Water softening system and device and equipment with water softening function

Abstract

The utility model relates to the field of water treatment, in particular to a water softening system, a water softening device and equipment with a water softening function. The system, the device and the equipment comprise a water inlet pipeline and a water outlet pipeline, wherein a salt box and a resin tank are arranged between the water inlet pipeline and the water outlet pipeline; the water inlet pipeline is connected with a salt box pipeline, a regeneration pipeline and a softening pipeline; a first electromagnetic valve is arranged on the salt box pipeline; a second electromagnetic valve is arranged on the regeneration pipeline; the regeneration pipeline is further connected with a saline water pipeline, a jet device is arranged at the position, located at the joint of the saline water pipeline, in the regeneration pipeline, and a one-way valve is further arranged on the regeneration pipeline; and a third electromagnetic valve is arranged on the softening pipeline. In the working process, all pipelines work cooperatively in the softened water treatment process and the softened substance regeneration process, so that the softened water treatment process is accurately controlled, quantitative and automatic control of all the treatment processes can be achieved, automatic switching of multiple working modes is achieved, and using is more convenient and reliable.

Description

Technical Field

[0001] This utility model relates to the field of water treatment, and in particular to a water softening system, apparatus, and equipment with water softening function. Background Technology

[0002] Soft water refers to water that contains little or no soluble calcium and magnesium compounds. As people's demands for quality in daily life increase, their requirements for water quality are also rising. Soft water can be widely used for washing in daily life, offering advantages such as high cleanliness and no limescale buildup. For example, washing one's face with soft water is highly regarded for its positive effects on beauty and skin health. Therefore, soft water products are becoming increasingly diversified, and the market demand for soft water continues to grow.

[0003] There are many water softening technologies on the market, such as ion exchange and reverse osmosis equipment, but these technologies have low automation, require highly specialized operation, and are not efficient in continuously producing soft water.

[0004] The above content constitutes the technical implementation background of this application and does not represent the technical content disclosed in the prior art. Summary of the Invention

[0005] In a first aspect, embodiments of this application provide a system that effectively avoids the problem of low automation in existing soft water preparation processes and achieves automated, long-lasting soft water preparation and softening.

[0006] The system includes:

[0007] The system includes an inlet pipe and an outlet pipe, with a salt tank and a resin tank located between them.

[0008] The water inlet pipeline is connected to the brine tank pipeline, the regeneration pipeline, and the softening pipeline;

[0009] The inlet end of the salt tank pipeline is connected to the water inlet pipeline, and the outlet end is connected to the salt tank. A first solenoid valve is provided on the salt tank pipeline.

[0010] The inlet end of the regeneration pipeline is connected to the water inlet pipeline, and the outlet end is connected to the resin tank. A second solenoid valve is provided on the regeneration pipeline. The regeneration pipeline is also connected to a brine pipeline. The inlet end of the brine pipeline is connected to the salt tank, and the outlet end is connected to the regeneration pipeline. An ejector is provided at the connection point of the brine pipeline in the regeneration pipeline. A one-way valve is also provided on the regeneration pipeline.

[0011] The inlet end of the softening pipeline is connected to the water inlet pipeline, and the outlet end is connected to the resin tank. A third solenoid valve is provided on the softening pipeline.

[0012] A hardness tester is installed on the water outlet pipe.

[0013] With the above settings, the softened water system of this application can achieve coordinated operation of various pipelines during the softened water treatment and softening material regeneration process, thereby enabling precise control of the softened water treatment process. This allows for quantitative and automated control of each treatment process, automatic switching of multiple working modes, and greater convenience and reliability in use.

[0014] In one possible implementation, a first flow meter is also provided on the salt tank pipeline.

[0015] In one possible implementation, the outlet pipe is connected to a soft water pipe and a wastewater pipe;

[0016] The inlet end of the soft water pipeline is connected to the outlet pipeline, and the outlet end is connected to the soft water outlet.

[0017] The inlet end of the wastewater pipeline is connected to the outlet pipeline, and the outlet end serves as the wastewater outlet.

[0018] In one possible implementation, a second flow meter is provided on the soft water pipeline;

[0019] In one possible implementation, a fourth solenoid valve is provided on the wastewater pipeline.

[0020] Secondly, embodiments of this application also provide a water softening device, including a housing, wherein the water softening system described in the first aspect is provided inside the housing.

[0021] Thirdly, embodiments of this application also provide a device with a water softening function, including the water softening system described in the first aspect. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the system structure according to the first embodiment of this application;

[0023] Figure 2 This is a schematic diagram of the workflow of the second embodiment of this application.

