Atmospheric dry-wet sedimentation collecting device
By designing a device that includes both dry and wet deposition collection devices, the stability and durability of the separate collection device for dry and wet deposition are achieved, thus solving the problems of stability and durability of existing atmospheric dry and wet deposition collection devices.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-03-27
AI Technical Summary
Existing atmospheric deposition collection devices cannot collect dry and wet deposition separately, and cannot effectively separate dry deposition particles of different sizes, affecting the accuracy and precision of subsequent analysis.
A device including a dry sedimentation collection device and a wet sedimentation collection device was designed. By setting filter screens with different pore sizes, the dry sedimentation and wet sedimentation are separated and collected. The device adopts a three-stage progressive filtration system using acrylic material and nylon filter membrane.
Separate collection of dry and wet sedimentation was achieved, which improved the accuracy and efficiency of analysis, reduced filter clogging, enhanced the stability and durability of the device, and ensured the integrity of the samples and the reliability of the data.
Smart Images
Figure CN224051705U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to environmental monitoring equipment field, concretely relates to a kind of atmospheric dry and wet deposition collection device. BACKGROUND
[0002] Atmospheric deposition is generally divided into dry deposition and wet deposition, and there are obvious differences in source, migration mechanism, time variation and environmental impact. Collecting dry and wet deposition separately not only can accurately evaluate the deposition flux and ecological environmental load of atmospheric pollutants, but also can provide scientific basis for atmospheric pollution prevention and control, water body eutrophication control and ecological protection. Therefore, it is crucial to distinguish and separately collect dry deposition and wet deposition in deposition monitoring.
[0003] At present, in the existing atmospheric deposition collection, a single cylinder is used to mix and collect dry deposition and wet deposition, which is not conducive to subsequent analysis and research of the two, and it is difficult to accurately obtain the key data of dry deposition and wet deposition, thereby affecting the accurate assessment of atmospheric environmental conditions. Since the structure of the single cylinder is simple, it cannot effectively separate and collect dry deposition of different particle sizes. Therefore, to solve the above problems, there is an urgent need for a device that can separately collect dry deposition and wet deposition and effectively separate and collect dry deposition of different particle sizes. SUMMARY
[0004] Therefore, the purpose of the utility model is to overcome the defects in the prior art, provide an atmospheric dry and wet deposition collection device, which can effectively separate and collect dry deposition of different particle sizes based on separately collecting dry deposition and wet deposition.
[0005] The atmospheric dry and wet deposition collection device of the utility model comprises a dry deposition collection device and a wet deposition collection device.
[0006] The dry deposition collection device comprises a first cylinder, a circular table and a second cylinder connected in sequence from top to bottom; the diameter of the first cylinder is greater than that of the second cylinder, the top of the circular table is adapted to the bottom of the first cylinder, and the bottom of the circular table is adapted to the top of the second cylinder; the first cylinder and the second cylinder are both provided with a filter screen, and the pore size of the filter screen of the first cylinder is greater than that of the second cylinder.
[0007] The top of the wet deposition collection device is provided with a clamping groove for clamping the outer edge of the first cylinder, so that the dry deposition collection device is nested inside the wet deposition collection device, and there is a height difference between the bottom of the dry deposition collection device and the bottom of the wet deposition collection device.
[0008] Further, the first cylinder is provided with a first filter screen at the top, and a second filter screen at the bottom; the pore size of the first filter screen is greater than that of the second filter screen.
[0009] Further, the second cylindrical bottom is provided with a third filter screen; the aperture of the third filter screen is smaller than the aperture of the second filter screen.
[0010] Further, the first filter screen and the second filter screen both adopt square apertures.
[0011] Further, the third filter screen adopts a nylon filter membrane.
[0012] Further, the wet deposition collecting device is in a cylindrical shape.
[0013] Further, the device further comprises a communication pipe in communication with the bottom of the wet deposition collecting device; the length direction of the communication pipe is parallel to the height direction of the wet deposition collecting device, so as to measure the height of the wet deposition in the wet deposition collecting device.
