Monitoring device and monitoring method for atmospheric particulate concentration

Abstract

The invention relates to the technical field of environmental monitoring, and discloses a monitoring device and a monitoring method for atmospheric particulate concentration. The monitoring device for the atmospheric particulate concentration comprises a base, a guide column, an atmospheric comprehensive sampler main body, a sliding sleeve, a mounting plate, a lifting adjusting assembly, a sampling assembly, a supporting assembly I, a supporting assembly II and a steering adjusting assembly, the guide column is fixedly installed on the top of the base, the first supporting assembly is arranged on the guide column, the atmosphere comprehensive sampler is arranged on the first supporting assembly, the sliding sleeve is axially installed on the outer side of the guide column in a sliding mode, and the installation plate is circularly arranged and fixedly installed on the outer side of the sliding sleeve. The air sampling device is reasonable in design, not only can perform air sampling operation from different height positions according to needs, but also can realize automatic adjustment of the sampling orientation according to the wind direction, can well adapt to guide columns with different diameters, and also has the advantages of high efficiency, stability and simplicity and convenience in operation.

Description

Technical Field

[0001] The present invention relates to the technical field of environmental monitoring, and in particular to a monitoring device and a monitoring method for atmospheric particulate matter concentration. Background Art

[0002] Monitoring of atmospheric particulate matter concentration is extremely important for assessing air quality, studying the sources and propagation patterns of air pollution, and protecting public health and the ecological environment.

[0003] Traditional atmospheric particulate matter concentration monitoring devices often have many limitations. In terms of sampling height, most of them are fixed at a specific height, making it difficult to flexibly perform sampling operations at different heights. Since the distribution of atmospheric particulate matter is obviously uneven in the vertical direction, the emission characteristics of pollution sources at different heights and differences in meteorological conditions will lead to different concentrations and compositions of particulate matter. The fixed-height sampling method cannot fully reflect the true situation of atmospheric particulate matter, resulting in the lack of comprehensiveness and representativeness of the monitoring data obtained, which is difficult to meet the needs of in-depth research and accurate assessment of the atmospheric environment.

[0004] In terms of adjusting the sampling direction, traditional devices usually lack the function of automatically adjusting the sampling direction according to the wind direction. Changes in wind direction will significantly affect the transmission path and concentration distribution of atmospheric particulate matter, and sampling devices that cannot automatically adjust to the wind may miss the main source direction of particulate matter during the sampling process, or collect non-representative samples that are subject to more local interference, thereby reducing the accuracy and reliability of monitoring data and being detrimental to the accurate analysis of the source and diffusion law of atmospheric particulate matter.

[0005] In addition, traditional monitoring devices have poor adaptability to installation support structures of different diameters. In actual application scenarios, the diameter of the installation support column or rail may vary depending on site conditions and facility specifications. If the monitoring device cannot adapt well to different diameters, it will cause great inconvenience in installation, commissioning and use, increase equipment installation costs and time, and limit its wide application in diverse environments.

[0006] In view of the shortcomings of the above-mentioned traditional atmospheric particulate matter concentration monitoring device, the present invention proposes a new type of atmospheric particulate matter concentration monitoring device and monitoring method. Summary of the invention

[0007] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a monitoring device and a monitoring method for atmospheric particulate matter concentration.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] A monitoring device for atmospheric particulate matter concentration, comprising a base, a guide column, an atmospheric integrated sampler body, a sliding sleeve, a mounting plate, a lifting adjustment component, a sampling component, a first support component, a second support component and a steering adjustment component;

[0010] The guide column is fixedly installed on the top of the base, the support component 1 is arranged on the guide column, the atmospheric integrated sampler is arranged on the support component 1, the sleeve is axially slidably installed on the outside of the guide column, the mounting plate is circularly arranged and fixedly installed on the outside of the sleeve, the lifting adjustment component is arranged on the mounting plate and connected to the guide column, the support component 2 is arranged on the sleeve, the sampling component is arranged on the support component 2 and connected to the main body of the atmospheric integrated sampler, and the steering adjustment component is arranged on the support component 2.

[0011] Preferably, the support assembly includes a support plate and two support wheels, the support plate is rotatably mounted on the outer side of the guide column, support wheels are rotatably mounted on both sides of the support plate, both support wheels maintain rolling contact with the top side of the base, and the main body of the atmospheric comprehensive sampler is fixedly mounted on the top side of the support plate.

