CN115014880A - Indoor air sampler and sampling method thereof - Google Patents
Indoor air sampler and sampling method thereof Download PDFInfo
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- CN115014880A CN115014880A CN202210631865.2A CN202210631865A CN115014880A CN 115014880 A CN115014880 A CN 115014880A CN 202210631865 A CN202210631865 A CN 202210631865A CN 115014880 A CN115014880 A CN 115014880A
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- 238000005070 sampling Methods 0.000 title claims abstract description 167
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000012545 processing Methods 0.000 claims abstract description 48
- 238000001914 filtration Methods 0.000 claims description 51
- 230000005540 biological transmission Effects 0.000 claims description 50
- 238000000605 extraction Methods 0.000 claims description 50
- 238000003756 stirring Methods 0.000 claims description 38
- 238000005086 pumping Methods 0.000 claims description 36
- 239000000428 dust Substances 0.000 claims description 25
- 238000005192 partition Methods 0.000 claims description 17
- 239000002245 particle Substances 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 3
- 239000003570 air Substances 0.000 description 160
- 239000008187 granular material Substances 0.000 description 13
- 239000000706 filtrate Substances 0.000 description 10
- 238000004868 gas analysis Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 208000032843 Hemorrhage Diseases 0.000 description 3
- 230000002146 bilateral effect Effects 0.000 description 3
- 230000000740 bleeding effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 208000007407 African swine fever Diseases 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 208000035473 Communicable disease Diseases 0.000 description 1
- 201000011001 Ebola Hemorrhagic Fever Diseases 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 201000003176 Severe Acute Respiratory Syndrome Diseases 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000005802 health problem Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 230000009182 swimming Effects 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
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
- G01N1/2205—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling with filters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2273—Atmospheric sampling
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/26—Devices for withdrawing samples in the gaseous state with provision for intake from several spaces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses an indoor air sampler and a sampling method thereof, which relate to the technical field of air sampling and comprise a mobile base, wherein a control device and a mobile assembly are arranged on the side surface of the mobile base; the surface of the movable base is also provided with an adjusting mechanism; the surface of the adjusting mechanism is provided with a processing mechanism. Through being provided with the sampling subassembly, when the gaseous sampling of different regions is stored respectively to needs, staff's accessible controlling means controls the electric telescopic handle between the division board in proper order and starts, and then has formed the gas storage district with the gaseous storage of sampling of different sampling regions between the inner wall of two piece adjacent division boards and sampling frame for this device can sample the storage to the gas of different sampling regions, has greatly improved staff's sampling efficiency.
Description
Technical Field
The invention relates to the technical field of air sampling, in particular to an indoor air sampler and a sampling method thereof.
Background
In recent years, the problem of environmental air pollution in China is aggravated, the health of residents is seriously harmed, and the problem of monitoring and treating the environmental air is not moderate. There are a large number of particulate matter in the ambient air, such as bioaerosol (bacteria, viruses, fungi, etc.) particles and PM2.5 particles, among others. Studies have shown that many health problems are associated with air pollutants, especially with exposure to bioaerosols. The generation, diffusion and transmission of bioaerosols are likely to cause outbreaks of large-scale infectious diseases such as SARS, H1N1, Ebola, African swine fever, etc. The method can efficiently and quickly collect the microbial particles in the air, and is an important link for researching bioaerosol.
Present indoor air sampler all is the fixed point and installs in indoor a certain department, just so can only carry out the fixed point sampling to indoor, and the sample diversity that just leads to the sampling is limited makes the analysis result to indoor gaseous inaccurate, and when present air sampler sampled the air, only can store a kind of sampled gas for the inefficiency of sampling, and present air sampler is not good to the dust granule filter effect in the sampled gas.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an indoor air sampler and a sampling method thereof.
In order to achieve the purpose, the invention provides the following technical scheme: an indoor air sampler comprising:
moving the base;
the side surface of the movable base is provided with a control device, the control device is detachably and fixedly connected with the movable base, the surface of the movable base is provided with a clamping groove, the surface below the movable base is provided with a movable assembly, the movable assembly is electrically connected with the control device, and the movable assembly is used for controlling the air sampler to perform movable sampling;
the adjusting mechanism is arranged in the clamping groove, fixedly connected with the movable base and electrically connected with the control device, and used for controlling the air sampler to sample at different heights and enabling the sampling to be more uniform;
the processing mechanism is arranged on the surface of the adjusting mechanism and is detachably and fixedly connected with the adjusting mechanism, the processing mechanism is electrically connected with the control device, and the processing mechanism is used for sampling and processing air.
As a further scheme of the invention: the movable assembly comprises a connecting piece, an electric telescopic shaft, a connecting seat and a movable pulley, the connecting piece is arranged on the surface of the movable base and is fixedly connected with the movable base, the electric telescopic shaft is rotatably connected with the connecting piece, the electric telescopic shaft is electrically connected with the control device and is rotatably connected with the connecting seat, the movable pulley is arranged on the surface of the connecting seat, and the movable pulley is fixedly connected with the connecting seat.
