Residual chlorine generating device and water softener

Abstract

The invention discloses a residual chlorine generating device and a water softener, and relates to the technical field of sterilization. Wherein the residual chlorine generating device comprises a residual chlorine generator and a flow limiting assembly, the residual chlorine generator is provided with a residual chlorine generating cavity, a first inlet and a first outlet, the first inlet and the first outlet are communicated with the residual chlorine generating cavity, and an electrode assembly is arranged in the residual chlorine generating cavity; the flow limiting assembly is arranged on the residual chlorine generator and used for reducing the flow of the to-be-electrolyzed solution flowing through the residual chlorine generating cavity; the residual chlorine generator is used for electrolyzing the to-be-electrolyzed solution connected through the first inlet so as to generate a chlorine-containing sterilizing solution, the chlorine-containing sterilizing solution is output through the first outlet, the flow of the to-be-electrolyzed solution is reduced through the current limiting assembly, the retention time of the to-be-electrolyzed solution at the electrode assembly is prolonged, the electrolytic reaction is more sufficient, and the generation concentration of the chlorine-containing sterilizing solution is improved; meanwhile, bubble accumulation on the electrode surface is reduced, and the electrolysis efficiency of the residual chlorine generating device is improved.

Description

Technical Field

[0001] This application relates to the field of sterilization technology, and in particular to a residual chlorine generator and a water softener. Background Technology

[0002] Water softeners utilize ion exchange technology, where functional ions from the resin in the resin tank exchange with calcium and magnesium ions in the water to remove scale and ensure the quality of bathing and drinking water. However, the resin in the tank, when immersed in water for extended periods, can easily create a breeding ground for microorganisms, leading to secondary water pollution. To address this, existing water softeners typically incorporate a sterilization module during the resin regeneration stage. This module uses a residual chlorine generator to electrolyze brine, converting chloride ions into chlorine-containing bactericidal substances such as sodium hypochlorite to disinfect the resin tank. However, traditional residual chlorine generators in sterilization modules generally suffer from low electrolysis efficiency, resulting in poor final sterilization effects. Summary of the Invention

[0003] In view of the above problems, this application provides a residual chlorine generator and a water softener, which aims to improve the electrolysis efficiency of the residual chlorine generator.

[0004] To achieve the above objectives, this application proposes a residual chlorine generating device, the residual chlorine generating device comprising: A residual chlorine generator has a residual chlorine generating chamber and a first inlet and a first outlet connected to the residual chlorine generating chamber. An electrode assembly is provided in the residual chlorine generating chamber. The residual chlorine generator is used to electrolyze the electrolyte to be electrolyzed through the first inlet to generate a chlorine-containing bactericidal liquid, which is then output through the first outlet. A flow limiting component is provided on the residual chlorine generator, and the flow limiting component is used to reduce the flow rate of the electrolyte flowing through the residual chlorine generation chamber.

[0005] In one embodiment, the flow limiting component includes an input flow limiter disposed at the first inlet of the residual chlorine generator, the input flow limiter being used to reduce the flow rate of the electrolyte flowing into the residual chlorine generating chamber.

[0006] In one embodiment, the input current limiter includes: An input pipe, one end of which is connected to the first inlet of the residual chlorine generator; A flow-limiting core is disposed in the input tube. The flow-limiting core has a buffer cavity and a flow-limiting inlet and a flow-limiting outlet connected to the buffer cavity. The flow-limiting inlet, the buffer cavity, the flow-limiting outlet and the first inlet of the residual chlorine generator are connected in sequence. The diameter of the flow-limiting inlet and the flow-limiting outlet is smaller than the diameter of the first inlet of the residual chlorine generator. The buffer chamber is used to convert the electrolyte that flows in at a first flow rate through the flow-limiting inlet into a second flow rate, and then outputs it to the residual chlorine generator through the flow-limiting outlet.

[0007] In one embodiment, the current-limiting core includes a current-limiting plug and a current-limiting bracket. The current-limiting bracket has a first segment and a second segment connected to each other. The first segment has a first flow channel, and the second segment has a second flow channel. The current-limiting plug has a third flow channel. The current-limiting plug is disposed in the first segment of the current-limiting bracket. The third flow channel, the first flow channel, and the second flow channel are connected in sequence. The flow cross-sectional area of ​​the second flow channel is larger than the flow cross-sectional area of ​​the third flow channel and smaller than the flow cross-sectional area of ​​the first flow channel. Wherein, the third flow channel of the flow-limiting plug is the flow-limiting inlet, the first flow channel of the flow-limiting bracket is the buffer cavity, and the second flow channel of the flow-limiting bracket is the flow-limiting outlet.

[0008] In one embodiment, the input current limiter further includes a limiting block disposed on the inner wall of the input tube body on the side of the current limiting plug away from the current limiting bracket. The limiting block is used to abut against and limit the current limiting plug in the axial direction of the input tube body.

[0009] In one embodiment, a fixing block is provided on the side of the second section of the flow limiting bracket away from the first section, and the fixing block extends in a first direction, which intersects with the extension direction of the second flow channel; The fixing block has a first side and a second side arranged opposite to each other. The first side of the fixing block is attached to the end of the input pipe near the residual chlorine generator, and the second side of the fixing block is attached to the residual chlorine generator.

[0010] In one embodiment, a third section is provided on the side of the first section of the flow-limiting bracket away from the second section, the third section having an installation cavity, and the flow-limiting plug being disposed in the installation cavity.

[0011] In one embodiment, the residual chlorine generating device further includes a filter screen disposed on the input pipe body and set at a first angle to the length direction of the input pipe body, the first angle being greater than zero.

[0012] In one embodiment, the current limiting component includes an output current limiter disposed at the first outlet of the residual chlorine generator, the output current limiter being used to reduce the flow rate of the electrolyte flowing through the residual chlorine generating chamber.

[0013] In one embodiment, the output current limiter includes: An output pipe body, wherein the output pipe body is connected to the first outlet of the residual chlorine generator; A blocking element is provided at the first outlet of the residual chlorine generator. The blocking element and the first outlet of the residual chlorine generator form a narrowed flow channel. The flow cross-sectional area of ​​the narrowed flow channel is smaller than the flow cross-sectional area of ​​the first outlet, so as to reduce the electrolyte output through the first outlet of the residual chlorine generator.

[0014] In one embodiment, the output tube has a first end and a second end opposite to each other. The first end of the output tube is connected to the first outlet of the residual chlorine generator, and the second end of the output tube extends outward from the side of the residual chlorine generator corresponding to the blocking member, so that the output tube and the residual chlorine generator are set at an acute angle.

[0015] In one embodiment, the current limiting component includes an input current limiter and an output current limiter; The input current limiter is located at the first inlet of the residual chlorine generator, and the input current limiter is used to reduce the flow rate of the electrolyte flowing into the residual chlorine generation chamber; The output current limiter is located at the first outlet of the residual chlorine generator, and the input current limiter is used to reduce the flow rate of the electrolyte flowing through the residual chlorine generation chamber.

