Sensor for measuring the concentration of disinfectants in water

Abstract

This utility model discloses a sensor for measuring the concentration of disinfectant in water, comprising: a housing for containing water containing disinfectant; a first electrode extending into the housing; and a second electrode extending into the housing and spaced apart from the first electrode; wherein the first electrode is used to measure the concentration of disinfectant in the water. The sensor for measuring the concentration of disinfectant in water provided by this application contains water containing disinfectant in the housing, with the first electrode extending into the housing and the second electrode extending into the housing and spaced apart from the first electrode; the second electrode is a reference electrode, and the first electrode is used to directly measure the concentration of disinfectant in the water; by designing the first and second electrodes separately, with the second electrode serving as a reference electrode, it is possible to avoid the need for complete replacement if the second electrode fails.

Description

Technical Field

[0001] This invention belongs to the field of sensor technology, and specifically relates to a sensor for measuring the concentration of disinfectant in water. Background Technology

[0002] In fields such as water treatment, food processing, medical disinfection, and swimming pool management, real-time, online monitoring of the concentration of specific key solutes, such as residual chlorine in disinfectants, in mixed solutions is crucial. Currently widely used electrochemical sensors, such as residual chlorine sensors, typically employ an integrated design of fixed electrodes, such as a working electrode and a reference electrode, which has the following inherent drawbacks:

[0003] Limited functionality and poor scalability: Traditional sensors are typically designed to measure only a single parameter, such as residual chlorine. To simultaneously monitor other key related parameters, such as pH and temperature, additional independent sensors are required, resulting in low system integration, complex installation, high costs, and potential discrepancies in measurement points between different sensors, leading to data asynchrony. Utility Model Content

[0004] To address the aforementioned problems, the primary objective of this invention is to provide a sensor for measuring the concentration of disinfectants in water, thereby resolving the technical issues of existing technologies having limited measurement parameters and variations at different measurement points.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] This utility model provides a sensor for measuring the concentration of disinfectant in water, comprising:

[0007] A housing for containing the water containing the disinfectant;

[0008] The first electrode extends within the housing;

[0009] The second electrode extends within the housing and is spaced apart from the first electrode; wherein...

[0010] The first electrode is used to measure the concentration of the disinfectant in the water.

[0011] This sensor, used to measure the concentration of disinfectant in water, contains water containing disinfectant through a housing; a first electrode extends into the housing; a second electrode extends into the housing and is spaced apart from the first electrode; the second electrode serves as a reference electrode, and the first electrode is used to directly measure the concentration of disinfectant in the water, thus establishing the sensor's basic measurement function; by designing the first and second electrodes separately, with the second electrode serving as a reference electrode, the sensor eliminates the need for complete replacement if the second electrode fails.

[0012] Furthermore, the housing is connected to an expansion interface hole, and the expansion interface hole is provided with one or more.

[0013] By adding expansion interface holes to the housing, electrodes can be added according to functional requirements to increase different electrode functions. By reserving standardized expansion interfaces, the limitations of fixed functions in traditional sensors are broken. Users do not need to replace the entire sensor body; they can flexibly add functional modules according to future needs, such as adding monitoring indicators or changing electrode types. This achieves modularity and scalability. Initially, users can purchase only the basic electrode configuration, such as measuring only residual chlorine, and then upgrade later as needed, such as adding a pH electrode, avoiding the waste of initial investment and greatly reducing upgrade costs.

[0014] Furthermore, it also includes:

[0015] The third electrode is disposed at the expansion interface hole, extends into the housing, and is spaced apart from the first electrode and the second electrode;

[0016] And / or, the third electrode is detachably connected to the housing.

[0017] By integrating the third electrode into the same housing via an expansion interface, multi-parameter integrated synchronous measurement is achieved; all electrodes measure the solution at the same time and location, eliminating data errors caused by different sampling points or time delays, providing a solid foundation for subsequent data fusion and compensation, and realizing the purpose of multi-functional integration.