As a further scheme of the invention: the adjusting mechanism comprises a rotating assembly and a lifting assembly, the rotating assembly is arranged in the clamping groove and fixedly connected with the movable base, the rotating assembly is electrically connected with the control device, the lifting assembly is arranged on the surface of the rotating assembly, and the lifting assembly is fixedly connected with the rotating assembly.
As a further scheme of the invention: rotating assembly includes fixed frame, the bearing, the rotating electrical machines, drive gear, transmission fluted disc and axis of ordinates, fixed frame sets up in the draw-in groove, fixed frame and removal base fixed connection, the axis of ordinates passes through the bearing and installs on fixed frame, the axis of ordinates is located the one end and the transmission fluted disc fixed connection of fixed frame, the other end and the lifting unit fixed connection of axis of ordinates, the rotating electrical machines sets up in the surface of fixed frame, the rotating electrical machines is connected with controlling means electricity, the output and the drive gear fixed connection of rotating electrical machines, drive gear and transmission fluted disc meshing, the diameter of drive gear's diameter ratio transmission fluted disc is little.
As a further scheme of the invention: lifting unit includes bottom plate, hydraulic stretching axle and connecting plate, and the bottom plate is located the one end fixed connection in the fixed frame body outside with the axis of ordinates, and the hydraulic stretching axle sets up in the bottom plate and is close to the surface of processing mechanism one side, hydraulic stretching axle and bottom plate fixed connection, and the hydraulic stretching axle is connected with the controlling means electricity, hydraulic stretching axle and connecting plate fixed connection, the detachable fixed connection of connecting plate and processing mechanism.
As a further scheme of the invention: the processing mechanism comprises an air exhaust assembly, a filtering assembly and a sampling assembly, the air exhaust assembly is detachably and fixedly connected with the connecting plate, the air exhaust assembly is electrically connected with the control device, the filtering assembly is arranged in the air exhaust assembly and electrically connected with the control device, the filtering assembly is communicated with the air exhaust assembly, the sampling assembly is arranged in the air exhaust assembly and electrically connected with the control device, and the sampling assembly is communicated with the filtering assembly.
As a further scheme of the invention: the air exhaust assembly comprises a processing box body, an air exhaust frame, a first air exhaust pipe, a second air exhaust pipe, an air exhaust valve, a first motor, a transmission shaft, a transmission gear, a meshing gear, an air exhaust plate, a fixing plate, a guide rod and a double-sided toothed plate, wherein the processing box body is detachably and fixedly connected with the connecting plate, the air exhaust frame is arranged in the processing box body and is fixedly connected with the processing box body, the air exhaust valve is arranged on each of the first air exhaust pipe and the second air exhaust pipe and is electrically connected with a control device, the air exhaust valve is used for controlling the opening and closing of the first air exhaust pipe and the second air exhaust pipe, the air exhaust frame is communicated with the outside through the first air exhaust pipe and the second air exhaust pipe, the axial directions of the first air exhaust pipe and the second air exhaust pipe are mutually vertical, the fixing plate is arranged in the air exhaust frame and is slidably connected with the guide rod, one end of the guide rod, which is close to the first air exhaust pipe and the second air exhaust pipe, is fixedly connected with the air exhaust plate, one side surface and bilateral pinion rack fixed connection that the exhaust plate is close to the fixed plate, the exhaust plate has formed exhaust area and auxiliary area with the frame inner wall that bleeds, it is airtight with the auxiliary area to bleed, first motor sets up in the surface of frame of bleeding, first motor is connected with the controlling means electricity, the transmission shaft is provided with two, and two transmission shaft symmetries set up, the transmission shaft rotates with the frame of bleeding to be connected, the output fixed connection of arbitrary transmission shaft and first motor, drive gear sets up in the surface of transmission shaft, two drive gear intermeshing, the meshing gear also sets up in the surface of transmission shaft, and two meshing gears set up in bilateral pinion rack's both sides, meshing gear and bilateral pinion rack meshing.
As a further scheme of the invention: the filtering component comprises a filtering frame, an air inlet pipe, an air inlet valve, a second motor, a stirring shaft, stirring blades, an air outlet pipe and an air outlet valve, the filtering frame is arranged in the processing box body and fixedly connected with the processing box body, the filtering frame is communicated with the air exhaust frame through the air inlet pipe, filtering liquid is arranged in the filtering frame and is used for filtering dust particles in sampled gas, the air inlet valve is arranged on the air inlet pipe and is electrically connected with the control device, an air inlet channel is arranged in the wall of the filtering frame, one end of the air inlet channel is communicated with the air inlet pipe, the other end of the air inlet channel is arranged on the lower wall of the filtering frame, a one-way valve is arranged at the communication position of the air inlet channel and the lower wall of the filtering frame, the second motor is arranged on the surface of the filtering frame and is electrically connected with the control device, the output end of the second motor is fixedly connected with the stirring shaft, and the stirring blades are arranged on the surface of the stirring shaft, the size of the stirring blade is increased from one end of the stirring shaft away from the second motor to the other end in sequence, the filter frame is communicated with the sampling assembly through the air outlet pipe, the air outlet valve is arranged on the air outlet pipe, and the air outlet valve is electrically connected with the control device.