[0016] In one embodiment, the residual chlorine generator is a tubular shell extending axially, with the residual chlorine generating chamber formed inside; The electrode assembly includes a first electrode plate, a second electrode plate, a first electrical connector, and a second electrical connector. The first electrode plate and the second electrode plate are disposed within the residual chlorine generating chamber and are arranged radially and relatively spaced apart from each other along the residual chlorine generator. The first electrical connector and the second electrical connector are disposed on the outer wall of the residual chlorine generator. The first electrode plate is electrically connected to the first electrical connector through a conductive path, and the second electrode plate is electrically connected to the second electrical connector through a conductive path. The first electrical connector and the second electrical connector are used to connect to an external power source to form an electrolytic electric field between the first electrode plate and the second electrode plate.

[0017] In one embodiment, there are multiple electrode assemblies. The first electrode plate and the second electrode plate of each electrode assembly are paired together and arranged sequentially in the residual chlorine generating chamber along the axial direction of the residual chlorine generator. The multiple electrode assemblies are connected in series. The second electrical connector of the previous electrode assembly is electrically connected to the first electrical connector of the next electrode assembly. The first electrical connector of the front electrode assembly and the second electrical connector of the rear electrode assembly are used to connect to a power source.

[0018] This application also provides a water softener, which includes a residual chlorine generating device as described above.

[0019] In one embodiment, the water softener further includes: The jet ejector includes a second inlet, a third inlet, and a second outlet that are interconnected. The second inlet is used to connect to a water source, and the third inlet is connected to the first outlet of the residual chlorine generator. The jet ejector is used to mix the water source and the chlorine-containing disinfectant solution and then output the mixture through the second outlet. A soft water tank, wherein the inlet of the soft water tank is connected to the second outlet of the jet injector.

[0020] In one embodiment, the water softener further includes a water distributor, the input end of which is connected to the second outlet of the jet injector, and the output end of which is connected to the inlet of the water softener tank.

[0021] In summary, the residual chlorine generator and water softener provided in this application reduce the flow rate of the liquid to be electrolyzed by a flow limiting component, prolong the residence time of the liquid to be electrolyzed at the electrode assembly, make the electrolysis reaction more complete, increase the concentration of the chlorine-containing bactericidal liquid, and at the same time reduce the accumulation of bubbles on the electrode surface, thereby improving the electrolysis efficiency of the residual chlorine generator. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0023] Figure 1 A system schematic diagram of the first embodiment of the residual chlorine generating device provided in this application; Figure 2 A structural diagram of a second embodiment of the residual chlorine generating apparatus provided in this application; Figure 3 for Figure 2 Another structural diagram from the perspective of the text; Figure 4 for Figure 3 Cross-sectional view of AA in the middle; Figure 5 for Figure 4 A magnified view of a section at point B in the middle; Figure 6 An exploded view of a third embodiment of the residual chlorine generating apparatus provided in this application; Figure 7 A structural diagram of the fourth embodiment of the residual chlorine generating device provided in this application; Figure 8 A structural diagram of the fifth embodiment of the residual chlorine generating apparatus provided in this application; Figure 9A structural diagram of an embodiment of the residual chlorine generator and output current limiter provided in this application; Figure 10 for Figure 9 Cross-sectional view of CC in China; Figure 11 This is a schematic diagram of the first embodiment of the water softener provided in this application.

[0024] Explanation of icon numbers: 10. Residual chlorine generating device; 100. Residual chlorine generator; 200. Flow limiting component; 210. Input flow limiter; 211. Input tube body; 212. Flow limiting core; 2121. Flow limiting plug; 2122. Flow limiting bracket; 2123. First section; 2124. Second section; 2125. Third section; 213. Flow limiting inlet; 214. Flow limiting outlet; 215. Buffer chamber; 216. Limiting block; 217. Fixing block; 218. Filter screen; 220. Output flow limiter; 221. Output tube body; 222. Blocking component; 300, Electrode assembly; 310, First electrode plate; 320, Second electrode plate; 330, First electrical connector; 340, Second electrical connector; 20. Water softener; 410. Jet ejector; 420. Water softener tank; 430. Water distributor.

[0025] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0026] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0028] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0029] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0030] Water softeners use ion exchange technology, which replaces hardness ions such as calcium and magnesium in the raw water with sodium ions through cation exchange resin filled in a resin tank. This effectively removes limescale and improves bathing comfort and drinking water quality. However, because the resin is immersed in water for a long time, it is very easy for microorganisms and bacteria to grow, which can lead to secondary water pollution and affect users' health.

[0031] To address the aforementioned issues, traditional water softeners incorporate a sterilization module that actively sterilizes the resin tank during the resin regeneration stage. This module includes a residual chlorine generator, which electrolyzes saturated brine, converting chloride ions into highly oxidizing sodium hypochlorite and other effective sterilizing components under an electric field. This sodium hypochlorite is then injected into the resin tank, achieving highly efficient sterilization of the resin bed and the tank interior, thereby inhibiting microbial growth and ensuring the safety and hygiene of the treated water.

[0032] However, existing residual chlorine generators in sterilization modules generally suffer from unreasonable structural design: on the one hand, the electrolyte residence time in the electrode chamber is insufficient, making it difficult to fully electrolyze and generate sufficient effective chlorine; on the other hand, the lack of precise control over the electrolyte path and flow rate results in uneven current density distribution on the electrode surface, localized overheating, or reaction dead zones, further reducing electrolysis efficiency. Therefore, the residual chlorine generators in traditional water softeners often suffer from low electrolysis efficiency, leading to poor sterilization performance of their sterilization modules.

[0033] In view of the above problems, this application provides a residual chlorine generating device 10. In one embodiment, as shown... Figure 1 As shown, the residual chlorine generating device 10 includes a residual chlorine generator 100 and a flow limiting component 200, which are designed to improve the electrolysis efficiency of the residual chlorine generating device 10, thereby ultimately improving the sterilization effect.

[0034] It should be noted that, in the embodiments of this application, unless otherwise specified, the electrolyte can refer to the original liquid that has not yet entered the electrolysis process (e.g., an aqueous solution of sodium chloride, i.e., brine), or it can refer to the liquid that is in the process of electrolysis, i.e., the intermediate state liquid in the residual chlorine generating chamber that has not yet completed the electrolysis reaction. The electrolyte specifically refers to the product liquid that is finally output by the residual chlorine generator 100 after the electrolysis reaction, i.e., a solution that has completed the electrolysis process and contains effective disinfecting components such as sodium hypochlorite.

[0035] In this embodiment, the residual chlorine generator 100 has a residual chlorine generating chamber and a first inlet and a first outlet connected to the residual chlorine generating chamber. An electrode assembly 300 is provided inside the residual chlorine generating chamber. The residual chlorine generating chamber can be understood as a structure used to contain the electrolyte and provide space for the electrolytic reaction. The electrode assembly 300 can be made of conductive material, such as a metal sheet, metal mesh, or conductive coating. The electrode assembly 300 is located inside the residual chlorine generating chamber, and its main function is to form an electrolytic electric field through an external power supply, thereby converting chloride ions in the electrolyte into chlorine-containing bactericidal substances.

