Water quality monitoring device

Abstract

The embodiment of the application provides a water quality monitoring device, in the shell accommodating cavity of the device, a detection module and a liquid path module are arranged, the detection module includes a detection component and a detection pool, the detection component is switched through the first detection mode and the second detection mode, and the detection pool is respectively subjected to rapid fluorescence spectrum detection and absorption spectrum detection to rapidly detect the to-be-detected liquid, the liquid path module includes a liquid path component and a power component, the liquid path component and the detection pool form a liquid inlet flow channel, a liquid discharge flow channel and a cleaning flow channel, and cooperate with the switchable liquid inlet mode, the liquid discharge mode and the cleaning mode of the power component to execute the operation of discharging the liquid and cleaning the detection module, so that the water quality monitoring device automatically detects, not only can the detection component realize in-situ real-time multi-spectrum detection of the to-be-detected liquid, but also reduce the pollution influence in the detection pool and the liquid path component to improve the detection accuracy.

Description

Technical Field

[0001] This utility model relates to the technical field of water quality monitoring spectral equipment, specifically to a composite spectral in-situ water quality monitoring device. Background Technology

[0002] Currently, given the increasingly severe water pollution problem and the dual demands of sustainable development, water resource protection has become a key area of ​​environmental protection. Water quality monitoring is a crucial link in environmental protection and water resource management, as it allows for the acquisition of biochemical components in water bodies, thus providing a basis for water resource protection. Traditional water quality monitoring methods include dry chemistry, wet chemistry, electrochemistry, and biological culture methods. However, these methods have limitations in practical applications, such as the inability to achieve continuous monitoring and the potential for secondary pollution of water bodies. In contrast to these limitations, spectroscopic methods, as a non-contact and rapid multi-parameter detection technology, have shown great potential in the field of water quality monitoring.

[0003] Although spectroscopic monitoring offers higher precision and a wider spectral range, spectroscopic monitoring equipment is generally large, complex to maintain, and cannot achieve in-situ real-time monitoring. Moreover, the process of sending water samples to the laboratory for spectroscopic analysis not only wastes a lot of manpower, resources, and time, but also easily pollutes the samples and the water environment during sampling and transportation, greatly affecting the efficiency and accuracy of the detection. To address the problems of the above-mentioned technologies, this utility model proposes an in-situ water quality monitoring device based on the principle of spectroscopic analysis. Utility Model Content

[0004] In view of the above problems, this utility model proposes a water quality monitoring device, which aims to provide a water quality monitoring device that can realize in-situ real-time monitoring function and adopt multispectral analysis technology, thereby helping to improve the efficiency and accuracy of water quality monitoring device detection.

[0005] This utility model proposes a water quality monitoring device, comprising:

[0006] The shell has a accommodating cavity;

[0007] The detection module is at least partially housed in the accommodating cavity. The detection module includes a detection container with a detection pool and a detection component disposed corresponding to the detection pool. The detection pool is used to store the liquid to be tested. The detection component has a switchable first detection mode and a second detection mode. The detection component is configured to detect the fluorescence spectrum of the liquid to be tested in the detection pool in the first detection mode and to detect the absorption spectrum of the liquid to be tested in the detection pool in the second detection mode.

[0008] A liquid circuit module is at least partially housed in a receiving cavity. The liquid circuit module includes a liquid circuit component and a power component. The liquid circuit component is connected to a detection container and forms an inlet flow channel, a drain flow channel, and a cleaning flow channel that communicate with a detection pool. The power component is connected to the liquid circuit component and is used to provide power for the liquid flow in at least one of the inlet flow channel, the drain flow channel, and the cleaning flow channel.

[0009] The liquid circuit module has switchable liquid inlet mode, liquid outlet mode and cleaning mode. In liquid inlet mode, the liquid circuit module discharges the liquid to be tested into the test pool through the liquid inlet channel. In cleaning mode, the liquid circuit module discharges the cleaning liquid into the test pool through the cleaning channel. In liquid outlet mode, the liquid circuit module discharges the liquid from the test pool into the test pool through the liquid outlet channel.

[0010] In one embodiment, the liquid circuit module includes at least a first liquid circuit component, the first liquid circuit component forming a first flow channel having at least a first valve port and a second valve port;

[0011] The first valve port is used to connect with the outside of the water quality monitoring device to receive the liquid to be tested, and the second valve port is used to connect with the detection pool. When the liquid circuit module is in the liquid inlet mode, both the first valve port and the second valve port are in the conducting state so that the first flow channel constitutes at least part of the liquid inlet flow channel.

[0012] The power unit is located between the second valve port and the detection pool, and is configured to provide power for at least the liquid flow between the second valve port and the detection pool.

[0013] In one embodiment, the inlet channel further has a third valve port, and the liquid circuit module further includes a second liquid circuit assembly, the second liquid circuit assembly forming a second channel, and the second channel having at least a fourth valve port and a fifth valve port;

[0014] The fourth valve port is used to connect with the third valve port so that the second flow channel can connect with the detection pool through the first flow channel. The fifth valve port is used to connect with the outside of the water quality monitoring device so as to discharge the liquid in the detection pool. When the liquid circuit module is in the drainage mode, the second valve port, the third valve port and the fourth valve port are all in the conducting state so that the first flow channel and the second flow channel form at least part of the drainage flow channel.

[0015] In one embodiment, the drain channel also has a sixth valve port, and the second liquid path assembly also forms a third channel, one end of which is connected to the sixth valve port and the other end is used to receive cleaning liquid.

