assembly further includes a filter screen corresponding to the number of water inlet pipes, each of the filter screens being detachably disposed within the water inlet pipe.

[0020] In one embodiment, the jet assembly further includes a filter screen corresponding to the number of water inlet pipes, each of the filter screens being detachably disposed within the water inlet pipe.

[0021] A water softener includes the jet injector of the aforementioned water softener.

[0022] In the aforementioned water softener, the bypass valve and the multi-way valve are respectively located on different sides of the ejector, and the main body of the ejector is provided with a cavity that communicates with the bypass valve and the multi-way valve. The main body of the ejector is a detachable structure, which can avoid interference between the bypass valve and the multi-way valve, and enable the ejector to meet the requirements of integrated and miniaturized design. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of an ejector, bypass valve, and multi-way valve in one embodiment;

[0024] Figure 2 for Figure 1 A schematic diagram of the jet ejector is shown;

[0025] Figure 3 for Figure 2 A cross-sectional view of the jet ejector shown;

[0026] Figure 4 for Figure 3 A magnified view of part A of the jet ejector shown;

[0027] Figure 5 for Figure 3 Exploded view of the jet injector shown;

[0028] Figure 6 for Figure 3 A partial schematic diagram of the jet injector shown.

[0029] Figure label:

[0030] 10, jet; 20, multi-way valve; 30, bypass valve; 100, main body; 101, first cavity; 102, second cavity; 110, first cover; 120, second cover; 130, third cover; 140, jet channel; 141, water inlet pipeline; 142, salt supply pipeline; 143, water outlet pipeline; 143a, functional section; 143b, jet section; 150, overflow channel; 200, jet assembly; 210, connecting piece; 211, connecting channel; 220, nozzle; 230, throat; 240, filter screen. DETAILED DESCRIPTION

[0031] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be 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 and it is therefore contemplated to cover all such modifications as fall within the scope of the application. It should be noted that the specific embodiments of the present application do not limit the scope of the present application.

[0032] 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 based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of 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 limiting the present application.

[0033] In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second", etc. 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 specifically limited.

[0034] In the present application, unless specifically defined otherwise, the terms "initial", "connected", "connected", "fixed" and the like should be broadly understood, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise specifically 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.

[0035] In the present application, unless specifically defined otherwise, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be the first feature directly above or obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "below", "below" and "below" the second feature can be the first feature directly below or obliquely below the second feature, or only indicates that the first feature is less than the second feature in horizontal height.

[0036] It should be noted that when an element is referred to as "fixed to" or "provided to" another element, it can be directly on another element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or a middle element can exist at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and are not the only implementation.

[0037] The water softener has a water supply state, a regeneration state and a water replenishment state. When the water softener is in the water supply state, raw water flows to the multi-way valve 20 through the bypass valve 30 and the jet device 10, and enters the resin tank, and the hardness ions (calcium ions, magnesium ions, etc.) in the raw water are adsorbed by the resin in the resin tank, thereby softening the raw water; when the water softener is in the regeneration state, the raw water is mixed with the salt solution in the salt supply device to form a regeneration liquid, and the regeneration liquid enters the resin tank through the multi-way valve 20 of the water softener to regenerate the resin in the resin tank, thereby ensuring sufficient regenerated ions in the resin tank; and when the salt solution in the salt supply device is used for a period of time, the salt solution in the salt supply device needs to be replenished, at this time the water softener is in the water replenishment state, and raw water needs to be supplied into the salt supply device to dissolve more salt in the salt supply device, thereby forming more salt solution for use.

[0038] The regenerated liquid enters the resin tank and reacts with the resin. The principle is that the ions (sodium ions) in the regenerated liquid replace the hardness ions (calcium ions, magnesium ions, etc.) adsorbed by the resin. The sodium ions in the inhaled regenerated liquid will exchange with the failed resin particles, restoring part of the softening capacity of the resin, and the solution containing calcium and magnesium ions exchanged will be quickly discharged under the action of gas, thereby achieving regeneration.