[0014] The atmospheric dry and wet deposition collecting device has the advantages that: the dry deposition collecting device and the wet deposition collecting device are arranged, so that the dry deposition and the wet deposition are collected respectively; the filter screens with different apertures are arranged in the dry deposition collecting device, so that the dry deposition with different particle sizes is effectively separated and collected; the dry deposition and the wet deposition are collected separately, so that the analysis of the composition and the content of the two is more accurate; and the filter screens of different layers work cooperatively, the blockage of the lower filter screen by the large-particle deposition is reduced, the stable operation of the device is ensured, and the collection efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS
[0015] The atmospheric dry and wet deposition collecting device will be further described below in combination with the drawings and embodiments:
[0016] Figure 1 Fig. 1 is a structural schematic view of the atmospheric dry and wet deposition collecting device of the present application;
[0017] Figure 2 Fig. 2 is a structural schematic view of the dry deposition collecting device of the present application;
[0018] Figure 3 Fig. 3 is a structural schematic view of the wet deposition collecting device of the present application;
[0019] In the drawings: 1 is a first cylinder, 2 is a circular table, 3 is a second cylinder, 4 is a first filter screen, 5 is a second filter screen, 6 is a third filter screen, 7 is a communication pipe, 8 is a dry deposition collecting device, and 9 is a wet deposition collecting device. DETAILED DESCRIPTION
[0020] The atmospheric dry and wet deposition collecting device will be further described below in combination with the drawings and embodiments:
[0021] The atmospheric dry and wet deposition collecting device of the present application comprises a dry deposition collecting device 8 and a wet deposition collecting device 9, which are both made of acrylic material.
[0022] The dry sediment collection device 8 comprises a first cylinder 1, a circular table 2 and a second cylinder 3 connected in sequence from top to bottom; the diameter of the first cylinder 1 is larger than that of the second cylinder 3, the top of the circular table 2 is adapted to the bottom of the first cylinder 1, and the bottom of the circular table 2 is adapted to the top of the second cylinder 3; the first cylinder 1 and the second cylinder 3 are both provided with filter screens, and the pore size of the filter screen of the first cylinder 1 is larger than that of the second cylinder 3; wherein the diameter of the first cylinder 1 is 40 cm, and the diameter of the second cylinder 3 is 20 cm; the adaptation refers to the same size or size, for example, the top of the circular table 2 is circular, and the bottom of the first cylinder 1 is also circular, and the sizes of the two are the same, which will not be described here.
[0023] The top of the wet sediment collection device 9 is provided with a clamping groove for clamping the outer edge of the first cylinder 1, so that the dry sediment collection device 8 is nested inside the wet sediment collection device 9, and there is a height difference between the bottom of the dry sediment collection device 8 and the bottom of the wet sediment collection device 9.
[0024] Through the structure of the utility model, efficient separation and independent collection of dry sediment and wet sediment are realized. Among them, the dry sediment collection device 8 adopts the shape structure of the first cylinder 1, the circular table 2 and the second cylinder 3 connected in sequence, which not only enhances the overall stability of the device, but also can effectively prevent large-particle impurities from blocking fine filter screens through graded filtration of filter screens with different pore sizes, thereby improving the efficiency and accuracy of sediment collection.
[0025] The circular table 2 as a transition structure connecting the first cylinder 1 and the second cylinder 3 can realize smooth and stable connection between the two, avoid structural stress concentration and mechanical strength reduction caused by diameter mutation, and thus improve the stability and durability of the overall device. At the same time, the gradual shrinkage design of the circular table 2 structure can guide the sediment and permeated water to flow smoothly downward, reduce sedimentation and blockage, and thus improve the collection efficiency. Moreover, the transition form of the circular table 2 can also optimize the airflow flow path, reduce turbulence and backflow, and further improve the collection effect of the sediment.
