A spectroscopic device for water quality monitoring
By employing reagent-free full-spectrum detection and a closed colorimetric cell design, this technology solves the problem of simultaneously detecting multiple pollutants and turbidity interference in existing technologies. It enables environmentally friendly water quality monitoring, meets the real-time and accurate monitoring needs of complex water bodies, and reduces operation and maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU HENGTONG HEHAI TECH CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-05-26
AI Technical Summary
Existing water quality monitoring technologies rely on chemical pretreatment or local spectral detection, making it difficult to balance environmental friendliness and accuracy. The technical problems that existing technologies cannot achieve reagent-free full-spectrum detection, resist turbidity interference, effectively detect multiple pollutants simultaneously, have low integration of sampling structure and detection unit, cannot effectively eliminate turbidity interference, have poor water reuse, and pose a risk of secondary pollution.
Employing reagent-free full-spectrum detection technology, large particles of silt are separated through sedimentation in a water storage tank. The water sampler prioritizes extracting the upper layer of water. The closed colorimetric cell design, combined with the spectral sampler covering the ultraviolet to near-infrared bands, enables simultaneous detection of multiple pollutants. After detection, the water is directly discharged back into the reservoir, avoiding the use of chemical reagents.
It achieves reagent-free full-spectrum detection, is resistant to turbidity interference, is environmentally friendly, and can accurately monitor multiple pollutants in complex water bodies in real time, reducing operation and maintenance costs, avoiding secondary pollution, and features miniaturized equipment, small footprint, and low energy consumption.
Smart Images
Figure CN224286701U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water quality monitoring technology, and specifically to a spectroscopic device for water quality monitoring. Background Technology
[0002] With increasing industrial and agricultural pollution and rising demands for water ecological protection, the efficiency, environmental friendliness, and accuracy of water quality monitoring technologies have become core industry requirements. Traditional water quality testing methods (such as chemical titration and electrochemical analysis) rely on reagent reactions or electrode contact measurements, which not only result in high reagent costs and difficult wastewater treatment but may also lead to secondary pollution. For example, the detection of indicators such as total phosphorus and COD requires the addition of hazardous chemicals such as sulfuric acid and potassium dichromate, posing challenges to operational safety and environmental friendliness.
[0003] In recent years, spectroscopic detection technology has been gradually applied to the field of water quality monitoring due to its non-contact and reagent-free characteristics. Existing technologies have proposed a water quality detection device based on ultraviolet spectroscopy, but it only performs absorbance analysis in a specific wavelength band (such as 254 nm), failing to achieve full spectral coverage. This results in insufficient simultaneous detection capability for multiple pollutants (such as organic pollutants and algae concentration). Furthermore, most spectroscopic detection devices rely on external filtration devices to pre-remove suspended solids from the water. For example, the existing technology discloses a "water quality detection system resistant to turbidity interference," which reduces the impact of turbidity through centrifugal pretreatment, but this increases equipment complexity and maintenance costs. Moreover, the pretreatment process may alter the original composition of the water, affecting the accuracy of the detection.
[0004] Regarding sampling structure design, existing devices typically employ bottom or mid-layer water sampling methods. However, such designs struggle to effectively separate surface floating pollutants (such as oil films) from bottom sediment interference, resulting in spectral data being significantly affected by sediment turbidity. Meanwhile, some online monitoring devices directly immerse the detection unit in the water, simplifying the sampling process, but prolonged exposure can lead to optical component contamination, reduced detection accuracy, and shortened equipment lifespan.
[0005] Therefore, current water quality spectral monitoring technology still faces the following bottlenecks: 1) It relies on chemical pretreatment or local spectral detection, making it difficult to balance environmental protection and the need for full-parameter analysis; 2) The integration of sampling structure and detection unit is low, making it impossible to effectively eliminate turbidity interference; 3) The water body has poor reusability and there is a risk of secondary pollution.
