CN112240859A - Online atmospheric dust particle size measurement system - Google Patents
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- CN112240859A CN112240859A CN202011095697.7A CN202011095697A CN112240859A CN 112240859 A CN112240859 A CN 112240859A CN 202011095697 A CN202011095697 A CN 202011095697A CN 112240859 A CN112240859 A CN 112240859A
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- 239000000428 dust Substances 0.000 title claims abstract description 114
- 239000002245 particle Substances 0.000 title claims abstract description 111
- 238000005259 measurement Methods 0.000 title claims abstract description 57
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 84
- 238000004140 cleaning Methods 0.000 claims description 32
- 238000004064 recycling Methods 0.000 claims description 11
- 238000003860 storage Methods 0.000 claims description 8
- 230000007613 environmental effect Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 10
- 238000011084 recovery Methods 0.000 description 11
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- 238000012986 modification Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/02—Investigating particle size or size distribution
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
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Abstract
The application relates to an online atmospheric dust particle size measurement system, and belongs to the technical field of air measurement devices. The online atmospheric dust particle size measuring system comprises a lifter, a collector, a distance meter, a particle size meter, a display and a control memory. The collector is arranged at the execution end of the elevator; the lifter is used for driving the collector to lift; the distance measuring instrument is used for measuring the distance between the collector and the ground; the particle size analyzer is used for detecting the particle size of the atmospheric dust collected by the collector; the display is used for displaying the atmospheric environment parameters; the control memory is electrically connected with the lifter, the distance meter, the particle size meter and the display, the control memory is used for controlling the lifter to lift according to the distance between the collector and the ground, which is measured by the distance meter, and the control memory is used for controlling the display to display particle size data in real time according to the particle size of the atmospheric dust, which is detected by the particle size meter and collected by the collector. The online atmospheric dust particle size measurement system can realize the collection and particle size detection of atmospheric dust samples with different heights, and the measurement range is wide and accurate.
Description
Technical Field
The application relates to the technical field of air measurement devices, in particular to an online atmospheric dust particle size measurement system.
Background
With the great development of the transportation industry and the manufacturing industry, the atmospheric dust pollution is more and more serious, and as the atmospheric dust pollution is closely related to the respiratory health of human beings, particularly the haze weather influencing life in winter is further aggravated in recent years, the atmospheric dust characteristics become research hotspots again, wherein the atmospheric dust particle size dynamics is the starting point of a plurality of researches. However, in the conventional research, the particle size distribution of the dust is measured by only using a dust collector to attach atmospheric dust to the quartz film and then washing the dust material out of the quartz film. The method is time-consuming and labor-consuming, and has the problems of multiple interference factors and inaccurate results.
Disclosure of Invention
An object of this application is to provide an online atmospheric dust particle size measurement system, can realize the collection and the particle size detection of the atmospheric dust sample of co-altitude not, measuring range is wide and measuring result is accurate.
The application is realized as follows:
the application provides an online atmospheric dust particle size measurement system, includes:
an elevator;
the collector is arranged at an execution end of the elevator, the elevator is used for driving the collector to lift, and the collector is used for collecting atmospheric dust;
the distance measuring instrument is used for measuring the distance between the collector and the ground;
the particle size instrument is used for detecting the particle size of the atmospheric dust collected by the collector;
a display for displaying atmospheric environmental parameters;
and the control memory is electrically connected with the lifter, the distance meter, the particle size meter and the display, is used for controlling the lifter to lift according to the distance between the collector and the ground, which is measured by the distance meter, and is used for controlling the display to display particle size data in real time according to the particle size of the atmospheric dust collected by the collector, which is detected by the particle size meter.