[0016] When the liquid circuit module is in cleaning mode, the second, third, fourth and sixth valve ports are all in the conducting state, so that the first, second and third flow channels constitute at least part of the cleaning flow channels.

[0017] In one embodiment, the liquid path module further includes a third liquid path component, which includes a balancing channel. One end of the balancing channel is connected to the detection pool, and the other end is connected to the outside of the water quality monitoring device to balance the air pressure in the detection pool.

[0018] In one embodiment, the detection component includes a spectral detection element, a first light source module, and a second light source module. The spectral detection element, the first light source module, and the second light source module are disposed corresponding to a detection cell. The first light source module and the spectral detection element are disposed on a first side and a second side opposite to the detection cell, respectively. The second light source module is disposed on a third side of the detection cell, and the third side is different from the first side and the second side.

[0019] In the first detection mode, the first light source module is used to output excitation light to the detection cell, and the spectral detection device is used to receive the light signal generated by the excitation light on the liquid in the detection cell.

[0020] In the second detection mode, the second light source module is used to output transmitted light to the detection cell, and the spectral detection device is used to receive the light signal generated by the liquid in the detection cell being excited by the transmitted light.

[0021] In one embodiment, the first light source module includes at least a first light source component and a second light source component, and in the first detection mode, the detection component alternately enters a first working period and a second working period. During the first working period, the first light source component outputs excitation light to the detection cell, and during the second working period, the second light source component outputs excitation light to the detection cell.

[0022] The first light source component includes at least two first LEDs, and the second light source component includes at least two second LEDs. In two adjacent first working periods, the excitation light output by the first light source component is formed by at least some different first LEDs. In two adjacent second working periods, the excitation light output by the second light source component is formed by at least some different second LEDs.

[0023] In the first detection mode, the first light source component and the second light source component alternately output excitation light to the detection cell.

[0024] In one embodiment, the first light source module includes a light source element, a heat sink element, and a lens unit. The light source element is used to generate excitation light. The lens unit is disposed between the light source element and the detection cell to focus the excitation light generated by the light source element and transmit it to the detection cell. The heat sink element is connected to the side of the light source element away from the lens unit, and the surface of the side of the heat sink element away from the lens unit has a concave-convex structure.

[0025] In one embodiment, the water quality monitoring device further includes a control module, which is at least partially housed in the accommodating cavity and is used to control the detection module and the liquid circuit module to perform detection operations;

[0026] The water quality monitoring device also includes a sealing component, which is disposed in the accommodating cavity and divides the accommodating cavity into a first cavity and a second cavity. The first cavity is used to accommodate the detection module and the liquid circuit module, and the second cavity is used to accommodate the control module.

[0027] In one embodiment, the control module includes a main control module, a light source driving module, a detection driving module, and a liquid path driving module, wherein the main control module is electrically connected to and controls the light source driving module, the detection driving module, and the liquid path driving module to drive the detection module and the liquid path module to work.

[0028] The light source driving module and the detection driving module are used to electrically connect to and drive the detection module to perform detection operations;

[0029] The hydraulic drive module is used to electrically connect the hydraulic module to drive the hydraulic components and power components to work.

[0030] This application provides a water quality monitoring device. Within the housing cavity of this device, a detection module and a liquid path module are provided. The detection module includes a detection component and a detection pool. The detection component performs rapid fluorescence spectroscopy and absorption spectroscopy detection on the liquid to be tested in the detection pool using a switchable first detection mode and a second detection mode, respectively, to quickly detect the liquid. The liquid path module includes a liquid path component and a power component. The liquid path component and the detection pool form an inlet channel, an outlet channel, and a cleaning channel. In conjunction with the switchable inlet, outlet, and cleaning modes of the power component, it performs the operations of transporting and discharging liquid and cleaning the detection module, enabling the water quality monitoring device to perform automatic detection. This not only achieves in-situ real-time multispectral detection of the liquid to be tested by the detection component but also reduces the impact of contamination in the detection pool and liquid path component, thereby improving detection accuracy. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a three-dimensional structural diagram of the water quality monitoring device provided in the embodiments of this application;

[0033] Figure 2 This is a cross-sectional structural schematic diagram of the water quality monitoring device provided in the embodiments of this application;

[0034] Figure 3 A schematic diagram of the fluid circuit connection of the fluid circuit module provided in the embodiments of this application;

[0035] Figure 4 This is a schematic diagram of the working process of the water quality monitoring device provided in the embodiments of this application;

[0036] Figure 5 A three-dimensional structural diagram of the detection module provided in an embodiment of this application;

[0037] Figure 6 This is a schematic diagram of the working optical path of the detection module provided in the embodiments of this application;

[0038] Figure 7 A three-dimensional structural diagram of the first light source assembly at a first position provided in an embodiment of this application;

[0039] Figure 8 A three-dimensional structural diagram of the first light source assembly at a second position provided in an embodiment of this application;

[0040] Figure 9 This is a schematic diagram of the control module circuit connection provided in an embodiment of this application.

