Aerosol sampling device and aerosol sampling system

Abstract

The utility model discloses an aerosol sampling device which comprises an aerosol sampler main body, one end of the aerosol sampler main body is provided with a main sampling port, one end of the main sampling port is in threaded connection with an annular frame, and a filter screen is arranged in the annular frame; large sundries in air can be filtered through the filter screen, the rotating ring is held and rotated clockwise or anticlockwise, the sundries on the filter screen can be scraped off through the blade, then the scraping and cleaning effects are achieved, the blade is pushed to stretch out through the damping spring, the blade can be tightly attached to the filter screen, and therefore the air purification effect is achieved. Water in the water storage box can be guided into the water drainage pipe through the water suction pump and the water conveying pipe, water in the water drainage pipe can be sprayed out through the water drainage opening, then the inner walls of the filter screen and the main sampling opening are flushed, impurities on the filter screen can be effectively removed in a flushing and scraping mode, blockage is avoided, and the sampling efficiency is improved. The collection effect of the equipment is influenced. The utility model further discloses an aerosol sampling system.

Description

Technical Field

[0001] The utility model relates to the technical field of aerosols, in particular to an aerosol sampling device and an aerosol sampling system. Background Art

[0002] Radiation environment quality is an important indicator of good ecological environment quality. Radiation environment monitoring is a direct means of detecting environmental conditions. The air contains a large amount of particulate matter, such as aerosols. Aerosols refer to a gaseous dispersion system composed of solid or liquid particles suspended in a gas medium. The density of these solid or liquid particles can be slightly different from that of the gas medium, or it can be very different. For air quality, a sampling device is needed to collect aerosols in the air. By monitoring and analyzing aerosol samples, the types and contents of radionuclides in the air can be accurately grasped. At present, the main technical problems in the sample collection process of both ultra-large flow aerosol samplers and large flow aerosol samplers are the single collection method and the imperfect accuracy of the collected data.

[0003] In addition, the prior art utilizes a protective cover to protect the sampling device, but during the collection process, debris in the air will be adsorbed on the protective cover, which is prone to clogging and affects the sampling effect of the equipment. Utility Model Content

[0004] The main purpose of the utility model is to provide an aerosol sampling device and an aerosol sampling system, aiming to solve the problem that sundries in the air are adsorbed on the protective cover and are easy to be blocked.

[0005] To achieve the above-mentioned purpose, the aerosol sampling device proposed in the utility model comprises an aerosol sampler body, one end of the aerosol sampler body is provided with a main sampling port, one end of the main sampling port is screwed with an annular frame, and a filter screen is provided inside the annular frame, a slide groove is provided on the annular frame, a movable ring is provided outside, and sliders are provided around the movable ring, the other end of the slider is slidably installed inside the slide groove, and two cleaning scrapers are welded to the inner wall of the movable ring;

[0006] The two cleaning scrapers are provided with telescopic grooves, and blades are inserted into the telescopic grooves. A plurality of damping springs are welded at equal intervals on the outer wall of the blades, and the other end of the damping spring is welded and fixed to the inner wall of the slide groove. The blade edge is fitted with the outer wall of the filter screen, and a rotating ring is welded to the outer wall of the movable ring. A drainage pipe is provided in the center of the main sampling port, and a plurality of drainage ports are provided around the outer wall of the drainage pipe.

[0007] The other end of the drainage pipe passes through the junction of the two cleaning scrapers and is rotatably installed with a rotating connecting pipe. A water storage box is provided on the top of the aerosol sampler body, and a water pump is provided at one end of the water storage box. A water pipe is plugged into the output end of the water pump, and the other end of the water pipe is plugged into and connected to the rotating connecting pipe.

[0008] In an optional embodiment, the annular frame is located outside the main sampling port, and a plurality of auxiliary sampling ports are opened outside the main sampling port, and the auxiliary sampling ports are distributed and arranged in a circular array.

[0009] In an optional embodiment, a sewage outlet is provided at the bottom of the outer wall of the annular frame, and the sewage outlet is communicated with the interior of the chute.

[0010] In an optional embodiment, a pneumatic lifting column is installed at the bottom of the aerosol sampler body through a rotating shaft, and driving members are provided on both sides of the telescopic end of the pneumatic lifting column. A support plate is fixed to the output end of the driving member, and a connecting rod is welded between the two support plates. Two limit clamps are screwed on the bottom end face of the aerosol sampler body, and the two limit clamps are respectively located on both sides of the connecting rod.

