Water quality detection and sample pretreatment integrated device based on microfluidic technology

Abstract

The utility model relates to the technical field of water quality detection, in particular to a water quality detection and sample pretreatment integrated device based on a microfluidic technology. The utility model provides the water quality detection and sample pretreatment integrated device based on the microfluidic technology, which can be used for comprehensively pretreating a water sample, improving the water quality detection efficiency and saving the cost. A water quality detection and sample pretreatment integrated device based on a microfluidic technology comprises a base, a sleeve, a pretreatment assembly and the like, the upper side of the base is in threaded connection with the sleeve, and the pretreatment assembly capable of filtering a water sample is arranged on the sleeve. According to the utility model, a water sample is filtered through the filter screen, a digestion reagent is added into the water sample, so that the digestion reagent and the water sample flow into the spiral pipe to be fully mixed, and then eluent enters the enrichment pipe from the water inlet pipe to elute enriched substances, so that the water sample can be comprehensively pretreated, the water quality detection efficiency is improved, and the water quality detection efficiency is improved. And the cost is saved.

Description

Technical Field

[0001] This utility model relates to the field of water quality testing technology, and in particular to an integrated device for pre-processing water quality test samples based on microfluidic technology. Background Technology

[0002] Water quality testing refers to the assessment of water quality through a series of physical, chemical, and biological methods to ensure that it meets specific standards or specifications. Water quality testing requires pretreatment of water samples, such as filtration, digestion, and enrichment. However, existing water quality testing sample pretreatment devices typically focus on only one specific function or step, failing to complete comprehensive water sample pretreatment tasks. This necessitates the use of different equipment, which is time-consuming, labor-intensive, and affects water quality testing efficiency, while also incurring high costs.

[0003] Therefore, a microfluidic integrated water quality testing sample pretreatment device has now been developed that can comprehensively pretreat water samples, improve water quality testing efficiency, and save costs. Utility Model Content

[0004] To overcome the shortcomings of existing water quality testing sample pretreatment devices, which typically focus on only a specific function or step and cannot complete comprehensive water sample pretreatment tasks, this utility model provides an integrated water quality testing sample pretreatment device based on microfluidic technology that can comprehensively pretreat water samples, improve water quality testing efficiency, and save costs.

[0005] The technical solution of this utility model is: an integrated water quality testing sample pretreatment device based on microfluidic technology, including a base, a sleeve, a pretreatment component and an opening and closing component. The sleeve is threadedly connected to the upper side of the base, and the pretreatment component capable of filtering water samples is provided on the sleeve. The opening and closing component capable of controlling the flow of water samples is provided on the base.

[0006] Furthermore, the pretreatment components include a filter tube, a spiral tube, a mounting sleeve, a filter element, a enrichment tube, an outlet pipe, a collection box, and an inlet pipe. The filter tube is threadedly connected to the upper side of the sleeve, and the spiral tube is connected inside the sleeve, communicating with the filter tube. The mounting sleeve is connected to the upper part of the base, communicating with the spiral tube, and the filter element is connected inside the mounting sleeve. The enrichment tube is connected inside the base, located below the mounting sleeve, and the outlet pipe is connected to the lower side of the enrichment tube, communicating with the base. The collection box is connected to the lower left inner side of the base, communicating with the outlet pipe, and the inlet pipe is connected to the upper right part of the base, communicating with the enrichment tube.

[0007] Furthermore, a filter screen is installed inside the filter tube.

[0008] Furthermore, nanomaterials are incorporated into the enrichment tube.

[0009] Furthermore, it also includes a control valve, which is located at the bottom of the collection box.

[0010] Furthermore, the opening and closing assembly includes a motor, bevel gears, a first rotating frame, and a second rotating frame. The motor is connected to the inner side of the lower right part of the base. The first rotating frame is rotatably connected to the water inlet pipe, and the second rotating frame is rotatably connected to the water outlet pipe. The motor output shaft is connected to the second rotating frame. Both the first and second rotating frames are connected to bevel gears, which mesh with each other.

[0011] The beneficial effects are: This utility model filters the water sample through a filter screen, adds the digestion agent to the water sample, and allows the digestion agent and water sample to flow into the spiral tube for thorough mixing. Then, the eluent enters the enrichment tube from the inlet pipe to elute the enriched substances, thus achieving the effect of comprehensive pretreatment of water samples, improving water quality testing efficiency, and saving costs. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0013] Figure 2 This is a three-dimensional structural diagram of the base and sleeve of this utility model.

[0014] Figure 3 This is a three-dimensional structural diagram of the spiral filter pipe of this utility model.

[0015] Figure 4 This is a three-dimensional structural diagram of the filter element and water outlet pipe of this utility model.

[0016] Figure 5 This is a three-dimensional structural diagram of the motor and rotating frame of this utility model.

[0017] In the attached drawings, the following are the reference numerals: 1-base, 2-sleeve, 3-filter tube, 4-spiral tube, 5-mounting sleeve, 6-filter element, 7-enrichment tube, 8-outlet pipe, 9-collection box, 10-control valve, 11-inlet pipe, 12-motor, 13-bevel gear, 14-first rotating frame, 15-second rotating frame. Detailed Implementation

[0018] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0019] An integrated water quality testing sample pretreatment device based on microfluidic technology, such as Figures 1-5 As shown, it includes a base 1, a sleeve 2, a pretreatment component, and an opening and closing component. The sleeve 2 is threadedly connected to the upper side of the base 1. The sleeve 2 is provided with the pretreatment component, and the opening and closing component is provided on the base 1.