[0018] Furthermore, the first electrode is a residual chlorine electrode;

[0019] And / or, the first electrode is detachably connected to the housing.

[0020] The first electrode is configured as a residual chlorine electrode to measure the concentration of disinfectant in the water, and the first electrode is detachably connected to the housing.

[0021] Furthermore, the third electrode is a pH electrode.

[0022] The pH electrode is used to measure the pH value of the water inside the housing. Since the measurement value of residual chlorine is greatly affected by pH, the integrated pH electrode allows the system to acquire the current pH value in real time and use a built-in algorithm to automatically and in real time compensate and correct the residual chlorine reading, greatly improving the accuracy and reliability of the final output data and achieving automatic precision compensation and accurate measurement.

[0023] Furthermore, it also includes:

[0024] The flow meter is connected to the housing;

[0025] And / or, the flow meter is detachably connected to the housing.

[0026] The flow meter is used to measure the flow rate of the water within the housing. Since excessively low flow rates may lead to delayed response and failure to update the measurement value, while excessively high flow rates may cause bubble interference, the integrated flow meter can monitor whether the flow rate of the solution passing through the sensor is within the optimal range and issue an alarm when the flow rate is abnormal. This ensures the validity and representativeness of the measurement data, thereby enabling monitoring of measurement conditions and guaranteeing data validity.

[0027] Furthermore, it also includes:

[0028] A temperature sensor, disposed in the housing, is used to measure the temperature of the water inside the housing;

[0029] And / or, the temperature sensor is detachably connected to the housing.

[0030] Since the output signal of electrochemical sensors is significantly affected by temperature, an integrated temperature sensor can achieve real-time temperature measurement and perform temperature compensation on electrode signals such as residual chlorine value, further eliminating measurement errors caused by environmental factors, ensuring the accuracy of data across the entire temperature range, achieving temperature compensation, and further improving measurement accuracy.

[0031] Furthermore, it also includes:

[0032] A flow guide tube, one end of which penetrates through the top of the housing, and the other end of which extends to the side of the housing away from the top;

[0033] And / or, the flow guide is detachably connected to the housing.

[0034] The design of the flow guide extending to the bottom of the housing ensures uniform water mixing, resulting in faster and more accurate detection. The flow guide is designed to insert from top to bottom, forcing newly flowing solution to be guided to the bottom of the housing and then flowing evenly upwards across all electrode surfaces. This design effectively avoids water flow short-circuiting and dead zones, ensuring that the local concentration measured by the sensor is highly consistent with the solution concentration in the main pipe, making the measurements more representative. It also helps to flush the electrode surfaces, preventing dirt buildup.

[0035] Furthermore, the housing is connected to a drain outlet;

[0036] And / or, the drain outlet is detachably connected to the housing.

[0037] Furthermore, the shell is made of transparent acrylic material.

[0038] By making the housing a transparent acrylic material, operators can directly observe the working status of the electrodes inside the sensor, whether there are air bubbles, contaminant adhesion, and liquid flow status, which facilitates rapid fault diagnosis and determination of maintenance time, greatly improving the maintainability of the equipment and making it easy to see the internal condition of the housing, thus achieving visual diagnosis.

[0039] Compared with existing technologies, the beneficial effects of this application are as follows: The sensor provided in this application for measuring the concentration of disinfectant in water contains water containing disinfectant through a housing; a first electrode extends into the housing; a second electrode extends into the housing and is spaced apart from the first electrode; the second electrode serves as a reference electrode, and the first electrode is used to measure the concentration of disinfectant in the water; by designing the first and second electrodes separately, with the second electrode serving as the reference electrode, the entire sensor does not need to be replaced if the second electrode fails. This sensor for measuring the concentration of disinfectant in water is modular, multifunctional, highly integrated, and easy to maintain. It can simultaneously measure multiple relevant water quality parameters at the same point and automatically compensate and correct the core measurement values, thereby improving the overall accuracy and reliability of online monitoring. Through the combined innovation of modular expansion design, multi-parameter integration and compensation, optimized fluid structure, and visualization design, the problems of traditional electrochemical sensors—single function, accuracy subject to interference, and high maintenance costs—are comprehensively solved, providing a highly flexible, accurate, reliable, and easy-to-maintain multi-parameter water quality detection solution. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of the overall structure of the sensor for measuring the concentration of disinfectant in water provided by this utility model.