As a further scheme of the invention: the sampling assembly comprises a sampling frame, partition plates, an electric telescopic rod, a sampling pipe and a control valve, wherein the sampling frame is arranged in the processing box body, the sampling frame is fixedly connected with the processing box body, the sampling frame is communicated with the air outlet pipe, a plurality of partition plates are arranged in the sampling frame, the electric telescopic rod is arranged between every two adjacent partition plates, the electric telescopic rod is electrically connected with the control device, an air storage area is formed between every two adjacent partition plates and the inner wall of the sampling frame, the sampling frame is communicated with the sampling pipe, the control valve is arranged on the sampling pipe, the control valve is electrically connected with the control device, and the control valve is used for controlling the opening and closing of the sampling pipe.
A sampling method of an indoor air sampler comprises the following steps:
s1, adjusting, wherein the control device starts to move the air exhaust assembly to the sampling area by controlling the adjusting mechanism;
s2, air extraction is carried out, the control device controls the first motor to start, close the air inlet valve and open the air extraction valve, so that the air extraction plate moves downwards to a fixed distance, then the air extraction valve is controlled to be closed, and the volume of the air extraction area is increased to finish air extraction sampling;
s3, filtering, wherein the control device controls the air suction valve to close and opens the air inlet valve and the air outlet valve, then the first motor is enabled to rotate reversely, and further the sampled gas in the air suction area is discharged to the sampling frame, and when the sampled gas passes through the filtering frame, the second motor drives the stirring blades on the stirring shaft to rotate, so that dust particles in the sampled gas are filtered out under the action of centrifugal force;
and S4, sampling, wherein the filtered sampling gas is stored in a sampling area, and a worker can control the control valve to open through the control device to sample the sampling gas in the sampling area.
Compared with the prior art, the invention has the following beneficial effects:
1. through being provided with filtering component, controlling means opens air inlet valve and air outlet valve, the reversal of the first motor of the second control, and then with the interior sample gas row of exhaust area to the sampling frame, when sample gas passes through the filtering frame, the second motor drives the epaxial stirring vane of stirring and rotates, make the dust granule in the sample gas filtered out because of the effect that receives the centrifugal force, make the dust granule in the sample gas filtered, the accuracy that has improved the sampling also provides certain guarantee for subsequent gaseous analysis result's exactness simultaneously.
2. Through being provided with lifting unit, when sampling gas, the rotating electrical machines starts, has driven rather than output fixed connection's drive gear and has rotated, through the meshing of drive gear and driving gear dish, has driven the subassembly of bleeding slowly rotatory with lifting unit fixed connection, and then makes this device more even to gaseous sampling, has improved the accuracy of sampling.
3. Through being provided with the sampling subassembly, when the sampling gas of different regions is stored respectively to needs, staff's accessible controlling means controls the electric telescopic handle start-up between the division board in proper order, and then has formed the gas storage district with the sampling gas storage of different sampling regions between the inner wall of two piece adjacent division boards and sampling frame for this device can sample the storage to the gas of different sampling regions, has greatly improved staff's sampling efficiency.
4. Design is increased in proper order to the other end through the one end of keeping away from the second motor with stirring vane's size from the (mixing) shaft, make when filtering gas again, because the centrifugal force that the dust of different mass sizes received is inconsistent, make the dust granule move about irregularly in the filtrate, make the dust granule mix with once more in the sampling gas, adjust through the size to different degree of depth stirring vane in the filtrate, and then make the centrifugal force that the dust granule received unanimous, and then make moving about of dust granule rule in the filtrate, make the sampling gas can not mix with the dust granule when the vortex that forms from the filtrate middle part after the filtrate filters escapes, and then improved the filtration efficiency to sampling gas, and then accuracy to subsequent gas analysis result provides the guarantee.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of an indoor air sampler;
FIG. 2 is a schematic view of a portion of the adjustment mechanism of the indoor air sampler;
FIG. 3 is a schematic diagram of a portion of an air extraction assembly of the indoor air sampler;
FIG. 4 is a schematic view of a partial enlarged structure at A in the indoor air sampler;
FIG. 5 is a schematic view of a partial enlarged structure at B in the indoor air sampler;
FIG. 6 is a schematic view of a partial enlarged structure at C in the indoor air sampler;
FIG. 7 is a flow chart of a sampling method of an indoor air sampler
1. Moving the base; 2. a control device; 3. a card slot; 4. a moving assembly; 401. a connecting member; 402. an electric telescopic shaft; 403. a connecting seat; 404. a movable pulley; 5. a rotating assembly; 501. a fixing frame; 502. a bearing; 503. a rotating electric machine; 504. a drive gear; 505. a transmission fluted disc; 506. a longitudinal axis; 6. a lifting assembly; 601. a base plate; 602. a hydraulic telescopic shaft; 603. a connecting plate; 7. an air extraction assembly; 701. a treatment box body; 702. an air exhaust frame; 703. a first exhaust tube; 704. a second extraction tube; 705. an air extraction valve; 706. a first motor; 707. a drive shaft; 708. a transmission gear; 709. a meshing gear; 710. an air extraction plate; 711. a fixing plate; 712. a guide bar; 713. a double toothed plate; 714. an air extraction area; 715. an auxiliary region; 8. a filter assembly; 801. a filter frame; 802. an air inlet pipe; 803. an intake valve; 804. a second motor; 805. a stirring shaft; 806. a stirring blade; 807. an air outlet pipe; 808. an air outlet valve; 809. an air intake passage; 810. a one-way valve; 9. a sampling component; 901. sampling frame; 902. a partition plate; 903. an electric telescopic rod; 904. a sampling tube; 905. a control valve; 906. and a gas storage area.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
An embodiment of an indoor air sampler according to the present invention is further described with reference to fig. 1 to 6.
