Atmospheric dry-wet sedimentation sampling device

Abstract

The utility model belongs to the technical field of environment monitoring equipment, and provides an atmosphere dry and wet sedimentation sampling device which comprises a box main body, a dry sedimentation dust collection cylinder, a wet sedimentation dust collection cylinder, two dry sedimentation sealing covers symmetrically covering the dry sedimentation dust collection cylinder, and two wet sedimentation sealing covers symmetrically covering the wet sedimentation dust collection cylinder, the dry sedimentation sealing cover is movably hinged to the dry sedimentation dust collection cylinder, and the wet sedimentation sealing cover is movably hinged to the wet sedimentation dust collection cylinder. According to the atmospheric dry and wet sedimentation sampling device, the stability and the reliability of the sealing cover in the using process are improved by improving the sealing cover structure, the normal and stable sampling process is ensured, and meanwhile, the dry sedimentation dust collecting barrel and the wet sedimentation dust collecting barrel are respectively provided with an independent sealing cover structure; the phenomenon of cross contamination between the dry sedimentation collected sample and the wet sedimentation collected sample is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of environmental monitoring equipment technology, and specifically relates to an atmospheric dry and wet deposition sampling device. Background Technology

[0002] Air pollution monitoring determines the type and concentration of pollutants in the atmosphere and assesses ambient air quality by observing their spatiotemporal distribution and variation patterns. Currently, atmospheric dry and wet deposition sampling instruments are commonly used to collect and sample dustfall in the ambient air to determine the degree and state of air pollution. However, existing atmospheric dry and wet deposition sampling instruments generally use a rotating drive plate to switch between sealing the dry and wet deposition dust collection cylinders for separate sampling. Examples include CN215067380U, an atmospheric dry and wet deposition sampling instrument, and CN117288533A, a dry and wet deposition sampler with built-in concentration. Both instruments use a rotating drive to connect the sealing cap for rotation. However, because the sealing cap has a large overall area and the connection to the rotating drive is close to the outer edge of the cap, this leads to… The overall stability of the cover is poor, especially in harsh environments such as strong winds, where the cover may fail to completely and effectively seal the dust collection cylinder, affecting the normal progress of the sampling process. In addition, since only one independent cover plate is used for switching between dry and wet sedimentation sampling, some samples may adhere to the inner bottom wall of the cover plate, causing cross-contamination between dry and wet sedimentation samples, resulting in distorted sample collection and affecting the accuracy of subsequent test results.

[0003] Therefore, it is necessary to design an atmospheric dry and wet deposition sampling device that can at least solve some of the above problems and defects. Summary of the Invention

[0004] To address the above technical problems, this invention proposes an atmospheric dry and wet deposition sampling device. By improving the sealing structure, the stability and reliability of the sealing during use are enhanced, ensuring the normal and stable operation of the sampling process. At the same time, by setting independent sealing structures for the dry deposition dust collection cylinder and the wet deposition dust collection cylinder, cross-contamination and sample distortion between dry and wet deposition samples are avoided.

[0005] The technical solution of this utility model is:

[0006] This utility model proposes an atmospheric dry and wet deposition sampling device, including a box body and a dry deposition dust collection cylinder and a wet deposition dust collection cylinder spaced apart on the top of the box body, and also includes two dry deposition caps symmetrically covering the dry deposition dust collection cylinder and two wet deposition caps symmetrically covering the wet deposition dust collection cylinder.

[0007] The dry settling cover is hinged to the dry settling dust collection cylinder, and the wet settling cover is hinged to the wet settling dust collection cylinder. When the dry settling dust collection cylinder is in the open state, the wet settling dust collection cylinder is in the closed state, and when the dry settling dust collection cylinder is in the closed state, the wet settling dust collection cylinder is in the open state.

[0008] Preferably, the dry settling cover is provided with a proximal connecting rod and a distal connecting rod symmetrically arranged on both sides of it. The proximal connecting rod and the distal connecting rod are respectively arranged close to both ends of the dry settling cover, and the two ends of the proximal connecting rod and the distal connecting rod are respectively movably hinged to the dry settling cover and the outer wall of the dry settling dust collection cylinder.