[0020] like Figures 1-5As shown, the pretreatment assembly includes a filter tube 3, a spiral tube 4, a mounting sleeve 5, a filter element 6, a enrichment tube 7, a water outlet pipe 8, a collection box 9, a control valve 10, and a water inlet pipe 11. The filter tube 3 is threadedly connected to the upper side of the sleeve 2. The filter tube 3 has a filter screen inside for filtration. The spiral tube 4 is connected inside the sleeve 2 and communicates with the filter tube 3. The mounting sleeve 5 is connected to the upper part of the base 1 and communicates with the spiral tube 4. The filter element 6 is connected inside the mounting sleeve 5. The base 1 is internally connected to the enrichment tube 7, which contains nanomaterials to facilitate the enrichment of water samples. The enrichment tube 7 is located under the mounting sleeve 5. The lower side of the enrichment tube 7 is connected to the outlet pipe 8, which is connected to the base 1. The lower left inner side of the base 1 is connected to the collection box 9, which is connected to the outlet pipe 8. The lower part of the collection box 9 is equipped with the control valve 10. The upper right part of the base 1 is connected to the inlet pipe 11, which is connected to the enrichment tube 7.

[0021] like Figure 1 and Figure 5 As shown, the opening and closing assembly includes a motor 12, a bevel gear 13, a first rotating frame 14, and a second rotating frame 15. The motor 12 is connected to the inner side of the lower right part of the base 1. The first rotating frame 14 is rotatably connected to the water inlet pipe 11, and the second rotating frame 15 is rotatably connected to the water outlet pipe 8. The output shaft of the motor 12 is connected to the second rotating frame 15. The bevel gear 13 is connected to both the first rotating frame 14 and the second rotating frame 15, and the bevel gears 13 mesh with each other.

[0022] When using this invention, first place the base 1 in the water quality testing area, connect the filter tube 3 to the external pump body, and then control the pump body through the microcontroller to pass the water sample into the filter tube 3. The filter screen filters the water sample, and then the digestion agent is added to the water sample, so that the digestion agent and water sample flow into the spiral tube 4 for thorough mixing and rapid digestion of the water sample. After digestion, the water sample flows into the mounting sleeve 5, where the filter element 6 adsorbs and filters the particulate matter in the water sample. Subsequently, the water sample enters the enrichment tube 7, where the target analyte is adsorbed on the surface of the nanomaterial and enriched. Finally, the water sample is discharged from the outlet tube 8, and then the eluent is passed into the... Inside the inlet pipe 11, the motor 12 is started, causing the bevel gear 13 to mesh and rotate, driving the first rotating frame 14 to rotate and open the inlet pipe 11. The second rotating frame 15 rotates and closes the outlet pipe 8. Then, the eluent enters the enrichment tube 7 from the inlet pipe 11, eluting the enriched substances. The eluted solution then enters the collection box 9. The control valve 10 is then opened to discharge the solution for testing. After the water sample is processed, the base 1, the sleeve 2, and the filter tube 3 can be disassembled for cleaning, thus enabling comprehensive pretreatment of the water sample, improving water quality testing efficiency, and saving costs.

[0023] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model 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 utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An integrated device for pretreatment of water quality test samples based on microfluidic technology, characterized in that: It includes a base (1), a sleeve (2), a pretreatment component and an opening and closing component. The upper side of the base (1) is threadedly connected to the sleeve (2). The sleeve (2) is provided with a pretreatment component that can filter water samples. The base (1) is provided with an opening and closing component that can control the flow of water samples.

2. The water quality detection sample pretreatment integrated device based on microfluidic technology according to claim 1, characterized in that: The pretreatment assembly includes a filter tube (3), a spiral tube (4), a mounting sleeve (5), a filter element (6), a enrichment tube (7), an outlet pipe (8), a collection box (9), and an inlet pipe (11). The upper side of the sleeve (2) is threadedly connected to the filter tube (3), and the inside of the sleeve (2) is connected to the spiral tube (4), which communicates with the filter tube (3). The upper part of the base (1) is connected to the mounting sleeve (5), which communicates with the spiral tube (4). (5) A filter element (6) is connected inside. A collection tube (7) is connected inside the base (1). The collection tube (7) is located on the lower side of the mounting sleeve (5). A water outlet pipe (8) is connected to the lower side of the collection tube (7). The water outlet pipe (8) is connected to the base (1). A collection box (9) is connected to the lower left inner side of the base (1). The collection box (9) is connected to the water outlet pipe (8). A water inlet pipe (11) is connected to the upper right part of the base (1). The water inlet pipe (11) is connected to the collection tube (7).

3. The water quality detection sample pretreatment integrated device based on microfluidic technology according to claim 2, characterized in that: The filter tube (3) has a filter screen inside.

4. The water quality detection sample pretreatment integrated device based on microfluidic technology according to claim 2, characterized in that: The enrichment tube (7) contains nanomaterials.

5. The water quality detection sample pretreatment integrated device based on microfluidic technology according to claim 2, characterized in that: It also includes a control valve (10), and the lower part of the collection box (9) is provided with a control valve (10).

6. The water quality detection sample pretreatment integrated device based on microfluidic technology according to claim 1, characterized in that: The opening and closing assembly includes a motor (12), a bevel gear (13), a first rotating frame (14), and a second rotating frame (15). The motor (12) is connected to the inner side of the lower right part of the base (1). The first rotating frame (14) is rotatably connected to the water inlet pipe (11), and the second rotating frame (15) is rotatably connected to the water outlet pipe (8). The output shaft of the motor (12) is connected to the second rotating frame (15). Both the first rotating frame (14) and the second rotating frame (15) are connected to bevel gears (13), and the bevel gears (13) mesh with each other.

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