[0006] The above background information is provided only to assist in understanding the utility model concept and technical solution of this utility model. It does not necessarily belong to the prior art of this patent application, nor does it necessarily provide technical teaching. In the absence of clear evidence that the above information was disclosed before the filing date of this patent application, the above background information should not be used to evaluate the novelty and inventiveness of this application. Utility Model Content
[0007] To address the technical challenges of relying on chemical pretreatment or localized spectral detection, which makes it difficult to balance environmental friendliness with the need for full-parameter analysis; low integration of sampling structures and detection units, which fails to effectively eliminate turbidity interference; and poor water reuse, which poses a risk of secondary pollution, this invention proposes a spectral device for water quality monitoring. This device enables reagent-free full-spectrum detection, is resistant to turbidity interference, and is environmentally friendly, thus meeting the real-time and accurate monitoring needs of complex water bodies.
[0008] To achieve the above objectives, the technical solution of this utility model is as follows:
[0009] On the one hand, this utility model provides a spectroscopic device for water quality monitoring, including: a water storage tank, the water storage tank being used to hold the water body to be tested, a water sampler to be tested being provided on the side wall of the water storage tank near the top wall of the water storage tank, the water storage tank being connected to a detection unit through the water sampler to be tested, and the detection unit being used for full-spectrum detection of the water body data to be tested.
[0010] This invention proposes a spectroscopic device for water quality monitoring, which can achieve reagent-free full-spectrum detection, resist turbidity interference, and be environmentally friendly, so as to meet the needs of real-time and accurate monitoring of complex water bodies.
[0011] As a preferred technical solution, the detection unit includes: a colorimetric cell and a light source. The light source has a colorimetric cell placement slot for placing the colorimetric cell. The light source has a light source hole on its side wall, which is correspondingly located on both sides of the colorimetric cell.
[0012] As a preferred technical solution, the detection unit includes: a spectral acquisition device, which is disposed outside the light source and connected to the light source.
[0013] As a preferred technical solution, the colorimetric cell is provided with at least two connection holes, one of which connects the water sampler to be tested to the colorimetric cell, and the other connection hole connects the pure water storage device to the colorimetric cell to achieve cleaning of the colorimetric cell.
[0014] As a preferred technical solution, it includes: an electrical communication unit, wherein the detection unit is electrically connected to the electrical communication unit.
[0015] As a preferred technical solution, it includes: a control unit, which is used to set timing, the control unit is electrically connected to the electrical communication unit, and the control unit is electrically connected to the detection unit through a relay switch, for controlling the working state of the detection unit.
[0016] As a preferred technical solution, it includes: a cabinet body, the electrical communication unit is located on the upper layer of the cabinet body, the water storage tank, the water collector to be tested and the detection unit are located on the middle layer of the cabinet body, and the lower layer of the cabinet body is provided with a water collection pipeline.
[0017] As a preferred technical solution, the cabinet body is provided with multiple layers of shelves, the electrical communication unit is connected to the upper shelf, and the water storage tank is connected to the middle shelf.
[0018] As a preferred technical solution, one end of the water sampling pipeline is connected to the water storage tank, and the other end of the water sampling pipeline extends out of the bottom of the cabinet body and collects the water to be tested through a water sampling pump.
[0019] As a preferred technical solution, it includes: a cabinet door body, wherein the cabinet body and the cabinet door body are movably connected.
[0020] The spectroscopic device for water quality monitoring provided by this utility model has the following beneficial effects:
[0021] 1) This utility model proposes a spectroscopic device for water quality monitoring, which can realize reagent-free full-spectrum detection, resist turbidity interference and be environmentally friendly to water quality monitoring, so as to meet the real-time and accurate monitoring needs of complex water bodies;
[0022] 2) The present invention provides a spectroscopic device for water quality monitoring. The detection unit adopts full-spectrum analysis technology, covering the ultraviolet to near-infrared band (e.g., 200-1000nm). It can simultaneously acquire the spectral characteristics of multiple pollutants (e.g., organic matter, heavy metals, algae) in water. It does not rely on chemical reagents for specific reactions, thus avoiding the need for reagent addition in traditional electrochemical or spectrophotometric methods.
[0023] The reservoir separates large particles of silt from the water body through gravity sedimentation, reducing the interference of turbidity on spectral detection;
[0024] The water sampler to be tested is placed on the side wall of the reservoir near the top wall, and the upper water is sampled first to avoid mixing in the bottom sediments.
[0025] The enclosed design of the colorimetric cell within the detection unit not only prevents it from being directly exposed to high-turbidity water but also protects it from external sunlight, thus improving monitoring accuracy.