An indoor air sampler comprises a movable base 1, wherein a control device 2 is arranged on the side surface of the movable base 1, the control device 2 is detachably and fixedly connected with the movable base 1, a clamping groove 3 is formed in the surface of the movable base 1, a movable assembly 4 is arranged on the surface below the movable base 1, the movable assembly 4 is electrically connected with the control device 2, and the movable assembly 4 is used for controlling the air sampler to perform movable sampling; the adjusting mechanism is arranged in the clamping groove 3, fixedly connected with the movable base 1 and electrically connected with the control device 2, and used for controlling the air sampler to sample at different heights and enabling the sampling to be more uniform; the processing mechanism is arranged on the surface of the adjusting mechanism and is detachably and fixedly connected with the adjusting mechanism, the processing mechanism is electrically connected with the control device 2, and the processing mechanism is used for sampling and processing air.
Referring to fig. 1, preferably, the moving assembly 4 includes a connecting member 401, an electric telescopic shaft 402, a connecting seat 403 and a moving pulley 404, the connecting member 401 is disposed on a surface of the moving base 1, the connecting member 401 is fixedly connected to the moving base 1, the electric telescopic shaft 402 is rotatably connected to the connecting member 401, the electric telescopic shaft 402 is electrically connected to the control device 2, the electric telescopic shaft 402 is rotatably connected to the connecting seat 403, the moving pulley 404 is disposed on a surface of the connecting seat 403, and the moving pulley 404 is fixedly connected to the connecting seat 403.
Through setting up processing mechanism and adjustment mechanism into detachable fixed connection for this device can fixed mounting carry out the fixed point sampling in indoor, also can drive processing mechanism through removal subassembly 4 and remove the sampling indoor, has increased the sampling pluralism of this device.
Referring to fig. 1 and 2, preferably, the adjusting mechanism includes a rotating component 5 and a lifting component 6, the rotating component 5 is disposed in the clamping groove 3, the rotating component 5 is fixedly connected with the mobile base 1, the rotating component 5 is electrically connected with the control device 2, the lifting component 6 is disposed on the surface of the rotating component 5, and the lifting component 6 is fixedly connected with the rotating component 5.
Referring to fig. 1 and 2, preferably, the rotating assembly 5 includes a fixing frame 501, a bearing 502, a rotating motor 503, a driving gear 504, a transmission toothed disc 505, and a longitudinal shaft 506, the fixing frame 501 is disposed in the clamping slot 3, the fixing frame 501 is fixedly connected to the mobile base 1, the longitudinal shaft 506 is mounted on the fixing frame 501 through the bearing 502, one end of the longitudinal shaft 506 located in the frame of the fixing frame 501 is fixedly connected to the transmission toothed disc 505, the other end of the longitudinal shaft 506 is fixedly connected to the lifting assembly 6, the rotating motor 503 is disposed on the surface of the fixing frame 501, the rotating motor 503 is electrically connected to the control device 2, the output end of the rotating motor 503 is fixedly connected to the driving gear 504, the driving gear 504 is engaged with the transmission toothed disc 505, and the diameter of the driving gear 504 is smaller than that of the transmission toothed disc 505.
Referring to fig. 1 and 2, preferably, the lifting assembly 6 includes a bottom plate 601, a hydraulic telescopic shaft 602 and a connecting plate 603, the bottom plate 601 is fixedly connected to one end of the vertical shaft 506 located outside the frame body of the fixing frame 501, the hydraulic telescopic shaft 602 is disposed on the surface of the bottom plate 601 near one side of the processing mechanism, the hydraulic telescopic shaft 602 is fixedly connected to the bottom plate 601, the hydraulic telescopic shaft 602 is electrically connected to the control device 2, the hydraulic telescopic shaft 602 is fixedly connected to the connecting plate 603, and the connecting plate 603 is detachably and fixedly connected to the processing mechanism.
Referring to fig. 1, 3, 4, 5 and 6, preferably, the processing mechanism includes an air extracting assembly 7, a filtering assembly 8 and a sampling assembly 9, the air extracting assembly 7 is detachably and fixedly connected with the connecting plate 603, the air extracting assembly 7 is electrically connected with the control device 2, the filtering assembly 8 is disposed in the air extracting assembly 7, the filtering assembly 8 is electrically connected with the control device 2, the filtering assembly 8 is communicated with the air extracting assembly 7, the sampling assembly 9 is disposed in the air extracting assembly 7, the sampling assembly 9 is electrically connected with the control device 2, and the sampling assembly 9 is communicated with the filtering assembly 8.