[0041] Figure 2 This is a schematic diagram of the sensor for measuring the concentration of disinfectant in water after removing the outer casing, as provided by this utility model.

[0042] In the figure: 10, housing; 11, first electrode; 12, second electrode; 13, third electrode; 14, flow meter; 15, guide tube; 16, drain port; 17, extension electrode; 18, mounting plate; 19, sample inlet valve; 20, sample outlet valve. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0044] It should be added that existing turbidity sensors also have the following technical shortcomings:

[0045] Measurement accuracy is easily affected by the environment: Electrochemical measurement results (such as residual chlorine value) are significantly interfered with by factors such as solution temperature and pH value. Traditional single sensors cannot compensate for these interferences on their own, requiring external instruments or complex algorithms for data correction, which reduces the accuracy and reliability of the measurement;

[0046] Inadequate fluid design and lack of representativeness: Many sensors have simple sample cell designs, and the solution flow may have dead zones or short circuits, which means that the local concentration measured by the sensor cannot truly represent the average concentration of the main fluid, and the measurement data lacks representativeness.

[0047] Inconvenient maintenance and upgrades: When electrodes are damaged or require upgrades, the entire sensor often needs to be replaced, resulting in high maintenance costs. Users cannot flexibly add measurement functions to meet changing needs.

[0048] Therefore, there is an urgent need for a new type of sensor for measuring the concentration of disinfectants in water, in order to address specific issues such as how to improve the sensor's functional integration and expansion flexibility, how to improve the measurement accuracy of core parameters (such as residual chlorine), how to improve the internal flow field characteristics of the sensor, and how to reduce the later maintenance and upgrade costs of the sensor.

[0049] To achieve the above objectives, the technical solution of this utility model is as follows:

[0050] See Figure 1 As shown, this utility model provides a sensor for measuring the concentration of disinfectant in water, comprising: a housing 10 for containing water containing disinfectant; a first electrode 11 extending into the housing 10; and a second electrode 12 extending into the housing 10 and spaced apart from the first electrode 11; wherein the first electrode 11 is used to measure the concentration of disinfectant in the water.

[0051] The sensor for measuring the concentration of disinfectant in water contains water containing disinfectant through a housing 10; a first electrode 11 extends into the housing 10; a second electrode 12 extends into the housing 10 and is spaced apart from the first electrode 11; the second electrode 12 is a reference electrode, and the first electrode 11 is used to directly measure the concentration of disinfectant in the water, thus establishing the basic measurement function of the sensor; by designing the first electrode 11 and the second electrode 12 separately, with the second electrode 12 serving as a reference electrode, it is possible to avoid the need for complete replacement if the second electrode 12 fails.

[0052] Furthermore, the housing 10 is provided with expansion interface holes.

[0053] By adding expansion interface holes to the housing 10, electrodes can be added according to functional requirements to enable different electrode functions. By reserving standardized expansion interfaces, the limitations of fixed traditional sensor functions are broken. Users can flexibly add functional modules according to future needs, such as adding monitoring indicators or changing electrode types, without replacing the entire sensor body. This achieves modularity and scalability. Initially, users can purchase only the basic electrode configuration, such as measuring only residual chlorine, and then upgrade as needed, such as adding a pH electrode, avoiding the waste of initial investment and greatly reducing upgrade costs.

[0054] Furthermore, the sensor for measuring the concentration of disinfectant in water provided by this utility model also includes: a third electrode 13, which is disposed at the expansion interface hole, extends into the housing 10, and is spaced apart from the first electrode 11 and the second electrode 12.