[0009] The wet settling cover is also provided with a near-end connecting rod and a far-end connecting rod symmetrically arranged on both sides. The near-end connecting rod and the far-end connecting rod are respectively arranged close to both ends of the wet settling cover, and the two ends of the near-end connecting rod and the far-end connecting rod are respectively movably hinged to the outer wall of the wet settling cover and the wet settling dust collection cylinder.

[0010] Preferably, the atmospheric dry and wet deposition sampling device provided by this utility model further includes a capping drive unit located between the dry deposition dust collection cylinder and the wet deposition dust collection cylinder, wherein the capping drive unit is connected to the proximal connecting rod of the dry deposition cap and the wet deposition cap.

[0011] Preferably, the capping drive unit includes a drive motor fixedly disposed inside the box body, and a drive shaft connected to the output shaft of the drive motor;

[0012] A driven shaft is provided at the hinge position of the near end of the connecting rod and is perpendicularly connected thereto. The end ends of the driving shaft and the driven shaft are respectively provided with meshing bevel gears.

[0013] Preferably, the atmospheric dry and wet deposition sampling device provided by this utility model further includes a solution replenishment mechanism set on the top of the main body of the box. The solution replenishment mechanism includes a rotatable liquid injection arm set on the main body of the box, a liquid injection pipeline fixedly set on the liquid injection arm, and a liquid injection pump and a liquid storage container located inside the main body of the box.

[0014] The injection pipeline is connected to the liquid storage container via the injection pump.

[0015] Preferably, the atmospheric dry and wet deposition sampling device provided by this utility model also includes a rainfall sensor, a wind speed measuring device, and a monitoring camera fixedly installed on the top of the main body of the box.

[0016] This utility model has the following advantages and effects compared with the prior art:

[0017] (1) Two dry settling caps that are symmetrically and movable on the dry settling dust collection cylinder and two wet settling caps that are symmetrically and movable on the wet settling dust collection cylinder are adopted, which improves the overall stability and reliability of the caps, enhances the adaptability to collection in harsh environments, ensures the tight sealing of the dust collection cylinder, and avoids the phenomenon of contamination and distortion of the collected samples.

[0018] (2) Independent dry settling caps and wet settling caps are used for dry settling dust collection cylinders and wet settling dust collection cylinders respectively. Compared with the existing single cap structure, the stability and reliability are improved, while effectively avoiding cross-contamination caused by samples adhering to the inner wall of the cap, thus improving the accuracy of the sampling process and subsequent test results.

[0019] (3) A solution replenishment mechanism is installed on the top of the main body of the box to replenish the ethylene glycol solution in the dry settling dust collection cylinder, thereby avoiding the phenomenon of inaccurate sampling results caused by insufficient ethylene glycol solution in the dry settling dust collection cylinder, and ensuring the accuracy and reliability of the sampling results. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the atmospheric dry and wet deposition sampling device in an embodiment of this utility model;

[0021] Figure 2 This is a front view of the atmospheric dry and wet deposition sampling device in an embodiment of this utility model;

[0022] Figure 3 This is a right view of the atmospheric dry and wet deposition sampling device in an embodiment of this utility model;

[0023] Figure 4 This is a partial perspective structural diagram of the atmospheric dry and wet deposition sampling device in an embodiment of this utility model;

[0024] Figure 5 for Figure 4 A magnified structural diagram of position A in the middle.

[0025] Reference numerals: 1. Main body of the container; 11. Rain sensor; 12. Wind speed meter; 13. Monitoring camera; 2. Dry settling dust collection cylinder; 3. Wet settling dust collection cylinder; 4. Dry settling cover; 5. Wet settling cover; 6. Proximal connecting rod; 61. Driven shaft; 7. Distal connecting rod; 8. Cover drive unit; 81. Drive shaft; 9. Solution replenishment mechanism; 91. Injection arm; 92. Injection pipeline. Detailed Implementation

[0026] To enable those skilled in the art to better understand this utility model, it will now be further described in conjunction with specific embodiments. It should be understood that the specific embodiments described herein are for illustrative and explanatory purposes only and are not intended to limit the scope of this utility model.

