Water treatment system

Abstract

The utility model relates to a water treatment system which comprises a storage box, a first pipeline, a second pipeline and a third pipeline, the first pipeline is communicated with the water outlet end of the storage box, the first pipeline is sequentially provided with a first filter, an electro-adsorption module, a heat exchanger and a hardness detector, and the electro-adsorption module is used for conducting ion adsorption on liquid output by the first filter; the heat exchanger is used for heating liquid output by the electro-adsorption module to a preset temperature, the hardness detector is used for detecting the hardness of the liquid output by the first pipeline, the second pipeline is communicated with the output end of the first pipeline and the water return end of the storage box, and the second pipeline is provided with a first communication valve used for controlling on-off of the second pipeline; the third pipeline communicates with the output end of the first pipeline and is provided with a second filter and a second communicating valve, and the second communicating valve is located between the second filter and the heat exchanger and used for controlling the third pipeline to be connected or disconnected. The water treatment system not only can efficiently carry out softening pretreatment, but also is low in resource consumption and small in environmental pollution.

Description

Technical Field

[0001] This application relates to the field of pharmaceutical water technology, and in particular to a water treatment system. Background Technology

[0002] Purified water is a high-standard process raw material in pharmaceutical production and has a wide range of applications, including equipment cleaning, solution preparation, and finished product preparation. Typically, the raw water undergoes softening pretreatment during purified water preparation to ensure the effective operation of the subsequent reverse osmosis membrane.

[0003] Generally, the main method of softening pretreatment involves using ion exchange resin to remove scale ions from the raw water, followed by restoring the water's exchange capacity using saturated sodium chloride. However, this method not only consumes a large amount of softening salt and manpower but also discharges chlorine-containing wastewater that pollutes the environment. Therefore, how to efficiently perform softening pretreatment on raw water and effectively avoid the resource waste and environmental pollution caused by softening pretreatment has become crucial for the preparation of purified water. Utility Model Content

[0004] Therefore, it is necessary to provide a water treatment system that can efficiently soften and pretreat liquids, while also consuming fewer resources and causing less environmental pollution.

[0005] The technical solution is as follows:

[0006] A water treatment system, comprising:

[0007] Storage tank, the storage tank being used to store the liquid to be processed;

[0008] The first pipeline is connected to the water outlet of the storage tank. The first pipeline is provided with a first filter, an electro-adsorption module, a heat exchanger and a hardness tester in sequence at intervals. The electro-adsorption module is used to adsorb ions into the liquid output from the first filter. The heat exchanger is used to heat the liquid output from the electro-adsorption module to a predetermined temperature. The hardness tester is used to detect the hardness of the liquid output from the first pipeline.

[0009] The second pipeline connects the output end of the first pipeline to the return end of the storage tank. The second pipeline is equipped with a first connecting valve, which is used to control the opening and closing of the second pipeline.

[0010] The third pipeline is connected to the output end of the first pipeline. The third pipeline is equipped with a second filter and a second connecting valve. The second connecting valve is located between the second filter and the heat exchanger and is used to control the on / off state of the third pipeline.

[0011] In the aforementioned water treatment system, the liquid to be treated (such as raw water) flows from the outlet of the storage tank to the first pipeline, and sequentially passes through the first filter, the electro-adsorption module, the heat exchanger, and the hardness detector. The first filter filters the liquid to initially remove impurities. The electro-adsorption module adsorbs free ions and charged particles in the liquid under the action of an electric field, so that free ions (such as calcium and magnesium ions) in the liquid can form chemical scale and precipitate from the liquid. Therefore, the first filter and the electro-adsorption module can effectively reduce the hardness of the liquid, that is, perform softening pretreatment on the liquid. The heat exchanger heats the flowing liquid to raise the temperature of the liquid to a predetermined temperature. The hardness detector can detect the hardness of the liquid output from the first pipeline, so as to select the flow path of the liquid according to the hardness of the liquid. Specifically, when the hardness detector detects that the hardness of the liquid flowing out of the first pipeline reaches the hardness requirement for purification treatment by the second filter, the liquid flowing out of the first pipeline can be input into the third pipeline to produce purified water through the second filter. When the hardness tester detects that the hardness of the liquid flowing out of the first pipeline does not meet the hardness requirements for purification by the second filter, the liquid flowing out of the first pipeline can be returned to the storage tank through the second pipeline. This allows the first filter and the electro-adsorption module to perform repeated softening pretreatment on the liquid, ensuring that the hardness of the liquid flowing into the second filter meets the requirements for purification. Because the heat exchanger can raise the temperature of the liquid flowing through it to a predetermined temperature, the temperature of the liquid in the first pipeline rises when the liquid is returned through the second pipeline for repeated softening pretreatment. This increases the thermal motion of molecules in the liquid, which improves the adsorption efficiency of the electro-adsorption module for free ions. This, in turn, facilitates the precipitation of scale by the electro-adsorption module, thus helping to quickly reduce the hardness of the liquid and efficiently complete the softening pretreatment, improving the working efficiency of the water treatment system. Therefore, compared to the method of using ion exchange resin combined with saturated sodium chloride regeneration solution, this water treatment system not only efficiently softens the liquid to prevent scaling on the inlet side of the second filter, but also avoids the large consumption of resources and environmental pollution caused by the use of softening salt.