[0039] Please refer to Figure 1 In an embodiment, the water softener further comprises a salt supply device, a multi-way valve 20 and a bypass valve 30. The bypass valve 30 is connected to a water supply device for providing raw water. The jet device 10 is located between the bypass valve 30 and the multi-way valve 20. The jet device 10 can guide liquid to flow from the salt supply device or the bypass valve 30 to the multi-way valve 20, and then to the resin tank of the water softener through the multi-way valve 20. In addition, the jet device 10 can also guide liquid to flow from the multi-way valve 20 to the salt supply device, thereby supplementing water to the salt supply device. The composition of the liquid guided by the jet device 10 is selected according to the state of the water softener.

[0040] Specifically, please refer to Figures 2 to 4 The jet device 10 comprises a main body 100 and a jet assembly 200. The main body 100 comprises a first cover 110, a second cover 120 and a third cover 130 which are detachably connected. The third cover 130 and the first cover 110 are respectively arranged on opposite sides of the second cover 120. One side of the second cover 120 is buckled with the first cover 110 to form a first cavity 101, and the other side of the second cover 120 is buckled with the third cover 130 to form a second cavity 102. The second cavity 102 is in communication with the multi-way valve 20, the first cavity 101 is in communication with the bypass valve 30, and the first cavity 101 and the second cavity 102 are in communication. The jet assembly 200 is arranged in the second cavity 102.

[0041] The above-mentioned jet device 10, the bypass valve 30 and the multi-way valve 20 are respectively arranged on different sides of the jet device 10, and the main body 100 of the jet device 10 is respectively provided with cavities in communication with the bypass valve 30 and the multi-way valve 20. The main body 100 of the jet device 10 is a detachable structure, which can avoid the mutual interference of the bypass valve 30 and the multi-way valve 20, and meet the design requirements of integration and miniaturization of the jet device 10.

[0042] In the embodiment, the first cover 110, the second cover 120 and the third cover 130 are detachably connected, facilitating quick disassembly and maintenance of the water jet device 10. For example, the first cover 110 is provided with a first fixing hole, the second cover 120 is provided with a second fixing hole, and the third cover 130 is provided with a third fixing hole. A fastener such as a screw or a bolt is used to lock the covers by penetrating the first fixing hole, the second fixing hole and the third fixing hole. In other embodiments, the first cover 110, the second cover 120 and the third cover 130 can also be integrally formed.

[0043] Please refer to Figure 3 and Figure 5 The main body 100 is provided with the water jet channel 140 and the overflow channel 150 which are independent of each other. The overflow channel 150 is arranged in the main body 100 and used to guide the flow of the first cavity 101 and the second cavity 102. The water jet channel 140 is arranged in the second cavity 102 and selectively communicated with the multi-way valve 20.

[0044] Here, the water jet channel 140 is selectively communicated with the multi-way valve 20, which means that the water jet channel 140 and the multi-way valve 20 can be in a blocked state or a communicated state.

[0045] For example, when the water softener is in a water supply state, the water jet channel 140 and the multi-way valve 20 are in a blocked state. Raw water flows into the resin tank for softening treatment through the bypass valve 30, the overflow channel 150 and the multi-way valve 20 in sequence, and then flows to the multi-way valve 20, the overflow channel 150 and the bypass valve 30. The softened water after treatment is output by the bypass valve 30. When the water softener is in a regeneration state, the water jet channel 140 and the multi-way valve 20 are in a communicated state. Raw water flows through the bypass valve 30, the overflow channel 150, the multi-way valve 20 and the water jet channel 140 to generate a regeneration liquid. The regeneration liquid flows to the resin tank through the multi-way valve 20 to clean the resin and exchange ions. When the water softener is in a water supplement state, the water jet channel 140 and the multi-way valve 20 are in a communicated state. Raw water flows through the bypass valve 30, the overflow channel 150, the multi-way valve 20 and the water jet channel 140 and then flows into the salt supply device to store enough salt liquid in the salt supply device.