[0036] The residual chlorine generator 100 can be implemented in various ways, such as using a cylindrical cavity, a rectangular cavity, or a closed cavity of other shapes, without being limited here.

[0037] In this embodiment, the flow-limiting component 200 is disposed on the residual chlorine generator 100. The flow-limiting component 200 is used to reduce the flow rate of the electrolyte flowing through the residual chlorine generation chamber. It is understood that the flow-limiting component 200 can be implemented in various ways. For example, a throttle valve, an orifice plate flow limiter, or a venturi tube can be used to reduce the flow rate of the electrolyte. Optionally, the flow-limiting component 200 is disposed at the first inlet of the residual chlorine generator 100 to limit the initial flow rate entering the residual chlorine generation chamber, thereby directly controlling the flow rate of the electrolyte participating in the electrolysis reaction. Optionally, the flow-limiting component 200 is disposed at the first outlet of the residual chlorine generator 100. By limiting the discharge flow rate, a moderate back pressure is formed in the chamber, indirectly reducing the overall flow rate, thus achieving the effect of extending the electrolysis time. Of course, the implementation method of the flow-limiting component 200 is not limited here; its main purpose is to extend the residence time of the electrolyte in the residual chlorine generation chamber and avoid incomplete electrolysis caused by excessive flow rate.

[0038] In one feasible embodiment, the residual chlorine generator 100 forms a sealed residual chlorine generating chamber, and is provided with a first inlet and a first outlet communicating with the residual chlorine generating chamber. The first inlet is used to introduce the electrolyte to be electrolyzed, and the first outlet is used to output the generated chlorine-containing bactericidal liquid. The electrode assembly 300, when energized, acts on the electrolyte flowing through the chamber, oxidizing the chloride ions in it into chlorine-containing bactericidal substances with strong oxidizing properties, such as hypochlorous acid and sodium hypochlorite, through an electrochemical reaction, thereby achieving basic sterilization function. The residual chlorine generator 100 also integrates a flow-limiting component 200, which is configured to reduce the flow rate of the electrolyte into or out of the residual chlorine generating chamber, thereby effectively reducing the overall flow rate of the electrolyte within the chamber. By limiting the flow rate, the residence time of the electrolyte in the action area of ​​the electrode assembly 300 is extended, allowing chloride ions more sufficient opportunity to participate in the oxidation reaction on the electrode surface, avoiding problems such as incomplete reaction and low current efficiency caused by excessively high flow rates. Therefore, this embodiment improves the electrolysis efficiency and final sterilization reliability of the residual chlorine generator 10 under the premise of simple structure and controllable cost.

[0039] In summary, the residual chlorine generator 10 provided in this application reduces the flow rate of the electrolyte by limiting the flow rate component 200, prolongs the residence time of the electrolyte at the electrode assembly 300, makes the electrolysis reaction more complete, increases the concentration of the chlorine-containing bactericidal liquid, and at the same time reduces the accumulation of bubbles on the electrode surface, thereby improving the electrolysis efficiency of the residual chlorine generator 10.

[0040] In one embodiment, such as Figure 1 and Figure 2 As shown, the flow limiting component 200 includes an input flow limiter 210, which is located at the first inlet of the residual chlorine generator 100. The input flow limiter 210 is used to reduce the flow rate of the electrolyte flowing into the residual chlorine generation chamber.

[0041] The input flow restrictor 210 can be implemented in various structural forms, such as a throttle valve, a flow restrictor orifice plate, a capillary tube, a reduced-diameter pipe, or a composite flow restrictor structure composed of a flow restrictor plug 2121 and a buffer chamber. These structures all feature a local flow cross-sectional area smaller than the main pipeline, utilizing the flow resistance effect to reduce flow velocity and achieve flow control. Placing the input flow restrictor 210 at the first inlet serves two purposes: firstly, it suppresses excessive inlet flow at the source, preventing current density fluctuations or incomplete reactions caused by instantaneous high flow velocity impacting the electrode surface; secondly, by actively reducing and stabilizing the electrolyte flow rate, it effectively prolongs the residence time of the electrolyte in the residual chlorine generation chamber, allowing chloride ions more sufficient opportunity to complete the oxidation reaction on the electrode surface, generating sufficient amounts of hypochlorous acid and other effective bactericidal components.

[0042] In addition, a low flow rate environment helps improve the mass transfer uniformity of the electrode surface, reduce local concentration polarization or bubble retention, thereby improving electrolysis efficiency and chlorine production stability.

[0043] In one embodiment, such as Figures 3 to 5 As shown, the input flow limiter 210 includes an input tube 211 and a flow limiting core 212. One end of the input tube 211 is connected to the first inlet of the residual chlorine generator 100. The flow limiting core 212 is disposed inside the input tube 211. The flow limiting core 212 has a buffer cavity 215 and a flow limiting inlet 213 and a flow limiting outlet 214 connected to the buffer cavity 215. The flow limiting inlet 213, the buffer cavity 215, the flow limiting outlet 214 and the first inlet of the residual chlorine generator 100 are connected in sequence. The diameters of the flow limiting inlet 213 and the flow limiting outlet 214 are smaller than the diameter of the first inlet of the residual chlorine generator 100. The buffer cavity 215 is used to convert the electrolyte flowing in through the flow limiting inlet 213 at a first flow rate into a second flow rate, and output it to the residual chlorine generator 100 through the flow limiting outlet 214.

[0044] Optionally, one end of the input pipe 211 is sealed to the first inlet of the residual chlorine generator 100, forming a channel for the electrolyte to enter the residual chlorine generation chamber. The input pipe 211 can be made of rigid plastic pipe, metal pipe, or corrosion-resistant flexible hose, etc. The specific material is not limited here. Its main function is to provide a stable and directional inflow path for the electrolyte and to support the installation of the internal current-limiting core 212.

[0045] Optionally, the flow-limiting core 212 is fixedly installed inside the input pipe 211. This flow-limiting core 212 has a three-section flow channel structure: a flow-limiting inlet 213, a buffer chamber 215, and a flow-limiting outlet 214. These three sections are connected sequentially and form a continuous electrolyte passage with the first inlet of the residual chlorine generator 100. Specifically, the flow diameters of the flow-limiting inlet 213 and the flow-limiting outlet 214 are both smaller than the diameter of the first inlet of the residual chlorine generator 100, thus creating localized narrowing at the beginning and end of the flow channel, generating a throttling effect and effectively limiting the overall flow rate.

