Water quality ammonia nitrogen content monitoring device

Abstract

The utility model belongs to but is not limited to water quality monitoring technical field discloses a water quality ammonia nitrogen content monitoring device, including the casing, and setting in the sample processing module, detection module, reagent management module, control module in casing, the sample processing module, detection module, reagent management module all are electrically connected with control module, the sample processing module includes multistage filtration structure and automatic backwash mechanism, the detection module includes composite sensor structure and temperature compensation device, the reagent management module includes trace reagent delivery system and reagent residual quantity monitoring and automatic supplement structure. The water quality ammonia nitrogen content monitoring device provided by the utility model solves the problems of complex operation, long time consumption and high cost of equipment reagent of traditional monitoring device through the unique technical scheme design.

Description

Technical Field

[0001] This utility model belongs to, but is not limited to, the field of water quality monitoring technology, and particularly relates to a water quality ammonia nitrogen content monitoring device. Background Technology

[0002] Existing online ammonia nitrogen monitors consume a large amount of reagents during the detection process and require frequent calibration and cleaning, resulting in high maintenance costs and complex operation. Some devices require frequent manual addition of reagents, which reduces the continuity and automation of monitoring.

[0003] In complex water quality environments, such as when there is turbidity, color, or other ion interference in the water, some monitoring devices are prone to detection errors. For example, devices based on colorimetry are easily affected by the color and turbidity of the water sample, leading to inaccurate measurement results.

[0004] Although some devices are equipped with sample pretreatment modules, the pretreatment effect is not good for water samples with high concentrations of suspended solids, strong corrosiveness, or special properties, which cannot effectively guarantee the accuracy of subsequent detection. In addition, the pretreatment process is relatively fixed and lacks flexibility.

[0005] While multi-parameter water quality monitors offer a wide range of functions, their overall structure is complex and their size is large, making them inconvenient to install in some space-constrained monitoring scenarios. Portable ammonia nitrogen detectors, on the other hand, are insufficient in terms of protective performance and long-term stability, making them difficult to adapt to harsh environments.

[0006] Based on the above analysis, the urgent technical problems that need to be solved in the existing technology are:

[0007] 1. High reagent consumption and maintenance costs; 2. Insufficient anti-interference ability; 3. Poor sample pretreatment effect; 4. Difficult structural integration and weak adaptability. Utility Model Content

[0008] In view of the problems existing in the prior art, this utility model provides a water quality ammonia nitrogen content monitoring device, which aims to solve the problems of complex operation, long time consumption and high equipment and reagent costs of traditional monitoring devices.

[0009] This invention is implemented as follows: a water quality ammonia nitrogen content monitoring device includes a shell, and a sample processing module, a detection module, a reagent management module, and a control module disposed within the shell; the sample processing module, the detection module, and the reagent management module are all electrically connected to the control module; the sample processing module includes a multi-stage filtration structure and an automatic backwashing mechanism; the detection module includes a composite sensor structure and a temperature compensation device; and the reagent management module includes a micro-reagent delivery system and a reagent balance monitoring and automatic replenishment structure.

[0010] Furthermore, the multi-stage filtration structure includes three-stage filtration components: a coarse filtration layer, a precision filtration layer, and an adsorption layer. Each filtration layer adopts a drawer-type design. The automatic backwashing mechanism is equipped with a backwashing pipe and a high-pressure water pump. When the pressure difference before and after the filtration layer exceeds a set threshold, the control module starts the high-pressure water pump to flush the filter in reverse.

[0011] Furthermore, the composite sensor structure consists of an electrochemical sensor and a colorimetric sensor. The electrochemical sensor employs an ion-selective electrode, and the colorimetric sensor is equipped with a dual-beam optical path system. The temperature compensation device includes a high-precision temperature sensor and a semiconductor heating and cooling chip for adjusting the water sample temperature.