[0041] Explanation of reference numerals in the attached figures:

[0042] 100. Water quality monitoring device; 10. Housing; 11. Receiving cavity; 111. First cavity; 112. Second cavity; 12. Detection port; 13. Data port; 20. Detection module; 21. Detection component; 211. Spectral detection component; 212. First light source module; 2121. First light source assembly; 2122. First LED bead; 2123. Second light source assembly; 2124. Second LED bead; 2125. Light source component; 2126. Heat sink; 2127. Lens unit; 2128. Concave-convex structure; 2129. First placement slot; 2141. Second placement slot; 2142. Temperature sensor; 2 13. Second light source module; 22. Detection container; 221. Detection pool; 222. Collection lens unit; 30. Liquid circuit module; 31. Liquid circuit component; 32. Power component; 311. First flow channel; 3111. First valve port; 3112. Second valve port; 3113. Third valve port; 312. Second flow channel; 3121. Fourth valve port; 3122. Fifth valve port; 313. Third flow channel; 3131. Sixth valve port; 314. Balance flow channel; 3141. Seventh valve port; 3142. Eighth valve port; 40. Sealing component; 50. Control module; 200. Liquid to be tested; 300. Cleaning liquid.

[0043] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0044] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0045] In the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0046] It is understood that descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0047] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0048] Please see Figures 1 to 3 , Figure 1 This is a three-dimensional structural diagram of the water quality monitoring device provided in the embodiments of this application. Figure 2 This is a cross-sectional structural diagram of the water quality monitoring device provided in the embodiments of this application. Figure 3 This is a schematic diagram of the liquid circuit connection of the liquid circuit module provided in the embodiment of this application.

[0049] like Figures 1 to 3 As shown, this utility model proposes a water quality monitoring device 100, which includes a housing 10, a detection module 20, a sealing component 40, a control module 50, and a liquid circuit module 30, wherein the housing 10 forms a receiving cavity 11.

[0050] The detection module 20 is housed within the accommodating cavity 11. The detection module 20 includes a detection container 22 with a detection pool 221 and a detection component 21 corresponding to the detection pool 221. The detection pool 221 is used to store the liquid to be tested 200. The detection component 21 has a switchable first detection mode and a second detection mode. In the first detection mode, the detection component 21 is used to detect the fluorescence spectrum of the liquid to be tested 200 in the detection pool 221. In the second detection mode, the detection component 21 is used to detect the absorption spectrum of the liquid to be tested 200 in the detection pool 221.

[0051] The liquid circuit module 30 is housed in the receiving cavity 11. The liquid circuit module 30 includes a liquid circuit component 31 and a power component 32. The liquid circuit component 31 is connected to the detection container 22 and forms an inlet flow channel, a drain flow channel, and a cleaning flow channel communicating with the detection pool 221. The power component 32 is connected to the liquid circuit component 31 and provides power for the liquid flow in the inlet flow channel, the drain flow channel, and the cleaning flow channel, enabling liquid to be input into and discharged from the detection container 22 through the liquid circuit component 31, thus cooperating with the detection component 21 in performing a first detection mode and a second detection mode. It is understood that the power component 32 includes, but is not limited to, a water pump or a peristaltic pump.

[0052] The control module 50 is partially housed in the accommodating cavity 11. The control module 50 is used to electrically connect the detection module 20 and the liquid circuit module 30 to control the detection module 20 and the liquid circuit module 30 to perform detection operations, thereby acquiring and saving detection data.

[0053] The liquid circuit module 30 has switchable liquid inlet mode, liquid outlet mode and cleaning mode. In liquid inlet mode, the liquid circuit module 30 discharges the liquid to be tested 200 into the detection pool 221 through the liquid inlet channel so that the detection component 21 can detect the liquid to be tested 200 in the detection pool 221. In cleaning mode, the liquid circuit module 30 discharges cleaning liquid 300 into the detection pool 221 through the cleaning channel so that the cleaning liquid 300 can clean the detection pool 221 and part of the liquid circuit module 30. In liquid outlet mode, the liquid circuit module 30 discharges the liquid from the detection pool 221 through the liquid outlet channel.

[0054] It is understood that the liquid circuit module 30 has switchable liquid inlet mode, liquid outlet mode, and cleaning mode, that is, the liquid circuit module 30 has three switchable working states. For example, in the liquid inlet working state, the liquid to be tested 200 can be discharged into the detection tank 221 through the liquid inlet channel of the liquid circuit module 30. In the liquid outlet working state, the liquid in the detection tank 221 can be discharged out of the detection tank 221 through the liquid outlet channel of the liquid circuit module 30. In the cleaning working state, the cleaning liquid 300 can be discharged into the detection tank 221 through the cleaning channel.

[0055] It is understandable that the inlet channel, outlet channel, and cleaning channel share some common channels.

[0056] With this configuration, the detection component 21 performs rapid fluorescence spectroscopy and absorption spectroscopy detection on the test liquid 200 in the detection pool 221 through switchable first and second detection modes, so as to quickly obtain multiple parameters of the test liquid 200. The liquid path module 30 includes a liquid path component 31 and a power component 32. The liquid path component 31 and the detection pool 221 form an inlet flow channel, an outlet flow channel and a cleaning flow channel. It works in conjunction with the power component 32, which has switchable inlet, outlet and cleaning modes, to perform the operation of conveying and discharging liquid to the detection pool 221 and cleaning the detection pool 221 and the liquid path component 31, respectively. This not only enables the detection component 21 to perform in-situ real-time multispectral detection of the test liquid 200, but also reduces the contamination of the detection pool 221 and the liquid path component 31 through the cleaning mode of the cleaning flow channel, thereby improving the detection accuracy.

[0057] In some embodiments, the housing 10 is completely sealed and waterproof. At least one end of the housing 10 has a detection port 12 and a data port 13. The detection port 12 is connected to the liquid circuit module 30, and the liquid circuit module 30 uses the detection port 12 to exchange liquid and gas with the outside of the housing 10. The data port 13 is connected to the control module 50, and the control module 50 uses the data port 13 to supply power to the control module 50 and to exchange signals and transmit data to the outside.