[0046] The buffer chamber 215 is located between the flow-limiting inlet 213 and the flow-limiting outlet 214. Its inner diameter is larger than that of the flow-limiting inlet 213 and the flow-limiting outlet 214, forming a locally enlarged volume space. When the electrolyte enters through the flow-limiting inlet 213 at a relatively high first flow rate, the flow rate decreases within the buffer chamber 215 due to the increased flow cross-sectional area. It then exits through the flow-limiting outlet 214 at a lower and more stable second flow rate to the residual chlorine generating chamber. This achieves flow restriction and smooth flow rate conversion, avoiding turbulence, cavitation, or pressure fluctuations caused by sudden changes in flow rate. Through this structure, the input flow limiter 210 can transform the potentially too fast and unstable inlet flow into a low-speed, highly stable flow field suitable for the electrolysis reaction. This extends the effective residence time of the electrolyte in the residual chlorine generating chamber, allowing the electrode assembly 300 sufficient opportunity to oxidize chloride ions into bactericidal components such as hypochlorous acid, thereby improving electrolysis efficiency and the concentration stability of the chlorine-containing bactericidal solution.

[0047] It is worth noting that if only a single flow-limiting orifice is used, i.e., only one single flow-limiting orifice is provided at the first inlet, and this single flow-limiting orifice is connected to the residual chlorine generating chamber for flow control, although the total flow rate can be reduced, it is easy to cause a short circuit in the electrolyte. That is to say, after the high-speed electrolyte passes through the narrow flow-limiting orifice, it will directly rush into the residual chlorine generating chamber in the form of a jet, and shoot directly from the first inlet to the first outlet along the shortest path, bypassing most of the electrode area, resulting in the following consequences: a large amount of electrolyte is discharged without sufficient contact with the electrode surface, resulting in a significantly insufficient effective chlorine generation; the electrical energy consumed is not converted into effective products, resulting in energy waste; and the hypochlorous acid content in the output liquid is low, making it impossible to achieve reliable sterilization. Therefore, the buffer chamber 215 in this embodiment not only reduces the flow rate, but also creates a scattered flow and promotes the diffusion of the electrolyte, so that the electrolyte is transformed into a uniform, low-speed laminar flow state before entering the residual chlorine generating chamber, thereby ensuring that it flows fully through the entire electrode area and achieves an efficient and uniform electrolysis reaction.

[0048] In one embodiment, such as Figures 3 to 6 As shown, the flow-limiting core 212 includes a flow-limiting plug 2121 and a flow-limiting bracket 2122. The flow-limiting bracket 2122 has a first section 2123 and a second section 2124 that are connected to each other. The first section 2123 has a first flow channel, and the second section 2124 has a second flow channel. The flow-limiting plug 2121 has a third flow channel. The flow-limiting plug 2121 is located in the first section 2123 of the flow-limiting bracket 2122. The third flow channel, the first flow channel, and the second flow channel are connected in sequence. The flow cross-sectional area of ​​the second flow channel is larger than that of the third flow channel and smaller than that of the first flow channel. The third flow channel of the flow-limiting plug 2121 is the flow-limiting inlet 213, the first flow channel of the flow-limiting bracket 2122 is the buffer cavity 215, and the second flow channel of the flow-limiting bracket 2122 is the flow-limiting outlet 214.

[0049] The third flow channel, serving as the flow-limiting inlet 213, has the smallest cross-sectional area and is used to limit the flow rate at the initial stage of the electrolyte entering the chamber. The first flow channel, serving as the buffer chamber 215, has a larger cross-sectional area than the third flow channel, providing an expanded flow space for the electrolyte, allowing the high-speed inflowing electrolyte to slow down and diffuse, reducing turbulence intensity and stabilizing the flow state. The second flow channel, serving as the flow-limiting outlet 214, has a cross-sectional area between the third and first flow channels, preventing the flow velocity from rising too quickly and ensuring that the electrolyte enters the residual chlorine generating chamber in a controllable and uniform manner, preventing the electrolyte from being directly ejected from the first inlet to the first outlet of the residual chlorine generating chamber. It is understood that the electrolyte is first throttled through the third flow channel of the flow-limiting plug 2121, then enters the buffer chamber 215 of the first section 2123 of the flow-limiting support 2122, where the flow velocity decreases and tends to stabilize, and finally exits to the residual chlorine generator 100 through the second flow channel at a flow rate adapted to the electrolysis requirements. This structure effectively avoids the problem of uneven reaction caused by sudden changes in flow rate or local jet flow.

[0050] The flow restrictor 2121 and the flow restrictor bracket 2122 adopt a split structure, which not only facilitates processing, manufacturing, assembly and maintenance, but also allows for flexible adjustment of the dimensions of each flow channel according to actual needs. The two sections of the flow restrictor bracket 2122 are integrated, ensuring the sealing performance and structural rigidity of the flow channel, while supporting a smooth transition of the electrolyte in different functional zones.

[0051] It is particularly important to note that the relative installation position of the flow restrictor 2121 within the residual chlorine generating chamber has a significant impact on the overall electrolysis performance. If the flow restrictor 2121 is improperly positioned, such as being too close to the outlet or deviating from the main flow path, it may cause the electrolyte flow to be deflected, forming localized short-circuit flow or dead zones, resulting in some electrode areas not being effectively utilized. However, in this embodiment, by integrating the flow restrictor 2121 inside the input flow restrictor 210 and fixing it at the first inlet of the residual chlorine generator 100, the electrolyte can be directly input into the residual chlorine generating chamber without obstruction, fundamentally avoiding the aforementioned risks.

[0052] In one embodiment, such as Figures 3 to 5 As shown, the input current limiter 210 also includes a limiting block 216. The limiting block 216 is located on the inner wall of the input pipe body 211 on the side opposite to the current limiting plug 2121 and the current limiting bracket 2122. The limiting block 216 is used to abut against and limit the current limiting plug 2121 in the axial direction of the input pipe body 211.

[0053] The limiting block 216 can take the form of an inner wall boss, an annular shoulder, a snap-fit ​​structure, or an embedded baffle, etc., and is not limited here. Since the electrolyte has a certain momentum when it enters, if the flow-limiting plug 2121 is not reliably fixed, it may loosen or even move backward due to the impact of the electrolyte, leading to changes in the flow-limiting gap, flow control failure, and consequently affecting electrolysis stability. The limiting block 216 is designed to solve this problem.

[0054] In this embodiment, the limiting block 216 is a limiting ring located on the inner wall of the input pipe 211 and surrounding its inner circumferential surface. The limiting ring can be integrally formed with the input pipe 211 or fixed to the inner wall of the pipe near the inlet end by means of embedding, welding, etc. The inner diameter of the limiting ring is smaller than the outer diameter of the flow restrictor 2121, so that after the flow restrictor 2121 is installed, its inlet-facing end face abuts against the end face of the limiting ring, forming a reliable axial stop. Through this structure, the flow restrictor 2121 is firmly clamped between the limiting ring and the flow restrictor bracket 2122, preventing axial movement or loosening even under high flow velocity or pressure fluctuation conditions. It should be noted that the limiting ring is designed with its inner hole basically aligned with the main flow channel of the input pipe 211, forming only small steps or transition surfaces locally. This ensures that the flow cross-sectional area changes minimally when the fluid passes through the limiting ring area, preventing significant throttling effects or sudden changes in flow resistance. Meanwhile, the annular structure has good axisymmetry, which helps maintain the uniformity of the flow field and avoids the induction of eddies or turbulence due to local obstruction. Therefore, while effectively positioning the flow restrictor 2121 axially, the limiting ring hardly interferes with the normal flow of the electrolyte, ensuring that the electrolyte can smoothly and continuously enter the subsequent flow restrictor 212 and residual chlorine generation chamber, providing reliable fluid conditions for stable electrolysis.