[0055] By integrating the third electrode 13 into the same housing 10 through an expansion interface, multi-parameter integrated synchronous measurement is achieved. All electrodes measure the solution at the same time and location, eliminating data errors caused by different sampling points or time delays, providing a solid foundation for subsequent data fusion and compensation, and achieving the goal of multi-functional integration.

[0056] Furthermore, the sensor for measuring the concentration of disinfectant in water provided by this utility model also includes: an extension electrode 17, which is disposed in the extension interface hole and extends into the housing 10. When there are multiple extension electrodes 17, the extension electrodes 17 are spaced apart from the first electrode 11, the second electrode 12, and the third electrode 13. When there are multiple extension electrodes 17, adjacent extension electrodes 17 are spaced apart.

[0057] Furthermore, the first electrode 11 is a residual chlorine electrode.

[0058] The first electrode 11 is set as a residual chlorine electrode to measure the concentration of disinfectant in water.

[0059] Furthermore, the third electrode 13 is a pH electrode.

[0060] The pH electrode is used to measure the pH value of the water inside the casing 10. Since the measurement value of residual chlorine is greatly affected by pH, the integrated pH electrode allows the system to acquire the current pH value in real time and use a built-in algorithm to automatically and in real time compensate and correct the residual chlorine reading, greatly improving the accuracy and reliability of the final output data and achieving automatic precision compensation and accurate measurement.

[0061] Furthermore, the sensor for measuring the concentration of disinfectant in water provided by this utility model also includes a flow meter 14, which is disposed outside the housing 10 and communicates with the housing 10.

[0062] Flow meter 14 is used to measure the flow rate of water inside housing 10. Since too low a flow rate may cause sluggish response and failure to update the measurement value, while too high a flow rate may cause bubble interference, the integrated flow meter can monitor whether the flow rate of the solution flowing through the sensor is within the optimal range and issue an alarm when the flow rate is abnormal, ensuring the validity and representativeness of the measurement data, thereby achieving monitoring of measurement conditions and ensuring data validity.

[0063] Furthermore, the sensor provided by this utility model for measuring the concentration of disinfectant in water also includes a temperature sensor (not shown) for measuring the temperature of the water inside the housing 10. Since the output signal of the electrochemical sensor is significantly affected by temperature, the integrated temperature sensor enables real-time temperature measurement and temperature compensation for electrode signals such as residual chlorine values, further eliminating measurement errors caused by environmental factors, ensuring data accuracy across the entire temperature range, achieving temperature compensation, and further improving measurement precision.

[0064] Furthermore, the sensor for measuring disinfectant concentration in water provided by this utility model also includes a flow guide tube 15, one end of which penetrates the top of the housing 10, and the other end extends to the side of the housing 10 away from the top. The design of the flow guide tube 15 extending to the bottom of the housing 10 allows for uniform water mixing, resulting in faster and more accurate detection. The flow guide tube 15 is designed to be inserted from the top to the bottom of the housing 10, forcing newly flowing solution to be guided to the bottom of the housing 10, and then flowing evenly from bottom to top across all electrode surfaces. This design effectively avoids water flow short-circuiting and the formation of dead zones, ensuring that the local concentration measured by the sensor is highly consistent with the solution concentration in the main pipe, making the measured value more representative. It also helps to flush the electrode surface and prevent dirt deposition.

[0065] Furthermore, the shell 10 is made of transparent acrylic material.

[0066] By making the housing 10 a transparent acrylic material, operators can directly observe the working status of the electrodes inside the sensor, whether there are air bubbles, the adhesion of contaminants, and the liquid flow status, which facilitates rapid fault diagnosis and determination of maintenance time, greatly improving the maintainability of the equipment and making it easy to see the internal condition of the housing, thus achieving visual diagnosis.

[0067] Furthermore, the housing 10 is connected to a drain outlet 16.

