Water Hazard Detector Based on Spectroscopy and Mass Spectrometry

Abstract

This utility model discloses a water quality hazardous substance detector based on spectral and mass spectrometry technologies, belonging to the field of environmental quality testing technology. It includes a base, with an ultrasonic transmitter housed inside. A detection box is fixedly connected to the top of the base corresponding to the ultrasonic transmitter. A spectral analyzer and a mass spectrometer are symmetrically fixedly connected to the outer wall of the detection box. This utility model, through the cooperation of a distribution box, guide pipes, and adjustable flow control valves, achieves the effect of avoiding uneven water sample distribution. The water to be tested is poured into a fixed frame and enters the distribution box. Then, a PLC controller controls the adjustable flow control valves in the two guide pipes respectively, allowing the adjustable flow control valves to precisely adjust the volume of water sample entering the two guide pipes, ensuring the consistency of the spectral and mass spectrometry detection samples, thereby avoiding uneven water sample distribution.

Description

Technical Field

[0001] This utility model relates to the field of environmental quality detection technology, specifically a water quality hazardous substance detector based on spectroscopy and mass spectrometry technology. Background Technology

[0002] A high-precision water quality detector using coupled spectroscopy and mass spectrometry is an instrument that can simultaneously utilize the principles of spectroscopy and mass spectrometry for water quality detection. This detector typically combines optical detection using spectroscopy with mass analysis techniques using mass spectrometry, enabling it to detect and identify trace amounts of organic and inorganic substances in water, including but not limited to heavy metals, organic pollutants, and drug residues.

[0003] For example, the patent with authorization announcement number CN222579938U describes a high-precision water quality detector based on spectral and mass spectrometry technology. The detector includes a detection component, which consists of a detector and a diversion component. By setting a diversion component within the detection component, the water source is diverted and flows back in, allowing the detector to perform simultaneous spectral and mass spectrometry detection on the same batch of water samples. However, during detection, the shared drainage chamber and collection chamber may lead to residual contamination in different batches of water samples, affecting subsequent water quality testing, especially with significant errors in the detection of trace heavy metals.

[0004] Based on this, a water quality hazardous substance detector based on spectral and mass spectrometry technology is now available, which can eliminate the drawbacks of existing devices. Utility Model Content

[0005] The purpose of this invention is to provide a water quality hazardous substance detector based on spectral and mass spectrometry technologies to solve the problems in the background technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A water quality hazardous substance detector based on spectral and mass spectrometry technology includes a base. An ultrasonic transmitter is housed inside the base. A detection chamber is fixedly connected to the top of the base corresponding to the ultrasonic transmitter. A spectral analyzer and a mass spectrometer are symmetrically fixedly connected to the outer wall of the detection chamber. A partition is fixedly connected inside the detection chamber. A flow divider is fixedly connected to the top of the partition. A guide pipe is symmetrically fixedly connected to the bottom of the flow divider. An adjustable flow control valve is installed inside the guide pipe. A drain pipe is symmetrically fixedly connected to the bottom of the detection chamber. A solenoid valve is installed inside the drain pipe. The drain pipe communicates with a manifold cavity opened inside the base. An outlet is fixedly connected to the outer wall of the base and communicates with the manifold cavity. A filter assembly is located at the top of the detection chamber. A cleaning mechanism is located inside the base. A water supply assembly is fixedly connected to the top of the base.

[0007] Based on the above technical solutions, this utility model also provides the following optional technical solutions: Preferably, the spectrometer and mass spectrometer are electrically connected to the solenoid valves installed in the two drain pipes via a PLC controller.

[0008] Preferably, the filter assembly includes a fixed frame, the bottom end of which is fixedly connected to the top end of the detection box, connecting rods are evenly installed inside the fixed frame, and a filter screen is fixedly connected to the bottom end of the connecting rod, with the filter screen inserted into the interior of the fixed frame.

[0009] Preferably, an elastic sheet is fixedly connected to the bottom end of the connecting rod, and a locking block is fixedly connected to the outer wall of the elastic sheet, the locking block engaging with a slot opened on the fixed frame.