[0058] With this configuration, the waterproof and sealed housing 10 uses the detection port 12 and data port 13 for material transport and signal transmission, respectively. This not only protects the internal components of the water quality monitoring device 100 in complex and harsh aquatic environments, allowing them to perform normal detection work in such environments, but also enables the water quality monitoring device 100 to perform in-situ real-time water quality detection without the need for frequent adjustments to its position or for manually collecting samples and sending them to a laboratory for testing. Therefore, compared with traditional detection devices, the water quality monitoring device 100 has superior accuracy, timeliness, and convenience.

[0059] In some embodiments, a sealing component 40 is disposed within the accommodating cavity 11 and is connected to the accommodating cavity 11 with an isolation and waterproof design, thereby dividing the accommodating cavity 11 into a first cavity 111 and a second cavity 112. The first cavity 111 is used to accommodate the detection module 20 and the liquid circuit module 30 for water quality monitoring. The second cavity 112 is used to accommodate the control module 50. The control module 50 in the second cavity 112 is electrically connected to the detection module 20 and the liquid circuit module 30 in the first cavity 111 and is used to drive and control the operation of the detection module 20 and the liquid circuit module 30.

[0060] This configuration, with the sealing component 40 providing isolation and waterproofing, ensures that the first cavity 111 and the second cavity 112 are relatively independent. Even if liquid leaks from the detection module 20 and the liquid circuit module 30 within the first cavity 111, it will not affect the electrical components of the control module 50 located within the second cavity 112. This protects the control module 50, which is susceptible to liquid damage, and ensures that the devices inside the first cavity 111 and the second cavity 112 have independent working spaces, reducing mutual interference and extending the service life of the water quality monitoring device 100.

[0061] In some embodiments, the fluid circuit module 30 includes at least a first fluid circuit assembly that forms a first flow channel 311 having at least a first valve port 3111 and a second valve port 3112.

[0062] The first valve port 3111 is used to communicate with the outside of the water quality monitoring device 100 to receive the liquid to be tested 200, and the second valve port 3112 is used to communicate with the detection pool 221. When the liquid circuit module 30 is in the liquid inlet mode, both the first valve port 3111 and the second valve port 3112 are in the conducting state, so that the first flow channel 311 constitutes at least part of the liquid inlet flow channel, allowing the liquid to be tested 200 outside the water quality monitoring device 100 to enter the detection pool 221 for detection through the liquid inlet flow channel formed by the first flow channel 311, the first valve port 3111 and the second valve port 3112.

[0063] The power unit 32 is disposed between the second valve port 3112 and the detection pool 221 and is configured to provide power for the liquid flow between the second valve port 3112 and the detection pool 221 to deliver liquid from the second valve port 3112 to the detection pool 221, or to discharge liquid from the detection pool 221 from the second valve port 3112.

[0064] This configuration allows the testing pool 221 to receive and discharge liquid via the power unit 32, enabling the water quality monitoring device 100 to switch between liquid inlet mode, liquid outlet mode, and cleaning mode. Based on the liquid inlet mode and the cleaning mode of the liquid outlet mode, the water quality monitoring device 100 can clean the testing pool 221 and the liquid circuit module 30 that are in contact with the liquid to be tested 200, reducing the contamination of the testing process and test results by the residue of the liquid to be tested 200 and external pollution. Compared with traditional testing devices, it has a higher degree of automation and testing accuracy.

[0065] In some embodiments, the inlet channel also has a third valve port 3113, and the liquid circuit module 30 further includes a second liquid circuit assembly forming a second flow channel 312, and the second flow channel 312 has at least a fourth valve port 3121 and a fifth valve port 3122.

[0066] The fourth valve port 3121 is used to communicate with the third valve port 3113 so that the second flow channel 312 is connected to the detection pool 221 through the first flow channel 311. The fifth valve port 3122 is used to communicate with the outside of the water quality monitoring device 100 so as to discharge the liquid in the detection pool 221. When the liquid circuit module 30 is in the liquid discharge mode, the second valve port 3112, the third valve port 3113 and the fourth valve port 3121 are all in the conducting state so that the first flow channel 311 and the second flow channel 312 constitute at least part of the liquid discharge flow channel.

[0067] It is understood that in some embodiments, when the liquid circuit module 30 is in the liquid inlet mode, the first valve port 3111 and the second valve port 3112 are both in the conducting state, and the third valve port 3113 is in the closed state, so that the liquid to be tested 200 is delivered to the detection pool 221 through the first valve port 3111 and the second valve port 3112.

[0068] This configuration allows the first flow channel 311 of the first liquid path component and the second flow channel 312 of the second liquid path component to jointly form a drainage flow channel. Furthermore, by placing the power unit 32 in the first flow channel 311 between the second valve port 3112 and the detection tank 221, the liquid inlet mode and the liquid outlet mode can be performed by a single power unit 32. This not only allows a single power unit 32 to meet the needs of multiple modes, but also reduces equipment costs because the drainage flow channel is composed of the first flow channel 311 and the second flow channel 312.

[0069] In some embodiments, the drain channel further includes a sixth valve port 3131, and the second fluid path assembly further includes a third channel 313, one end of which is connected to the sixth valve port 3131, and the other end of which is used to receive cleaning liquid 300. It is understood that the cleaning liquid 300 includes, but is not limited to, pure water or detergent.