[0046] Please refer to Figure 6The jet flow channel 140 includes a water inlet pipe 141, a salt supply pipe 142, and a water outlet pipe 143. The water outlet pipe 143 is optionally connected to the multi-way valve 20. The salt supply pipe 142 is connected to a salt supply device of the water softener. The water inlet pipe 141 is connected to the second cavity 102. When the water softener is in the regeneration state, raw water flows from the water inlet pipe 141, the second cavity 102, to the water outlet pipe 143, and generates a negative pressure. Salt solution enters the water outlet pipe 143 from the salt supply device under the negative pressure, and mixes with the raw water in the water outlet pipe 143 to form a regeneration liquid. The regeneration liquid flows from the water outlet pipe 143 to the multi-way valve 20.

[0047] It should be noted that, in the embodiment, the water inlet pipe 141 and the water outlet pipe 143 are located on the same side of the jet flow device 10. In other embodiments, the water inlet pipe 141 and the water outlet pipe 143 can also be located on different sides of the jet flow device 10.

[0048] Specifically, referring to Figure 3 and Figure 4 , the water outlet pipe 143 includes a functional section 143a and a jet flow section 143b. The jet flow section 143b is located downstream of the functional section 143a in the raw water flow direction. The functional section 143a is arranged in a narrowing manner along the raw water flow direction and is used to generate a negative pressure.

[0049] It should be noted that the functional section 143a is the raw water inlet end. Through the above arrangement, the raw water in the water inlet pipe 141 passes through the functional section 143a. The flow area of the functional section 143a suddenly becomes smaller at the narrowing position, so that the flow rate of the raw water suddenly increases to generate a negative pressure. Salt solution is sucked into the jet flow section 143b from the salt supply pipe under the negative pressure, thereby realizing the siphon salt solution of the jet flow device 10.

[0050] More specifically, referring to Figure 3 and Figure 4 , the functional section 143a includes a first end and a second end arranged oppositely along the raw water flow direction. The flow area of the first end is greater than that of the second end. The working flow rate Q of the salt supply pipe 142 is equal to K*Q0 / (3.14*d*d / 4)+a, where K is a variable coefficient, d is the diameter of the second end, a is a constant coefficient, and Q0 is the working flow rate of the functional section 143a.

[0051] It can be understood that the working flow rate of the salt supply pipe 142 and the diameter of the second end have a linear change relationship. Under a certain pressure, the working flow rate of the salt supply pipe 142 is related to the diameter of the second end of the functional section 143a. By adjusting the diameters of the second ends of different functional sections 143a, different working flow rates of the salt supply pipe 142 and different concentrations of the regeneration liquid of the jet flow section 143b can be obtained, thereby meeting different resin regeneration requirements.

[0052] Referring to Figure 3 andFigure 4 The concentration of the regenerated liquid of the jet flow section 143b is β = Q*A / (Q0+Q), wherein Q is the working flow of the salt liquid pipeline 142, and A is the saturated concentration of the salt liquid.

[0053] Preferably, the saturated concentration A of the salt liquid is 26.4%.

[0054] Please refer to Figure 3 and Figure 4 The concentration of the regenerated liquid of the jet flow section 143b ranges from 5% to 14%.

[0055] It can be understood that if the concentration of the regenerated liquid of the jet flow section 143b is too low, the regeneration effect on the resin cannot be achieved; if the concentration of the regenerated liquid of the jet flow section 143b is too high, the cost will be increased. By controlling the concentration of the regenerated liquid of the jet flow section 143b, the regeneration effect of the resin can be kept optimal.

[0056] Please refer to Figure 6 The water softener has at least two regeneration states capable of generating regenerated liquids with different concentrations, the water inlet pipeline 141 is at least two, the water outlet pipeline 143 is at least two and is arranged in one-to-one correspondence with the water inlet pipeline 141, and the flow areas of different water outlet pipelines 143 are different; all the water inlet pipelines 141, the second cavity 102 and the water outlet pipeline 143 form at least two regeneration flow channels with different flow areas, and when the water softener is in different regeneration states, one of the regeneration flow channels can be selected.