[0027] Example:

[0028] like Figures 1-5 As shown, this utility model provides an atmospheric dry and wet deposition sampling device, including a box body 1, a dry deposition dust collection cylinder 2 and a wet deposition dust collection cylinder 3 spaced apart on the top of the box body 1, two dry deposition covers 4 symmetrically covering the dry deposition dust collection cylinder 2, and two wet deposition covers 5 symmetrically covering the wet deposition dust collection cylinder 3, to cover and seal the openings of the dry deposition dust collection cylinder 2 and the wet deposition dust collection cylinder 3, thereby realizing the collection of dry deposition dust samples or wet deposition samples. It should be noted that the box body 1 specifically includes an outer shell and functional components disposed inside the outer shell. The functional components include, but are not limited to, temperature control mechanisms, control mechanisms, power supply mechanisms, and other components of existing dry and wet deposition instruments that realize the sampling function of atmospheric dust. Given that these are mature prior art in this field and are not the improvement points of this application, they will not be described in detail here.

[0029] The dry settling dust collection cylinder 2 is provided with an inner cavity with an opening at the top for collecting dry settling dust samples, and the wet settling dust collection cylinder 3 is provided with an inner cavity with an opening at the top for collecting wet settling dust samples. The dry settling dust collection cylinder 2 and the wet settling dust collection cylinder 3 can be sampled by means of an internal dust collection cylinder, or by means of means of sampling through a pipe connected to a sampling container built inside the main body 1. The specific sampling structure and sampling method can be set according to actual needs, and no specific restrictions are made here.

[0030] Combination Figure 1 , Figure 2 and Figure 3 As shown, the dry settling cover 4 is hinged to the dry settling dust collection cylinder 2, and the wet settling cover 5 is hinged to the wet settling dust collection cylinder 3. When the dry settling dust collection cylinder 2 is in the open state (dry settling sampling), the wet settling dust collection cylinder 3 is in the closed state, and when the dry settling dust collection cylinder 2 is in the closed state (wet settling sampling), the wet settling dust collection cylinder 3 is in the open state.

[0031] Optionally, in some embodiments, the mating ends of the two symmetrically arranged dry settling covers 4 are provided with sealing grooves, and the mating ends of the two symmetrically arranged wet settling covers 5 are also provided with sealing grooves to ensure the sealing performance of the mating of the two dry settling covers 4 and the wet settling covers 5. The bottom of the dry settling cover 4 is provided with a receiving groove adapted to the dry settling dust collection cylinder 2, and the bottom of the wet settling cover 5 is provided with a receiving groove adapted to the wet settling dust collection cylinder 3 to ensure the tightness of the covering of the dry settling dust collection cylinder 2 and the wet settling dust collection cylinder 3.

[0032] For details, please refer to Figure 3 As shown, the dry settling cover 4 is equipped with symmetrically arranged proximal connecting rods 6 and distal connecting rods 7 on both sides. The proximal connecting rods 6 and 7 are positioned close to both ends of the dry settling cover 4, and their ends are hinged to the outer walls of the dry settling cover 4 and the dry settling dust collection cylinder 2, respectively. Similarly, refer to... Figure 1 As shown, the wet settling cover 5 is also equipped with a proximal connecting rod 6 and a distal connecting rod 7 symmetrically arranged on both sides. The proximal connecting rod 6 and the distal connecting rod 7 are respectively arranged close to both ends of the wet settling cover 5, and their ends are respectively hinged to the outer wall of the wet settling cover 5 and the wet settling dust collection cylinder 3. Furthermore, both the dry settling dust collection cylinder 2 and the wet settling dust collection cylinder 3 are equipped with a proximal hinge shaft connected to the proximal connecting rod 6 and a distal hinge shaft connected to the distal connecting rod 7. The proximal hinge shaft and the distal hinge shaft are both fixedly installed on the outer wall of the dry settling dust collection cylinder 2 and the wet settling dust collection cylinder 3. The length of the proximal connecting rod 6 is less than the length of the distal connecting rod 7, and the proximal hinge shaft is located above the distal hinge shaft.