Referring to fig. 1, 3 and 6, preferably, the pumping assembly 7 includes a processing box 701, a pumping frame 702, a first pumping pipe 703, a second pumping pipe 704, a pumping valve, a first motor 706, a transmission shaft 707, a transmission gear 708, a meshing gear 709, a pumping plate 710, a fixing plate 711, a guide rod 712 and a double-sided toothed plate 713, the processing box 701 is detachably and fixedly connected with the connection plate 603, the pumping frame 702 is disposed in the processing box 701, the pumping frame 702 is fixedly connected with the processing box 701, the first pumping pipe 703 and the second pumping pipe 704 are respectively provided with a pumping valve, the pumping valves are electrically connected with the control device 2, the pumping valves are used for controlling the opening and closing of the first pumping pipe 703 and the second pumping pipe 704, the pumping frame 702 is communicated with the outside through the first pumping pipe 703 and the second pumping pipe 704, the axial directions of the first pumping pipe 703 and the second pumping pipe 704 are mutually perpendicular, the fixing plate 711 is disposed in the pumping frame 702, a fixed plate 711 is slidably connected with a guide rod 712, one end of the guide rod 712 close to the first extraction pipe 703 and the second extraction pipe 704 is fixedly connected with an extraction plate 710, one side surface of the extraction plate 710 close to the fixed plate 711 is fixedly connected with a double-sided toothed plate 713, the extraction plate 710 and the inner wall of the extraction frame 702 form an extraction area 714 and an auxiliary area 715, the extraction area 714 and the auxiliary area 715 are sealed, a first motor 706 is arranged on the surface of the extraction frame 702, the first motor 706 is electrically connected with the control device 2, two transmission shafts 707 are arranged and symmetrically arranged, the transmission shafts 707 are rotatably connected with the extraction frame 702, any one transmission shaft 707 is fixedly connected with the output end of the first motor 706, a transmission gear 708 is arranged on the surface of the transmission shaft 707, the two transmission gears 708 are engaged with each other, a meshing gear 709 is also arranged on the surface of the transmission shaft 707, and the two meshing gears 709 are arranged on two sides of the double-sided toothed plate 713, the meshing gear 709 meshes with the double toothed plate 713.
The operator controls the hydraulic telescopic shaft 602 to start through the control device 2, and moves the air exhaust assembly 7 to the sampling area; the control device 2 closes the air inlet valve 803 and opens the air extraction valve, then controls the first motor 706 and the rotating motor 503 to start, the output end of the first motor 706 rotates to drive the transmission shaft 707 fixedly connected with the first motor to rotate, the other transmission shaft 707 rotates through the meshing between the transmission gears 708, and then drives the meshing gear 709 to rotate, through the meshing between the meshing gear 709 and the double-sided toothed plate 713, the air extraction plate 710 fixedly connected with the double-sided toothed plate 713 compresses the volume of the auxiliary area 715, the air is extracted to the air extraction area 714, then the air extraction valve is closed, and then the sampling of the air is completed; meanwhile, when gas is sampled, the rotating motor 503 is started to drive the driving gear 504 fixedly connected with the output end of the rotating motor to rotate, and the air pumping assembly 7 fixedly connected with the lifting assembly 6 is driven to slowly rotate by the meshing of the driving gear 504 and the transmission gear disc 505, so that the gas sampling device is more uniform in gas sampling, and the sampling accuracy is improved.
Referring to fig. 1, 4 and 5, preferably, the filtering assembly 8 includes a filtering frame 801, an air inlet pipe 802, an air inlet valve 803, a second motor 804, a stirring shaft 805, a stirring blade 806, an air outlet pipe 807 and an air outlet valve 808705, the filtering frame 801 is disposed in the processing box 701, the filtering frame 801 is fixedly connected with the processing box 701, the filtering frame 801 is communicated with the air extracting frame 702 through the air inlet pipe 802, a filtering liquid is disposed in the filtering frame 801, the filtering liquid is used for filtering dust particles in the sampled gas, the air inlet valve 803 is disposed on the air inlet pipe 802, the air inlet valve 803 is electrically connected with the control device 2, an air inlet channel 809 is disposed in a frame wall of the filtering frame 801, one end of the air inlet channel 809 is communicated with the air inlet pipe 802, the other end of the air inlet channel 809 is disposed in a lower wall of the filtering frame 801, a one-way valve 810 is disposed at a communication position where the air inlet channel 809 is communicated with the lower wall of the filtering frame 801, the second motor 804 is disposed on a surface of the filtering frame 801, the second motor 804 is electrically connected with the control device 2, the output end of the second motor 804 is fixedly connected with the stirring shaft 805, the stirring blades 806 are arranged on the surface of the stirring shaft 805, the size of the stirring blades 806 is sequentially increased from one end of the stirring shaft 805 far away from the second motor 804 to the other end, the filter frame 801 is communicated with the sampling assembly 9 through the air outlet pipe 807, the air outlet valve 808705 is arranged on the air outlet pipe 807, and the air outlet valve 808705 is electrically connected with the control device 2.