The online atmospheric dust particle size measurement system realizes the adjustment of different heights of the collector through the lifter so as to collect atmospheric samples with different heights; measuring the distance between the collector and the ground through a distance meter so as to conveniently master the height of the collector; detecting the particle size of the atmospheric dust collected by the collector through a particle sizer so as to realize dynamic measurement and analysis of the particle size of the atmospheric dust; displaying parameters of the atmospheric environment through a display, for example, displaying particle size parameters of atmospheric dust; the control of each electrical element and the storage of data collected or measured by the measuring elements are realized by controlling the memory, and the display is controlled to display the data in real time. This online atmospheric dust particle size measurement system can realize the collection and the particle size detection of the atmospheric dust sample of co-altitude not, and atmospheric dust particle size detection is convenient, and measuring range is wide and measuring result is accurate.
In some embodiments of this application, the collector includes the collection section and retrieves the section, collects the section and retrieves the section and is connected and constitute L style of calligraphy structure, collects the section and is the horizontal direction setting, retrieves the section and is the vertical direction setting, collects the section the one end of keeping away from the section of retrieving and be the collection mouth of loudspeaker form, retrieves the section the one end of keeping away from the collection section be for retrieving the mouth, retrieves the mouth and is connected with the dust bag, the particle size apparatus sets up in the section of collecting.
The collector with the L-shaped structure realizes the particle size measurement of the atmospheric dust by means of the flow characteristic of the atmosphere, and realizes the particle size measurement of an atmospheric dust sample through the collection section, so that the measurement is convenient; the collection of the atmospheric dust sample is realized through the recovery section, and the environment is protected.
In some embodiments of the present application, the online atmospheric dust particle size measurement system further comprises a cleaning assembly for cleaning the collector.
The setting of washing subassembly can wash the collector after measuring the particle diameter of atmosphere dust to measure next time and use, be convenient for recycle.
In some embodiments of this application, wash the subassembly and include the water tank, air compressor, the intake pipe, the outlet pipe, inlet tube and cleaning head, air compressor passes through the intake pipe with the water tank and links to each other, the water tank passes through the outlet pipe with the collector and links to each other, the cleaning head is located the one end of being connected with the collector of outlet pipe and is located the collector, the water tank passes through the inlet tube with outside water supply and links to each other, air compressor is connected with the control memory electricity, the control memory is used for controlling air compressor to produce compressed air, and wash the collector through the water of compressed air drive water tank via.
The air communication between the air compressor and the water tank is realized through the air inlet pipe, so that compressed air generated by the air compressor enters the water tank and acts on water in the water tank; the collector is connected with the water tank through the water outlet pipe, so that water in the water tank is transmitted to the collector, and the collector is cleaned through the cleaning head; and sending a control signal to the air compressor by controlling the memory so that the air compressor is started to generate compressed air according to the requirement.
In some embodiments of the present application, the outlet tube is a flexible tube, and the outlet tube is stacked or unfolded following the elevation of the collector.
The flexible pipe is arranged, so that the water outlet pipe can conveniently lift along with the lifting of the collector, the follow-up performance is good, and interference can not occur.
In some embodiments of this application, the lift includes the base, driving motor, lead screw and guide arm, and driving motor installs in the base, and lead screw perpendicular to base setting and with base normal running fit, the one end of lead screw can be connected with driving motor's output with the transmission, guide arm and lead screw parallel arrangement, the collector is connected with the slider, the slider cover locate the lead screw and with lead screw thread fit, slider and guide arm sliding fit, driving motor is used for driving the lead screw and rotates to drive the slider along the lead screw removal.
The lead screw is matched with the guide rod, so that the collector can be conveniently and stably lifted.
In some embodiments of the present application, the elevator further includes a first baffle and a second baffle, the first baffle and the second baffle are disposed at an interval along a length direction of the guide bar, the first baffle and the second baffle are fixed to the guide bar, and the slider is confined between the first baffle and the second baffle.
The lifting position of the sliding block can be limited by the arrangement of the first baffle and the second baffle, and the sliding block is prevented from being separated from the lead screw.