[0024] Inlet pipe 1, outlet pipe 2, brine tank 3, resin tank 4, brine tank pipe 5, regeneration pipe 6, softening pipe 7, first solenoid valve 8, second solenoid valve 9, laser detector 10, brine pipe 11, jet injector 1, check valve 13, third solenoid valve 14, first flow meter 15, softened water pipe 16, wastewater pipe 17, hardness detector 18, second flow meter 19, fourth solenoid valve 20. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be described in detail below with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0026] The first embodiment of this application provides a water softening system. In this embodiment, the water softening process of the water softening system is mainly based on the ion exchange method. The ion exchange resin adsorbs hardness ions such as calcium ions and magnesium ions in the raw water, thereby achieving the purpose of water softening treatment.

[0027] The softened water system of this embodiment includes: an inlet pipe 1 and an outlet pipe 2, with a salt tank 3 and a resin tank 4 provided between the inlet pipe 1 and the outlet pipe 2;

[0028] The water inlet pipe 1 is connected to the salt tank pipe 5, the regeneration pipe 6, and the softening pipe 7;

[0029] The inlet end of the salt tank pipeline 5 is connected to the water inlet pipeline 1, and the outlet end is connected to the salt tank 3. A first solenoid valve 8 is provided on the salt tank pipeline 5.

[0030] The inlet end of the regeneration pipeline 6 is connected to the water inlet pipeline 1, and the outlet end is connected to the resin tank 4. The regeneration pipeline 6 is equipped with a second solenoid valve 9, and the resin tank 4 is equipped with a laser detector 10. The regeneration pipeline 6 is also connected to a brine pipeline 11. The inlet end of the brine pipeline 11 is connected to the salt tank 3, and the outlet end is connected to the regeneration pipeline 6. An ejector 12 is provided at the connection point of the brine pipeline 11 in the regeneration pipeline 6, and a one-way valve 13 is also provided on the regeneration pipeline 6.

[0031] The inlet end of the softening pipe 7 is connected to the water inlet pipe 1, and the outlet end is connected to the resin tank 4. A third solenoid valve 14 is provided on the softening pipe 7.

[0032] The inlet end of the water inlet pipe 1 is connected to the water source to be treated, and is used to input the water source to be treated and the auxiliary water source used in the softening water treatment process into the softening water system of this embodiment. Generally speaking, the water inlet pipe 1 is connected to the tap water pipe or to other water storage devices.

[0033] The outlet pipe 2 is mainly used to output the soft water obtained after being treated by the softened water system of this embodiment.

[0034] The salt tank 3 is used to store salt. After injecting an appropriate amount of water into the salt tank, brine can be obtained. The obtained brine is used to rinse the ion exchange resin in the resin tank 4, displacing the adsorbed hardness ions. This process is also called ion exchange resin regeneration or resin regeneration. The laser detector 10 on the salt tank 3 is used to detect the remaining salt level in the salt tank 3.

[0035] The resin tank 4, also called the resin box, is an important component of water softening treatment. It is used to store ion exchange resin, and the water softening process is achieved through the internal ion exchange resin.

[0036] The salt tank pipeline 5 is used to control the water entering the salt tank 3 to dissolve the salt in the salt tank 3 and obtain the brine required for the regeneration of the resin tank 4. The brine produced is stored in the salt tank for later use.

[0037] The first solenoid valve 8 on the salt tank pipeline 5 is used to control the on / off state of the salt tank pipeline 5, that is, the water inlet control of the salt tank 3 is realized by controlling the on / off state of the salt tank pipeline 5. In this embodiment, in order to quantitatively control the water inlet of the salt tank, the first control component 8 also includes a first flow meter 15. Through the metering of the first flow meter 15, combined with the on / off control of the first solenoid valve 8, the salt dissolving water can be quantitatively injected into the salt tank 3, thereby quantitatively obtaining brine.

[0038] The regeneration pipeline 6 is used in conjunction with the brine tank pipeline 5 to achieve rinsing and regeneration of the resin tank 4. The second control component 9 on the regeneration pipeline 6 is mainly used to control the opening and closing of the regeneration pipeline 6. In this embodiment, when the regeneration pipeline 6 is opened, water enters the regeneration pipeline 6 from the water inlet pipeline 1. When the water flows through the ejector 12, a negative pressure is formed in the brine pipeline 11, drawing brine from the brine tank into the regeneration pipeline 6. The brine and the water in the regeneration pipeline 6 merge and are then injected into the resin tank 4 to rinse and regenerate the ion exchange resin in the resin tank 4.

[0039] The softening pipeline 7 is used to connect to the water inlet pipeline 1 to supply water to be softened. The third solenoid valve 14 on the softening pipeline 7 is used to control the water inlet of the softening pipeline 7, and the one-way valve 13 on the softening pipeline 7 can prevent the water to be softened or the softened water injected from the softening pipeline 7 into the resin tank 4 from flowing back into the brine pipeline 11 into the brine tank 3.