[0010] Preferably, the cleaning mechanism includes a motor, which is fixedly connected to the outer wall of the base. A rotating rod is fixedly connected to the output end of the motor. The outer wall of the rotating rod is rotatably connected to the inner wall of the base. A worm gear is uniformly fixedly connected to the outer wall of the rotating rod, and a worm wheel meshes with the outer wall of the worm gear.

[0011] Preferably, a connecting pipe is fixedly connected to the shaft of the worm gear, a flow divider is fixedly connected to the bottom end of the connecting pipe, and nozzles are evenly distributed at the bottom end of the flow divider.

[0012] Preferably, the water supply assembly includes a cleaning fluid tank, the bottom of which is fixedly connected to the top of the base. A water pump is fixedly connected to the outer wall of the cleaning fluid tank. The input end of the water pump communicates with the inner cavity of the cleaning fluid tank. An outlet pipe is fixedly connected to the output end of the water pump. A rectangular tube is fixedly connected to the base through the outlet pipe. The rectangular tube is fixedly connected to a manifold cavity opened inside the base. The rectangular tube is rotatably connected to a connecting pipe. The outlet pipe, the rectangular tube, the connecting pipe, the diverter plate, and the nozzle are connected.

[0013] Preferably, the connection between the rectangular tube and the connecting tube is sealed by a mechanical sealing ring.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model achieves the effect of avoiding uneven water sample distribution by using a distribution box, a guide pipe, and an adjustable flow control valve. The water to be tested is poured into a fixed frame and then enters the distribution box. Then, the adjustable flow control valves in the two guide pipes are controlled by a PLC controller to precisely adjust the volume of water sample entering the two guide pipes, ensuring the consistency of the spectral and mass spectrometry detection samples, thereby avoiding uneven water sample distribution.

[0015] 2. This utility model achieves the effect of cleaning the test box and the manifold by using an ultrasonic transmitter, a cleaning mechanism and a water supply component. The ultrasonic transmitter cleans the test box containing cleaning solution or water to remove the sample remaining in the test box. At the same time, the cleaning mechanism and the water supply component clean the manifold to avoid cross-contamination. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0018] Figure 3 This is a schematic diagram of the internal structure of the testing box of this utility model.

[0019] Figure 4 This is a schematic diagram of the cleaning mechanism of this utility model.

[0020] Figure reference numerals: 1. Base; 11. Ultrasonic transmitter; 12. Detection box; 13. Spectrometer; 14. Mass spectrometer; 15. Partition; 16. Diverter box; 17. Guide pipe; 18. Drain pipe; 19. Outlet; 2. Filter assembly; 21. Fixing frame; 22. Connecting rod; 23. Filter screen; 24. Elastic sheet; 25. Locking block; 3. Cleaning mechanism; 31. Motor; 32. Rotating rod; 33. Worm gear; 34. Worm wheel; 35. Connecting pipe; 36. Diverter plate; 37. Nozzle; 4. Water supply assembly; 41. Cleaning solution tank; 42. Water pump; 43. Outlet pipe; 44. Rectangular tube. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0022] In one embodiment, such as Figures 1-4As shown, the water quality hazardous substance detector based on spectral and mass spectrometry technology includes a base 1. An ultrasonic transmitter 11 is installed inside the base 1. A detection chamber 12 is fixedly connected to the top of the base 1 corresponding to the position of the ultrasonic transmitter 11. A spectral analyzer 13 and a mass spectrometer 14 are symmetrically fixedly connected to the outer wall of the detection chamber 12. (The spectral analyzer 13 is a Nanjing Kejie iCAP-Q, and the mass spectrometer 14 is a PerkinElmer NexION.) The internal structure of the detection box 12 (350D) is fixedly connected to a partition 15. A diversion box 16 is fixedly connected to the top of the partition 15. A guide pipe 17 is symmetrically fixedly connected to the bottom of the diversion box 16. An adjustable flow control valve is installed in the inner cavity of the guide pipe 17. A drain pipe 18 is symmetrically fixedly connected to the bottom of the detection box 12. A solenoid valve is installed in the inner cavity of the drain pipe 18. The drain pipe 18 communicates with the manifold cavity opened inside the base 1. An outlet 19 is fixedly connected to the outer wall of the base 1. The outlet 19 communicates with the manifold cavity. A filter assembly 2 is installed at the top of the detection box 12. A cleaning mechanism 3 is installed in the inner cavity of the base 1. A water supply assembly 4 is fixedly connected to the top of the base 1.