In some embodiments of the present application, the online atmospheric dust particle size measurement system further includes a hygrothermograph electrically connected to the control memory, the hygrothermograph is configured to detect the temperature and humidity of the atmosphere, and the control memory is configured to control the display to display the temperature and humidity data of the atmosphere in real time according to the temperature and humidity of the atmosphere detected by the hygrothermograph.
The setting of warm and humid appearance to in detect atmospheric temperature and humidity, the variety that can realize atmospheric environment and detect.
In some embodiments of the present application, the online atmospheric dust particle size measurement system includes a plurality of collectors located at the same height, and the plurality of collectors are installed at the executing end of the elevator at different angles.
A plurality of collectors are installed at different angles, can realize the atmospheric dust particle size detection of the different positions of same height, and measuring range is wide, and measurement accuracy is high.
In some embodiments of the present application, the online atmospheric dust particle size measurement system includes a plurality of collectors mounted at different heights at an execution end of the elevator.
A plurality of collectors are different height settings, can realize that same time quantum detects the atmosphere dust of different altitude positions, has improved the variety of sample collection.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a schematic diagram of an online atmospheric dust particle size measurement system provided in an embodiment of the present application;
FIG. 2 is a schematic structural diagram of an elevator of an online atmospheric dust particle size measurement system according to an embodiment of the present disclosure;
fig. 3 is a top view of a collector of an online atmospheric dust particle size measurement system according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a collector of an online atmospheric dust particle size measurement system according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a cleaning assembly of an online atmospheric dust particle size measurement system according to an embodiment of the present application.
Icon: 100-an online atmospheric dust particle size measurement system; 10-a lifter; 11-a base; 111-seat plate; 112-a leg; 113-an escape part; 12-a drive motor; 13-a lead screw; 14-a guide rod; 15-a first baffle; 16-a second baffle; 20-a collector; 21-a slide block; 211-a threaded hole; 212-a pilot hole; 22-a collection section; 221-a collection port; 23-a recovery section; 231-a recovery port; 232-annular groove; 24-dust collecting bag; 30-a range finder; 40-particle size analyzer; 50-a display; 60-control memory; 70-cleaning the assembly; 71-a water tank; 72-an air compressor; 73-an intake pipe; 74-a water outlet pipe; 75-a water inlet pipe; 76-a one-way valve; 78-a fan; 81-hygrothermograph; 83-cable.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the application usually place when using, and are only used for convenience in describing the present application and simplifying the description, but do not indicate or imply that the devices or elements that are referred to must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
An online atmospheric dust particle size measurement system according to an embodiment of an aspect of the present application is described below with reference to the figures.
As shown in fig. 1 to 5, an online atmospheric dust particle size measurement system 100 according to an embodiment of the present application includes: elevator 10, harvester 20, rangefinder 30, sizer 40, display 50, and control memory 60.
Specifically, the elevator 10 is installed on the ground, and the actuating end of the elevator 10 can drive the components connected thereto to move up and down. Collector 20 is installed in the execution end of lift 10, and lift 10 can drive collector 20 and go up and down, and collector 20 can gather the atmosphere dust sample. The range finder 30 is capable of measuring the distance of the harvester 20 from the ground in order to determine the position of the harvester 20. The particle size meter 40 can detect the particle size of the atmospheric dust collected by the collector 20. The display 50 is capable of displaying atmospheric environmental parameters including, but not limited to, particle size parameters of atmospheric dust. Control memory 60 is electrically connected to elevator 10, rangefinder 30, sizer 40, and display 50. The control memory 60 can control the elevation of the elevator 10 according to the distance of the harvester 20 from the ground measured by the range finder 30 so that the harvester 20 reaches a designated height position. The control memory 60 can control the display 50 to display the particle size data in real time according to the particle size of the atmospheric dust collected by the collector 20 detected by the particle size analyzer 40, so as to realize online and dynamic measurement of the particle size of the atmospheric dust. The control memory 60 stores data such as height parameters to be detected so that the control memory 60 adjusts the height of the collector 20 according to the measurement result of the distance meter 30.