[0012] Furthermore, the micro-reagent delivery system consists of a high-precision peristaltic pump and a microfluidic chip. The reagent level monitoring and automatic replenishment structure has a liquid level sensor installed inside the reagent bottle. When the reagent level is insufficient, the control module automatically connects to an external device to replenish the reagent.

[0013] Furthermore, the control module adopts a high-performance microprocessor and integrates a wireless communication module, which can automatically control the operation of each module, process detection data and upload it to the cloud or monitoring platform; the housing is made of high-strength and corrosion-resistant ABS+PC composite material with a protection level of IP65.

[0014] Furthermore, the device adopts a modular design, with the sample processing module, detection module, and reagent management module being independently disassembled and replaced; the back of the housing is equipped with an adjustable mounting bracket, which uses an articulated structure to achieve multi-angle rotation and extension.

[0015] Based on the above technical solutions and the technical problems solved, the advantages and positive effects of the technical solution to be protected by this utility model are as follows:

[0016] (1) Simplified operation process and improved monitoring efficiency: The device integrates sample processing module, detection module, reagent management module and control module, etc., to realize automated operation from sample processing to detection and data processing. The automatic backwashing mechanism automatically starts rinsing according to the pressure difference of the filter layer, without the need for frequent manual intervention; the control module has a preset program to automatically control the coordinated work of each module. Compared with the complicated operation of multiple experimental steps in traditional monitoring devices, it greatly reduces the monitoring time and significantly improves the work efficiency.

[0017] (2) Cost Reduction: The micro-reagent delivery system combines a high-precision peristaltic pump with a microfluidic chip to precisely control the reagent delivery volume. Through microchannels and reaction chambers, the reagent and water sample are thoroughly mixed, significantly reducing reagent usage. A reagent level monitoring and automatic replenishment system ensures that reagents are replenished as needed, avoiding waste and reducing reagent costs. Simultaneously, the modular design allows for independent disassembly and replacement of each module. If a component malfunctions, the entire device does not need to be replaced, reducing equipment maintenance costs. A solar charging panel charges the power supply components, reducing electricity costs and effectively controlling overall equipment and reagent costs.

[0018] (3) Improve detection accuracy: The detection module adopts a composite sensor structure, combining an electrochemical sensor and a colorimetric sensor. The electrochemical sensor responds quickly to changes in ammonia nitrogen ion concentration, while the colorimetric sensor is equipped with a dual-beam optical path system to eliminate the influence of water sample turbidity and background light. The temperature compensation device stabilizes the water sample temperature at the optimal detection temperature through a high-precision temperature sensor and a semiconductor heating and cooling chip. These multiple measures comprehensively ensure the accuracy of ammonia nitrogen content detection.

[0019] (4) Adaptable to complex environments and easy to install and maintain: The shell is made of high-strength, corrosion-resistant ABS+PC composite material with an IP65 protection rating, providing excellent waterproof and dustproof performance, and can adapt to various complex environments such as rivers, lakes, and sewage treatment plants. The adjustable mounting bracket adopts an articulated structure, enabling multi-angle rotation and extension, facilitating installation and fixation under different spatial conditions; the modular design facilitates the disassembly and replacement of each module, making the equipment easy to install, maintain, and upgrade.

[0020] (5) Achieve intelligent management: The control module integrates a wireless communication module to achieve remote control and data transmission. Operators can remotely monitor the equipment's operating status and receive detection data. The processing unit has a preset data processing algorithm that can judge and warn about the water quality status based on the trend and changes in ammonia nitrogen content data and set thresholds. This provides intelligent and scientific management methods for water quality monitoring, helping relevant departments to keep abreast of water quality dynamics and take effective measures to ensure water quality safety. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the ammonia nitrogen content monitoring device for water quality provided in this embodiment of the utility model;

[0022] Figure 2 This is a schematic diagram of the sample processing module structure provided in this embodiment of the utility model.

[0023] Figure 3 This is a schematic diagram of the detection module structure provided in this embodiment of the utility model.