[0012] Preferably, the lifting and adjusting components include multiple rotating shafts, multiple support plates, multiple moving wheels and multiple motors. Multiple mounting grooves are opened on the mounting plate. Rotating shafts are rotatably mounted in the multiple mounting grooves. Support plates are radially fixedly mounted on the multiple rotating shafts. Moving wheels are rotatably mounted on the side of multiple support plates away from the mounting plates. Motors are fixedly mounted on the multiple support plates. The output shafts of the multiple motors are respectively and axially fixedly connected to the corresponding moving wheels, and the multiple moving wheels are in contact with the outer side of the guide column.

[0013] Preferably, the lifting and adjusting assembly also includes a plurality of torsion springs, and a circular groove is opened on the plurality of support plates based on the rotating shaft as the center, and a torsion spring is fixedly installed in the circular groove. The torsion spring is movably sleeved on the outside of the rotating shaft and fixedly connected to the inner wall of the installation groove.

[0014] Preferably, the sampling assembly includes an annular box, two L-shaped tubes, a delivery pipe and a hose. The outer movable sleeve of the guide column is provided with an annular box, the annular box is located above the mounting plate, and two symmetrically arranged L-shaped tubes are fixedly installed on the top of the annular box. The delivery pipe is fixedly installed on the annular box, and the delivery pipe is connected to the main body of the atmospheric comprehensive sampler with the same hose, and an electromagnetic valve is fixedly installed on the L-shaped tube.

[0015] Preferably, a conical bucket is fixedly mounted on one end of the L-shaped tube away from the annular box, and a mesh plate arranged in a spherical shape is fixedly mounted inside the conical bucket.

[0016] Preferably, the second support component includes a support ring, two fixed rods and a support block. The support ring is rotatably installed on the outer side of the sliding sleeve, and two fixed rods are fixedly installed on the top side of the support ring. The two L-shaped tubes are fixedly connected to the corresponding fixed rods respectively, and a support block is fixedly installed on the support ring, and the support block is fixedly connected to the conveying pipe.

[0017] Preferably, a plurality of guide wheels are radially rotatably mounted on the outer side of the sliding sleeve, annular grooves are provided on the top and bottom sides of the support ring, and the plurality of guide wheels are respectively rollingly mounted in the corresponding annular grooves.

[0018] Preferably, the steering adjustment assembly comprises a guide plate and two connecting rods, the connecting rods are radially fixedly mounted on the two fixed rods, and the same guide plate is fixedly mounted on the two connecting rods.

[0019] The present invention also provides a method for monitoring the concentration of atmospheric particulate matter, comprising the following steps:

[0020] S1: Turn on the power, connect the hose to the main body of the atmospheric integrated sampler and the delivery pipe, start the motor and control the moving wheel to move upward along the guide column to the required height through the motor;

[0021] S2: After reaching the required sampling height, the guide plate can control the support ring to rotate through the connecting rod and the fixed rod under the action of the wind direction, and the two conical buckets are respectively facing the direction of the wind and the direction away from the wind. Then the main body of the atmospheric comprehensive sampler is started and the atmospheric sampling operation at the height position is performed. When sampling is required facing the direction of the wind, the solenoid valve on the other L-shaped tube can be closed, and vice versa;

[0022] S3: After one sampling is completed, the motor controls the moving wheel to continue to move along the guide column to another position where sampling is required and sampling is performed again according to the above steps.

[0023] Compared with the prior art, the present invention provides a monitoring device and a monitoring method for atmospheric particulate matter concentration, which have the following beneficial effects:

[0024] (1) The height of the conical bucket can be adjusted by the lifting and adjusting assembly, so that the atmospheric sampling operation can be realized from different height positions, and the device can be well adapted to guide columns of different diameters. At the same time, the steering adjustment assembly can automatically adjust the direction of the conical bucket according to the wind direction, and with the cooperation of the solenoid valve, the atmospheric sampling operation can be carried out according to the actual sampling needs.

[0025] (2) The arrangement of support assembly 1 and support assembly 2 can provide effective and stable support for the atmospheric integrated sampler body, sampling assembly and steering adjustment assembly respectively. Meanwhile, the cooperation of the multiple guide wheels and two annular grooves can effectively reduce the resistance of the support ring in support assembly 2 when rotating on the sliding sleeve, thereby facilitating the steering adjustment assembly to better adjust the sampling direction.