[0011] In an optional embodiment, side plates are installed on both sides of the pneumatic lifting column through a damping shaft, and a bottom plate is welded to the bottom of the side plate.

[0012] In an optional embodiment, a fixing plate is provided on the bottom end surface of the pneumatic lifting column, and fixing holes are provided at four corners of the top end surface of the fixing plate, and the bottom plate is located on both sides of the fixing plate.

[0013] In an optional embodiment, two ends of the support plate are provided with angles, forming a bent shape.

[0014] In an optional embodiment, the two cleaning blades are in the shape of a cross.

[0015] The utility model also provides an aerosol sampling system, characterized in that the aerosol sampling system includes an aerosol sampling device, a control module, a flow acquisition module, a meteorological parameter acquisition module, a storage module and a power module. The aerosol sampling device adopts the aerosol sampling device described above, and the flow acquisition module, the meteorological parameter acquisition module and the storage module are respectively electrically connected to the control module and controlled by the control module.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The filter can filter out large debris in the air. Hold the rotating ring and rotate it clockwise or counterclockwise. The blade can be used to scrape off the debris on the filter to achieve the scraping and cleaning effect. The damping spring pushes the blade out so that the blade can be close to the filter. The water in the water storage box can be introduced into the drain pipe by using a water pump and a water pipe. The water in the drain pipe can be sprayed out by using the drain port to rinse the filter and the inner wall of the main sampling port. This method can effectively remove debris on the filter by flushing and scraping to avoid blockage and affect the collection effect of the equipment.

[0018] 2. The height of the aerosol sampler body can be adjusted by the pneumatic lifting column, the support plate can be driven to rotate by the motor, and the angle of the aerosol sampler body can be adjusted by the connecting rod and the limit clamp, which is conducive to better collecting aerosols at different positions. By rotating the side plate, the pneumatic lifting column can be supported from both sides by the side plate, thereby improving the stability of the pneumatic lifting column, and the position of the pneumatic lifting column can be fixed by the fixing plate and the fixing hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0020] Figure 1 It is an isometric view of the entire utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the aerosol sampler of the utility model;

[0022] Figure 3 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 4 This is an overall cross-sectional view of the utility model;

[0024] Figure 5 This is a cross-sectional view of the overall cleaning scraper of the utility model.

[0025] Description of Figure Numbers:

[0026]

[0027]

[0028] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0032] Example 1

[0033] See also Figure 1-Figure 5 The utility model provides an aerosol sampling device, wherein the sampling device 10 includes a sampler body 1 .

[0034] Specifically, the sampler body 1 is provided with a main sampling port 2 at one end, a ring frame 28 is screwed to one end of the main sampling port 2, and a filter screen 3 is provided inside the ring frame 28, a slide groove 4 is provided on the ring frame 28, a movable ring 5 is provided outside the ring frame 28, and sliders 29 are provided around the movable ring 5, and the other end of the slider 29 is slidably installed inside the slide groove 4, and two cleaning scrapers 6 are welded to the inner wall of the movable ring 5, and the two cleaning scrapers 6 are in a cross shape, and telescopic grooves 7 are provided on the two cleaning scrapers 6. , and a blade 9 is inserted into the telescopic slot 7, a plurality of damping springs 8 are welded to the outer wall of the blade 9 at equal intervals, and the other end of the damping spring 8 is welded and fixed to the inner wall of the slide slot 4, the blade of the blade 9 is fitted to the outer wall of the filter screen 3, a rotating ring 101 is welded to the outer wall of the movable ring 5, a drain pipe 11 is provided in the center of the main sampling port 2, and a plurality of drain ports 12 are provided around the outer wall of the drain pipe 11, and the other end of the drain pipe 11 passes through the junction of the two cleaning scrapers 6 and is rotatably mounted with a rotating connecting pipe 13. The rotating ring 101 is connected to a driver, and the driver can drive the rotating ring 101 to rotate.

[0035] A water storage box 14 is provided on the top of the sampler body 1, and a water pump 15 is provided at one end of the water storage box 14. A water delivery pipe 16 is plugged into the output end of the water delivery pipe 15, and the other end of the water delivery pipe 16 is plugged into and communicated with the rotating connecting pipe 13.