[0023] In this embodiment, the water to be tested is filtered by the filter assembly 2 to remove larger substances. Then, the water is detected by a spectrometer 13 and a mass spectrometer 14. (The spectrometer 13 works on the principle that when light emitted from a light source passes through the water sample, dissolved substances in the water (such as organic pollutants and inorganic ions) absorb light of specific wavelengths. The remaining light intensity is received by the detector and converted into an electrical signal. By analyzing the absorption rate at different wavelengths and combining it with a calibration model, parameters such as chemical oxygen demand (COD), ammonia nitrogen, and total phosphorus of the water sample can be calculated.) 14. Detection Principle: A water sample is introduced into the mass spectrometer's injection system. Pollutants in the water sample (such as organic pollutants, heavy metals, etc.) are converted into charged ions through ionization technology. The charged ions are separated according to their mass-to-charge ratio (m / z) under the action of electric and magnetic fields, forming a mass spectrum. By analyzing the ion peaks in the mass spectrum, the type and concentration of pollutants can be determined. When it is necessary to clean the inner cavity and manifold of the detection chamber 12, the inner cavity of the detection chamber 12 is cleaned using an ultrasonic transmitter 11 in conjunction with a cleaning solution. The manifold is cleaned by the cleaning mechanism 3 and the water supply component 4 to avoid cross-contamination.

[0024] In an optional embodiment, such as Figure 2 As shown, the spectrometer 13 and mass spectrometer 14 are electrically connected to the solenoid valves installed in the two drain pipes 18 through a PLC controller. When the spectrometer 13 completes the detection first, it feeds back the information that the detection has been completed to the PLC controller. The PLC controller then opens the solenoid valve located in the right drain pipe 18, allowing the water on the right side to be discharged from the drain pipe 18, enter the manifold, and then be discharged from the outlet 19.

[0025] In an optional embodiment, such as Figure 3 As shown, the filter assembly 2 includes a fixed frame 21. The bottom end of the fixed frame 21 is fixedly connected to the top end of the detection box 12. Connecting rods 22 are evenly installed inside the fixed frame 21. A filter screen 23 is fixedly connected to the bottom end of the connecting rods 22. The filter screen 23 is inserted into the inside of the fixed frame 21. When testing the water quality, the water to be tested is poured into the fixed frame 21 and filtered by the filter screen 23 to filter out larger substances and prevent particulate matter from clogging the interface of the mass spectrometer 14.

[0026] In an optional embodiment, such as Figure 3 As shown, an elastic sheet 24 is fixedly connected to the bottom end of the connecting rod 22, and a locking block 25 is fixedly connected to the outer wall of the elastic sheet 24. The locking block 25 engages with the slot opened on the fixed frame 21. When the filter screen 23 needs to be removed for replacement or maintenance, the elastic sheet 24 is pushed inward to disengage the locking block 25 from the slot, and the connecting rod 22 can be pulled upward to remove the filter screen 23 for replacement or maintenance.

[0027] In an optional embodiment, such as Figure 4 As shown, the cleaning mechanism 3 includes a motor 31, which is fixedly connected to the outer wall of the base 1. A rotating rod 32 is fixedly connected to the output end of the motor 31. The outer wall of the rotating rod 32 is rotatably connected to the inner wall of the base 1. A worm gear 33 is uniformly fixedly connected to the outer wall of the rotating rod 32. A worm wheel 34 meshes with the outer wall of the worm gear 33. A connecting pipe 35 is fixedly connected to the axis of the worm wheel 34. A flow divider 36 is fixedly connected to the bottom end of the connecting pipe 35. Spray nozzles 37 are uniformly distributed at the bottom end of the flow divider 36. The rotating rod 32 is driven by the motor 31, which drives the worm gear 33 to rotate. The worm gear 33 drives the worm wheel 34 to rotate. The worm wheel 34 drives the connecting pipe 35 and the flow divider 36 to rotate. The flow divider 36 drives the spray nozzles 37 to rotate.