[0033] Furthermore, in combination Figure 4 and Figure 5 As shown, the atmospheric dry and wet deposition sampling device in this embodiment also includes a cover driving unit 8 located between the dry deposition dust collection cylinder 2 and the wet deposition dust collection cylinder 3. The cover driving unit 8 is connected to the proximal connecting rod 6 of the two dry deposition covers 4 and the two wet deposition covers 5, so as to drive the proximal connecting rod 6 to rotate around the proximal hinge axis, thereby driving the two symmetrically arranged dry deposition covers 4 or the two wet deposition covers 5 to move towards each other to reach a closed state or move away from each other to reach an open state.

[0034] Specifically, the cover drive unit 8 includes a drive motor (not shown in the figure) fixedly installed inside the box body 1, and a drive shaft 81 connected to the output shaft of the drive motor, see reference. Figure 5 As shown, a driven shaft 61 is provided at the hinge position of the proximal connecting rod 6 and the proximal hinge shaft, which is perpendicularly connected to it and extends outward. The end ends of the drive shaft 81 and the driven shaft 61 are respectively provided with matching bevel gears to realize the meshing connection and transmission between the drive shaft 81 and the driven shaft 61.

[0035] Furthermore, the driven shafts 61 of the proximal connecting rods 6 of the dry settlement cover 4 and the wet settlement cover 5 located on the same side are aligned on the same straight line. This allows for the synchronous driving of the dry settlement cover 4 and the wet settlement cover 5 by a drive motor and a drive shaft 81, ensuring that the wet settlement cover 5 is closed when the dry settlement cover 4 is open, and the wet settlement cover 5 is open when the dry settlement cover 4 is closed. The drive motor is connected to a control mechanism located inside the main body 1 to receive control signals from the control mechanism and complete forward and reverse rotation operations. The transmission shaft penetrates vertically through the top wall of the main body 1 and extends upward. Specifically, in this embodiment, two drive motors and two transmission shafts are provided to drive the symmetrically arranged dry settlement cover 4 and two wet settlement cover 5 to move respectively.

[0036] Furthermore, in combination Figure 1 , Figure 4 and Figure 5 As shown, the cover-driving unit 8 also includes a gearbox fixedly mounted on the main body 1. Both the drive shaft 81 and the driven shaft 61 movably penetrate the gearbox wall and extend into the gearbox. Furthermore, the bevel gears at the ends of both the drive shaft 81 and the driven shaft 61 are located inside the gearbox. It should be noted that... Figure 4 and Figure 5 A perspective view of the gearbox is provided to clearly show the connection structure between the drive shaft 81 and the transmission shaft.

[0037] like Figure 1 As shown, the main body 1 of the container is also equipped with a rainfall sensor 11, an anemometer 12, and a monitoring camera 13. The rainfall sensor 11 is fixedly mounted on the main body 1 and connected to the control mechanism inside the main body 1. When the rainfall sensor 11 detects rainfall, it transmits the rainfall signal to the control mechanism, which then operates the cover drive unit 8 to control the opening of the wet deposition cover 5 and the closing of the dry deposition cover 4, thereby enabling wet deposition sampling. The anemometer 12 is fixedly mounted on the main body 1 to statistically record the environmental wind speed during the sampling process, facilitating subsequent analysis and processing of the sample data. The monitoring camera 13 is fixedly mounted on the main body 1 and connected to the control mechanism inside the main body 1, enabling remote real-time observation and recording of the overall sampling process and environmental conditions.

[0038] Furthermore, in combination Figure 1 and Figure 3As shown, the atmospheric dry and wet deposition sampling device in this embodiment also includes a solution replenishment mechanism 9 installed on the main body 1 of the box. Specifically, it includes a rotatable injection arm 91 installed on the main body 1 of the box, an injection pipeline 92 fixedly installed on the injection arm 91, and an injection pump and a storage container (not shown in the figure) located inside the main body 1 of the box. The injection pipeline 92 is connected to the storage container through the injection pump to replenish the ethylene glycol solution required for sampling of the dry deposition dust collection cylinder 2 in a timely manner, so as to avoid inaccurate sampling results caused by insufficient ethylene glycol solution.