[0036] The annular frame 28 is located outside the main sampling port 2, and a plurality of auxiliary sampling ports 18 are provided outside the main sampling port 2, and the auxiliary sampling ports 18 are arranged in a circular array. The auxiliary sampling ports 18 can improve the collection effect of the sampler body 1, and a sewage outlet 17 is provided at the bottom of the outer wall of the annular frame 28, and the sewage outlet 17 is connected to the inside of the chute 4, and the scraped debris can be discharged by the sewage outlet 17. A pneumatic lifting column 19 is installed at the bottom of the sampler body 1 through a rotating shaft, and a driving member 20 is provided on both sides of the telescopic end of the pneumatic lifting column 19, and a support plate 21 is fixed to the output end of the driving member 20, and a connecting rod 22 is arranged between the two support plates 21. Two limit clamps 23 are screwed on the bottom end face of the sampler body 1, and the two limit clamps 23 are respectively located on both sides of the connecting rod 22. The height of the sampler body 1 can be adjusted by the pneumatic lifting column 19.

[0037] The driving member 20 can be used to drive the support plate 21 to rotate, and the connecting rod 22 and the limit clamp block 23 can be used to adjust the angle of the sampler body 1, which is conducive to better collecting aerosols at different positions. Side plates 24 are installed on both sides of the pneumatic lifting column 19 through damping shafts, and a bottom plate 25 is welded to the bottom of the side plate 24. By rotating the side plates 24, the side plates 24 can be used to support the pneumatic lifting column 19 from both sides, thereby improving the stability of the pneumatic lifting column 19. A fixing plate 26 is provided on the bottom end face of the pneumatic lifting column 19, and fixing holes 27 are provided at four corners of the top end face of the fixing plate 26. The bottom plate 25 is located on both sides of the fixing plate 26. The position of the pneumatic lifting column 19 can be fixed by using the fixing plate 26 and the fixing holes 27. An angle is set at both ends of the support plate 21, which is bent. In the embodiment of the utility model, the water pipe 16 is made of PVC material, and the water storage box 14 is transparent, which is convenient for observing the remaining water in the water storage box 14.

[0038] Example 2

[0039] The utility model also provides an aerosol sampling system, which includes an aerosol sampling device 10, a control module, a flow acquisition module, a meteorological parameter acquisition module, a storage module, an interaction module and a power supply module. Since the aerosol sampling device 10 samples all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, and therefore will not be described in detail.

[0040] The flow acquisition module, meteorological parameter acquisition module, storage module, interaction module, power module, drive element and driver are electrically connected to the control module respectively and controlled by the control module. The flow acquisition module is used to collect gas instantaneous flow data in real time and transmit it to the control module. Specifically, the storage module is used for data persistence and storage management, including sampling data such as flow and volume, meteorological parameters, and sampling setting parameters. The interaction module is used to set sampling mode, flow, volume and other parameters, and store the data in the storage module, and query the storage module for equipment sampling records and operation and maintenance records. The interaction module can be a keyboard, display, etc.

[0041] The control module includes a control unit, a calculation unit and a judgment unit.

[0042] The flow acquisition module is used to collect the instantaneous actual flow data of the gas and transmit it to the control module. The judgment unit of the control module is used to determine whether the actual flow data is consistent with the preset flow data, and control the rotation speed of the driving member when it is inconsistent. For example, the cumulative volume within 1 minute is calculated once a minute, and the cumulative volume within all previous sampling times is added to form the total volume. The standard volume within 1 minute is calculated once a minute, and the standard volume within all previous sampling times is added to form the total standard volume.

[0043] The meteorological collection module is used to collect rainfall information, and when there is rainfall information, a stop signal is sent to the sampler body to stop sampling.