[0070] When the liquid circuit module 30 is in the cleaning mode, the second valve port 3112, the third valve port 3113, the fourth valve port 3121 and the sixth valve port 3131 are all in the conducting state, so that the first flow channel 311, the second flow channel 312 and the third flow channel 313 constitute at least part of the cleaning flow channel.

[0071] This configuration allows the first flow channel 311 and the second flow channel 312 to become part of the cleaning flow channel. This not only enables the liquid circuit module 30 to be in cleaning mode while cleaning the detection tank 221, but also allows the cleaning liquid 300 to clean at least a portion of the first flow channel 311 and the second flow channel 312, as well as the internal flow channel of the power component 32. This reduces the contamination of the liquid circuit module 30 with the liquid to be tested 200, thereby greatly improving the accuracy of the test. Furthermore, by using the flow channels together, the number of flow channels is reduced, which shortens the distance the liquid is transported to the detection tank 221, ensuring the detection rate of water quality testing, reducing the material cost of the device, and greatly improving the convenience of daily maintenance of the liquid circuit module 30.

[0072] It is understood that, in one embodiment, when the liquid circuit module 30 is in the cleaning mode, the first valve port 3111 and the fifth valve port 3122 are in the closed state, while the second valve port 3112, the third valve port 3113, the fourth valve port 3121 and the sixth valve port 3131 are all in the open state, so that the cleaning liquid 300 is delivered to the detection pool 221 through the second valve port 3112, the third valve port 3113, the fourth valve port 3121 and the sixth valve port 3131.

[0073] In one embodiment, when the liquid circuit module 30 is in the draining mode, the second valve port 3112, the third valve port 3113, the fourth valve port 3121 and the fifth valve port 3122 are all in the conducting state, and the first valve port 3111 and the sixth valve port 3131 are in the closed state, so that the liquid to be tested 200 is discharged from the water quality monitoring device 100 through the second valve port 3112, the third valve port 3113, the fourth valve port 3121 and the fifth valve port 3122.

[0074] In one embodiment, the sixth valve port 3131 is connected to a pure water bag through the third flow channel 313 so that pure water can be used as cleaning liquid 300 in the cleaning mode of the liquid circuit module 30.

[0075] In some embodiments, the liquid circuit module 30 is characterized in that it further includes a third liquid circuit component, which includes a balancing flow channel 314. One end of the balancing flow channel 314 is connected to the detection pool 221, and the other end is connected to the outside of the water quality monitoring device 100, so as to balance the air pressure in the detection pool 221.

[0076] In one embodiment, the balance channel 314 has a seventh valve port 3141 and an eighth valve port 3142. The seventh valve port 3141 is used to communicate with the detection pool 221, and the eighth valve port 3142 is used to communicate with the outside of the water quality monitoring device 100.

[0077] During the process of liquid being delivered or discharged from the liquid circuit module 30 to the detection tank 221, both the seventh valve port 3141 and the eighth valve port 3142 are in the conducting state, and the air pressure in the detection tank 221 is balanced with the external pressure of the water quality monitoring device 100, so that the process of liquid volume change in the detection tank 221 is not affected by air pressure. In addition, both the seventh valve port 3141 and the eighth valve port 3142 are in the closed state to reduce the contamination of external gas on the liquid circuit module 30 and the detection module 20.

[0078] This configuration ensures that the air pressure of the liquid circuit module 30 remains stable during the process of supplying or discharging liquid to the detection pool 221, thereby reducing the influence of air pressure during the detection process, improving the liquid detection rate, and enhancing the timeliness and responsiveness of the detection. Furthermore, the structure of the balance channel 314 is simple and easy to maintain.

[0079] Please see Figure 4 , Figure 4 This is a schematic diagram illustrating the working process of the water quality monitoring device provided in the embodiments of this application.

[0080] like Figure 4 As shown, in some embodiments, before the water quality monitoring device 100 detects the liquid to be tested 200, the liquid path module 30 switches to cleaning mode, and the cleaning liquid 300 is discharged into the detection tank 221 through the cleaning channel to clean the detection tank 221 and part of the liquid path module 30 before detection. After cleaning is completed, the liquid path module 30 switches to drainage mode, and the cleaning liquid 300 is discharged from the detection tank 221 through the drainage channel to complete the pre-detection cleaning. After the detection tank 221 has undergone multiple cleanings, the liquid path module 30 switches to liquid inlet mode. In the first mode, the test liquid 200 is discharged into the detection pool 221 through the inlet channel, so that the detection component 21 can detect the test liquid 200 in the detection pool 221. After the detection is completed, the liquid circuit module 30 switches to the drain mode and discharges the test liquid 200 that has been tested through the drain channel from the detection pool 221. Then, the liquid circuit module 30 switches to the cleaning mode and the drain mode in sequence, and the detection pool 221 is cleaned multiple times with the cleaning liquid 300 to clean and discharge the residual test liquid 200 in the detection pool 221 and part of the liquid circuit module 30.

[0081] This configuration allows the detection module 20 to clean the detection pool 221 and part of the liquid circuit module 30 multiple times before and after testing the liquid 200, thereby reducing the contamination of the liquid 200 by residual liquid 200 and dust from the previous test and greatly improving the accuracy of the test.

[0082] Please see Figures 5 to 6 , Figure 5 This is a three-dimensional structural diagram of the detection module provided in an embodiment of this application.Figure 6 This is a schematic diagram of the working optical path of the detection module provided in the embodiments of this application.