[0026] In summary, the atmospheric particulate matter concentration monitoring device and monitoring method of the present invention can not only perform atmospheric sampling operations from different heights as needed, but also can automatically adjust the sampling direction according to the wind direction, and can adapt well to guide columns of different diameters, and also has the advantages of high efficiency, stability and easy operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of the three-dimensional structure of a device for monitoring the concentration of atmospheric particulate matter proposed by the present invention;

[0028] Figure 2 For the present invention Figure 1 A schematic diagram of a partial cross-sectional structure;

[0029] Figure 3 For the present invention Figure 1 Schematic diagram of the local three-dimensional structure;

[0030] Figure 4 The present invention proposes Figure 3 Schematic diagram of the local three-dimensional structure;

[0031] Figure 5 This is a schematic diagram of the structure of the sampling assembly and the support block, the conical bucket and the mesh plate part proposed by the present invention;

[0032] Figure 6 This is a schematic diagram of the three-dimensional structure of the support ring, annular groove and fixing rod part proposed in the present invention.

[0033] In the figure: 1. base; 11. guide column; 12. support plate; 13. support wheel; 2. atmospheric integrated sampler body; 3. sleeve; 301. guide wheel; 31. mounting plate; 32. rotating shaft; 33. support plate; 34. torsion spring; 35. moving wheel; 36. motor; 4. support ring; 41. fixing rod; 5. annular box; 51. L-shaped tube; 511. conical bucket; 512. mesh plate; 513. solenoid valve; 52. delivery pipe; 521. support block; 53. hose; 6. guide plate; 61. connecting rod. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0035] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0036] Reference Figure 1-6 A monitoring device for atmospheric particulate matter concentration includes a base 1, a guide column 11, an atmospheric integrated sampler body 2, a sleeve 3 and a mounting plate 31, wherein the guide column 11 is fixedly mounted on the top of the base 1, a support plate 12 is rotatably mounted on the outer side of the guide column 11, and support wheels 13 are rotatably mounted on both sides of the support plate 12, and both support wheels 13 are in rolling contact with the top side of the base 1, and the atmospheric integrated sampler body 2 is fixedly mounted on the top side of the support plate 12, which can provide support for the atmospheric integrated sampler body 2 and can control its position adjustment based on the guide column 11 as the center as needed;

[0037] The sliding sleeve 3 is axially slidably installed on the outer side of the guide column 11, and the mounting plate 31 is circularly arranged and fixedly installed on the outer side of the sliding sleeve 3. A plurality of mounting grooves are provided on the mounting plate 31, and a rotating shaft 32 is rotatably installed in the plurality of mounting grooves. A plurality of support plates 33 are radially fixedly installed on the plurality of rotating shafts 32, and a moving wheel 35 is rotatably installed on the side of the plurality of support plates 33 away from the mounting plate 31. A plurality of motors 36 are fixedly installed on the plurality of support plates 33, and the output shafts of the plurality of motors 36 are axially fixedly connected with the corresponding moving wheels 35, respectively, and the plurality of moving wheels 35 are abutted against the outer side of the guide column 11, so as to control the sliding sleeve 3 and the mounting plate 31 to be lifted and lowered on the guide column 11. A circular groove is provided on the plurality of support plates 33 based on the rotating shaft 32 as the center, and a torsion spring 34 is fixedly installed in the circular groove. The torsion spring 34 is movably sleeved on the outer side of the rotating shaft 32 and fixedly connected to the inner wall of the mounting groove, so as to ensure that the plurality of moving wheels 35 can maintain a stable abutment state with the guide column 11, and can also well adapt to guide columns 11 with different diameters.

[0038] An annular box 5 is provided on the outer movable sleeve of the guide column 11. The annular box 5 is located above the mounting plate 31. Two symmetrically arranged L-shaped tubes 51 are fixedly installed on the top of the annular box 5. A delivery tube 52 is fixedly installed on the annular box 5. The delivery tube 52 is connected to the main body 2 of the atmospheric comprehensive sampler with the same hose 53. A solenoid valve 513 is fixedly installed on the L-shaped tube 51, which is convenient for the atmospheric comprehensive sampler main body 2 to perform sampling operations, and sampling can be selected through any L-shaped tube 51 as needed. A support ring 4 is rotatably installed on the outer side of the sliding sleeve 3. Two fixing rods 41 are fixedly installed on the top side of the support ring 4. The two L-shaped tubes 51 are fixedly connected to the corresponding fixing rods 41 respectively. A support block 521 is fixedly installed on the support ring 4. The support block 521 is fixedly connected to the delivery tube 52, which can provide stable support for the L-shaped tube 51 and the delivery tube 52.