[0044] See also Figure 1-Figure 2 When in use, aerosols can be collected through the main sampling port 2 of the sampler body 1, and large debris in the air can be filtered out by using the filter 3. The driver controls the rotating ring 101 to rotate clockwise or counterclockwise, and the blade 9 can be used to scrape the debris on the filter 3. The blade 9 is pushed out by the damping spring 8, so that the blade 9 can be close to the filter 3. The water in the water storage box 14 can be introduced into the drain pipe 11 by using the water pump 15 and the water pipe 16. The water in the drain pipe 11 can be sprayed out by using the drain port 12, so as to rinse the inner wall of the filter 3 and the main sampling port 2. The rotating connecting pipe 13 can prevent the water from being transported when the movable ring 5 rotates. The tube 16 rotates together, and the scraped debris can be discharged using the sewage outlet 17. The height of the sampler body 1 can be adjusted through the pneumatic lifting column 19. The control drive 20 can drive the support plate 21 to rotate. The connecting rod 22 and the limit clamp block 23 can be used to adjust the angle of the sampler body 1, which is conducive to better collecting aerosols at different positions. By rotating the side plate 24, the pneumatic lifting column 19 can be supported from both sides by the side plate 24, thereby improving the stability of the pneumatic lifting column 19. The position of the pneumatic lifting column 19 can be fixed using the fixing plate 26 and the fixing hole 27. The flow acquisition module is used to collect the instantaneous flow data of the gas in real time and transmit it to the control module.

[0045] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An aerosol sampling device, comprising an aerosol sampler body, characterized in that: One end of the aerosol sampler body is provided with a main sampling port, one end of the main sampling port is screwed with an annular frame, and a filter is provided inside the annular frame, a slide groove is provided on the annular frame, a movable ring is provided outside, and sliders are provided around the movable ring, and the other end of the slider is slidably installed inside the slide groove, and two cleaning scrapers are welded to the inner wall of the movable ring; The two cleaning scrapers are provided with telescopic grooves, and blades are inserted into the telescopic grooves. A plurality of damping springs are welded at equal intervals on the outer wall of the blades, and the other end of the damping spring is welded and fixed to the inner wall of the slide groove. The blade edge is fitted with the outer wall of the filter screen, and a rotating ring is welded to the outer wall of the movable ring. A drainage pipe is provided in the center of the main sampling port, and a plurality of drainage ports are provided around the outer wall of the drainage pipe. The other end of the drainage pipe passes through the junction of the two cleaning scrapers and is rotatably installed with a rotating connecting pipe. A water storage box is provided on the top of the aerosol sampler body, and a water pump is provided at one end of the water storage box. A water pipe is plugged into the output end of the water pump, and the other end of the water pipe is plugged into and connected to the rotating connecting pipe.

2. The aerosol sampling device according to claim 1, characterized in that: The annular frame is located outside the main sampling port, and a plurality of auxiliary sampling ports are opened outside the main sampling port, and the auxiliary sampling ports are distributed and arranged in a circular array.

3. The aerosol sampling device according to claim 1, characterized in that: A sewage outlet is provided at the bottom of the outer wall of the annular frame, and the sewage outlet is communicated with the interior of the chute.

4. The aerosol sampling device according to claim 1, characterized in that: A pneumatic lifting column is installed at the bottom of the aerosol sampler body through a rotating shaft, and driving parts are provided on both sides of the telescopic end of the pneumatic lifting column. A support plate is fixed to the output end of the driving part, and a connecting rod is welded between the two support plates. Two limit clamps are screwed on the bottom end face of the aerosol sampler body, and the two limit clamps are respectively located on both sides of the connecting rod.

5. The aerosol sampling device according to claim 4, characterized in that: Side plates are installed on both sides of the pneumatic lifting column through a damping shaft, and a bottom plate is welded to the bottom of the side plate.

6. The aerosol sampling device according to claim 5, characterized in that: A fixing plate is provided on the bottom end surface of the pneumatic lifting column, and fixing holes are provided at four corners of the top end surface of the fixing plate, and the bottom plate is located on both sides of the fixing plate.

7. The aerosol sampling device according to claim 5, characterized in that: The two ends of the support plate are provided with angles and are bent.

8. The aerosol sampling device according to any one of claims 1 to 5, characterized in that: The water delivery pipe is made of PVC material, and the water storage box is transparent.

9. The aerosol sampling device according to any one of claims 1 to 5, characterized in that: The two cleaning blades are in the shape of a cross.

10. An aerosol sampling system, characterized in that: The aerosol sampling system includes an aerosol sampling device, a control module, a flow acquisition module, a meteorological parameter acquisition module, a storage module and a power module. The aerosol sampling device adopts the aerosol sampling device described in any one of claims 1 to 9. The flow acquisition module, the meteorological parameter acquisition module and the storage module are respectively electrically connected to the control module and controlled by the control module.

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