Design is increased in proper order to the other end through keeping away from second motor 804 from (mixing) shaft 805 with stirring vane's size, make when filtering gas again, because the centrifugal force that the dust of different masses size received is inconsistent, make the dust granule do irregular swimming in the filtrate, make the dust granule mix with in sampling gas once more, adjust through the size to different degree of depth stirring vane 805 in the filtrate, and then make the centrifugal force that the dust granule received unanimously, and then make the dust granule regularly swim in the filtrate, make sampling gas can not mix with the dust granule when the vortex that forms from the filtrate middle part is escaped after the filtrate filters, and then improved the filtration efficiency to sampling gas, and then provide the guarantee to the accuracy of subsequent gas analysis result.
Referring to fig. 1 and 5, preferably, the sampling assembly 9 includes a sampling frame 901, partition plates 902, an electric telescopic rod 903, a sampling tube 904 and a control valve 905, the sampling frame 901 is disposed in a processing box 701, the sampling frame 901 is fixedly connected with the processing box 701, the sampling frame 901 is communicated with an air outlet pipe 807, a plurality of partition plates 902 are disposed in the sampling frame 901, the electric telescopic rod 903 is disposed between two adjacent partition plates 902, the electric telescopic rod 903 is electrically connected with a control device 2, an air storage region 906 is formed between two adjacent partition plates 902 and the inner wall of the sampling frame 901, the sampling frame 901 is communicated with the sampling tube 904, the control valve 905 is disposed on the sampling tube 904, the control valve 905 is electrically connected with the control device 2, and the control valve 905 is used for controlling the opening and closing of the sampling tube 904.
The filtered sampling gas is stored in a sampling area, and a worker can control the control valve 905 to be opened through the control device 2 to sample the sampling gas in the sampling area; when the sampling gas of different regions needs to be stored respectively, the electric telescopic rod 903 between the partition plates 902 can be sequentially controlled to be started by the staff through the control device 2, then the sampling gas of different sampling regions is stored between the inner walls of the two adjacent partition plates 902 and the sampling frame 901 to form a gas storage region 906, the sampling assembly 9 is arranged, so that the sampling gas storage device can sample and store the gas of different sampling regions, and the sampling efficiency of the staff is greatly improved.
A sampling method of an indoor air sampler comprises the following steps:
s1, adjusting, wherein the control device 2 starts to move the air exhaust component 7 to the sampling area by controlling the adjusting mechanism;
s2, air suction, wherein the control device 2 controls the first motor 706 to start, close the air inlet valve 803 and open the air suction valve, so that the air suction plate 710 moves downwards to a fixed distance, and then controls the air suction valve to close, and the volume of the air suction area 714 is increased to complete air suction sampling;
s3, filtering, wherein the control device 2 controls the air suction valve to close and opens the air inlet valve 803 and the air outlet valve 808705, then the first motor 706 rotates reversely, and the sampled gas in the air suction area 714 is discharged to the sampling frame 901, and when the sampled gas passes through the filtering frame 801, the second motor 804 drives the stirring blades 806 on the stirring shaft 805 to rotate, so that dust particles in the sampled gas are filtered out under the action of centrifugal force;
and S4, sampling, storing the filtered sampling gas into the sampling area, and controlling the control valve 905 to be opened by a worker through the control device 2 to sample the sampling gas in the sampling area.