[0068] Furthermore, the housing 10 is equipped with an inlet valve 19 and an outlet valve 20 for adjusting the sample pressure inside the housing 10. By providing the inlet valve 19 and outlet valve 20 to the housing 10, the user can control the inflow and outflow rates of the sample by adjusting the inlet valve 19 and / or outlet valve 20, thereby precisely controlling the pressure and flow rate inside the sensor. By adjusting the inlet valve 19 and / or outlet valve 20 to change the flow field, active internal pressure and flow rate regulation can be achieved, allowing adjustment to the optimal flow rate to obtain stable readings.

[0069] Furthermore, the housing 10 is provided with a mounting plate 18 on its exterior, through which the high-precision turbidity sensor is assembled with the external structure.

[0070] Furthermore, any one of the first electrode 11, the second electrode 12, the third electrode 13, the flow meter 14, the temperature sensor, the guide tube 15, the drain port 16, the extension electrode 17, the mounting plate 18, the inlet valve 19, and the outlet valve 20 is detachably connected to the housing 10.

[0071] Compared with existing technologies, the beneficial effects of this application are as follows: The sensor provided in this application for measuring the concentration of disinfectant in water contains water containing disinfectant through a housing 10; a first electrode 11 extends into the housing 10; a second electrode 12 extends into the housing 10 and is spaced apart from the first electrode 11; the second electrode 12 serves as a reference electrode, and the first electrode 11 is used to measure the concentration of disinfectant in the water; by designing the first electrode 11 and the second electrode 12 separately, with the second electrode 12 serving as the reference electrode, the entire sensor does not need to be replaced if the second electrode 12 fails. This sensor for measuring the concentration of disinfectant in water is modular, multifunctional, highly integrated, and easy to maintain. It can simultaneously measure multiple relevant water quality parameters at the same point and automatically compensate and correct the core measurement values, thereby improving the overall accuracy and reliability of online monitoring. Through the combined innovation of modular expansion design, multi-parameter integration and compensation, optimized fluid structure, and visualization design, the problems of traditional electrochemical sensors—single function, accuracy subject to interference, and high maintenance costs—are comprehensively solved, providing a highly flexible, accurate, reliable, and easy-to-maintain multi-parameter water quality detection solution.

[0072] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sensor for measuring the concentration of a disinfectant in water, characterized in that include: A housing for containing the water containing the disinfectant; The first electrode extends within the housing; The second electrode extends within the housing and is spaced apart from the first electrode; wherein... The first electrode is used to measure the concentration of the disinfectant in the water.

2. The sensor for measuring concentration of a disinfectant in water according to claim 1, wherein The housing is connected to an expansion interface hole, and the expansion interface hole is provided with one or more.

3. The sensor for measuring the concentration of a disinfectant in water according to claim 2, wherein Also includes: The third electrode is disposed at the expansion interface hole, extends into the housing, and is spaced apart from the first electrode and the second electrode; And / or, the third electrode is detachably connected to the housing.

4. The sensor for measuring concentration of a disinfectant in water according to claim 1, wherein The first electrode is a residual chlorine electrode; And / or, the first electrode is detachably connected to the housing.

5. The sensor for measuring the concentration of a disinfectant in water according to claim 3, wherein The third electrode is a pH electrode.

6. The sensor for measuring concentration of a disinfectant in water according to claim 1, wherein Also includes: The flow meter is connected to the housing; And / or, the flow meter is detachably connected to the housing.

7. The sensor for measuring concentration of a disinfectant in water according to claim 1, wherein Also includes: A temperature sensor, disposed in the housing, is used to measure the temperature of the water inside the housing; And / or, the temperature sensor is detachably connected to the housing.

8. The sensor for measuring concentration of a disinfectant in water according to claim 1, wherein Also includes: A flow guide tube, one end of which penetrates through the top of the housing, and the other end of which extends to the side of the housing away from the top; And / or, the flow guide is detachably connected to the housing.

9. The sensor for measuring concentration of a disinfectant in water according to claim 1, wherein The shell is connected to a drain outlet; And / or, the drain outlet is detachably connected to the housing.

10. The sensor for measuring concentration of a disinfectant in water according to claim 1, wherein The shell is made of transparent acrylic material.

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