[0028] In an optional embodiment, such as Figure 4 As shown, the water supply assembly 4 includes a cleaning fluid tank 41. The bottom end of the cleaning fluid tank 41 is fixedly connected to the top end of the base 1. A water pump 42 is fixedly connected to the outer wall of the cleaning fluid tank 41. The input end of the water pump 42 is connected to the inner cavity of the cleaning fluid tank 41. The output end of the water pump 42 is fixedly connected to an outlet pipe 43. The outlet pipe 43 passes through the base 1 and is fixedly connected to a rectangular tube 44. The rectangular tube 44 is fixedly connected to a manifold cavity opened inside the base 1. The rectangular tube 44 is rotatably connected to a connecting pipe 35. The outlet pipe 43, the rectangular tube 44, the connecting pipe 35, the diverter plate 36, and the nozzle 37 are connected. The water pump 42 draws out the cleaning fluid from the cleaning fluid tank 41 and delivers it to the rectangular tube 44 through the outlet pipe 43. Then, it delivers it to the connecting pipe 35 through the rectangular tube 44. The nozzle 37 then sprays the cleaning fluid into the manifold cavity to clean it.

[0029] In an optional embodiment, such as Figure 4 As shown, the connection between the rectangular tube 44 and the connecting tube 35 is sealed by a mechanical seal ring. The mechanical seal ring seals the connection to prevent water leakage when the connecting tube 35 rotates.

[0030] The above embodiments disclose a water quality hazardous substance detector based on spectral and mass spectrometry technologies. During water quality testing, the water to be tested is poured into a fixed frame 21 and filtered by a filter screen 23 to remove larger substances, preventing particulate matter from clogging the interface of the mass spectrometer 14. The filtered water enters a distribution box 16. Subsequently, a PLC controller controls adjustable flow control valves in two guide pipes 17 to adjust the water flow into the left and right cavities of the detection box 12, ensuring uniform water distribution. This avoids affecting the comparability of spectral and mass spectrometry detection data due to uneven water sample distribution (especially for water containing suspended solids). During the detection process, when the spectral analyzer 13 has completed its detection while the mass spectrometer 14 is still detecting, the spectral analyzer 13 feeds back the completed detection information to the PLC controller. The PLC controller then opens the solenoid valve in the right-side drain pipe 18, discharging the water from the right side into the manifold, and then... The liquid is discharged through outlet 19. After the mass spectrometer 14 completes the detection, the water on the left side is discharged. Depending on the substance to be detected next, it is optional to clean the inner cavity of the detection chamber 12 and the manifold. When cleaning is required, cleaning solution or clean water is added to the detection chamber 12, and then the ultrasonic transmitter 11 is activated in conjunction with the cleaning solution to clean the inner cavity of the detection chamber 12, avoiding the risk of sample residue. The waste liquid after cleaning is discharged into the manifold through drain pipe 18, and then discharged through motor 3. 1. Drive the rotating rod 32, which drives the worm gear 33 to rotate. The worm gear 33 drives the worm wheel 34 to rotate. The worm wheel 34 drives the connecting pipe 35 and the diverter plate 36 to rotate. The diverter plate 36 drives the nozzle 37 to rotate. At the same time, the water pump 42 draws out the cleaning fluid from the cleaning fluid tank 41 and delivers it to the rectangular pipe 44 through the outlet pipe 43. Then, it delivers it to the connecting pipe 35 through the rectangular pipe 44. The nozzle 37 then sprays the cleaning fluid into the manifold to clean the manifold and avoid cross-contamination.