The online atmospheric dust particle size measurement system 100 realizes the adjustment of different heights of the collector 20 through the lifter 10, so as to collect atmospheric samples with different heights; the distance between the collector 20 and the ground is measured by the distance measuring instrument 30 so as to conveniently grasp the height of the collector 20; the particle size of the atmospheric dust collected by the collector 20 is detected by the particle size analyzer 40, the particle size of the atmospheric dust is directly measured, the measurement result is accurate, and dynamic measurement is realized; displaying parameters of the atmospheric environment, for example, particle size parameters of atmospheric dust, through the display 50; the control of each electrical element and the storage of data collected or measured by the measuring elements are realized by controlling the memory 60, and the display 50 is controlled to display the data in real time. This online atmospheric dust particle size measurement system 100 can realize the collection and the particle size detection of the atmospheric dust sample of co-altitude not, and atmospheric dust particle size detection is convenient, and measuring range is wide and measuring result is accurate.
In some embodiments of the present application, as shown in fig. 1 and 2, the elevator 10 includes a base 11, a driving motor 12, a lead screw 13, and a guide bar 14. The base 11 is used for being arranged on the ground of a point to be detected and is horizontally arranged, so that the collector 20 can collect an atmospheric sample. The driving motor 12 is mounted on the base 11 to facilitate the mounting and positioning of the lead screw 13. Lead screw 13 is perpendicular to base 11 setting to guarantee that lead screw 13 is vertical state, lead screw 13 and base 11 normal running fit, but one end and the output of driving motor 12 of lead screw 13 are connected with the transmission. The guide rod 14 and the lead screw 13 are arranged in parallel, as shown in fig. 3, the collector 20 is connected with a slide block 21, the slide block 21 is sleeved on the lead screw 13 and is in threaded fit with the lead screw 13, and the slide block 21 is in sliding fit with the guide rod 14. The driving motor 12 can drive the lead screw 13 to rotate so as to drive the sliding block 21 to move along the lead screw 13, and when the sliding block 21 moves along the lead screw 13, the sliding block 21 moves relative to the guide rod 14, so that the height adjustment of the collector 20 is realized.
In other embodiments of the present application, the lift 10 may also take other forms of drive, such as a telescopic rod type structure, similar to a hydraulic cylinder, an air cylinder, or an electric cylinder, etc.
Alternatively, as shown in fig. 2, two guide rods 14 are provided, and the lead screw 13 is located between the two guide rods 14, so that the slider 21 can move stably along the lead screw 13.
Further, as shown in fig. 1 and 2, the lifter 10 further includes a first barrier 15 and a second barrier 16, the first barrier 15 and the second barrier 16 are disposed at intervals along the length direction of the guide rod 14, the first barrier 15 and the second barrier 16 are fixed to the guide rod 14, and the slider 21 is confined between the first barrier 15 and the second barrier 16. As shown, the first baffle 15 is close to the base 11 relative to the second baffle 16, and when the slide block 21 moves along the screw 13 to be in the lowest position with the first baffle 15, the collector 20 is in the lowest position; when the slide 21 is moved along the lead screw 13 to the second stop 16, the harvester 20 is in the uppermost position. The first baffle 15 and the second baffle 16 are arranged to limit the lifting position of the slider 21 (i.e., the lifting height range of the harvester 20) and prevent the slider 21 from being disengaged from the screw 13.
Optionally, the slider 21 is configured to be sleeved on the guide rod 14, as shown in fig. 3, the slider 21 is provided with a threaded hole 211 corresponding to the lead screw 13 and a guide hole 212 corresponding to the guide rod 14. When the harvester 20 is assembled with the elevator 10, the slider 21 is sleeved on the lead screw 13 and the guide rod 14.