[0055] Optionally, the limiting ring is a hollow annular structure, with its inner hole coaxially arranged with the flow-limiting inlet 213, the buffer cavity 215, and the flow-limiting outlet 214, forming a continuous and centered fluid channel. This coaxial arrangement ensures that the electrolyte does not need to change its flow direction when flowing through the limiting ring, avoiding flow velocity disturbances, pressure losses, or local eddies caused by eccentricity or corners.

[0056] In one embodiment, such as Figures 3 to 5 As shown, a fixing block 217 is provided on the side of the second section 2124 of the flow limiting bracket 2122 away from the first section 2123. The fixing block 217 extends in a first direction, which intersects with the extension direction of the second flow channel. The fixing block 217 has a first side and a second side that are arranged opposite to each other. The first side of the fixing block 217 is attached to the end of the input pipe 211 near the residual chlorine generator 100, and the second side of the fixing block 217 is attached to the residual chlorine generator 100.

[0057] The fixing block 217 can be made of metal, engineering plastic, or other materials with sufficient rigidity and corrosion resistance; the specific material is not limited here. Its main function is to position the flow-limiting bracket 2122 at the connection area between the inlet pipe 211 and the residual chlorine generator 100. During the flow of the electrolyte, especially under high flow rate or pressure fluctuation conditions, the flow-limiting core 212 may be displaced due to axial thrust or vibration, thereby changing the flow-limiting gap or damaging the sealing fit. The fixing block 217, by simultaneously abutting against the inlet pipe 211 and the residual chlorine generator 100, forms a bridging support structure, effectively suppressing such displacement.

[0058] The fixing block 217 can be an annular block, a four-claw-shaped bracket, an eight-claw-shaped support arm, or other multi-point distributed connection structures. It extends around the end of the second segment 2124 of the flow-limiting bracket 2122 and is spaced out circumferentially to achieve multi-point contact with the input pipe 211 and the residual chlorine generator 100. Taking a four-claw-shaped (four-arm) structure as an example... Figure 6 As shown, its multiple arms are evenly distributed circumferentially. One side of each arm is attached to the end face of the input pipe 211 near the residual chlorine generator 100, and the other side abuts against the outer wall of the housing of the residual chlorine generator 100. This enhances the stability of the overall assembly and effectively disperses fluid impact loads, avoiding local stress concentration.

[0059] Understandably, the fixing block 217, located at the end of the second section 2124 of the current limiting bracket 2122, can fix the current limiting bracket 2122 between the input pipe 211 and the residual chlorine generator 100 without additional fasteners. Furthermore, when the first section 2123 and the second section 2124 of the current limiting bracket 2122 are inserted into the input pipe 211, one side of the fixing block 217 naturally fits the diameter of the input pipe 211 to secure the current limiting bracket 2122, thus improving the ease of installation.

[0060] In one embodiment, such as Figure 5 As shown, the input current limiter 210 also includes a limiting block 216, and a fixing block 217 is provided on the side of the second segment 2124 of the current limiting bracket 2122 opposite to the first segment 2123. Thus, the current limiting core 212 is clamped between the limiting block 216 and the fixing block 217. The limiting block 216 constrains its front end position, and the fixing block 217 anchors its rear end and bridging to the external structure. This eliminates the axial degree of freedom of the current limiting plug 2121 and the current limiting bracket 2122, avoiding micro-displacement caused by vibration, start-stop impact, or pressure fluctuations.

[0061] In one embodiment, such as Figure 5As shown, a third section 2125 is provided on the side of the first section 2123 of the flow-limiting bracket 2122 opposite to the second section 2124. The third section 2125 has a mounting cavity, in which the flow-limiting plug 2121 is disposed. By embedding the flow-limiting plug 2121 in this mounting cavity, the assembly accuracy and structural stability are improved, while preventing the flow-limiting plug 2121 from shifting or loosening under fluid impact. This helps maintain the consistency of the flow-limiting performance and provides stable liquid inlet conditions for the subsequent electrolysis process.

[0062] In one embodiment, such as Figure 5 As shown, the residual chlorine generator 10 also includes a filter screen 218, which is disposed on the input pipe 211 and is set at a first angle with the length direction of the input pipe 211, the first angle being greater than zero.

[0063] Optionally, the first angle is 90°, that is, the filter screen 218 is arranged perpendicular to the cross-section of the flow channel, thereby maximizing the interception effect and facilitating the deposition of impurities on the surface of the filter screen 218 rather than embedding them deep in the pores.

[0064] Optionally, the pore size of each filter pore in the filter screen 218 is smaller than the flow cross-sectional size of the flow-limiting inlet 213. In this way, if small particles enter the input pipe 211 through the pre-pipeline, they will be effectively intercepted by the filter screen 218 and cannot enter the subsequent flow-limiting core 212. At the same time, this avoids the risk of impurities clogging the flow-limiting inlet 213 or jamming the flow-limiting plug 2121, ensuring the long-term stable operation of the flow-limiting structure.

[0065] In one embodiment, such as Figure 1 and 2 As shown, the flow limiting component 200 includes an output flow limiter 220, which is located at the first outlet of the residual chlorine generator 100. The output flow limiter 220 is used to reduce the flow rate of the electrolyte flowing through the residual chlorine generation chamber.

[0066] The output flow limiter 220 can be implemented using a throttling orifice plate, a reduced diameter tube, a venturi structure, or a miniature throttling valve, etc. The specific structure is not limited here. Its function is to reduce the discharge speed by introducing local flow resistance at the outlet end.

[0067] It should be noted that after the liquid to be electrolyzed completes the electrolysis reaction in the residual chlorine generating chamber, if the first outlet of the residual chlorine generating chamber has no throttling structure, the electrolyte will be rapidly discharged due to the system water pressure, resulting in a short actual residence time in the chamber. Especially when the inlet water pressure is high, even if the electrolysis current is constant, the electrochemical reaction time per unit volume of liquid is still insufficient, resulting in low chloride ion conversion rate and substandard hypochlorous acid concentration. Therefore, by setting an output flow limiter 220 at the first outlet, a moderate back pressure can be formed in the residual chlorine generating chamber, effectively slowing down the electrolyte outflow rate. This not only prolongs the actual residence time of the liquid to be electrolyzed in the electrode area, but also makes the liquid level or filling state in the chamber more stable, avoiding electrode exposure or violent fluctuations in the gas-liquid interface due to instantaneous leakage. More importantly, the stable outlet resistance makes the flow velocity distribution in the entire chamber more uniform, which helps to improve current efficiency and reaction consistency.