[0024] Figure 4This is a schematic diagram of the reagent management module structure provided in this embodiment of the utility model.

[0025] In the diagram: 1. Housing; 2. Sample processing module; 21. Multi-stage filtration structure; 211. Coarse filter layer; 212. Precision filter layer; 213. Adsorption layer; 22. Automatic backwashing mechanism; 221. Backwashing pipeline; 222. High-pressure water pump; 3. Detection module; 31. Composite sensor structure; 311. Electrochemical sensor; 312. Colorimetric sensor; 32. Temperature compensation device; 321. High-precision temperature sensor; 322. Semiconductor heating and cooling chip; 4. Reagent management module; 41. Micro-reagent delivery system; 411. High-precision peristaltic pump; 412. Microfluidic chip; 42. Reagent balance monitoring and automatic replenishment structure; 421. Reagent bottle; 422. Liquid level sensor; 5. Control module; 6. Adjustable mounting bracket. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0027] like Figure 1 As shown, this utility model embodiment provides a water quality ammonia nitrogen content monitoring device, including a shell 1, a sample processing module 2, a detection module 3, a reagent management module 4, a control module 5, a data acquisition component, a processing unit, a display component, a power supply component, a solar charging panel, a start button, and a status indicator light;

[0028] The sample processing module 2, detection module 3, reagent management module 4, data acquisition component, processing unit, display component, power supply component, solar charging panel, start button and status indicator are all electrically connected to the control module 5;

[0029] like Figure 2 As shown, the sample processing module 2 provided in this embodiment of the present invention includes a multi-stage filtration structure 21 and an automatic backwashing mechanism 22; the multi-stage filtration structure 21 is provided with a three-stage filtration assembly inside the housing, and the automatic backwashing mechanism 22 is provided with a backwashing pipe and a high-pressure water pump next to the filtration assembly.

[0030] like Figure 3 As shown, the detection module 3 provided in this embodiment of the present invention includes a composite sensor structure 31 and a temperature compensation device 32; the composite sensor structure 31 adopts a combination of an electrochemical sensor 311 and a colorimetric sensor 312, and the temperature compensation device 32 installs a high-precision temperature sensor 321 and a semiconductor heating and cooling chip 322 inside the detection module 3.

[0031] like Figure 4 As shown, the reagent management module 4 provided in this embodiment of the present invention includes a micro-reagent delivery system 41 and a reagent balance monitoring and automatic replenishment structure 42; the micro-reagent delivery system 41 uses a combination of a high-precision peristaltic pump 411 and a microfluidic chip 412 to deliver reagents, and the reagent balance monitoring and automatic replenishment structure 42 installs a liquid level sensor 422 in the reagent bottle 421 to monitor the reagent balance in real time;

[0032] The control module 5 uses a high-performance microprocessor and integrates a wireless communication module, which can realize remote control and data transmission.

[0033] The data acquisition component is used to acquire ammonia nitrogen content data output by the detection module and transmit the data to the processing unit;

[0034] The processing unit is pre-set with a data processing algorithm. Based on the trend and changes of the collected data and the set threshold, the data processing algorithm judges and warns about the water quality status and transmits the processing results to the control module.

[0035] The display component is used to receive and display the processing results transmitted by the control module;

[0036] The power supply component provides power to the entire device, and the solar charging panel is connected to the power supply component to charge the power supply component.

[0037] The start button is used to trigger the control module to start the entire device, and the status indicator light is used to display the operating status of the device.

[0038] Furthermore, the shell is made of high-strength, corrosion-resistant ABS+PC composite material, which has good waterproof and dustproof performance, and the protection level reaches IP65, making it adaptable to a variety of complex environments.

[0039] Furthermore, the three-stage filtration assembly consists of: a first-stage coarse filter layer 211, which uses a stainless steel filter screen with a large pore size to intercept larger suspended solids and impurities in the water; a second-stage precision filter layer 212, which uses a polymer filter membrane to further filter smaller particles; and a third-stage adsorption layer 213, which is filled with adsorption materials such as activated carbon to remove color and some interfering substances from the water. Each filter layer adopts a drawer-type design for easy disassembly and replacement.