[0039] It should be noted that the solution replenishment mechanism 9 also includes a drive motor (not shown in the figure) connected to the injection arm 91 to drive the injection arm 91 to rotate so that the injection pipeline 92 located at its end rotates to the upper opening of the dry settling dust collection cylinder 2, thereby replenishing the ethylene glycol solution. In addition, the drive motor and the injection pump are both connected to the control mechanism inside the main body 1. Given that this is a mature existing technology, its specific structure and principle will not be described here.

[0040] In summary, the atmospheric dry and wet deposition sampling device provided by this utility model improves the stability and reliability of the sealing structure during use, ensuring the normal and stable operation of the sampling process. At the same time, by setting independent sealing structures for the dry deposition dust collection cylinder and the wet deposition dust collection cylinder, cross-contamination between the dry deposition samples and the wet deposition samples is avoided.

[0041] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. All equivalent changes and modifications made within the scope of this utility model should still fall within the scope of this utility model.

Claims

1. An atmospheric dry and wet deposition sampling device, comprising a box body (1) and dry deposition dust collection cylinders (2) and wet deposition dust collection cylinders (3) arranged at the top of the box body (1), characterized in that: It also includes two dry settling covers (4) symmetrically placed above the dry settling dust collection cylinder (2), and two wet settling covers (5) symmetrically placed above the wet settling dust collection cylinder (3). The dry settling cover (4) is hinged to the dry settling dust collection cylinder (2), and the wet settling cover (5) is hinged to the wet settling dust collection cylinder (3). When the dry settling dust collection cylinder (2) is in the open state, the wet settling dust collection cylinder (3) is in the closed state, and when the dry settling dust collection cylinder (2) is in the closed state, the wet settling dust collection cylinder (3) is in the open state.

2. The atmospheric wet and dry deposition sampling device of claim 1, wherein: The dry settling cover (4) is provided with a near-end connecting rod (6) and a far-end connecting rod (7) symmetrically arranged on both sides. The near-end connecting rod (6) and the far-end connecting rod (7) are respectively arranged close to both ends of the dry settling cover (4). The two ends of the near-end connecting rod (6) and the far-end connecting rod (7) are respectively movably hinged to the outer wall of the dry settling cover (4) and the dry settling dust collection cylinder (2). The wet settling cover (5) is also provided with a near-end connecting rod (6) and a far-end connecting rod (7) symmetrically arranged on both sides. The near-end connecting rod (6) and the far-end connecting rod (7) are respectively arranged close to both ends of the wet settling cover (5). The two ends of the near-end connecting rod (6) and the far-end connecting rod (7) are respectively movably hinged to the outer wall of the wet settling cover (5) and the wet settling dust collection cylinder (3).

3. The atmospheric wet and dry deposition sampling device of claim 2, wherein: It also includes a capping drive unit (8) located between the dry settling dust collection cylinder (2) and the wet settling dust collection cylinder (3), the capping drive unit (8) being connected to the proximal connecting rod (6) of the dry settling cap (4) and the wet settling cap (5).

4. The atmospheric wet and dry deposition sampling device of claim 3, wherein: The cover drive unit (8) includes a drive motor fixedly installed inside the box body (1) and a drive shaft (81) connected to the output shaft of the drive motor. The drive shaft (61) is provided at the hinge position of the near end link (6) and is perpendicularly connected to it. The end ends of the drive shaft (81) and the drive shaft (61) are respectively provided with meshing bevel gears.

5. The atmospheric wet and dry deposition sampling device of claim 1, wherein: It also includes a solution replenishment mechanism (9) set on the top of the tank body (1), the solution replenishment mechanism (9) includes a rotatable injection arm (91) set on the tank body (1), an injection pipeline (92) fixedly set on the injection arm (91), and an injection pump and a storage container located inside the tank body (1); The injection pipeline (92) is connected to the liquid storage container via the injection pump.

6. The atmospheric wet and dry deposition sampling device of claim 1, wherein: It also includes a rain sensor (11), a wind speed meter (12), and a monitoring camera (13) fixedly installed on the top of the main body (1).

Images