[0057] In this way, by selectively opening different water inlet pipelines 141 and water outlet pipelines 143, different flow areas are formed. The flow or concentration of the regenerated liquid flowing under different flow areas is not the same, and different amounts or concentrations of the regenerated liquid can be input according to the requirements of different stages of the regeneration process, so as to better adapt to the dynamic changes of the ion exchange reaction in the regeneration process, reduce salt waste, have good regeneration effect and improve the regeneration efficiency.

[0058] For example, in an embodiment, when it is required to provide the water softener with regenerated liquids with different concentrations from high to low, the water outlet pipeline 143 with a smaller flow area is first opened to suck more salt liquid to mix with raw water, so as to form a high-concentration regenerated liquid, and the high-concentration regenerated liquid enters the resin tank of the water softener through the multi-way valve 20 to perform sufficient ion exchange. As the regeneration continuously proceeds, the ions required to be exchanged are also reduced, and at this time, the water outlet pipeline 143 with a larger flow area is switched to be opened to suck less salt liquid to mix with raw water, so as to form a low-concentration regenerated liquid, and the low-concentration regenerated liquid enters the resin tank of the water softener through the multi-way valve 20. Providing the regenerated liquid with a smaller concentration at this stage will not cause salt waste and will not hinder the regeneration effect, and is more conducive to improving the utilization rate of the salt liquid and improving the regeneration rate.

[0059] In other embodiments, the softener can also be provided with different regeneration solutions with different concentrations from small to large. First, the water outlet pipeline 143 with a larger flow area is opened to suck in less salt solution and mix with raw water to form a low-concentration regeneration solution. As the regeneration continues, the water outlet pipeline 143 with a smaller flow area is switched on to suck in more salt solution and mix with raw water to form a high-concentration regeneration solution.

[0060] It should be noted that the flow area of the second end of the functional section 143a of different water outlet pipelines 143 is different; the flow area of the first end of the functional section 143a of different water outlet pipelines 143 can be the same or different. In this way, the flow area of the first end of different functional sections 143a is the same to ensure that the amount of raw water entering is the same, and the flow area of the second end of different functional sections 143a is different, that is, different functional sections 143a have different narrowed cross sections, so that different functional sections 143a can generate different negative pressures. After the regeneration state starts, different water inlet pipelines 141 can be selectively opened to control the flow of salt solution entering the multi-way valve 20 according to the different needs of the regeneration solution, so as to mix with the same amount of raw water and provide regeneration solutions with different concentrations; when the regeneration working condition needs to be switched, the switching of the regeneration working condition is realized by opening and closing different water inlet pipelines 141, so as to control the concentration of the regeneration solution.

[0061] Please refer to Figure 5 and Figure 3 The jet assembly 200 includes a connecting piece 210 arranged in the second cavity 102, and the connecting piece 210 has at least two connecting channels 211, different connecting channels 211 are respectively connected to different water inlet pipelines 141 and water outlet pipelines 143. Through this arrangement, water inlet and outlet pipelines with different concentrations can be formed for the input and output of regeneration solutions with different concentrations in the second cavity 102.

[0062] For example, the water outlet pipeline 143 and the water inlet pipeline 141 are arranged one by one, when one water inlet pipeline 141 is opened to form a low-concentration regeneration solution, the water outlet pipeline 143 corresponding to the connecting piece 210 is specially used for the flow of low-concentration regeneration solution; when another water inlet pipeline 141 is opened to form a high-concentration regeneration solution, the water outlet pipeline 143 corresponding to the connecting piece 210 is specially used for the flow of high-concentration regeneration solution. In this way, the water inlet pipeline 141 and the water outlet pipeline 143 are avoided from overlapping each other to avoid the mutual influence between different concentrations of regeneration solutions.

[0063] In this embodiment, the connecting piece 210 is detachably fixed in the second cavity 102. For example, the connecting piece 210 is locked to the cavity wall of the second cavity 102 by bolts or screws. In other embodiments, the connecting piece 210 can also be integrally formed in the second cavity 102.