[0040] In this embodiment, the water outlet pipe 2 is connected to a soft water pipe 16 and a wastewater pipe 17;

[0041] The inlet end of the soft water pipeline 16 is connected to the outlet pipeline 2, and the outlet end is connected to the soft water outlet for outputting softened water.

[0042] The inlet end of the wastewater pipeline 17 is connected to the outlet pipeline, and the outlet end serves as the wastewater outlet for discharging the water used for backflushing and regenerating the resin tank 4.

[0043] The outlet pipe 2 is equipped with a hardness tester 18, which detects the hardness of the water passing through the outlet pipe 2. The hardness can be used as an evaluation index of the water softening effect and as a basis for judging the water softening or backwashing regeneration process.

[0044] The soft water pipeline 15 is equipped with a second flow meter 19, which is used to detect the outflow rate of softened water and to obtain the preparation and usage flow rate of softened water.

[0045] The wastewater pipeline 16 is equipped with a fourth solenoid valve 20, which is used to control the opening and closing of the wastewater pipeline 17. When the fourth solenoid valve is opened, wastewater is discharged from the wastewater pipeline 17.

[0046] It should be noted that the signal control of the solenoid valves and flow meters used in this embodiment needs to be controlled by a controller. The controller can be set according to the components used and perform corresponding control operations in combination with the collected data. This embodiment mainly focuses on the hardware settings. The circuit connection and control can be connected and controlled according to actual needs, which will not be described in detail in this embodiment.

[0047] The second embodiment of this application provides a softened water preparation process for switching and executing the working modules of a softening system, based on the first embodiment described above.

[0048] Combination Figure 1 and Figure 2 As shown, the softened water preparation process of the second embodiment of this application mainly includes a softened water mode and a softening substance regeneration mode.

[0049] Combination Figure 1 As shown, when operating in softened water mode, the first solenoid valve 8, the second solenoid valve 9, and the fourth solenoid valve 19 are closed, and the third solenoid valve 14 is opened. The hard water to be softened enters from the inlet pipe 1 and flows through the softening pipe 7 into the resin tank 4. After entering the resin tank 4, the hardness ions in the hard water are adsorbed by the ion exchange resin and separated from the hard water, thus achieving softening treatment. After being softened by the ion exchange resin in the resin tank, the water flows through the outlet pipe 2. After being tested for hardness by the hardness detector 18 in the outlet pipe 2, the water is discharged from the softened water pipe 15, thus obtaining usable softened water.

[0050] As the volume of softened water treatment continues to increase, the adsorption capacity of the ion exchange resin in the resin tank for hardness ions gradually decreases, and the hardness of the effluent detected by the hardness detector 18 gradually increases. When the hardness of the effluent detected by the hardness detector 18 exceeds a certain threshold, such as exceeding 50 ppm, the user is prompted that the resin needs to be regenerated. At this time, it is determined whether the user should stop taking water. After the user stops taking water, the regeneration mode is entered. If the user is prompted to stop taking water during the water taking process, but the user's water taking process has not stopped and the flow meter 19 is still measuring the flow, water continues to flow without affecting the user's water taking operation. After the user finishes taking water, the regeneration mode is entered.

[0051] When the hardness of the effluent exceeds a set threshold, for example, in this embodiment, when the hardness detector 18 detects that the hardness of the effluent is greater than 50 ppm, the device prompts the user that the resin tank 4 needs to be regenerated. After receiving the user's instruction to perform the regeneration operation, the device enters the regeneration mode. In actual devices, the regeneration mode can also be automatically executed based on the detection data of the hardness detector 18 through the controller settings.

[0052] When executing the regeneration mode, the laser detector 10 first determines whether the amount of salt in the salt tank is lower than a certain set threshold, for example, in this embodiment, it is set to be lower than 10%. When the amount of salt in the salt tank is detected to be lower than 10%, the user is reminded to add salt. At the same time, the laser detector 10 detects the amount of salt added. When the amount added reaches 80%, the regeneration mode is started. Alternatively, if the user chooses not to add salt, the regeneration mode is entered directly.

[0053] After entering regeneration mode, open the first solenoid valve 8 to inject water into the brine tank. The water volume is calculated according to the following formula:

[0054] First, based on the output water volume Q0 and the local raw water hardness H, calculate theoretically how much calcium ion n(Ca) needs to be treated to soften the water volume Q0. 2+ ),

[0055] n(Ca 2+ )=Q0*H / (1000*100)

[0056] Then convert to Na + To regenerate, calculate the theoretical mass of salt required for one regeneration (assuming Ca). 2+ Completely by Na + Displacement, in practice, requires an excess of Na. + ).