The working principle is as follows: the operator controls the hydraulic telescopic shaft 602 to start through the control device 2, and moves the air exhaust assembly 7 to the sampling area; the control device 2 closes the air inlet valve 803 and opens the air extraction valve, then controls the first motor 706 and the rotating motor 503 to start, the output end of the first motor 706 rotates to drive the transmission shaft 707 fixedly connected with the first motor to rotate, the other transmission shaft 707 rotates through the meshing between the transmission gears 708, and then drives the meshing gear 709 to rotate, through the meshing between the meshing gear 709 and the double-sided toothed plate 713, the air extraction plate 710 fixedly connected with the double-sided toothed plate 713 compresses the volume of the auxiliary area 715, the air is extracted to the air extraction area 714, then the air extraction valve is closed, and then the sampling of the air is completed; meanwhile, when gas is sampled, the rotating motor 503 is started to drive the driving gear 504 fixedly connected with the output end of the rotating motor to rotate, and the air exhaust component 7 fixedly connected with the lifting component 6 is driven to slowly rotate through the meshing of the driving gear 504 and the transmission gear disc 505, so that the gas is sampled more uniformly by the device, and the sampling accuracy is improved; the control device 2 opens the air inlet valve 803 and the air outlet valve 808705, controls the first motor 706 to rotate reversely, further discharges the sampled gas in the air exhaust region 714 to the sampling frame 901, when the sampled gas passes through the filter frame 801, the second motor 804 drives the stirring blade 806 on the stirring shaft 805 to rotate, so that dust particles in the sampled gas are filtered out under the action of centrifugal force, and the dust particles in the sampled gas are filtered by the filter assembly 8, thereby improving the sampling accuracy and providing a certain guarantee for the accuracy of subsequent gas analysis results; the filtered sampling gas is stored in a sampling area, and a worker can control the control valve 905 to be opened through the control device 2 to sample the sampling gas in the sampling area; when the sampling gas of different regions needs to be stored respectively, the electric telescopic rod 903 between the partition plates 902 can be sequentially controlled to be started by the staff through the control device 2, then the sampling gas of different sampling regions is stored between the inner walls of the two adjacent partition plates 902 and the sampling frame 901 to form a gas storage region 906, the sampling assembly 9 is arranged, so that the sampling gas storage device can sample and store the gas of different sampling regions, and the sampling efficiency of the staff is greatly improved.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (10)
1. An indoor air sampler, comprising:
a mobile base (1);
the side surface of the movable base (1) is provided with a control device (2), the control device (2) is detachably and fixedly connected with the movable base (1), the surface of the movable base (1) is provided with a clamping groove (3), the surface below the movable base (1) is provided with a movable assembly (4), the movable assembly (4) is electrically connected with the control device (2), and the movable assembly (4) is used for controlling the air sampler to perform movable sampling;
the adjusting mechanism is arranged in the clamping groove (3), is fixedly connected with the movable base (1), is electrically connected with the control device (2), and is used for controlling the air sampler to sample at different heights and enabling the sampling to be more uniform;
the processing mechanism is arranged on the surface of the adjusting mechanism and is detachably and fixedly connected with the adjusting mechanism, the processing mechanism is electrically connected with the control device (2), and the processing mechanism is used for sampling and processing air.
2. An indoor air sampler as claimed in claim 1 wherein the moving assembly (4) comprises a connecting member (401), an electric telescopic shaft (402), a connecting seat (403) and a moving pulley (404), the connecting member (401) is disposed on the surface of the moving base (1), the connecting member (401) is fixedly connected with the moving base (1), the electric telescopic shaft (402) is rotatably connected with the connecting member (401), the electric telescopic shaft (402) is electrically connected with the control device (2), the electric telescopic shaft (402) is rotatably connected with the connecting seat (403), the moving pulley (404) is disposed on the surface of the connecting seat (403), and the moving pulley (404) is fixedly connected with the connecting seat (403).
3. An indoor air sampler according to claim 2, wherein the adjusting mechanism comprises a rotating component (5) and a lifting component (6), the rotating component (5) is arranged in the clamping groove (3), the rotating component (5) is fixedly connected with the movable base (1), the rotating component (5) is electrically connected with the control device (2), the lifting component (6) is arranged on the surface of the rotating component (5), and the lifting component (6) is fixedly connected with the rotating component (5).
4. The indoor air sampler according to claim 3, wherein the rotating assembly (5) comprises a fixed frame (501), a bearing (502), a rotating motor (503), a driving gear (504), a transmission fluted disc (505) and a longitudinal shaft (506), the fixed frame (501) is arranged in the clamping groove (3), the fixed frame (501) is fixedly connected with the movable base (1), the longitudinal shaft (506) is arranged on the fixed frame (501) through the bearing (502), one end of the longitudinal shaft (506) in the frame of the fixed frame (501) is fixedly connected with the transmission fluted disc (505), the other end of the longitudinal shaft (506) is fixedly connected with the lifting assembly (6), the rotating motor (503) is arranged on the surface of the fixed frame (501), the rotating motor (503) is electrically connected with the control device (2), the output end of the rotating motor (503) is fixedly connected with the driving gear (504), and the driving gear (504) is meshed with the transmission fluted disc (505), the diameter of the driving gear (504) is smaller than that of the transmission gear disc (505).
5. An indoor air sampler according to claim 4, wherein the lifting assembly (6) comprises a bottom plate (601), a hydraulic telescopic shaft (602) and a connecting plate (603), the bottom plate (601) is fixedly connected with one end of the longitudinal shaft (506) which is positioned at the outer side of the frame body of the fixing frame (501), the hydraulic telescopic shaft (602) is arranged on the surface of one side of the bottom plate (601) close to the processing mechanism, the hydraulic telescopic shaft (602) is fixedly connected with the bottom plate (601), the hydraulic telescopic shaft (602) is electrically connected with the control device (2), the hydraulic telescopic shaft (602) is fixedly connected with the connecting plate (603), and the connecting plate (603) is detachably and fixedly connected with the processing mechanism.
6. An indoor air sampler according to claim 5, wherein the processing mechanism comprises an air extracting component (7), a filtering component (8) and a sampling component (9), the air extracting component (7) is detachably and fixedly connected with the connecting plate (603), the air extracting component (7) is electrically connected with the control device (2), the filtering component (8) is arranged in the air extracting component (7), the filtering component (8) is electrically connected with the control device (2), the filtering component (8) is communicated with the air extracting component (7), the sampling component (9) is arranged in the air extracting component (7), the sampling component (9) is electrically connected with the control device (2), and the sampling component (9) is communicated with the filtering component (8).