[0064] Please refer to Figure 5 The jet assembly 200 further comprises a plurality of nozzles 220 corresponding to the number of the water outlet pipes 143, each of the nozzles 220 is detachably arranged in the functional section 143a of each of the water outlet pipes 143, and the flow area of the flow passage of each of the nozzles 220 is arranged to be narrowed along the flow direction of the raw water.

[0065] In this way, the functional section 143a is arranged to be narrowed, and the nozzle 220 is detachably assembled in the functional section 143a, which is more convenient for flexible arrangement of the flow passage. In other embodiments, the narrowing structure can also be directly cast in the functional section 143a, which is not limited in the present application.

[0066] Here, please refer to Figure 5 The flow area of one end of the nozzle 220 of different water outlet pipes 143 is the same, and the flow area of the other end of the nozzle 220 is different.

[0067] Please refer to Figure 5 The jet assembly 200 further comprises a plurality of throat pipes 230 corresponding to the number of the water outlet pipes 143, each of the throat pipes 230 is detachably arranged in the jet section 143b of each of the water outlet pipes 143, the throat pipe 230 is in communication with the functional section 143a, and the flow area of the throat pipe 230 is greater than the flow area of the functional section 143a.

[0068] In this way, the throat pipe 230 is detachably assembled in the jet section 143b, which is more convenient for flexible arrangement of the flow passage. In other embodiments, the flow passage can also be directly cast in the jet section 143b, which is not limited in the present application.

[0069] Here, since the nozzle 220 is arranged in the functional section 143a, that is, the throat pipe 230 is in communication with the nozzle 220, and the flow area of the throat pipe 230 is greater than the flow area of the nozzle 220.

[0070] Please refer to Figure 5 The water softener further comprises a plurality of filter screens 240 corresponding to the number of the water inlet pipes 141, each of the filter screens 240 is detachably arranged in the water inlet pipe 141. In this way, impurities in the liquid output from the water inlet pipe 141 are filtered, preventing the regeneration effect from being affected.

[0071] Please refer to Figure 1 In an embodiment, the water softener comprises the above-mentioned jet device 10 of the water softener.

[0072] Specifically, the softener further comprises a bypass valve 30, a multi-way valve 20, a resin tank and a salt supply device. When the softener is in a water supply state, raw water enters the resin tank through the bypass valve 30, the jet device 10 and the multi-way valve 20 to soften the raw water; when the softener is in a regeneration state, a regeneration liquid enters the resin tank through the multi-way valve 20 to regenerate the resin tank; when the softener is in a water supplement state, raw water enters the salt supply device through the bypass valve 30 and the jet device 10 to supplement water for the salt supply device.

[0073] The technical features of the above-described embodiments can be combined in any manner. To make the description simple, all possible combinations of the technical features in the above-described embodiments are not described, but as long as the combinations of the technical features do not contradict each other, they should be considered as falling within the scope of the present disclosure.

[0074] 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 all fall within the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A jet device (10) of a water softener, which is provided between a bypass valve (30) of the water softener and a multi-way valve (20) of the water softener, characterized in that, The jet device (10) of the water softener comprises: a main body (100) comprising a first cover (110), a second cover (120) and a third cover (130) which are detachably connected, the third cover (130) and the first cover (110) are respectively arranged on opposite sides of the second cover (120), one side of the second cover (120) is buckled with the first cover (110) to form a first cavity (101), the other side of the second cover (120) is buckled with the third cover (130) to form a second cavity (102), the second cavity (102) is communicated with the multi-way valve (20), the first cavity (101) is communicated with the bypass valve (30), and the first cavity (101) and the second cavity (102) are communicated. a jet assembly (200) arranged in the second cavity (102). The main body (100) has a jet channel (140) and a flow channel (150) which are independently arranged, the flow channel (150) is arranged in the main body (100) and is used for communicating the first cavity (101) and the second cavity (102), and the jet channel (140) is arranged in the second cavity (102) and is selectively communicated with the multi-way valve (20).