[0057] m(NaCl)=2n(Ca 2+ )*58.5

[0058] Since the solubility of sodium chloride is 35.7g and 36g at water temperatures of 0℃ and 20℃ respectively, this example uses a solubility of 36g for calculation.

[0059] m(NaCl) / (m(NaCl)+m(water))=36 / 136

[0060] The required water volume is calculated to be m (water). The water volume is controlled by the first flow meter 15. Then, the salt is dissolved for 10 minutes. After the salt is dissolved, the second solenoid valve 9 is opened and the first solenoid valve 8 and the third solenoid valve 14 are closed. At this time, water begins to enter. The water flows through the ejector 12 to generate negative pressure. The saturated brine in the salt tank 3 enters the ejector under the action of negative pressure and mixes with the raw water to form a brine of fixed concentration, which enters the resin tank 4. At this time, the resin regeneration process is carried out. The fourth solenoid valve 20 is opened and the regeneration wastewater in the resin tank 4 is discharged through the wastewater pipe 17.

[0061] Finally, check if the salinity at the outlet changes. If the salinity no longer changes, turn on the hardness meter 18 to monitor the hardness of the outlet water. If the hardness is less than 50 ppm, the regeneration of the softening material is complete, and water production can proceed normally.

[0062] Combination Figure 1 As shown, the third embodiment of this application also provides a water softening device, including a housing 21, within which the water softening system of the first embodiment is installed. This water softening device is specifically designed for softening hard water. The inlet is connected to the raw water input, and the outlet delivers treated softened water to the user. By placing the various pipes and related components of the first embodiment within the housing of the water softening device, the size of the device can be significantly reduced, resulting in miniaturization, high integration, and convenient installation and maintenance. Compared to existing water softening devices with multiple components further connected by pipes, this significantly reduces the space occupied and offers more diverse and convenient installation options, allowing for tabletop, wall-mounted, or concealed installation within cabinets where water pipes pass.

[0063] The fourth embodiment of this application also provides a device with a water softening function, including the water softening system described in the first aspect. The device with a water softening function described in this embodiment is a device that inherently has a certain water-using function, such as beauty equipment, fruit and vegetable washing equipment, washing machines, water heaters, etc. By adding a water softening system to its own water pipes, it can use softened water for its operation, thus better realizing its intended function.

[0064] The above description is merely a preferred embodiment of the present application and does not limit the scope of disclosure of the embodiments of the present application. Any equivalent structural or procedural transformations made using the description and drawings of the embodiments of the present application, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection supported by the embodiments of the present application.

Claims

1. A water softening system, characterized in that, include: The system includes an inlet pipe and an outlet pipe, with a salt tank and a resin tank located between them. The water inlet pipeline is connected to the brine tank pipeline, the regeneration pipeline, and the softening pipeline; The inlet end of the salt tank pipeline is connected to the water inlet pipeline, and the outlet end is connected to the salt tank. A first solenoid valve is provided on the salt tank pipeline. The inlet end of the regeneration pipeline is connected to the water inlet pipeline, and the outlet end is connected to the resin tank. A second solenoid valve is provided on the regeneration pipeline, and a laser detector is provided in the resin tank. The regeneration pipeline is also connected to a brine pipeline. The inlet end of the brine pipeline is connected to the salt tank, and the outlet end is connected to the regeneration pipeline. An ejector is provided at the connection point of the brine pipeline in the regeneration pipeline, and a one-way valve is also provided on the regeneration pipeline. The inlet end of the softening pipeline is connected to the water inlet pipeline, and the outlet end is connected to the resin tank. A third solenoid valve is provided on the softening pipeline. A hardness tester is installed on the water outlet pipe.

2. The softened water system as described in claim 1, characterized in that, The salt tank pipeline is also equipped with a first flow meter.

3. The softened water system as described in claim 1 or 2, characterized in that, The outlet pipe is connected to a soft water pipe and a wastewater pipe; The inlet end of the soft water pipeline is connected to the outlet pipeline, and the outlet end is connected to the soft water outlet. The inlet end of the wastewater pipeline is connected to the outlet pipeline, and the outlet end serves as the wastewater outlet.

4. The softened water system as described in claim 3, characterized in that, A second flow meter is installed on the soft water pipeline.

5. The softened water system as described in claim 3, characterized in that, A fourth solenoid valve is installed on the wastewater pipeline.

6. A water softening device, characterized in that, It includes a housing, and the housing is equipped with a water softening system according to any one of claims 1-5.

7. A device with a water softening function, characterized in that, The softening water system includes any one of claims 1-5.

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