[0026] Full-spectrum detection requires no chemical reagents, and the tested water can be directly discharged back into the environment through the outlet, which meets environmental protection requirements.
[0027] By combining pretreatment in a reservoir with full-spectrum technology, this device can handle complex water body scenarios such as high-turbidity rivers and eutrophic lakes, and output multi-parameter water quality data (such as COD, total nitrogen, chlorophyll a, etc.) in real time to meet the needs of precise monitoring.
[0028] 3) The spectral device for water quality monitoring provided by this utility model has a high monitoring frequency and can achieve real-time and efficient monitoring results; it adopts advanced spectral monitoring technology, eliminating the need for chemical reagents and avoiding secondary pollution; the entire cabinet is miniaturized, occupying little space and avoiding land acquisition issues; the overall energy consumption of the equipment is lower than that of traditional shore-based stations; the spectral detection unit can detect multiple parameters, making it more integrated compared to traditional monitoring stations; the equipment has a long operation and maintenance cycle, greatly reducing operation and maintenance costs. Attached Figure Description
[0029] Figure 1 A schematic diagram of the structure of a spectroscopic device for water quality monitoring provided by this utility model;
[0030] Figure 2 A partial structural schematic diagram of a spectroscopic device for water quality monitoring provided by this utility model;
[0031] Figure 3 A front view of a partial structure of a spectroscopic device for water quality monitoring provided by this utility model;
[0032] Figure 4 A rear view of a partial structure of a spectroscopic device for water quality monitoring provided by this utility model;
[0033] Figure 5 A top view of a spectroscopic device for water quality monitoring provided by this utility model;
[0034] Figure 6 A bottom view of a spectroscopic device for water quality monitoring provided by this utility model;
[0035] Figure 7 An exploded view of the detection unit in a spectroscopic device for water quality monitoring provided by this utility model;
[0036] Among them, 1-water storage tank; 2-water sampler to be tested; 3-detection unit; 4-colorimetric cell; 5-light source; 6-colorimetric cell placement slot; 7-light source hole; 8-spectrum collector; 9-connection hole; 10-electrical communication unit; 11-water sampling pipeline; 12-upper shelf; 13-middle shelf; 14-bottom of cabinet body; 15-top of cabinet body; 16-cabinet body; 17-cabinet door body. Detailed Implementation
[0037] The preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.
[0038] like Figure 1-7As shown, this utility model provides a spectroscopic device for water quality monitoring, including: a water storage tank 1, the water storage tank 1 is used to hold the water body to be tested, the side wall of the water storage tank 1 is provided with a water sampler 2 near the top wall of the water storage tank 1, the water storage tank 1 is connected to a detection unit 3 through the water sampler 2, and the detection unit 3 is used to detect the water body data of the water body to be tested in full spectrum.
[0039] This invention proposes a spectroscopic device for water quality monitoring, which can achieve reagent-free full-spectrum detection, resist turbidity interference, and be environmentally friendly, so as to meet the needs of real-time and accurate monitoring of complex water bodies.
[0040] This invention uses a micro cabinet structure on the shore to pump water into a reservoir 1 and then monitor the water quality through a detection unit 3; the cabinet body 16 and the cabinet door body 17 are made of stainless steel, making them suitable for outdoor environments.
[0041] Preferably, such as Figure 7 As shown, the detection unit 3 includes a colorimetric cell 4 and a light source 5. The light source 5 has a colorimetric cell placement slot 6 for placing the colorimetric cell 4. The side wall of the light source 5 has a light source hole 7, which is correspondingly arranged on both sides of the colorimetric cell 4. The light source holes 7 are symmetrically distributed on both sides of the colorimetric cell 4 to ensure that the incident light and the received light path are perpendicularly aligned, so that the light can penetrate the water sample in the colorimetric cell 4 and form a stable transmission light path. This design can avoid signal attenuation caused by light scattering or refraction and improve the accuracy of spectral detection. The colorimetric cell placement slot 6 is used to accurately position the colorimetric cell 4 to ensure that its axis is aligned with the center of the light source hole and reduce optical path error caused by container offset.