[0083] like Figures 5 to 6 As shown, in some embodiments, the detection component 21 includes a spectral detection element 211, a first light source module 212, and a second light source module 213. The spectral detection element 211, the first light source module 212, and the second light source module 213 are disposed corresponding to the detection cell 221. The first light source module 212 and the spectral detection element 211 are disposed on the first and second sides opposite to the detection cell 221, and the second light source module 213 is disposed on the third side of the detection cell 221, and the third side is different from the first and second sides.

[0084] In some embodiments, the second light source module 213 is disposed on the extension line connecting the spectral detector 211 and the detection cell 221, and the first light source module 212 is disposed at both ends of the extension line connecting the spectral detector 211 and the detection cell 221, so that the incident light source output by the first light source module 212 located on the first side of the detection cell 221 to the detection cell 221 is set at an angle to the emitted light source output by the detection cell 221 to the spectral detector 211 located on the second side of the detection cell 221, so that the incident light source output by the second light source module 213 located on the third side of the detection cell 221 to the detection cell 221 is set horizontally to the emitted light source output by the detection cell 221 to the spectral detector 211 located on the second side of the detection cell 221.

[0085] This configuration allows the beam receiving port of the spectral detector 211 to face the detection cell 221 directly, eliminating the need for an optical fiber connection to receive the light signal. This not only reduces energy consumption during beam transmission, helping to improve the detection and analysis sensitivity and efficiency of the spectral detector 211, but also saves internal space, making the detection component 21 smaller and more compact. As a result, the water quality monitoring device 100 can meet a wider range of complex application scenarios.

[0086] In the first detection mode, the first light source module 212 is used to output excitation light to the detection cell 221. The excitation light excites the test liquid 200 in the detection cell 221 to generate fluorescence. The spectral detection element 211 is used to receive the excitation beam generated by the excitation of the liquid in the detection cell 221 and perform fluorescence spectral detection and analysis on the excitation beam.

[0087] In the second detection mode, the second light source module 213 is used to output excitation light to the detection cell 221. The excitation light excites the test liquid 200 in the detection cell 221 to obtain a transmitted light beam. The spectral detection element 211 receives the transmitted light beam and performs absorption spectrum detection and analysis on it.

[0088] With this configuration, the detection component 21 only needs to be equipped with a single detection cell 221 and a spectral detection device 211. It can perform fluorescence and absorption spectral analysis on the liquid to be tested by switching between the first and second detection modes, thereby improving the efficiency of equipment use and reducing equipment costs. Moreover, it has richer and more flexible detection methods compared with existing detection devices.

[0089] In some embodiments, the first light source module 212 includes at least a first light source component 2121 and a second light source component 2123, which are located at both ends of the connection extension line between the spectral detector 211 and the detection cell 221, so that the liquid to be tested 200 is subjected to a first detection mode at both ends of the detection cell 221.

[0090] In the first detection mode, the detection component 21 alternately enters the first working period and the second working period, so that the first light source component 2121 and the second light source component 2123 alternately output excitation light to the detection cell 221. In the first working period, the first light source component 2121 outputs excitation light to the detection cell 221, and in the second working period, the second light source component 2123 outputs excitation light to the detection cell 221. The first light source component 2121 includes at least two first lamp beads 2122, and the second light source component 2123 includes at least two second lamp beads 2124.

[0091] Please see Figures 7 to 8 , Figure 7 A three-dimensional structural diagram of the first light source assembly at a first position provided in an embodiment of this application; Figure 8 A three-dimensional structural diagram of the first light source assembly at a second position, provided in an embodiment of this application.

[0092] like Figures 7 to 8 As shown, in some embodiments, the first light source component 2121 includes four first LED beads 2122, and the second light source component 2123 includes four second LED beads 2124. The LED beads on the first light source component 2121 and the second light source component 2123 are arranged alternately in order from high-band to low-band, so that during the detection process of the first detection mode, the LED beads on the first light source component 2121 and the second light source component 2123 are lit alternately at both ends of the detection pool 221.

[0093] This design avoids the problem of concentrated heat accumulation caused by the LEDs lighting up on a single light source component in a short period of time. It effectively reduces heat buildup and improves heat dissipation efficiency. As a result, compared with traditional water quality testing devices, it can not only greatly extend the service life of the first light source module 212, but also reduce the interference of temperature rise on the testing process and test results. It ensures that the testing process can reproduce the aquatic environmental conditions of the liquid under test 200 as much as possible, thereby ensuring the accuracy of the test results.

[0094] In some embodiments, the first light source module 212 includes a light source element 2125, a heat sink 2126, and a lens unit 2127. The light source element 2125 includes an LED and is used to generate excitation light. The lens unit 2127 is disposed between the light source element 2125 and the detection cell 221 to focus the excitation light generated by the light source element 2125 and transmit it to the detection cell 221. The heat sink 2126 is connected to the side of the light source element 2125 away from the lens unit 2127 to reduce heat accumulation during the operation of the first light source module 212 and protect the components in the first light source module 212. The surface of the heat sink 2126 away from the lens unit 2127 has a concave-convex structure 2128. The concave-convex structure 2128 is used to increase the contact area between the heat sink 2126 and the external air to increase the heat dissipation efficiency of the heat sink 2126.