[0040] Furthermore, when the automatic backwashing mechanism 22 detects that the pressure difference before and after the filter layer exceeds a set threshold, the control module 5 starts the high-pressure water pump 222 and injects water into the filter layer in reverse through the backwashing pipe 221 to achieve automatic backwashing.

[0041] Furthermore, the electrochemical sensor 311 employs an ion-selective electrode, enabling rapid response to changes in ammonia nitrogen ion concentration; the colorimetric sensor 312 is equipped with a dual-beam optical path system, which sets up a reference optical path and a measurement optical path, effectively eliminating the influence of water sample turbidity and background light on the detection results by comparing the light intensity changes of the two beams.

[0042] Furthermore, the high-precision temperature sensor 321 monitors the water sample temperature in real time. When the temperature deviates from the set range, the control module 5 controls the semiconductor heating and cooling chip to heat or cool the water sample, stabilizing the temperature at the optimal temperature required for detection and improving detection accuracy.

[0043] Furthermore, the high-precision peristaltic pump 411 can precisely control the amount of reagent delivered, and the microfluidic chip 412 is designed with multiple microchannels and reaction chambers, so that the reagent and water sample can be fully mixed and reacted in the microchannels, greatly reducing the amount of reagent used; when the remaining reagent is lower than the set value, the control module 5 issues an alarm and automatically connects to an external reagent replenishment device to replenish the reagent into the reagent bottle 421 through the pipeline, ensuring the continuity of the monitoring process.

[0044] Furthermore, the control module 5 can automatically control the operation of the sample processing module 2, the detection module 3 and the reagent management module 4 according to a preset program, perform real-time analysis and processing of the detection data, and upload the results to a cloud server or monitoring platform.

[0045] Furthermore, it also includes an adjustable mounting bracket 6, which is set on the back of the housing 1. The bracket adopts an articulated structure, which can realize multi-angle rotation and extension, making it convenient to install and fix in different environments and spatial conditions, such as monitoring points in rivers, lakes, and sewage treatment plants.

[0046] Furthermore, the entire device adopts a modular design concept, and the sample processing module, detection module, reagent management module, etc. can all be independently disassembled and replaced.

[0047] The working principle of this water ammonia nitrogen content monitoring device is as follows:

[0048] First, the water sample enters the sample processing module 2. The water sample sequentially passes through the three-stage filtration assembly of the multi-stage filtration structure 21: the coarse filter layer 211 intercepts larger suspended solids and impurities, the precision filter layer 212 further filters small particles, and the adsorption layer 213 removes color and some interfering substances. When the pressure difference across the filter layer exceeds a set threshold, the automatic backwashing mechanism 22 is activated. The control module 5 controls the high-pressure water pump 222 to inject water into the filter layer in the reverse direction through the backwashing pipe 221, achieving automatic cleaning and ensuring efficient and stable water sample processing.

[0049] Next, the processed water sample enters the detection module 3. The electrochemical sensor 311 in the composite sensor structure 31 utilizes an ion-selective electrode to rapidly respond to changes in ammonia nitrogen ion concentration, converting the chemical signal into an electrical signal. The colorimetric sensor 312, through a dual-beam optical path system, compares the light intensity changes of the reference and measurement optical paths, eliminating the influence of water sample turbidity and background light on the detection results, and acquiring the optical signal related to ammonia nitrogen content. Simultaneously, a high-precision temperature sensor 321 monitors the water sample temperature in real time. When the temperature deviates from the set range, the control module 5 controls the semiconductor heating / cooling element 322 to heat or cool the water sample, maintaining it at the optimal temperature required for detection and ensuring the accuracy of the detection data.