In order to protect the driving motor 12, as shown in fig. 1 and 2, the base 11 includes a seat plate 111 and a leg 112, the leg 112 is connected to the bottom of the seat plate 111, the leg 112 and the seat plate 111 enclose a space-avoiding portion 113, the driving motor 12 is installed on the seat plate 111 and located in the space-avoiding portion 113, and a gap is formed between the driving motor 12 and the ground; the screw 13 is rotatably connected to the seat plate 111 and is in sealing engagement with the seat plate 111. Because the driving motor 12 is located in the space-avoiding portion 113, objects such as dust and water on the upper surface (the surface away from the ground) of the seat plate 111 cannot enter the driving motor 12, and the influence on the normal operation of the driving motor 12 is avoided.
In some embodiments of the present application, the online atmospheric dust particle size measurement system 100 includes a plurality of collectors 20, the plurality of collectors 20 are located at the same height, and the plurality of collectors 20 are installed at the executing end of the elevator 10 at different angles. A plurality of collectors 20 are the angle installation of difference, can realize the atmospheric dust particle diameter detection of the different positions of same height, and measuring range is wide to in average value is got according to the measuring result of the atmospheric dust sample of different positions, make measurement accuracy high.
In some embodiments of the present application, the online atmospheric dust particle size measurement system 100 includes a plurality of collectors 20, and the plurality of collectors 20 are mounted at different heights at the executing end of the elevator 10. A plurality of collectors 20 are different height setting, can realize that same time quantum detects the atmosphere dust of different high positions, has improved the variety of sample collection.
In some embodiments of the present application, as shown in fig. 1 and 4, the collector 20 comprises a collecting section 22 and a recycling section 23, and the collecting section 22 and the recycling section 23 are connected to form an L-shaped structure. The collecting section 22 is arranged in the horizontal direction, and the recovering section 23 is arranged in the vertical direction. One end of the collecting section 22 far away from the recovering section 23 is a flared collecting port 221, and the opening of the collecting port 221 is larger, so that the atmospheric air can flow into the collector 20 conveniently; one end of the recovery section 23, which is far away from the collection section 22, is a recovery port 231, and the recovery port 231 is connected with a dust bag 24 so as to facilitate the collection of atmospheric dust. The particle size analyzer 40 is arranged in the collecting section 22, and after the atmospheric dust enters the collecting section 22 through the collecting port 221, the particle size analyzer 40 can detect the particle size of the atmospheric dust in the collecting section 22, so that the dynamic measurement of the particle size of the atmospheric dust is realized. The collector 20 with the L-shaped structure realizes the particle size measurement of the atmospheric dust by means of the flow characteristic of the atmosphere, and realizes the particle size measurement of an atmospheric dust sample through the collecting section 22, so that the measurement is convenient and accurate; the collection of the atmospheric dust sample is realized through the recovery section 23, and the environment is protected.
It should be noted that the connection between the collecting section 22 and the recycling section 23 may be a fixed connection, such as welding; the connecting rod can also be detachably connected, such as clamping and sleeving; and the plastic can also be integrally formed, such as casting molding, injection molding and the like, so that the plastic is convenient to process and manufacture. Alternatively, the collecting section 22 and the recycling section 23 are integrally formed.
Alternatively, the dust bag 24 and the recovery opening 231 are detachably connected by an elastic cord (not shown in the drawings). When the dust bag 24 collects full atmospheric dust or a sample is required for preservation after completing a particle size measurement of a certain height of atmospheric dust, the bungee cord can be untied to cancel the dust bag 24.
Optionally, as shown in fig. 4, an annular groove 232 is opened on the outer circumferential surface of the recovery section 23 near the recovery opening 231, and the bag opening of the dust bag 24 is bound to the annular groove 232 by an elastic rope.