[0031] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included 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 hazardous substance detector based on spectral and mass spectrometry technology, comprising a base (1), wherein an ultrasonic transmitter (11) is disposed inside the base (1), characterized in that, A detection box (12) is fixedly connected to the top of the base (1) at the position corresponding to the ultrasonic transmitter (11). A spectrometer (13) and a mass spectrometer (14) are symmetrically fixedly connected to the outer wall of the detection box (12). A partition (15) is fixedly connected inside the detection box (12). A flow divider (16) is fixedly connected to the top of the partition (15). A flow guide (17) is symmetrically fixedly connected to the bottom of the flow divider (16). An adjustable flow control valve is provided in the inner cavity of the flow guide (17). The bottom of the test box (12) is symmetrically and fixedly connected with a drain pipe (18). The inner cavity of the drain pipe (18) is equipped with a solenoid valve. The drain pipe (18) is connected to the manifold cavity opened inside the base (1). The outer wall of the base (1) is fixedly connected with a liquid outlet (19). The liquid outlet (19) is connected to the manifold cavity. The top of the test box (12) is equipped with a filter assembly (2). The inner cavity of the base (1) is equipped with a cleaning mechanism (3). The top of the base (1) is fixedly connected with a water supply assembly (4).

2. The water quality hazardous substance detector based on spectral and mass spectrometry technology according to claim 1, characterized in that, The spectrometer (13) and mass spectrometer (14) are electrically connected to the solenoid valves installed in the two drain pipes (18) via a PLC controller.

3. The water quality hazardous substance detector based on spectral and mass spectrometry technology according to claim 1, characterized in that, The filter assembly (2) includes a fixed frame (21), the bottom end of which is fixedly connected to the top end of the detection box (12). Connecting rods (22) are evenly installed inside the fixed frame (21), and a filter screen (23) is fixedly connected to the bottom end of the connecting rod (22). The filter screen (23) is inserted into the interior of the fixed frame (21).

4. The water quality hazardous substance detector based on spectral and mass spectrometry technology according to claim 3, characterized in that, The bottom end of the connecting rod (22) is fixedly connected to an elastic sheet (24), and the outer wall of the elastic sheet (24) is fixedly connected to a locking block (25), which engages with a slot on the fixed frame (21).

5. The water quality hazardous substance detector based on spectral and mass spectrometry technology according to claim 1, characterized in that, The cleaning mechanism (3) includes a motor (31), which is fixedly connected to the outer wall of the base (1). A rotating rod (32) is fixedly connected to the output end of the motor (31). The outer wall of the rotating rod (32) is rotatably connected to the inner wall of the base (1). A worm gear (33) is evenly fixedly connected to the outer wall of the rotating rod (32). A worm wheel (34) meshes with the outer wall of the worm gear (33).

6. The water quality hazardous substance detector based on spectral and mass spectrometry technology according to claim 5, characterized in that, A connecting pipe (35) is fixedly connected to the shaft of the worm gear (34), and a flow divider (36) is fixedly connected to the bottom end of the connecting pipe (35). Nozzles (37) are evenly distributed at the bottom end of the flow divider (36).

7. The water quality hazardous substance detector based on spectral and mass spectrometry technology according to claim 1, characterized in that, The water supply assembly (4) includes a cleaning fluid tank (41), the bottom of which is fixedly connected to the top of the base (1). A water pump (42) is fixedly connected to the outer wall of the cleaning fluid tank (41). The input end of the water pump (42) is connected to the inner cavity of the cleaning fluid tank (41). The output end of the water pump (42) is fixedly connected to an outlet pipe (43). The outlet pipe (43) passes through the base (1) and is fixedly connected to a rectangular tube (44). The rectangular tube (44) is fixedly connected to a manifold cavity opened inside the base (1). The rectangular tube (44) is rotatably connected to a connecting pipe (35). The outlet pipe (43), the rectangular tube (44), the connecting pipe (35), the diverter plate (36), and the nozzle (37) are connected to each other.

8. The water quality hazardous substance detector based on spectral and mass spectrometry technology according to claim 7, characterized in that, The connection between the rectangular tube (44) and the connecting tube (35) is sealed by a mechanical seal ring.

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