[0050] Subsequently, the electrical and optical signals output by the detection module 4 are acquired by the data acquisition component in the control module 5 and transmitted to the processing unit. Based on a preset data processing algorithm, the processing unit analyzes the trends, changes, and set thresholds of the ammonia nitrogen content data to determine the water quality status and issue an early warning. The processed results are transmitted back to the control module 5, which then uploads the data to a cloud server or monitoring platform via an integrated wireless communication module. Simultaneously, the results can also be sent to a display component for local display.

[0051] In terms of reagent management, the micro-reagent delivery system 41 uses a high-precision peristaltic pump 411 to precisely control the reagent delivery volume. The microchannels and reaction chambers within the microfluidic chip 412 ensure thorough mixing and reaction of the reagent with the water sample, reducing reagent usage. A liquid level sensor 422 inside the reagent bottle 421 monitors the remaining reagent level in real time. When the remaining reagent level falls below a set value, the control module 5 issues an alarm and automatically connects to an external reagent replenishment device, replenishing the reagent bottle through a pipeline to ensure the continuity of the monitoring process.

[0052] The entire device adopts a modular design, and each module can be disassembled and replaced independently, which facilitates maintenance and upgrades. The high-strength and corrosion-resistant ABS+PC composite material shell has an IP65 protection rating. Combined with the adjustable mounting bracket at the back, it can adapt to a variety of complex environments, enabling flexible installation and stable operation.

[0053] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0054] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any modifications, equivalent substitutions and improvements made by those skilled in the art within the technical scope disclosed in this utility model, and within the spirit and principles of this utility model, should be included within the protection scope of this utility model.

Claims

1. A water quality ammonia nitrogen content monitoring device, characterized in that, The device includes a housing, and a sample processing module, a detection module, a reagent management module, and a control module disposed within the housing; the sample processing module, the detection module, and the reagent management module are all electrically connected to the control module; the sample processing module includes a multi-stage filtration structure and an automatic backwashing mechanism, the detection module includes a composite sensor structure and a temperature compensation device, and the reagent management module includes a micro-reagent delivery system and a reagent balance monitoring and automatic replenishment structure.

2. The water quality ammonia nitrogen content monitoring device according to claim 1, characterized in that, The multi-stage filtration structure includes three-stage filtration components: a coarse filtration layer, a fine filtration layer, and an adsorption layer. Each filtration layer adopts a drawer-type design. The automatic backwashing mechanism is equipped with a backwashing pipe and a high-pressure water pump. When the pressure difference before and after the filtration layer exceeds a set threshold, the control module starts the high-pressure water pump to flush the filter in reverse.

3. The water quality ammonia nitrogen content monitoring device according to claim 1, characterized in that, The composite sensor structure consists of an electrochemical sensor and a colorimetric sensor. The electrochemical sensor uses an ion-selective electrode, and the colorimetric sensor is equipped with a dual-beam optical path system. The temperature compensation device includes a high-precision temperature sensor and a semiconductor heating and cooling chip for adjusting the water sample temperature.

4. The water quality ammonia nitrogen content monitoring device according to claim 1, characterized in that, The micro-reagent delivery system consists of a high-precision peristaltic pump and a microfluidic chip. The reagent balance monitoring and automatic replenishment structure has a liquid level sensor installed inside the reagent bottle. When the reagent balance is insufficient, the control module automatically connects to an external device to replenish the reagent.

5. The water quality ammonia nitrogen content monitoring device according to claim 1, characterized in that, The control module uses a high-performance microprocessor and integrates a wireless communication module, which can automatically control the operation of each module, process detection data and upload it to the cloud or monitoring platform; the housing is made of high-strength and corrosion-resistant ABS+PC composite material with a protection level of IP65.

6. The water quality ammonia nitrogen content monitoring device according to claim 1, characterized in that, The device adopts a modular design, and the sample processing module, detection module, and reagent management module can be disassembled and replaced independently; the back of the housing is equipped with an adjustable mounting bracket, which adopts an articulated structure to achieve multi-angle rotation and extension.

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