[0095] In some embodiments, the first light source module 212 further includes a temperature sensor 2142. The heat sink 2126 has a first placement groove 2129 and a second placement groove 2141 at the end near the light source component 2125. The first placement groove 2129 is located within the second placement groove 2141. The first placement groove 2129 is used to place the temperature sensor 2142, and the second placement groove 2141 is used to place the light source component 2125, so that the temperature sensor 2142 is close to the light source component 2125 to obtain the internal temperature of the first light source module 212 during operation. A thermally conductive material is used to cover and fill the space between the temperature sensor 2142, the light source component 2125, and the heat sink 2126, increasing heat conduction and heat dissipation efficiency. The thermally conductive material includes, but is not limited to, thermal grease and thermal gel.

[0096] By using heat sink 2126 and thermally conductive material, not only is the heat dissipation efficiency of the first light source module 212 increased, and the internal components are protected to extend their lifespan, but the working status of the first light source module 212 can also be obtained in real time through the setting of temperature sensor 2142.

[0097] In some embodiments, a collecting lens unit 222 is provided between the detection cell 221 and the spectral detection element 211. Its function is to collect the fluorescence and transmitted light excited by the liquid to be tested in the detection cell and refract it into the spectrometer for detection and analysis, thereby improving the detection efficiency of the spectral detection element 211.

[0098] Please see Figure 9 , Figure 9 This is a schematic diagram of the control module circuit connection provided in an embodiment of this application.

[0099] like Figure 9 As shown, in one embodiment, the control module 50 includes a main control module, a light source driving module, a detection driving module, and a liquid path driving module. The main control module is electrically connected to and controls the light source driving module, the detection driving module, and the liquid path driving module to drive the detection module 20 and the liquid path module 30 to perform detection work. The light source driving module is used to electrically connect to and drive the first light source module 212 and the second light source module 213 to assist the detection module 20 in performing detection operations. The detection driving module is used to electrically connect to and drive the detection module 20 to perform detection operations. The liquid path driving module is used to electrically connect to the liquid path module 30 to drive the liquid path component 31 and the power component 32 to perform operations.

[0100] By driving and controlling the light source drive module, detection drive module, and liquid circuit drive module through the main control module, the control module 50 can realize synchronous control of each module in the water quality monitoring operation process, thereby improving the synchronization and responsiveness between the modules in the water quality monitoring operation process, and thus improving the detection speed of the water quality monitoring device 100.

[0101] In some embodiments, the control module 50 further includes an internal communication circuit, which is electrically connected to the main control module. The light source driving module includes a first light source driving circuit and a second light source driving circuit. The first light source driving circuit is electrically connected to the first light source module 212, and the second light source driving circuit is electrically connected to the second light source module 213. The internal communication circuit of the control module 50 is electrically connected to the first light source driving circuit and the second light source driving circuit respectively, thereby enabling the main control module to control the first light source module 212 and the second light source module 213. It can also transmit the real-time temperature data obtained by the temperature sensor 2142 in the first light source module 212 to the main control module for analysis and storage through the internal communication circuit.

[0102] Furthermore, the spectral detection device 211 has a spectral detection drive circuit for driving, which is electrically connected to the internal communication circuit of the control module 50, so that the main control module can not only control the spectral detection device 211 through the internal communication circuit, but also transmit the detection data of the spectral detection device 211 to the main control module for analysis and storage through the internal communication circuit.

[0103] This configuration allows the internal communication circuit of the main control module to control the spectral detection device 211, the first light source module 212, and the second light source module 213, simplifying the control process of the main control module for multiple modules and reducing redundant processes in the control process. In addition, the internal communication circuit can also transmit the temperature data of the first light source module 212 and the detection data of the spectral detection device 211 to the main control module, so that the main control module can perform control based on the collected data.

[0104] In some embodiments, the control module 50 further includes a power component control circuit and a hydraulic circuit component control circuit, and the main control module in the control module 50 is electrically connected to the power component control circuit and the hydraulic circuit component control circuit, respectively. The power component control circuit is electrically connected to the power component 32, so that the main control module controls the power component 32 through the power component control circuit, and controls the hydraulic circuit component through the hydraulic circuit component control circuit, including but not limited to controlling the opening and closing of multiple valve ports in the hydraulic circuit module 30.

[0105] In some implementations, the control module 50 further includes an external communication circuit, which is electrically connected to the main control module and is used to acquire the data stored in the main control module and the working status of the water quality monitoring device 100 and transmit it to the outside.

[0106] In some embodiments, the control module 50 acquires the spectral data of the cleaning liquid 300 and the test liquid 200 through the detection module 20, and the control module 50 calculates the corrected fluorescence spectrum of the test liquid 200 through the acquired spectral data, and obtains the type and concentration of substances contained in the test liquid 200 by modeling and calculating through convolutional neural networks or stoichiometry based on the obtained corrected fluorescence spectrum of the test liquid 200.

[0107] It should be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0108] It should also be understood that the term "and / or" as used in this specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes such combinations. It should be noted that, herein, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.

[0109] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above descriptions are merely specific implementations of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A water quality monitoring device, characterized in that, include: A housing having a receiving cavity; A detection module is at least partially housed in the accommodating cavity. The detection module includes a detection container with a detection pool and a detection component disposed corresponding to the detection pool. The detection pool is used to store a liquid to be tested. The detection component has a switchable first detection mode and a second detection mode. The detection component is configured to detect the fluorescence spectrum of the liquid to be tested in the detection pool in the first detection mode and to detect the absorption spectrum of the liquid to be tested in the detection pool in the second detection mode. A liquid circuit module is at least partially housed in the accommodating cavity. The liquid circuit module includes a liquid circuit component and a power component. The liquid circuit component is connected to the detection container and forms an inlet flow channel, a drain flow channel, and a cleaning flow channel that communicate with the detection pool. The power component is connected to the liquid circuit component and is used to provide power for the liquid flow in at least one of the inlet flow channel, the drain flow channel, and the cleaning flow channel. The liquid circuit module has a switchable liquid inlet mode, liquid outlet mode, and cleaning mode. In the liquid inlet mode, the liquid circuit module discharges the liquid to be tested into the detection pool through the liquid inlet channel. In the cleaning mode, the liquid circuit module discharges cleaning liquid into the detection pool through the cleaning channel. In the liquid outlet mode, the liquid circuit module discharges the liquid from the detection pool into the detection pool through the liquid outlet channel.