2. A jet (10) for a water softener according to claim 1, characterized in that The jet channel (140) comprises a water inlet pipeline (141), a salt supply pipeline (142) and a water outlet pipeline (143), the water outlet pipeline (143) is selectively communicated with the multi-way valve (20), the salt supply pipeline (142) is communicated with a salt supply device of the water softener, and the water inlet pipeline (141) is communicated with the second cavity (102). When the water softener is in a regeneration state, raw water flows through the water inlet pipeline (141), the second cavity (102) and the water outlet pipeline (143) to generate a negative pressure, salt solution enters the water outlet pipeline (143) through the salt supply device under the action of the negative pressure and is mixed with the raw water in the water outlet pipeline (143) to form a regeneration liquid, and the regeneration liquid flows through the water outlet pipeline (143) to the multi-way valve (20).

3. A jet (10) for a water softener according to claim 2, characterized in that The water outlet pipeline (143) comprises a functional section (143a) and a jet section (143b), the jet section (143b) is located downstream of the functional section (143a) in a raw water flow direction, and the functional section (143a) is arranged in a narrowing manner along the raw water flow direction and is used for generating a negative pressure.

4. A jet (10) for a water softener according to claim 3, characterized in that The functional section (143a) comprises a first end and a second end which are oppositely arranged along the raw water flow direction, a flow area of the first end is greater than that of the second end, and a working flow rate Q of the salt supply pipeline (142) is equal to K*Q0 / (3.14*d*d / 4)+a, wherein K is a variable coefficient, d is a diameter of the second end, a is a constant coefficient, and Q0 is a working flow rate of the functional section (143a).

5. A jet (10) for a water softener according to claim 4, characterized in that A regeneration liquid concentration β of the jet section (143b) is equal to Q*A / (Q0+Q), wherein Q is the working flow rate of the salt supply pipeline (142), and A is a saturation concentration of the salt solution.

6. A jet (10) for a water softener according to claim 5, characterized in that The regenerated liquid concentration β of the jet flow section (143b) ranges from 5% to 14%.

7. A jet (10) for a water softener according to claim 3, characterized in that The water softener has at least two regeneration states capable of generating regenerated liquid with different concentrations, the water inlet pipeline (141) is at least two, the water outlet pipeline (143) is at least two and is arranged one by one with the water inlet pipeline (141), the flow areas of different water outlet pipelines (143) are different; all the water inlet pipeline (141), the second cavity (102) and the water outlet pipeline (143) form at least two regeneration flow channels with different flow areas, when the water softener is in different regeneration states, one regeneration flow channel can be selected.

8. A jet (10) for a water softener according to claim 7, characterized in that The jet flow assembly (200) comprises a connecting piece (210) arranged in the second cavity (102), the connecting piece (210) has at least two connecting channels (211), different connecting channels (211) are respectively connected with different water inlet pipelines (141) and water outlet pipelines (143).

9. A jet (10) for a water softener according to claim 7, characterized in that The jet flow assembly (200) further comprises a plurality of nozzles (220) corresponding to the number of water outlet pipelines (143), each nozzle (220) is detachably arranged in the functional section (143a) of each water outlet pipeline (143), and the flow area of the flow cross section of each nozzle (220) is arranged in a narrowing manner along the flow direction of raw water, and the flow areas of the flow cross sections of the nozzles (220) of different functional sections (143a) are different.

10. A jet (10) for a water softener according to claim 7, characterized in that The jet flow assembly (200) further comprises a plurality of throat pipes (230) corresponding to the number of water outlet pipelines (143), each throat pipe (230) is detachably arranged in the jet flow section (143b) of each water outlet pipeline (143), the throat pipe (230) is connected with the functional section (143a), and the flow area of the throat pipe (230) is greater than the flow area of the functional section (143a).

11. A jet (10) for a water softener according to claim 7, characterized in that The jet flow assembly (200) further comprises a plurality of filter screens (240) corresponding to the number of water inlet pipelines (141), each filter screen (240) is detachably arranged in the water inlet pipeline (141).

12. A water softener characterised by, The jet flow device (10) comprising the water softener according to any one of claims 1-11. The jet flow device (10) comprising the water softener according to any one of claims 1-11.

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