In some embodiments of the present application, as shown in fig. 1 and 5, the online atmospheric dust particle size measurement system 100 further comprises a cleaning assembly 70, the cleaning assembly 70 being capable of cleaning the harvester 20. The cleaning assembly 70 can clean the collector 20 after the particle size of the atmospheric dust is measured, so that the collector can be used for the next measurement and is convenient to recycle.
As shown in fig. 5, the cleaning assembly 70 includes a water tank 71, an air compressor 72, an air inlet pipe 73, a water outlet pipe 74, a water inlet pipe 75 and a cleaning head (not shown). The air compressor 72 is connected to the water tank 71 through an intake pipe 73, and compressed air generated by the air compressor 72 can be taken into the water tank 71 through the intake pipe 73. The water tank 71 is connected to the collector 20 by a water outlet pipe 74, and water in the water tank 71 can enter the collector 20 via the water outlet pipe 74. A cleaning head is located at the end of outlet tube 74 that is connected to the collector 20 and is located within the collector 20 so that water delivered by the outlet tube 74 cleans the interior of the collector 20 via the cleaning head. The water tank 71 is connected to an external water supply through a water inlet pipe 75 so that the external water supply supplies water to the water tank 71. The air compressor 72 is electrically connected to the control storage 60, and the control storage 60 is used for controlling the air compressor 72 to generate compressed air, and driving the water in the water tank 71 to be sprayed out of the cleaning collector 20 through the cleaning head by the compressed air. A control signal is sent to the air compressor 72 by the control memory 60 to cause the air compressor 72 to start producing compressed air on demand.
As shown in fig. 5, one end of the water outlet pipe 74 located in the water tank 71 extends into the water in the water tank 71, and the end of the water outlet pipe 74 is located below the water surface, and in order to facilitate the water transportation, the end of the water outlet pipe 74 is located at the bottom of the water tank 71. Also, a one-way valve 76 is connected between the outlet tube 74 and the cleaning head inside the receptacle 20 to restrict water in the outlet tube 74 from entering the receptacle 20 only. The one-way valve 76 is normally closed and opens when water in the outlet pipe 74 flows therethrough.
In order to ensure that the collector 20 is cleaned, the water outlet direction of the cleaning head faces the collecting section 22 and the recovery section 23 respectively, and after being sprayed out by the cleaning head, the water in the water outlet pipe 74 can act on the inner wall of the collector 20 in all directions.
The end of the air inlet pipe 73 is located at the top inside the water tank 71 so that the compressed air presses the water inside the water tank 71 into the water outlet pipe 74 to be discharged.
In some embodiments of the present application, outlet tube 74 is a flexible tube, and outlet tube 74 is stacked or unfolded following the raising and lowering of harvester 20. The flexible pipe is arranged, so that the water outlet pipe 74 can conveniently lift along with the lifting of the collector 20, the follow-up performance is good, and interference can not occur.
The working principle of the cleaning assembly 70 is as follows: when the control memory 60 controls the air compressor 72 to work, compressed air (which can be understood as high-pressure air with a pressure greater than the atmospheric pressure) generated by the air compressor 72 is delivered into the water tank 71 through the air inlet pipe 73, the compressed air is gathered in the water tank 71 and presses water in the water tank 71, and the water flows to the collector 20 through the water outlet pipe 74; the water in the outlet pipe 74 is ejected through the cleaning head and acts on the inner wall of the collector 20, thereby cleaning the collector 20.
In some embodiments of the present application, as shown in fig. 1, the online atmospheric dust particle size measuring system 100 further includes a fan 78, the fan 78 is installed on an outer wall of the collector 20, an air outlet of the fan 78 extends into the collector 20, and the fan 78 is configured to blow air to the collector 20 to dry the collector 20 after the collector 20 is cleaned.