2. The water quality monitoring device as described in claim 1, characterized in that, The liquid circuit module includes at least a first liquid circuit component, the first liquid circuit component forming a first flow channel having at least a first valve port and a second valve port; The first valve port is used to communicate with the outside of the water quality monitoring device to receive the liquid to be tested, and the second valve port is used to communicate with the detection pool. When the liquid circuit module is in the liquid inlet mode, both the first valve port and the second valve port are in the conducting state, so that the first flow channel constitutes at least part of the liquid inlet flow channel. The power unit is disposed between the second valve port and the detection pool, and is configured to provide power for at least the liquid flow between the second valve port and the detection pool.

3. The water quality monitoring device as described in claim 2, characterized in that, The liquid inlet channel also has a third valve port, and the liquid circuit module further includes a second liquid circuit assembly, the second liquid circuit assembly forming a second flow channel, and the second flow channel having at least a fourth valve port and a fifth valve port; The fourth valve port is used to communicate with the third valve port so that the second flow channel communicates with the detection pool through the first flow channel. The fifth valve port is used to communicate with the outside of the water quality monitoring device so as to discharge the liquid in the detection pool. When the liquid circuit module is in the liquid discharge mode, the second valve port, the third valve port and the fourth valve port are all in a conductive state so that the first flow channel and the second flow channel constitute at least part of the liquid discharge flow channel.

4. The water quality monitoring device as described in claim 3, characterized in that, The drain channel also has a sixth valve port, and the second liquid path assembly also forms a third channel. One end of the third channel is connected to the sixth valve port, and the other end is used to receive the cleaning liquid. When the liquid circuit module is in the cleaning mode, the second valve port, the third valve port, the fourth valve port and the sixth valve port are all in the conducting state, so that the first flow channel, the second flow channel and the third flow channel constitute at least part of the cleaning flow channel.

5. The water quality monitoring device according to any one of claims 1-4, characterized in that, The liquid path module also includes a third liquid path component, which includes a balancing channel. One end of the balancing channel is connected to the detection pool, and the other end is connected to the outside of the water quality monitoring device to balance the air pressure in the detection pool.

6. The water quality monitoring device as described in claim 1, characterized in that, The detection component includes a spectral detection element, a first light source module, and a second light source module. The spectral detection element, the first light source module, and the second light source module are arranged corresponding to the detection cell. The first light source module and the spectral detection element are arranged on a first side and a second side opposite to the detection cell, respectively. The second light source module is arranged on a third side of the detection cell, and the third side is different from the first side and the second side. In the first detection mode, the first light source module is used to output excitation light to the detection cell, and the spectral detection device is used to receive the light signal generated by the excitation light on the liquid in the detection cell. In the second detection mode, the second light source module is used to output transmitted light to the detection cell, and the spectral detection device is used to receive the light signal generated by the liquid in the detection cell being excited by the transmitted light.

7. The water quality monitoring device as described in claim 6, characterized in that, The first light source module includes at least a first light source component and a second light source component. In the first detection mode, the detection component alternately enters a first working period and a second working period. During the first working period, the first light source component outputs excitation light to the detection cell, and during the second working period, the second light source component outputs excitation light to the detection cell. The first light source component includes at least two first LEDs, and the second light source component includes at least two second LEDs. In two adjacent first working periods, the excitation light output by the first light source component is formed by at least partially different first LEDs. In two adjacent second working periods, the excitation light output by the second light source component is formed by at least partially different second LEDs. In the first detection mode, the first light source component and the second light source component alternately output excitation light to the detection cell.

8. The water quality monitoring device as described in claim 6, characterized in that, The first light source module includes a light source element, a heat sink element, and a lens unit. The light source element is used to generate the excitation light. The lens unit is disposed between the light source element and the detection cell and is used to converge the excitation light generated by the light source element and transmit it to the detection cell. The heat sink element is connected to the side of the light source element away from the lens unit, and the surface of the side of the heat sink element away from the lens unit has a concave-convex structure.

9. The water quality monitoring device as described in claim 1, characterized in that, The water quality monitoring device also includes a control module, which is at least partially housed in the accommodating cavity and is used to control the detection module and the liquid circuit module to perform detection operations; Furthermore, the water quality monitoring device also includes a sealing component, which is disposed within the accommodating cavity and divides the accommodating cavity into a first cavity and a second cavity. The first cavity is used to accommodate the detection module and the liquid circuit module, and the second cavity is used to accommodate the control module.

10. The water quality monitoring device as described in claim 9, characterized in that, The control module includes a main control module, a light source driving module, a detection driving module, and a liquid path driving module. The main control module is electrically connected to and controls the light source driving module, the detection driving module, and the liquid path driving module to drive the detection module and the liquid path module to work. The light source driving module and the detection driving module are used to electrically connect to and drive the detection module to perform detection operations; The hydraulic drive module is used to electrically connect the hydraulic module to drive the hydraulic components and the power components to work.

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