[0042] Preferably, such as Figure 7 As shown, the detection unit 3 includes a spectral acquisition unit 8, which is located outside and connected to the light source 5. The spectral acquisition unit 8 adopts a highly integrated chip module unit, which can realize both light-gathering and information acquisition and transmission. The spectral acquisition unit 8 receives the transmitted or reflected light signals emitted by the light source, covering the ultraviolet-visible light band (e.g., 200-800nm), and simultaneously captures the spectral characteristics of various pollutants in the water (e.g., nitrate nitrogen, organic matter, algae), realizing full-spectrum analysis. The layout of the spectral acquisition unit being located outside the light source 5 avoids direct contact between high-turbidity water and optical components (e.g., sediment deposition or bubble adhesion). At the same time, the closed optical path shields against environmental stray light interference and is not affected by external sunlight, thus improving monitoring accuracy.
[0043] Preferably, such as Figure 7As shown, the colorimetric cell 4 is provided with at least two connection holes 9. One of the connection holes 9 connects the water sampler 2 to the colorimetric cell 4, and the other connection hole 9 connects a pure water storage container (not shown) to the colorimetric cell 4 to achieve cleaning of the colorimetric cell. The water sampler 2 injects water sample into the colorimetric cell 4 through the connection hole 9. After completing the spectral detection, the pure water storage container (not shown) injects deionized water or cleaning solution through the other connection hole 9 to rinse the residual pollutants on the inner wall of the colorimetric cell 4. This design avoids the risk of secondary pollution caused by manual disassembly and cleaning. The pure water rinsing can remove high turbidity particles (such as silt or algae) attached to the colorimetric cell 4, avoiding the interference of residues on the subsequent detection of absorbance (±3.3A range).
[0044] Preferably, such as Figure 1-4 As shown, it includes: an electrical communication unit 10, and the detection unit 3 is electrically connected to the electrical communication unit 10; the detection unit 3 transmits the monitored water quality parameters to the cloud platform or control center in real time through the electrical communication unit 10, which facilitates water quality monitoring.
[0045] Preferably, it includes: a control unit (not shown), which is used to set the timing sequence, the control unit (not shown) is electrically connected to the electrical communication unit 10, and the control unit (not shown) is electrically connected to the detection unit 3 through a relay switch (not shown) to control the working state of the detection unit 3; combined with the real-time data fed back by the electrical communication unit 10, the control unit (not shown) can dynamically adjust the working timing sequence of the detection unit 3, and the detection unit 3 is controlled by the timing sequence, so that the operation of the detection unit 3 is more refined, the power consumption is lower, and the lifespan is longer.
[0046] Preferably, such as Figure 1-4 As shown, it includes: a cabinet body 16, an electrical communication unit 10 disposed on the upper layer of the cabinet body 16, a water storage tank 1, a water collector 2 to be tested and a detection unit 3 disposed on the middle layer of the cabinet body 16, and a water collection pipeline 11 disposed on the lower layer of the cabinet body 16. The entire cabinet is miniaturized and integrated, occupies little space, and reduces the floor area.
[0047] Preferably, such as Figure 1-4 As shown, the cabinet body 16 is provided with multiple layers of shelves. The electrical communication unit 10 is connected to the upper shelf 12, and the water storage tank 1 is connected to the middle shelf 13. This structure is stable and easy to operate.
[0048] Preferably, such as Figure 1-6As shown, one end of the water sampling pipeline 11 is connected to the water storage tank 1, and the other end of the water sampling pipeline 11 extends out of the bottom of the cabinet body 16 and collects the water to be tested through a water sampling pump (not shown). The water sampling pipeline 11 connects the water storage tank 1 with the external water body to form a dynamic water circulation system, ensuring that the test samples are updated in real time and avoiding data distortion caused by microbial activity or chemical precipitation of static water samples. The use of the water storage tank 1 can effectively settle sediment and reduce the impact of turbidity on the test.
[0049] Preferably, such as Figure 1 As shown, it includes: cabinet door body 17, and the cabinet body 16 and the cabinet door body 17 are movably connected; the movable connection design between the cabinet door body 17 and the cabinet body 16 comprehensively realizes the functions of physical protection and environmental isolation.