[0012] The technical solution will be further explained below:

[0013] In one embodiment, the water treatment system includes a controller electrically connected to the first connecting valve, the second connecting valve, and the hardness detector. The controller can control the first connecting valve to close and the second connecting valve to open when the hardness detector detects that the hardness of the liquid output from the first pipeline reaches a predetermined hardness value. The controller can also control the second connecting valve to close and the first connecting valve to open when the hardness detector detects that the hardness of the liquid output from the first pipeline is higher than the predetermined hardness value.

[0014] In one embodiment, the water treatment system includes a first booster pump, which is disposed in the first pipeline and located between the storage tank and the first filter;

[0015] And / or, the water treatment system includes a second booster pump, which is located in the third pipeline and between the second connecting valve and the second filter.

[0016] In one embodiment, the electroadsorption module includes a housing, a first electrode plate, and a second electrode plate. The housing has a cavity and an inlet end and an outlet end communicating with the cavity. The inlet end is connected to the output end of the first filter through the first pipe, and the outlet end is connected to the input end of the heat exchanger through the first pipe. The cavity is used to contain a catalyst. The first electrode plate and the second electrode plate are both installed in the cavity and are both used to connect to an external circuit.

[0017] In one embodiment, the water treatment system further includes a third filter disposed in the first pipeline and located between the heat exchanger and the electro-adsorption module.

[0018] In one embodiment, the third filter is a precision filter.

[0019] In one embodiment, the pore size of the third filter is 5 μm.

[0020] In one embodiment, the predetermined temperature is between 45°C and 55°C;

[0021] And / or, the second filter is a reverse osmosis filter.

[0022] In one embodiment, the storage tank is further provided with a water inlet for connecting to an external water source, and the water inlet is provided with a water inlet valve for opening or closing the water inlet.

[0023] In one embodiment, the water treatment system further includes an electro-deionizer disposed in the third pipeline and located on the side of the second filter opposite to the heat exchanger. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a water treatment system in one embodiment.

[0025] Figure 2 for Figure 1 A partially enlarged structural diagram of the water treatment system in the diagram.

[0026] Explanation of reference numerals in the attached figures:

[0027] 100. Water treatment system; 1. Storage tank; 11. Inlet; 12. Outlet; 13. Return; 2. First booster pump; 3. First filter; 4. Electro-adsorption module; 5. Third filter; 6. Heat exchanger; 7. Second booster pump; 8. Second filter; 9. Electro-deionizer; 110. First pipeline; 111. Hardness tester; 120. Second pipeline; 121. First connecting valve; 130. Third pipeline; 131. Second connecting valve. Detailed Implementation

[0028] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0029] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0030] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0031] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0032] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0033] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0034] See Figures 1 to 2 An embodiment of this application provides a water treatment system 100, including a storage tank 1, a first pipeline 110, a second pipeline 120, and a third pipeline 130, wherein:

[0035] Storage tank 1 is used to store liquid to be treated. The first pipeline 110 is connected to the outlet 12 of storage tank 1. The first pipeline 110 is provided with a first filter 3, an electro-adsorption module 4, a heat exchanger 6 and a hardness tester 111 in sequence. The electro-adsorption module 4 is used to perform ion adsorption on the liquid output from the first filter 3. The heat exchanger 6 is used to heat the liquid output from the electro-adsorption module 4 to a predetermined temperature. The hardness tester 111 is used to detect the hardness of the liquid output from the first pipeline 110. The second pipeline 120 connects the outlet of the first pipeline 110 to the return end 13 of storage tank 1. The second pipeline 120 is provided with a first connecting valve 121, which is used to control the opening and closing of the second pipeline 120. The third pipeline 130 is connected to the outlet of the first pipeline 110. The third pipeline 130 is provided with a second filter 8 and a second connecting valve 131. The second connecting valve 131 is located between the second filter 8 and the heat exchanger 6 and is used to control the opening and closing of the third pipeline 130.