[0026] The wet sediment collection device 9 is provided with a clamping groove at the top, which can stably clamp the dry sediment collection device 8, so that it is suspended inside the wet sediment device, avoiding direct contact between the bottoms of the two, ensuring the natural accumulation of wet sediments, and preventing the dry sediment device from being affected by moisture and affecting the sample quality.
[0027] In the embodiment, the first cylinder 1 is provided with a first filter screen 4 at the top and a second filter screen 5 at the bottom; the pore size of the first filter screen 4 is larger than that of the second filter screen 5. Among them, the pore size of the first filter screen 4 is 2 cm, and the pore size of the second filter screen 5 is 5 mm.
[0028] Through the above setting, more effective hierarchical filtering can be realized. The first filter screen 4 at the top has a larger aperture and can intercept larger impurities such as birds, insects, dry branches, leaves and the like, thereby playing a role of preliminary filtering, reducing the burden of subsequent filter screens and prolonging the service life of the equipment. The second filter screen 5 at the bottom has a smaller aperture and can further refine and intercept smaller atmospheric particulate matters, thereby improving the collection accuracy of dry sediments and ensuring the accuracy of subsequent analysis data. Through the double-layer filter screen setting, a progressive filtering system from coarse to fine is formed, which not only improves the overall filtering efficiency, but also reduces the risk of filter screen blockage, facilitates daily maintenance and sample integrity protection, and enhances the stability and reliability of the device.
[0029] In this embodiment, the second cylinder 3 is provided with a third filter screen 6 at the bottom; the aperture of the third filter screen 6 is smaller than that of the second filter screen 5. The aperture of the third filter screen 6 is 2 microns.
[0030] Through the above setting, higher-precision sediment hierarchical collection can be realized. Through the layer-by-layer reduction of the filter screen aperture, the first, second and third filter screens 6 form a three-level progressive filtering system, which can effectively intercept atmospheric particulate matters in different ranges from large to small, especially the third filter screen 6 can efficiently capture small particles, thereby improving the integrity of the overall collection of dry sediments. Not only can more comprehensive sediment samples with particle size distribution be obtained to provide more accurate data support for subsequent particulate composition analysis and pollution tracing, but also the loss of small particles with the permeated water body can be avoided.
[0031] In this embodiment, the first filter screen 4 and the second filter screen 5 both adopt square apertures. Compared with the traditional circular aperture, the square aperture has a higher opening rate, which can improve the air flow and sediment passing efficiency while ensuring the filtering effect, reduce the accumulation and blockage of particulate matters on the filter screen surface, and prolong the service life of the filter screen. At the same time, the square aperture structure is simple and uniform in stress, which is not easy to deform, thereby improving the stability and durability of the overall device. Moreover, the square aperture is convenient for processing, manufacturing, cleaning and maintenance.
[0032] In this embodiment, the third filter screen 6 adopts a nylon filter membrane. The nylon filter membrane has excellent corrosion resistance, wear resistance and flexibility, which can adapt to various complex atmospheric environments and ensure that it is not easy to be damaged during long-term use, thereby improving the durability and reliability of the device. In addition, the nylon filter membrane has uniform aperture distribution and high filtering precision, which can effectively intercept small particulate matters and ensure the integrity of the dry sediment sample, thereby providing reliable support for subsequent fine analysis.
[0033] In this embodiment, the wet deposition collection device 9 is cylindrical. The cylindrical structure is uniformly stressed, has good stability and external impact resistance, can be used stably for a long time in outdoor variable environment, and can reduce the risk of liquid leakage caused by deformation or damage. At the same time, the cylindrical design facilitates the natural accumulation and height measurement of the deposition water body, and the combination of the connecting pipe 7 reading can more accurately reflect the wet deposition amount, thereby improving the reliability of the monitoring data. Moreover, the inside of the cylinder has no obvious corners and is not easy to accumulate impurities, facilitating cleaning and maintenance, and improving the overall collection efficiency and service life of the device.