[0050] like Figure 1-7As shown, this utility model provides a spectroscopic device for water quality monitoring, comprising: a cabinet door body 17, a cabinet body 16 movably connected to the cabinet door body 17, an electrical communication unit 10 disposed on the upper layer of the cabinet body 16, a water storage tank 1, a water sampler 2 to be tested, and a detection unit 3 disposed on the middle layer of the cabinet body 16, and a water sampling pipe 11 disposed on the lower layer of the cabinet body 16, one end of the water sampling pipe 11 being connected to the water storage tank 1, and the other end of the water sampling pipe 11 extending through the bottom of the cabinet body 16 to collect water. The cabinet body 16 contains multiple shelves for the water to be tested. The electrical communication unit 10 is connected to the upper shelf 12, and the water storage tank 1 is connected to the middle shelf 13. The water storage tank 1 is used to hold the water to be tested. A water sampler 2 is located on the side wall of the water storage tank 1 near the top wall. The water storage tank 1 is connected to the detection unit 3 through the water sampler 2. The detection unit 3 is used for full-spectrum detection of the water data to be tested. The detection unit 3 includes a colorimetric cell 4 and a light source 5. The light source 5 has an opening... The device includes a colorimetric cell placement slot 6 for placing a colorimetric cell 4, and a light source hole 7 on the side wall of the light source 5, which is correspondingly located on both sides of the colorimetric cell 4. The detection unit 3 includes a spectral acquisition device 8, which is located outside the light source 5 and connected to it. The colorimetric cell 4 has at least two connection holes 9, one of which connects the water sampler 2 to the colorimetric cell 4, and the other connects a pure water storage container (not shown) to the colorimetric cell 4 for cleaning. The detection unit 3 is electrically connected to the electrical communication unit 10. A control unit (not shown) is used to set the timing sequence and is electrically connected to the electrical communication unit 10. The control unit (not shown) is also electrically connected to the detection unit 3 via a relay switch (not shown) to control the working state of the detection unit. This device enables reagent-free full-spectrum detection, is resistant to turbidity interference, and is environmentally friendly in water quality monitoring, meeting the real-time and accurate monitoring needs of complex water bodies.
[0051] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are protected by this utility model.
Claims
1. A spectroscopic device for water quality monitoring, characterized by, include: A water storage tank is used to hold the water body to be tested. A water sampler is provided on the side wall of the water storage tank near the top wall of the water storage tank. The water storage tank is connected to a detection unit through the water sampler. The detection unit is used to detect the water body data of the water body to be tested in full spectrum.
2. The spectroscopic apparatus for water quality monitoring according to claim 1, wherein, The detection unit includes a colorimetric cell and a light source. The light source has a colorimetric cell placement slot for placing the colorimetric cell. The light source has a light source hole on its side wall, which is correspondingly located on both sides of the colorimetric cell.
3. The spectroscopic apparatus for water quality monitoring according to claim 2, wherein, The detection unit includes a spectral acquisition unit, which is located outside the light source and connected to the light source.
4. The spectroscopic device for water quality monitoring according to claim 2, characterized in that, The colorimetric cell is provided with at least two connection holes. One of the connection holes connects the water sampler to be tested to the colorimetric cell, and the other connection hole connects the pure water storage device to the colorimetric cell to achieve cleaning of the colorimetric cell.
5. The spectroscopic device for water quality monitoring according to claim 1, characterized in that, include: An electrical communication unit, wherein the detection unit is electrically connected to the electrical communication unit.
6. The spectroscopic device for water quality monitoring according to claim 5, characterized in that, include: The control unit is used to set the timing sequence. The control unit is electrically connected to the electrical communication unit and is electrically connected to the detection unit through a relay switch, and is used to control the working state of the detection unit.
7. The spectroscopic device for water quality monitoring according to claim 5, characterized in that, include: The cabinet body has an electrical communication unit located on its upper layer, a water storage tank, a water collector to be tested, and a testing unit located on its middle layer, and a water collection pipeline located on its lower layer.
8. The spectroscopic device for water quality monitoring according to claim 7, characterized in that, The cabinet body is provided with multiple layers of shelves. The electrical communication unit is connected to the upper shelf, and the water storage tank is connected to the middle shelf.
9. The spectroscopic device for water quality monitoring according to claim 7, characterized in that, One end of the water sampling pipeline is connected to the water storage tank, and the other end of the water sampling pipeline extends out of the bottom of the cabinet body and collects the water to be tested through the water sampling pump.
10. The spectroscopic device for water quality monitoring according to claim 7, characterized in that, include: Cabinet door body, wherein the cabinet body and the cabinet door body are movably connected.