[0036] In the aforementioned water treatment system 100, the liquid to be treated (such as raw water) flows through the outlet 12 of the storage tank 1 to the first pipeline 110, and sequentially passes through the first filter 3, the electro-adsorption module 4, the heat exchanger 6, and the hardness tester 111. The first filter 3 filters the liquid to initially remove impurities. The electro-adsorption module 4 can adsorb free ions and charged particles in the liquid under the action of an electric field, so that the free ions in the liquid (such as calcium ions and magnesium ions) can form chemical scale and precipitate from the liquid. Therefore, the first filter 3 and the electro-adsorption module 4 can... To effectively reduce the hardness of the liquid, i.e., to perform a softening pretreatment, the heat exchanger 6 heats the flowing liquid to raise its temperature to a predetermined level. The hardness detector 111 detects the hardness of the liquid output from the first pipe 110, allowing for selection of the liquid's flow path based on its hardness. Specifically, when the hardness detector 111 detects that the hardness of the liquid flowing out of the first pipe 110 meets the hardness requirements for purification by the second filter 8, the liquid flowing out of the first pipe 110 can be input into the third pipe 130 to produce purified water through the second filter 8. Conversely, when the hardness detector 111 detects that the hardness of the liquid flowing out of the first pipe 110 does not meet the hardness requirements for purification by the second filter 8, the liquid flowing out of the first pipe 110 can be returned to the storage tank 1 via the second pipe 120. This allows the first filter 3 and the electro-adsorption module 4 to perform repeated softening pretreatment on the liquid, ensuring that the hardness of the liquid flowing into the second filter 8 meets the hardness requirements for purification. Because the heat exchanger 6 can raise the temperature of the liquid flowing through it to a predetermined temperature, the temperature of the liquid in the first pipe 110 will rise when the liquid is returned through the second pipe 120 for repeated softening pretreatment. This increases the thermal motion of molecules in the liquid, which is beneficial to improving the adsorption efficiency of the electro-adsorption module 4 for free ions. This, in turn, facilitates the precipitation of scale by the electro-adsorption module 4, thereby helping to quickly reduce the hardness of the liquid and efficiently complete the softening pretreatment, thus improving the working efficiency of the water treatment system 100. Therefore, compared with the method of using ion exchange resin combined with saturated sodium chloride regeneration solution, this water treatment system 100 can not only efficiently perform softening pretreatment of the liquid to ensure that the inlet side of the second filter 8 is not prone to scaling, but also avoid the large consumption of resources and environmental pollution caused by the use of softening salt. In addition, the heat exchanger 6 can also sterilize the liquid, ensuring that the liquid flowing into the third pipe 130 is sterilized, thus improving the quality of the purified water generated by the second filter 8.

[0037] In one embodiment, see Figures 1 to 2The water treatment system 100 includes a controller. The controller is electrically connected to the first connecting valve 121, the second connecting valve 131, and the hardness detector 111. When the hardness detector 111 detects that the hardness of the liquid output from the first pipeline 110 reaches a predetermined hardness value, the controller controls the first connecting valve 121 to close and the second connecting valve 131 to open. The controller can also control the second connecting valve 131 to close and the first connecting valve 121 to open when the hardness detector 111 detects that the hardness of the liquid output from the first pipeline 110 is higher than the predetermined hardness value. Thus, the controller can determine whether the hardness of the liquid output from the first pipeline 110 meets the hardness requirements for purification by the second filter 8 based on the hardness value fed back by the hardness detector 111, and adjust the states of the first connecting valve 121 and the second connecting valve 131 in a timely manner, thereby ensuring that the hardness of the liquid flowing into the third pipeline 130 meets the hardness requirements for purification by the second filter 8. The predetermined hardness value is the highest acceptable liquid hardness value for purification by the second filter 8.