[0068] Understandably, although the output flow restrictor 220 is located at the first outlet of the residual chlorine generator 100 and directly restricts the discharge flow rate of the electrolyte, in a continuously flowing closed system, the inlet and outlet flow rates must be equal under steady-state conditions. Therefore, when the output flow restrictor 220 reduces the outlet flow capacity through throttling, the flow rate of the entire flow path is restricted, thereby indirectly but effectively reducing the total flow rate of the electrolyte flowing through the residual chlorine generation chamber. In other words, the outlet flow restriction increases the system flow resistance, causing the liquid flow rate entering and passing through the residual chlorine generation chamber to decrease synchronously under the same driving pressure.

[0069] In one embodiment, such as Figure 3 and Figure 4 As shown, the output current limiter 220 includes an output tube 221 and a blocking member 222. The output tube 221 is connected to the first outlet of the residual chlorine generator 100. The blocking member 222 is located at the first outlet of the residual chlorine generator 100. The blocking member 222 and the first outlet of the residual chlorine generator 100 form a narrowed flow channel. The flow cross-sectional area of ​​the narrowed flow channel is smaller than the flow cross-sectional area of ​​the first outlet, so as to reduce the electrolyte output through the first outlet of the residual chlorine generator 100.

[0070] The output tube 221 refers to the component that is connected to the first outlet of the residual chlorine generator 100 and provides a channel for electrolyte flow. It can be implemented by straight pipe, bent pipe or other tubular structure with flow guiding function, and is not specifically limited here.

[0071] The blocking element 222 is directly disposed inside the first outlet or at the outlet end face of the residual chlorine generator 100, and together with the inner wall of the first outlet, forms a narrowed flow channel. The flow cross-sectional area of ​​this narrowed flow channel is smaller than the original flow cross-sectional area of ​​the first outlet of the residual chlorine generator 100, thereby creating a throttling effect on the discharge of electrolyte and effectively reducing the overall flow rate. The blocking element 222 can be implemented in various forms: for example, an annular boss fixed to the outlet end face with a central opening forming a small-diameter passage; or an integrally formed inward-curving step or baffle structure within the outlet channel, leaving peripheral gaps for electrolyte passage. Regardless of the form used, its purpose is to form a flow-limiting structure together with the body of the residual chlorine generator 100.

[0072] In one embodiment, such as Figure 7 As shown, the output tube 221 has a first end and a second end opposite to each other. The first end of the output tube 221 is connected to the first outlet of the residual chlorine generator 100, and the second end of the output tube 221 extends outward from the side of the residual chlorine generator 100 corresponding to the blocking member 222, so that the output tube 221 and the residual chlorine generator 100 are set at an acute angle.

[0073] The acute angle is greater than 0 degrees and less than 90 degrees, but the specific angle is not specified here.

[0074] It is important to note that in the water softener 20 system, the output of the residual chlorine generator 10 typically needs to be connected to components such as the ejector 410 or mixing chamber. This requires the output pipe 221 to be connected vertically downwards to the ejector 410 or mixing chamber to ensure stable ejection negative pressure, smooth brine intake, and thorough mixing of the electrolyte and water. Figure 7 As shown, this is an installed configuration with the output pipe 221 vertically downwards and the residual chlorine generator 100 tilted downwards. Under these installation conditions, if the output pipe 221 is vertically inserted into the inlet of the ejector 410, the residual chlorine generator 100 will naturally form an upward angle relative to the horizontal plane, placing its internal constricted flow channel (i.e., the first outlet of the residual chlorine generation chamber) at the higher end of the chamber. Consequently, after entering the residual chlorine generation chamber, the electrolyte tends to accumulate at the bottom of the chamber due to gravity, ensuring the entire chamber is filled with electrolyte. This effectively prolongs the residence time of the electrolyte in the electrode area, preventing it from flowing out rapidly due to gravity or pressure, thus improving electrolysis efficiency.

[0075] In one embodiment, such as Figure 1 and Figure 2As shown, the current limiting component 200 includes an input current limiter 210 and an output current limiter 220; the input current limiter 210 is located at the first inlet of the residual chlorine generator 100 and is used to reduce the flow rate of the electrolyte flowing into the residual chlorine generating chamber; the output current limiter 220 is located at the first outlet of the residual chlorine generator 100 and is used to reduce the flow rate of the electrolyte flowing through the residual chlorine generating chamber.

[0076] It is understood that the specific structures of the input current limiter 210 and the output current limiter 220 can be respectively adopted in the form described in the foregoing embodiments, which have at least all the beneficial effects mentioned above, and will not be repeated here.

[0077] It is important to emphasize that by setting up flow-limiting structures at both the inlet and outlet ends, bidirectional coordinated regulation of the liquid flowing through the residual chlorine generation chamber can be achieved. The input flow limiter 210 suppresses excessive liquid inflow from the source, while the output flow limiter 220 delays liquid discharge by establishing back pressure. The two work together to extend the effective residence time of the electrolyte in the electrode area and improve the electrolysis efficiency.

[0078] In one embodiment, such as Figure 2 as well as Figures 8 to 10 As shown, the residual chlorine generator 100 is a tubular shell extending axially, with a residual chlorine generating chamber formed inside. The electrode assembly 300 includes a first electrode plate 310, a second electrode plate 320, a first electrical connector 330, and a second electrical connector 340. The first electrode plate 310 and the second electrode plate 320 are disposed in the residual chlorine generating chamber and are arranged radially and relatively spaced apart from each other. The first electrical connector 330 and the second electrical connector 340 are disposed on the outer wall of the residual chlorine generator 100. The first electrode plate 310 is electrically connected to the first electrical connector 330 through a conductive path, and the second electrode plate 320 is electrically connected to the second electrical connector 340 through a conductive path. The first electrical connector 330 and the second electrical connector 340 are used to connect an external power source to form an electrolytic electric field between the first electrode plate 310 and the second electrode plate 320.

[0079] In this embodiment, the first electrode plate 310 is the anode, and the second electrode plate 320 is the cathode; the first electrical connector 330 is the anode input terminal, and the second electrical connector 340 is the cathode input terminal.

[0080] The residual chlorine generator 100 is a tubular shell extending along the axial direction, forming a closed residual chlorine generating chamber inside. The shell can be cylindrical, square, or other geometric cross-sections suitable for fluid passage and electrode mounting; the specific shape is not limited.

[0081] The first electrode plate 310 and the second electrode plate 320 are disposed within the residual chlorine generating chamber and arranged radially at a distance from each other, i.e., they are located on opposite sides of the chamber's cross-section, parallel to each other and maintaining a fixed distance. This symmetrical arrangement ensures that the electrolytic electric field is uniformly distributed across the cross-section of the residual chlorine generating chamber, effectively avoiding excessively high or low local current densities, thereby improving the chloride ion oxidation efficiency and current utilization rate. Furthermore, the first electrode plate 310 and the second electrode plate 320 extend along the length of the residual chlorine generator 100, i.e., they extend axially to fill the entire residual chlorine generating chamber.