[0034] In this embodiment, the wet deposition collection device 9 is cylindrical. The cylindrical structure is uniformly stressed, has good stability and external impact resistance, can be used stably for a long time in outdoor variable environment, and can reduce the risk of liquid leakage caused by deformation or damage. At the same time, the cylindrical design facilitates the natural accumulation and height measurement of the deposition water body, and the combination of the connecting pipe 7 reading can more accurately reflect the wet deposition amount, thereby improving the reliability of the monitoring data. Moreover, the inside of the cylinder has no obvious corners and is not easy to accumulate impurities, facilitating cleaning and maintenance, and improving the overall collection efficiency and service life of the device.
[0035] Through the above setting, the height of the liquid inside the wet deposition collection device 9 can be directly and accurately measured by using the principle of the connecting pipe 7, without the need to frequently open the device or directly observe the inside, avoiding disturbance or pollution to the sample, thereby improving the accuracy and continuity of the collection. At the same time, a scale can be provided on the connecting pipe 7 to facilitate quick reading of the deposition amount, simplifying the operation process and thereby improving the monitoring efficiency. In addition, the sealing and safety of the device are also enhanced, thereby prolonging the service life.
[0036] In order to better understand the present utility model, the actual installation and use process thereof will be described as follows:
[0037] Actual installation: according to the component characteristics and design requirements, first process the dry deposition collection device 8, since it is made of acrylic material, carefully check whether each component is damaged or deformed before assembly. For the three-layer nylon filter screen, the first filter screen 4 has a hole diameter of 2 cm and is square in design. When installing, make sure that it is fixed flat on the upper part of the first cylinder 1. A special filter screen fixing ring can be used to tightly clamp the edge of the first filter screen 4 in the fixing ring, and then the fixing ring is installed in the pre-set clamping groove inside the cylinder to ensure stable installation of the filter screen without shaking or deviation, preventing large impurities from entering from the gap.
[0038] The second filter screen 5 has a hole diameter of 5 mm and is also square, located at the lowermost end of the first cylinder 1. When installing, first install a filter screen mounting seat with a support structure at the bottom of the cylinder, lay the second filter screen 5 on the mounting seat, and fix the edge of the second filter screen 5 through the fastening bolts or buckles on the mounting seat to make it tightly fit with the bottom of the cylinder, avoiding the leakage of large particle deposits from the gap between the filter screen and the cylinder wall.
[0039] The third filter screen 6 is a nylon filter membrane with a pore size of 2 microns and is installed at the lowermost end of the second cylinder 3. Due to its thin and delicate material, extra care is needed during installation. A protective pad can be placed at the bottom of the cylinder before placing the third filter screen 6 on it. Then, a compression ring that fits the inner diameter of the cylinder is used to compress and fix the third filter screen 6, preventing it from shifting or breaking during use.
[0040] After completing the assembly of the dry sediment collection device 8, it is embedded in the wet sediment collection device 9. The wet sediment collection device 9 is an acrylic cylinder. When embedded, the upper part of the wet sediment collection device 9 should be accurately clamped at the outer edge of the upper cylindrical port of the dry sediment collection device 8. A rubber sealing pad can be placed on the upper edge of the wet sediment collection device 9 to increase friction and sealing, prevent the dry sediment device from shaking, and prevent wet sediments from overflowing from the gap between the two.
[0041] Usage: When atmospheric sedimentation occurs, atmospheric sediments enter from the upper opening of the dry sediment collection device 8. Bird, insect, and other large impurities are first intercepted by the first filter screen 4 under the action of gravity and air resistance. Dry sediments with a particle size greater than 5 mm continue to fall after passing through the first filter screen 4 and are collected by the second filter screen 5. The 5 mm pore size design of the second filter screen 5 can effectively intercept these large-particle sediments, allowing them to accumulate on the surface of the filter screen. In actual operation, as the amount of collected large-particle sediments increases, the filter screen may become clogged. At this time, the second filter screen 5 can be regularly inspected, and if clogging is found, the sediment sample can be collected by disassembling the filter screen fixing structure.