In some embodiments of the present application, as shown in fig. 1, the online atmospheric dust particle size measurement system 100 further includes a hygrothermograph 81, the hygrothermograph 81 is electrically connected to the control memory 60, the hygrothermograph 81 is configured to detect the temperature and humidity of the atmosphere, and the control memory 60 is configured to control the display 50 to display the temperature and humidity data of the atmosphere in real time according to the temperature and humidity of the atmosphere detected by the hygrothermograph 81. The temperature and humidity instrument 81 is arranged so as to detect the temperature and the humidity of the atmosphere, and the diversity of atmospheric environment detection can be realized.
As shown in fig. 1, the hygrothermograph 81 is disposed on the base 11, and the hygrothermograph 81 is supported and positioned by the base 11.
In some embodiments of the present application, the control memory 60 and the electrical components may be connected via cables, or may be connected via wireless communication (e.g., bluetooth, WiFi, etc.). Alternatively, as shown in fig. 1, the control memory 60 of the present application is a proximity monitor, which is connected to the controlled electrical component through a cable 83.
It should be noted that the power required for controlling the memory 60 and the electrical components may be provided by an external power supply or by a battery, which is not described in detail in this application.
The online atmospheric dust particle size measurement system 100 according to the embodiment of the present application has the following working principle:
the control memory 60 and the display 50 are activated and the operating state is entered. The distance measuring instrument 30 works to give the height between the collector 20 and the ground, the driving motor 12 of the elevator 10 is controlled by the control memory 60 to drive the screw 13 to rotate, and the collector 20 moves to the required height along the screw 13. When the height data of the collector 20 and the ground transmitted to the control memory 60 by the distance meter 30 reaches the required height parameter, the control memory 60 controls the driving motor 12 of the elevator 10 to stop working. When the dust passes through the lower part of the particle size analyzer 40, the particle size analyzer 40 monitors the particle size data of the atmospheric dust and transmits the data to the control memory 60, meanwhile, the temperature and humidity instrument 81 transmits the atmospheric temperature and humidity data to the control memory 60, and the control memory 60 controls the display 50 to display the atmospheric environment parameters (the particle size data of the atmospheric dust, the atmospheric temperature and humidity data) in real time. The atmospheric dust is finally accumulated in the dust collection bag 24 along with the flow of the atmospheric air, when the dust collection bag 24 is filled or a sample is required to be kept after a certain height is measured, the storage 60 is controlled to close the particle size analyzer 40 and the temperature and humidity meter 81, and the dust collection bag 24 is manually taken down. The control memory 60 controls the air compressor 72 of the cleaning assembly 70 to work, compressed air enters the water tank 71 through the air inlet pipe 73, water in the water tank 71 passes through the water outlet pipe 74 under the action of the compressed air and opens the one-way valve 76, the water enters the collector 20 through the cleaning head, water sprayed from the water outlet pipe 74 acts on the inner wall of the collector 20, after the water works for a period of time, the air compressor 72 stops working, and the one-way valve 76 is closed. The control memory 60 controls the fan 78 to start operation and stop operation after a period of operation to dry the harvester 20. A new dust bag 24 is manually installed, the control memory 60 controls the operation of the elevator 10 to change the height of the collector 20 from the ground, and when the value (the distance between the collector 20 and the ground) transmitted to the control memory 60 by the distance meter 30 reaches a desired height, the elevator 10 stops operating. The control memory 60 activates the particle sizer 40 and hygrothermograph 81 for the next monitoring.
It should be noted that during operation, the particle sizer 40 can also be used alone, only monitoring the particle size of the atmospheric dust.
The online atmospheric dust particle size measurement system 100 can adjust the height of the collector 20 according to requirements to collect samples from different heights of atmosphere; the harvester 20 can also be cleaned by the cleaning assembly 70 to ensure the accuracy of each measurement; the temperature and humidity of the atmosphere can be detected through the hygrothermograph 81, so that the detection diversity is improved; through collector 20 and the cooperation of particle size appearance 40, realize the dynamic measurement of atmospheric dust particle diameter, satisfy the measurement demand.