[0082] The first electrical connector 330 and the second electrical connector 340 are disposed on the outer wall of the residual chlorine generator 100, and are electrically connected to the corresponding electrode plates through internal conductive paths, such as leads, conductive posts, or metal inserts. An external power supply applies a DC voltage through these two electrical connectors, establishing a stable electric field between the two electrode plates, driving the chloride ions in the liquid to be electrolyzed to undergo an oxidation reaction on the anode surface, generating chlorine-containing bactericidal substances such as hypochlorous acid and sodium hypochlorite. Furthermore, arranging the first electrical connector 330 and the second electrical connector 340 on the outer wall of the housing not only facilitates power supply wiring and maintenance, but more importantly, completely isolates the high-voltage electrical connection points from the electrolyte, avoiding the risk of leakage or short circuit due to contact with the electrolyte.

[0083] Optionally, the distance between the first electrode plate 310 and the second electrode plate 320 is set to approximately 3mm-8mm. While ensuring sufficient space for the electrolysis reaction, this effectively reduces the cross-sectional flow area of ​​the residual chlorine generation chamber, thereby increasing the flow rate of the liquid within the chamber under the same flow conditions. This enhances the scouring effect on the electrode surface, promptly removing microbubbles generated during electrolysis and preventing them from adhering and forming an insulating layer that hinders the electrochemical reaction. Furthermore, the accelerated fluid turnover rate helps maintain stable ion concentrations near the electrode interface, reducing concentration polarization and improving current efficiency.

[0084] In one embodiment, such as Figures 8 to 10 As shown, there are multiple electrode assemblies 300. The first electrode plate 310 and the second electrode plate 320 of each electrode assembly 300 are paired together and arranged sequentially in the residual chlorine generating chamber along the axial direction of the residual chlorine generator 100. Multiple electrode assemblies 300 are connected in series. The second electrical connector 340 of the previous electrode assembly 300 is electrically connected to the first electrical connector 330 of the next electrode assembly 300. The first electrical connector 330 of the front electrode assembly 300 and the second electrical connector 340 of the rear electrode assembly 300 are used to connect to a power source.

[0085] It is understood that the first electrode plate 310 of each electrode assembly 300 is electrically connected to its corresponding first electrical connector 330 through an internal conductive path, while the second electrode plate 320 is electrically connected to its corresponding second electrical connector 340 through another independent conductive path; both the first electrical connector 330 and the second electrical connector 340 are disposed on the outer wall of the residual chlorine generator 100. Multiple electrode assemblies 300 connected in series means that each electrode assembly 300 is electrically connected end-to-end to form a single current path, that is, the second electrical connector 340 of the preceding electrode assembly 300 is directly electrically connected to the first electrical connector 330 of the following electrode assembly 300, so that the same current flows sequentially through each electrode pair, thereby completing multi-stage continuous electrolysis under the condition that the total voltage is the sum of the voltages of each stage. Figure 8 As shown, the left and right sides are respectively the first electrical connector 330 and the second electrical connector 340 of two different electrode assemblies 300, while Figure 8 This demonstrates a series connection of two electrode assemblies 300, with the second electrical connector 340 of the left electrode assembly 300 connected to the first electrical connector 330 of the right electrode assembly 300 via a connecting wire. Figure 8 (As shown in Figure A) is connected, and the first electrical connector 330 of the left electrode assembly 300 and the second electrical connector 340 of the right electrode assembly 300 are used to connect to the positive and negative terminals of the power supply, respectively.

[0086] In each electrode assembly 300, the first electrode plate 310 and the second electrode plate 320 are paired together and arranged sequentially along the axial direction of the residual chlorine generator 100 within the residual chlorine generating chamber. This means that... Figure 10 As shown, the electrode pairs (first electrode plate 310 + second electrode plate 320) of each electrode assembly 300 are arranged radially at intervals, while the electrode pairs of multiple electrode assemblies 300 are arranged at intervals along the flow direction of the electrolyte (i.e., the axial direction of the residual chlorine generator 100). The gaps between adjacent electrode pairs prevent short circuits, and the whole assembly forms an axially extending multi-stage electrolysis region. This arrangement ensures that all parts of the residual chlorine generation chamber can perform electrolysis.

[0087] It should be noted that the series design of multiple electrode assemblies 300 can keep the current of the entire circuit at a low level. Taking two electrode assemblies 300 in series as an example, the current of the entire circuit can be kept at a relatively low level. Compared with a single pair of electrodes, the current can be reduced by half, and the requirements for the power supply and control system are lower.

[0088] This application also provides a water softener 20, which includes a residual chlorine generator 10 as described above. It should be noted that the specific implementation of the residual chlorine generator 10 is the same as described in the above embodiments. Since this water softener 20 adopts all the technical solutions of all the above embodiments, it also has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated further here.

[0089] In one embodiment, such as Figure 11 As shown, the water softener 20 also includes an ejector 410 and a water softener tank 420. The ejector 410 includes a second inlet, a third inlet, and a second outlet that are interconnected. The second inlet is used to connect to a water source, and the third inlet is connected to the first outlet of the residual chlorine generator 10. The ejector 410 is used to mix the water source and the chlorine-containing disinfectant solution and then output it through the second outlet. The water outlet of the water softener tank 420 is connected to the second outlet of the ejector 410.

[0090] Optionally, the water softener 420 can be a resin tank filled with sodium-type cation exchange resin. This resin adsorbs calcium and magnesium ions from the raw water and releases sodium ions during the softening stage, thereby reducing water hardness. During the sterilization stage, the resin tank receives sterilizing solution from the sterilization module to kill bacteria, biofilms, and other microbial contaminants adhering to the resin surface and the inner wall of the tank. After the sterilization module completes the injection of sterilizing solution and ensures sufficient contact, the water softener 420 has an outlet to discharge waste liquid containing residual sterilizing components and impurities.

[0091] Optionally, such as Figure 11 As shown, the water softener 20 may also include a brine tank for storing saturated or preset concentration brine solutions. The brine tank is connected to the input end of the electrolysis device via a pipeline to stably provide the required raw materials for the electrolysis process.

[0092] Optionally, such as Figure 11 As shown, the output end of the jet injector 410 can be connected to the inlet of the soft water tank 420 via a water distributor 430. The water distributor 430 can evenly distribute the disinfectant to the cross-section or different height areas of the soft water tank 420, thereby improving the disinfection coverage and disinfection efficiency and avoiding local dead corners.

[0093] In a practical application scenario, such as Figure 11 As indicated by the fluid path, when the water softener 20 enters the regeneration or periodic sterilization cycle, the brine tank supplies brine to the residual chlorine generator 10. The chlorine-containing sterilizing solution generated by electrolysis flows from its first outlet into the third inlet of the ejector 410, and after being mixed and diluted with the raw water in the ejector 410, it is evenly injected into the resin tank through the water distributor 430 to disinfect the resin and the inner wall of the tank in all directions, effectively killing bacteria and biofilm. After sterilization, the waste liquid is discharged through the resin tank outlet, and then the system is flushed and the softened water supply is restored.