[0039] The two fixing rods 41 are radially fixedly mounted with connecting rods 61 , and the same guide plate 6 is fixedly mounted on the two connecting rods 61 , so that the sampling direction can be adjusted automatically according to the change of wind direction.

[0040] In this embodiment, in order to increase the air intake range while preventing large particles of debris from entering the L-shaped tube 51, a conical bucket 511 is fixedly installed at one end of the L-shaped tube 51 away from the annular box 5, and a spherical mesh plate 512 is fixedly installed inside the conical bucket 511.

[0041] In this embodiment, in order to reduce the resistance of the rotating ring during rotation, multiple guide wheels 301 are radially rotatably installed on the outer side of the sleeve 3, and annular grooves are opened on the top and bottom sides of the support ring 4. The multiple guide wheels 301 are respectively rollingly installed in the corresponding annular grooves.

[0042] Among them, in order to ensure stability when lifting and lowering on the guide column 11, the number of support rods 33 and movable wheels 35 should not be less than three. It is also worth noting that the number of support rods 33 and movable wheels 35 is determined according to actual conditions. For example, when the cross-section of the guide column 1 is square, the number of support rods 33 and movable wheels 35 needs to be set to four.

[0043] This embodiment also provides a method for using the device for monitoring the concentration of atmospheric particulate matter, comprising the following steps:

[0044] S1: Place the monitoring device at a predetermined monitoring position, ensure the installation stability of the base 1 and the guide column 11, then turn on the power, connect the hose 53 to the atmospheric integrated sampler body 2 and the delivery pipe 52, start the motor 36 and control the moving wheel 35 to climb up along the guide column 11 to the required height through the motor 36. During this process, the moving wheel 35 can be stably abutted against the outer side of the guide column 11 under the action of the torsion spring 34, thereby ensuring the stability of the device when climbing or descending;

[0045] S2: After reaching the required sampling height, under the action of the wind direction, the guide plate 6 can control the support ring 4 to rotate through the connecting rod 61 and the fixing rod 41, and make the two conical buckets 511 face the direction of the wind and the direction away from the wind respectively, and then start the atmospheric comprehensive sampler body 2 and perform the atmospheric sampling operation at the height position. When it is necessary to face the direction of the wind for sampling, the solenoid valve 513 on the other L-shaped tube 51 can be closed, and vice versa. In the sampling process, the mesh plate 512 arranged in a spherical surface can prevent large particles of debris from entering the conical bucket 511, thereby avoiding pipeline blockage and the like;

[0046] S3: After one sampling is completed, the motor 36 controls the moving wheel 35 to continue moving along the guide column 11 to another position where sampling is required and sampling is performed again according to the above steps. The sample enters the main body 2 of the atmospheric comprehensive sampler after being transported through the L-shaped tube 51, the annular box 5, the telescopic tube and the hose 53, and then the particle concentration is monitored in real time.

[0047] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

Claims

1. A monitoring device for atmospheric particulate matter concentration, comprising a base (1), a guide column (11), an atmospheric integrated sampler body (2), a sleeve (3), a mounting plate (31), a lifting adjustment component, a sampling component, a first support component, a second support component and a steering adjustment component; The guide column (11) is fixedly mounted on the top of the base (1), the support component 1 is arranged on the guide column (11), the atmospheric integrated sampler is arranged on the support component 1, the sleeve (3) is axially slidably mounted on the outside of the guide column (11), the mounting plate (31) is circularly arranged and fixedly mounted on the outside of the sleeve (3), the lifting adjustment component is arranged on the mounting plate (31) and connected to the guide column (11), the support component 2 is arranged on the sleeve (3), the sampling component is arranged on the support component 2 and connected to the atmospheric integrated sampler body (2), and the steering adjustment component is arranged on the support component 2.

2. The device for monitoring the concentration of atmospheric particulate matter according to claim 1, characterized in that: The supporting assembly 1 comprises a support plate (12) and two supporting wheels (13); the support plate (12) is rotatably mounted on the outer side of the guide column (11); supporting wheels (13) are rotatably mounted on both sides of the support plate (12); the two supporting wheels (13) are in rolling contact with the top side of the base (1); and the main body (2) of the atmospheric integrated sampler is fixedly mounted on the top side of the support plate (12).