[0038] In one embodiment, see Figure 1 The water treatment system 100 includes a first booster pump 2, which is located in the first pipeline 110 and between the storage tank 1 and the first filter 3. In this way, the first booster pump 2 can increase the pressure of the liquid within the first pipeline 110, thereby ensuring that the liquid can flow smoothly into the first filter 3, the electro-adsorption module 4, the second filter 8, and the heat exchanger 6, and further ensuring that the hardness value of the liquid is reduced within the first pipeline 110 to complete the softening pretreatment.

[0039] In one embodiment, see Figures 1 to 2 The water treatment system 100 includes a second booster pump 7, which is located in the third pipeline 130 and between the second connecting valve 131 and the second filter 8. Thus, when the controller opens the second connecting valve 131, the second booster pump 7 is activated to increase the pressure of the liquid on the inlet side of the second filter 8, thereby ensuring smooth flow of the liquid within the second filter 8 to produce high-quality purified water.

[0040] Optionally, the second booster pump 7 can be electrically connected to the controller. Thus, when the controller determines that the hardness of the liquid output from the first pipeline 110 meets the hardness requirement for purification by the second filter 8, the controller can start the second booster pump 7 simultaneously by opening the second connecting valve 131 to ensure the smooth progress of the processing. Conversely, when the controller determines that the hardness of the liquid output from the first pipeline 110 does not meet the hardness requirement for purification by the second filter 8, the controller can simultaneously close the second connecting valve 131 and the second booster pump 7 to prevent the second booster pump 7 from continuously running without load.

[0041] In one embodiment, combined Figure 1 As shown, the electroadsorption module 4 includes a housing, a first electrode plate, and a second electrode plate. The housing has a cavity and an inlet and an outlet end communicating with the cavity. The inlet end is connected to the output end of the first filter 3 through a first pipe 110, and the outlet end is connected to the input end of the heat exchanger 6 through the first pipe 110. The cavity is used to contain the catalyst. Both the first and second electrode plates are installed in the cavity and are used to connect to external circuits. Thus, during the softening pretreatment process, when both the first and second electrode plates are connected to external circuits, so that one becomes the anode plate and the other becomes the cathode plate, negatively valence ions in the liquid contained in the cavity will migrate to the anode plate, and positively valence ions will migrate to the cathode plate. This results in a low pH area around the anode plate, which can generate a certain amount of strong oxidizing substances to kill microorganisms in the water. Meanwhile, a high pH area is formed around the cathode plate, and this high pH value can cause scale (such as calcium carbonate) to precipitate from the liquid and accumulate on the cathode plate, thereby softening the liquid. In this process, the catalyst installed within the cavity effectively promotes water dissociation, enabling the liquid to generate more hydroxide ions under the influence of the electric field. This, in turn, effectively promotes the formation and precipitation of calcium carbonate. Therefore, the catalyst significantly improves the adsorption efficiency of the electroadsorption module 4 for scale, thereby rapidly reducing the liquid's hardness and efficiently completing the liquid softening pretreatment. Furthermore, because the catalyst effectively promotes the electrolysis of water under the electric field, it also significantly increases the conductivity of the electroadsorption module 4, thereby reducing its energy consumption and minimizing the oxidation of the precious metals on the anode plate, thus lowering costs.

[0042] In addition, since both the first and second plates can be connected to external circuits, when dealing with scale adhering to the cathode plate during the softening pretreatment process, the polarity of the first and second plates can be reversed by reversing the circuit. This allows the scale adsorbed on the original cathode plate to be knocked off by the air bubbles generated on the original cathode plate (i.e., the anode plate after reversal), thus simplifying the scale removal operation.

[0043] In one embodiment, see Figures 1 to 2 The water treatment system 100 also includes a third filter 5, which is located in the first pipeline 110 and between the heat exchanger 6 and the electro-adsorption module 4. This allows for further filtration of the liquid treated by the electro-adsorption module 4, thereby further removing bacteria, viruses, heavy metals, and other impurities from the liquid, which helps to further reduce the hardness of the liquid.

[0044] In one embodiment, the third filter 5 is a precision filter. This filters out minute impurities in the liquid to ensure a softening effect.

[0045] Optionally, the pore size of the third filter 5 is 5 μm.

[0046] In one embodiment, the second filter 8 is a reverse osmosis filter. Thus, the second filter 8 can effectively purify the incoming liquid, ensuring that the water treatment system 100 can produce purified water that meets production requirements.

[0047] Optionally, the reverse osmosis filter is a reverse osmosis membrane.