[0094] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no technical conflict, the various technical features mentioned in the various embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A residual chlorine generating device, characterized in that, The residual chlorine generating device includes: A residual chlorine generator has a residual chlorine generating chamber and a first inlet and a first outlet connected to the residual chlorine generating chamber. An electrode assembly is provided in the residual chlorine generating chamber. The residual chlorine generator is used to electrolyze the electrolyte to be electrolyzed through the first inlet to generate a chlorine-containing bactericidal liquid, which is then output through the first outlet. A flow limiting component is provided on the residual chlorine generator, and the flow limiting component is used to reduce the flow rate of the electrolyte flowing through the residual chlorine generation chamber.

2. The residual chlorine generating device as described in claim 1, characterized in that, The current limiting component includes an input current limiter, which is located at the first inlet of the residual chlorine generator and is used to reduce the flow rate of the electrolyte flowing into the residual chlorine generating chamber.

3. The residual chlorine generating device as described in claim 2, characterized in that, The input current limiter includes: An input pipe, one end of which is connected to the first inlet of the residual chlorine generator; A flow-limiting core is disposed in the input tube. The flow-limiting core has a buffer cavity and a flow-limiting inlet and a flow-limiting outlet connected to the buffer cavity. The flow-limiting inlet, the buffer cavity, the flow-limiting outlet and the first inlet of the residual chlorine generator are connected in sequence. The diameter of the flow-limiting inlet and the flow-limiting outlet is smaller than the diameter of the first inlet of the residual chlorine generator. The buffer chamber is used to convert the electrolyte that flows in at a first flow rate through the flow-limiting inlet into a second flow rate, and then outputs it to the residual chlorine generator through the flow-limiting outlet.

4. The residual chlorine generating device as described in claim 3, characterized in that, The current limiting core includes a current limiting plug and a current limiting bracket. The current limiting bracket has a first section and a second section connected to each other. The first section has a first flow channel, and the second section has a second flow channel. The current limiting plug has a third flow channel. The current limiting plug is disposed in the first section of the current limiting bracket. The third flow channel, the first flow channel, and the second flow channel are connected in sequence. The flow cross-sectional area of ​​the second flow channel is larger than the flow cross-sectional area of ​​the third flow channel and smaller than the flow cross-sectional area of ​​the first flow channel. Wherein, the third flow channel of the flow-limiting plug is the flow-limiting inlet, the first flow channel of the flow-limiting bracket is the buffer cavity, and the second flow channel of the flow-limiting bracket is the flow-limiting outlet.

5. The residual chlorine generating device as described in claim 4, characterized in that, The input current limiter also includes a limiting block, which is disposed on the inner wall of the input tube body on the side of the current limiting plug away from the current limiting bracket. The limiting block is used to abut against and limit the current limiting plug in the axial direction of the input tube body.

6. The residual chlorine generating device as described in claim 4, characterized in that, A fixing block is provided on the side of the second section of the flow limiting bracket away from the first section. The fixing block extends in a first direction, which intersects with the extension direction of the second flow channel. The fixing block has a first side and a second side arranged opposite to each other. The first side of the fixing block is attached to the end of the input pipe near the residual chlorine generator, and the second side of the fixing block is attached to the residual chlorine generator.

7. The residual chlorine generating device as described in claim 4, characterized in that, The first section of the flow-limiting bracket has a third section on the side opposite to the second section, and the third section has an installation cavity in which the flow-limiting plug is disposed.

8. The residual chlorine generating device as described in claim 3, characterized in that, The residual chlorine generator also includes a filter screen, which is disposed on the input pipe and is set at a first angle to the length direction of the input pipe, the first angle being greater than zero.

9. The residual chlorine generating device as described in claim 1, characterized in that, The current limiting component includes an output current limiter, which is located at the first outlet of the residual chlorine generator and is used to reduce the flow rate of the electrolyte flowing through the residual chlorine generating chamber.

10. The residual chlorine generating apparatus as described in claim 9, characterized in that, The output current limiter includes: An output pipe body, wherein the output pipe body is connected to the first outlet of the residual chlorine generator; A blocking element is provided at the first outlet of the residual chlorine generator. The blocking element and the first outlet of the residual chlorine generator form a narrowed flow channel. The flow cross-sectional area of ​​the narrowed flow channel is smaller than the flow cross-sectional area of ​​the first outlet, so as to reduce the electrolyte output through the first outlet of the residual chlorine generator.

11. The residual chlorine generating apparatus as described in claim 10, characterized in that, The output tube has a first end and a second end. The first end of the output tube is connected to the first outlet of the residual chlorine generator. The second end of the output tube extends outward from the side of the residual chlorine generator corresponding to the blocking member, so that the output tube and the residual chlorine generator are set at an acute angle.

12. The residual chlorine generating device as described in claim 1, characterized in that, The current limiting component includes an input current limiter and an output current limiter; The input current limiter is located at the first inlet of the residual chlorine generator, and the input current limiter is used to reduce the flow rate of the electrolyte flowing into the residual chlorine generation chamber; The output current limiter is located at the first outlet of the residual chlorine generator, and the input current limiter is used to reduce the flow rate of the electrolyte flowing through the residual chlorine generation chamber.

13. The residual chlorine generating apparatus according to any one of claims 1 to 12, characterized in that, The residual chlorine generator is a tubular shell extending axially, with the residual chlorine generating chamber formed inside it; The electrode assembly includes a first electrode plate, a second electrode plate, a first electrical connector, and a second electrical connector. The first electrode plate and the second electrode plate are disposed within the residual chlorine generating chamber and are arranged radially and relatively spaced apart from each other along the residual chlorine generator. The first electrical connector and the second electrical connector are disposed on the outer wall of the residual chlorine generator. The first electrode plate is electrically connected to the first electrical connector through a conductive path, and the second electrode plate is electrically connected to the second electrical connector through a conductive path. The first electrical connector and the second electrical connector are used to connect to an external power source to form an electrolytic electric field between the first electrode plate and the second electrode plate.

14. The residual chlorine generating apparatus as described in claim 13, characterized in that, The number of electrode assemblies is multiple. The first electrode plate and the second electrode plate of each electrode assembly are paired up and arranged sequentially in the residual chlorine generating chamber along the axial direction of the residual chlorine generator. The multiple electrode assemblies are connected in series. The second electrical connector of the previous electrode assembly is electrically connected to the first electrical connector of the next electrode assembly. The first electrical connector of the front electrode assembly and the second electrical connector of the rear electrode assembly are used to connect to the power supply.

15. A water softener, characterized in that, The water softener includes a residual chlorine generating device as described in any one of claims 1 to 14.

16. The water softener as described in claim 15, characterized in that, The water softener also includes: The jet ejector includes a second inlet, a third inlet, and a second outlet that are interconnected. The second inlet is used to connect to a water source, and the third inlet is connected to the first outlet of the residual chlorine generator. The jet ejector is used to mix the water source and the chlorine-containing disinfectant solution and then output the mixture through the second outlet. A soft water tank, wherein the inlet of the soft water tank is connected to the second outlet of the jet injector.

17. The water softener as described in claim 16, characterized in that, The water softener also includes a water distributor, the input end of which is connected to the second outlet of the jet injector, and the output end of which is connected to the inlet of the water softener tank.

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