[0042] Fine-particle dry sediments continue to move downward after passing through the second filter screen 5 and are eventually collected by the third filter screen 6. The 2-micron pore size nylon filter membrane of the third filter screen 6 can effectively filter these small-particle sediments while allowing water to permeate. In actual operation, as the amount of collected particle sediments increases, the filter membrane may become clogged. At this time, the third filter screen 6 can be regularly inspected, and if clogging is found, the sediment sample can be collected by disassembling the filter membrane fixing structure.
[0043] Wet sediments are not intercepted by the filter screen when passing through the dry sediment collection device 8 and directly fall into the wet sediment collection device 9. When measuring the amount of wet sediment, observe the scale on the connecting pipe 7. Since the connecting pipe 7 is connected to the bottom of the wet sediment collection device 9 and is internally connected, according to the principle of the connecting pipe 7, the height of the wet sediment in the connecting pipe 7 is consistent with the height of the wet sediment in the wet sediment collection device 9. When reading the scale, ensure that the line of sight is level with the scale line to avoid reading errors and obtain accurate wet sediment height data.
[0044] When the filter screen needs to be replaced, the dry sediment collecting device 8 is first carefully taken out from the wet sediment collecting device 9 to avoid collision and damage to the components. Then, according to the reverse order of installation, the three layers of filter screens are disassembled respectively. For the first filter screen 4, the fixing bolt of the fixing ring is loosened, the fixing ring is removed, and the first filter screen 4 can be taken out; for the second filter screen 5, the fastening bolt on the mounting seat is unscrewed or the buckle is opened, and the second filter screen 5 is taken off from the mounting seat; for the third filter screen 6, the pressing ring is loosened, and the third filter screen 6 is carefully taken off from the protective pad. After replacing the new filter screen, the above-mentioned installation steps are followed to reinstall, ensure that each filter screen is installed in place, and the device can continue to be used normally.
[0045] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the present application, and all should be covered in the scope of the claims of the present application.
Claims
1. An atmospheric wet and dry deposition collection device, characterized by: The dry precipitation collection device and the wet precipitation collection device are included. The dry precipitation collection device includes a first cylinder, a circular table and a second cylinder which are sequentially communicated from top to bottom; the diameter of the first cylinder is larger than that of the second cylinder; the top of the circular table is adapted to the bottom of the first cylinder, and the bottom of the circular table is adapted to the top of the second cylinder; the first cylinder and the second cylinder are both provided with filter screens, and the aperture of the filter screen of the first cylinder is larger than that of the second cylinder. The top of the wet precipitation collection device is provided with a clamping groove for clamping the outer edge of the first cylinder, so that the dry precipitation collection device is nested in the wet precipitation collection device, and there is a height difference between the bottom of the dry precipitation collection device and the bottom of the wet precipitation collection device.
2. An atmospheric wet and dry fallout collection device according to claim 1, characterised in that: The top of the first cylinder is provided with a first filter screen, and the bottom of the first cylinder is provided with a second filter screen; the aperture of the first filter screen is larger than that of the second filter screen.
3. An atmospheric wet and dry fallout collection device according to claim 2, characterised in that: The bottom of the second cylinder is provided with a third filter screen; the aperture of the third filter screen is smaller than that of the second filter screen.
4. An atmospheric wet and dry fallout collection device according to claim 2, characterised in that: The first filter screen and the second filter screen both adopt square apertures.
5. An atmospheric wet and dry fallout collection device according to claim 3, wherein: The third filter screen adopts a nylon filter membrane.
6. The atmospheric wet and dry fallout collection apparatus of claim 1, wherein: The wet precipitation collection device is in a cylindrical shape.
7. An atmospheric wet and dry fallout collection device according to claim 1, wherein: A communication pipe which is in communication with the bottom of the wet precipitation collection device is further included; the length direction of the communication pipe is parallel to the height direction of the wet precipitation collection device, so as to measure the height of the wet precipitation in the wet precipitation collection device.