3. The device for monitoring the concentration of atmospheric particulate matter according to claim 1, characterized in that: The lifting and lowering adjustment components include a plurality of rotating shafts (32), a plurality of supporting plates (33), a plurality of moving wheels (35) and a plurality of motors (36); a plurality of mounting grooves are provided on the mounting plate (31); the rotating shafts (32) are rotatably mounted in the plurality of mounting grooves; the supporting plates (33) are radially fixedly mounted on the plurality of rotating shafts (32); the moving wheels (35) are rotatably mounted on the side of the plurality of supporting plates (33) away from the mounting plate (31); the motors (36) are fixedly mounted on the plurality of supporting plates (33); the output shafts of the plurality of motors (36) are axially fixedly connected to the corresponding moving wheels (35) respectively, and the plurality of moving wheels (35) are in contact with the outer side of the guide column (11).

4. The device for monitoring the concentration of atmospheric particulate matter according to claim 3, characterized in that: The lifting and lowering adjustment assembly further comprises a plurality of torsion springs (34). A circular groove is formed on each of the plurality of support plates (33) with the rotating shaft (32) as the center. A torsion spring (34) is fixedly installed in the circular groove. The torsion spring (34) is movably sleeved on the outer side of the rotating shaft (32) and fixedly connected to the inner wall of the installation groove.

5. The device for monitoring the concentration of atmospheric particulate matter according to claim 1, characterized in that: The sampling assembly comprises an annular box (5), two L-shaped tubes (51), a delivery tube (52) and a hose (53); the outer side of the guide column (11) is provided with an annular box (5) which is movably sleeved; the annular box (5) is located above the mounting plate (31); two symmetrically arranged L-shaped tubes (51) are fixedly mounted on the top of the annular box (5); a delivery tube (52) is fixedly mounted on the annular box (5); the delivery tube (52) and the main body (2) of the atmospheric integrated sampler are connected to the same hose (53); and a solenoid valve (513) is fixedly mounted on the L-shaped tube (51).

6. The device for monitoring the concentration of atmospheric particulate matter according to claim 5, characterized in that: A conical bucket (511) is fixedly installed at one end of the L-shaped tube (51) away from the annular box (5), and a mesh plate (512) arranged in a spherical shape is fixedly installed in the conical bucket (511).

7. The device for monitoring the concentration of atmospheric particulate matter according to claim 5, characterized in that: The second support assembly comprises a support ring (4), two fixed rods (41) and a support block (521); the support ring (4) is rotatably mounted on the outer side of the sliding sleeve (3); the two fixed rods (41) are fixedly mounted on the top side of the support ring (4); the two L-shaped tubes (51) are respectively fixedly connected to the corresponding fixed rods (41); the support block (521) is fixedly mounted on the support ring (4); and the support block (521) is fixedly connected to the conveying tube (52).

8. The device for monitoring the concentration of atmospheric particulate matter according to claim 7, characterized in that: A plurality of guide wheels (301) are radially rotatably mounted on the outer side of the sliding sleeve (3), annular grooves are provided on the top and bottom sides of the support ring (4), and the plurality of guide wheels (301) are respectively rollingly mounted in the corresponding annular grooves.

9. The device for monitoring the concentration of atmospheric particulate matter according to claim 7, characterized in that: The steering adjustment assembly comprises a guide plate (6) and two connecting rods (61), the connecting rods (61) are radially fixedly mounted on the two fixing rods (41), and the same guide plate (6) is fixedly mounted on the two connecting rods (61).

10. A device and method for monitoring atmospheric particulate matter concentration according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: Turn on the power supply, connect the hose (53) to the main body (2) of the atmospheric integrated sampler and the delivery pipe (52), start the motor (36) and control the moving wheel (35) to move upward along the guide column (11) to a desired height through the motor (36); S2: After reaching the required sampling height, the guide plate (6) can be parallel to the direction of the wind under the action of wind force, and the support ring (4) is controlled to rotate through the connecting rod (61) and the fixing rod (41), so that the two conical buckets (511) face the direction of the wind and the direction away from the wind respectively, and then the atmospheric comprehensive sampler body (2) is started and the atmospheric sampling operation at the height position is performed. When it is necessary to face the direction of the wind for sampling, the solenoid valve (513) on the other L-shaped tube (51) can be closed to achieve the same effect; S3: After one sampling is completed, the motor (36) controls the moving wheel (35) to continue moving along the guide column (11) to another position where sampling is required and sampling is performed again according to the above steps.

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