It should be noted that the features of the embodiments in the present application may be combined with each other without conflict.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. An online atmospheric dust particle size measurement system, comprising:
an elevator;
the collector is arranged at the execution end of the lifter, the lifter is used for driving the collector to lift, and the collector is used for collecting atmospheric dust;
the distance measuring instrument is used for measuring the distance between the collector and the ground;
the particle size instrument is used for detecting the particle size of the atmospheric dust collected by the collector;
a display for displaying atmospheric environmental parameters;
the control storage device is electrically connected with the lifter, the distance meter, the particle size analyzer and the display, the control storage device is used for controlling the lifter to lift according to the distance between the collector and the ground, which is measured by the distance meter, and the control storage device is used for controlling the display to display particle size data in real time according to the particle size of the atmospheric dust collected by the collector, which is detected by the particle size analyzer.
2. The online atmospheric dust particle size measuring system of claim 1, wherein the collector comprises a collecting section and a recycling section, the collecting section and the recycling section are connected to form an L-shaped structure, the collecting section is horizontally arranged, the recycling section is vertically arranged, one end of the collecting section, which is far away from the recycling section, is a horn-shaped collecting opening, one end of the recycling section, which is far away from the collecting section, is a recycling opening, the recycling opening is connected with a dust bag, and the particle analyzer is arranged in the collecting section.
3. The online atmospheric dust particle size measurement system of claim 1, further comprising a cleaning assembly for cleaning the collector.
4. The online atmospheric dust particle size measuring system of claim 3, wherein the cleaning assembly comprises a water tank, an air compressor, an air inlet pipe, an air outlet pipe, an water inlet pipe and a cleaning head, the air compressor is connected with the water tank through the air inlet pipe, the water tank is connected with the collector through the water outlet pipe, the cleaning head is located at one end of the water outlet pipe connected with the collector and located in the collector, the water tank is connected with external water supply through the water inlet pipe, the air compressor is electrically connected with the control memory, the control memory is used for controlling the air compressor to generate compressed air, and the water in the water tank is driven by the compressed air to be sprayed out through the cleaning head to clean the collector.
5. The online atmospheric dust particle size measurement system of claim 4, wherein the outlet pipe is a flexible pipe, and the outlet pipe is stacked or unfolded following the lifting of the collector.
6. The online atmospheric dust particle size measuring system according to claim 1, wherein the elevator comprises a base, a driving motor, a lead screw, and a guide rod, the driving motor is installed on the base, the lead screw is perpendicular to the base and is in running fit with the base, one end of the lead screw is in driving connection with an output end of the driving motor, the guide rod is in parallel arrangement with the lead screw, the collector is connected with a slider, the slider is sleeved on the lead screw and is in running fit with the lead screw, the slider is in sliding fit with the guide rod, and the driving motor is used for driving the lead screw to rotate so as to drive the slider to move along the lead screw.
7. The online atmospheric dust particle size measurement system of claim 6, wherein the elevator further comprises a first baffle and a second baffle, the first baffle and the second baffle are spaced apart along a length direction of the guide bar, the first baffle and the second baffle are fixed to the guide bar, and the slider is confined between the first baffle and the second baffle.
8. The online atmospheric dust particle size measuring system of claim 1, further comprising a hygrothermograph electrically connected to the control memory, wherein the hygrothermograph is configured to detect the temperature and humidity of the atmosphere, and the control memory is configured to control the display to display the temperature and humidity data of the atmosphere in real time according to the temperature and humidity of the atmosphere detected by the hygrothermograph.
9. The online atmospheric dust particle size measuring system of claim 1, wherein the online atmospheric dust particle size measuring system comprises a plurality of collectors, the plurality of collectors are located at the same height, and the plurality of collectors are installed at an execution end of the elevator at different angles.
10. The online atmospheric dust particle size measurement system of claim 1, wherein the online atmospheric dust particle size measurement system comprises a plurality of collectors, and the plurality of collectors are installed at an execution end of the elevator at different heights.
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