[0048] In one embodiment, the predetermined temperature is between 45°C and 55°C. Thus, when the liquid output from the first pipe 110 is returned via the second pipe 120 for repeated softening pretreatment, this temperature can increase the molecular thermal motion of the liquid during repeated softening pretreatment, thereby contributing to the efficient execution of the softening pretreatment. Furthermore, when the liquid output from the first pipe 110 flows to the third pipe 130, the liquid at this temperature will not damage the second filter 8, thereby effectively ensuring the reliability of the water treatment system 100.

[0049] In one embodiment, see Figure 1 The storage tank 1 is also equipped with a water inlet 11, which is used to connect to an external water source. The water inlet 11 is equipped with an inlet valve, which is used to open or close the water inlet 11. In this way, when liquid that meets the hardness requirements passes through the reverse osmosis filter to generate purified water and is discharged from the water treatment system 100, the water treatment system 100 can promptly draw liquid from the water source to ensure sufficient liquid inside the water treatment system 100, thereby ensuring that the water treatment system 100 can operate continuously and stably.

[0050] In one embodiment, see Figures 1 to 2 The water treatment system 100 also includes an electro-deionizer 9, which is located in the third pipeline 130 and on the side of the second filter 8 away from the heat exchanger 6. Thus, the electro-deionizer 9 can further purify the purified water produced by the second filter 8 to produce ultrapure water with higher resistivity, thereby better meeting production needs.

[0051] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0052] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A water treatment system, characterized in that, include: Storage tank, the storage tank being used to store the liquid to be processed; The first pipeline is connected to the water outlet of the storage tank. The first pipeline is provided with a first filter, an electro-adsorption module, a heat exchanger and a hardness tester in sequence at intervals. The electro-adsorption module is used to adsorb ions into the liquid output from the first filter. The heat exchanger is used to heat the liquid output from the electro-adsorption module to a predetermined temperature. The hardness tester is used to detect the hardness of the liquid output from the first pipeline. The second pipeline connects the output end of the first pipeline to the return end of the storage tank. The second pipeline is equipped with a first connecting valve, which is used to control the opening and closing of the second pipeline. The third pipeline is connected to the output end of the first pipeline. The third pipeline is equipped with a second filter and a second connecting valve. The second connecting valve is located between the second filter and the heat exchanger and is used to control the on / off state of the third pipeline.

2. The water treatment system according to claim 1, characterized in that, The water treatment system includes a controller, which is electrically connected to the first connecting valve, the second connecting valve, and the hardness detector. When the hardness detector detects that the hardness of the liquid output from the first pipeline reaches a predetermined hardness value, the controller controls the first connecting valve to close and the second connecting valve to open. The controller can also control the second connecting valve to close and the first connecting valve to open when the hardness detector detects that the hardness of the liquid output from the first pipeline is higher than the predetermined hardness value.

3. The water treatment system according to claim 2, characterized in that, The water treatment system includes a first booster pump, which is installed in the first pipeline and located between the storage tank and the first filter; And / or, the water treatment system includes a second booster pump, which is located in the third pipeline and between the second connecting valve and the second filter.

4. The water treatment system according to claim 1, characterized in that, The electro-adsorption module includes a housing, a first electrode plate, and a second electrode plate. The housing has a cavity and an inlet end and an outlet end communicating with the cavity. The inlet end is connected to the output end of the first filter through the first pipe, and the outlet end is connected to the input end of the heat exchanger through the first pipe. The cavity is used to contain a catalyst. The first electrode plate and the second electrode plate are both installed in the cavity and are both used to connect to an external circuit.

5. The water treatment system according to any one of claims 1 to 4, characterized in that, The water treatment system further includes a third filter, which is disposed in the first pipeline and located between the heat exchanger and the electro-adsorption module.

6. The water treatment system according to claim 5, characterized in that, The third filter is a precision filter.

7. The water treatment system according to claim 6, characterized in that, The third filter has a pore size of 5 μm.

8. The water treatment system according to any one of claims 1 to 4, characterized in that, The predetermined temperature is between 45°C and 55°C; And / or, the second filter is a reverse osmosis filter.

9. The water treatment system according to any one of claims 1 to 4, characterized in that, The storage tank is also provided with a water inlet, which is used to connect with an external water source. The water inlet is equipped with a water inlet valve, which is used to open or close the water inlet.

10. The water treatment system according to any one of claims 1 to 4, characterized in that, The water treatment system also includes an electro-deionizer, which is located in the third pipeline and on the side of the second filter away from the heat exchanger.

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