7. The indoor air sampler according to claim 6, wherein the air extraction assembly (7) comprises a processing box body (701), an air extraction frame (702), a first air extraction pipe (703), a second air extraction pipe (704), an air extraction valve, a first motor (706), a transmission shaft (707), a transmission gear (708), a meshing gear (709), an air extraction plate (710), a fixing plate (711), a guide rod (712) and a double-sided toothed plate (713), the processing box body (701) is detachably and fixedly connected with the connecting plate (603), the air extraction frame (702) is arranged in the processing box body (701), the air extraction frame (702) is fixedly connected with the processing box body (701), the air extraction valves are respectively arranged on the first air extraction pipe (703) and the second air extraction pipe (704), the air extraction valves are electrically connected with the control device (2), and are used for controlling the opening and closing of the first air extraction pipe (703) and the second air extraction pipe (704), the air pumping frame (702) is communicated with the outside through a first air pumping pipe (703) and a second air pumping pipe (704), the axial directions of the first air pumping pipe (703) and the second air pumping pipe (704) are mutually vertical, a fixing plate (711) is arranged in the air pumping frame (702), the fixing plate (711) is in sliding connection with a guide rod (712), one end, close to the first air pumping pipe (703) and the second air pumping pipe (704), of the guide rod (712) is fixedly connected with an air pumping plate (710), one side surface, close to the fixing plate (711), of the air pumping plate (710) is fixedly connected with a double-sided toothed plate (713), an air pumping area (714) and an auxiliary area (715) are formed on the inner wall of the air pumping frame (702), the air pumping area (714) is sealed with the auxiliary area (715), a first motor (706) is arranged on the surface of the air pumping frame (702), the first motor (706) is electrically connected with a control device (2), and two transmission shafts (707) are arranged, and two transmission shafts (707) are symmetrically arranged, the transmission shafts (707) are rotatably connected with the exhaust frame (702), any one of the transmission shafts (707) is fixedly connected with the output end of the first motor (706), the transmission gear (708) is arranged on the surface of the transmission shaft (707), the two transmission gears (708) are mutually meshed, the meshing gear (709) is also arranged on the surface of the transmission shaft (707), the two meshing gears (709) are arranged on two sides of the double-side toothed plate (713), and the meshing gear (709) is meshed with the double-side toothed plate (713).
8. An indoor air sampler as claimed in claim 7 wherein the filter assembly (8) comprises a filter frame (801), an air inlet pipe (802), an air inlet valve (803), a second motor (804), a stirring shaft (805), stirring blades (806), an air outlet pipe (807) and an air outlet valve (808) (705), the filter frame (801) is arranged in the processing box (701), the filter frame (801) is fixedly connected with the processing box (701), the filter frame (801) is communicated with the air inlet frame (702) through the air inlet pipe (802), a filter liquid is arranged in the filter frame (801), the filter liquid is used for filtering dust particles in the sampled air, the air inlet valve (803) is arranged on the air inlet pipe (802), the air inlet valve (803) is electrically connected with the control device (2), an air inlet channel (809) is arranged in the frame wall of the filter frame (801), one end of the air inlet channel (809) is communicated with the air inlet pipe (802), the other end of the air inlet channel (809) is arranged on the lower wall of the filter frame (801), a one-way valve (810) is arranged at the communication position of the air inlet channel (809) and the lower wall of the filter frame (801), the second motor (804) is arranged on the surface of the filter frame (801), the second motor (804) is electrically connected with the control device (2), the output end of the second motor (804) is fixedly connected with the stirring shaft (805), the stirring blade (806) is arranged on the surface of the stirring shaft (805), the size of the stirring blade (806) is sequentially increased from one end, away from the second motor (804), of the stirring shaft (805) to the other end, the filter frame (801) is communicated with the sampling assembly (9) through an air outlet pipe (807), air outlet valves (808) (705) are arranged on the air outlet pipe (807), and the air outlet valves (808) (705) are electrically connected with the control device (2).
9. The indoor air sampler according to claim 8, wherein the sampling assembly (9) comprises a sampling frame (901), a partition plate (902), an electric telescopic rod (903), a sampling tube (904) and a control valve (905), the sampling frame (901) is arranged in the processing box (701), the sampling frame (901) is fixedly connected with the processing box (701), the sampling frame (901) is communicated with an air outlet pipe (807), a plurality of partition plates (902) are arranged in the sampling frame (901), the electric telescopic rod (903) is arranged between two adjacent partition plates (902), the electric telescopic rod (903) is electrically connected with the control device (2), an air storage area (906) is formed between the two adjacent partition plates (902) and the inner wall of the sampling frame (901), the sampling frame (901) is communicated with the sampling tube (904), the control valve (905) is arranged on the sampling tube (904), and the control valve (905) is electrically connected with the control device (2), the control valve (905) is used for controlling the opening and closing of the sampling pipe (904).
10. A sampling method of an indoor air sampler is characterized by comprising the following steps:
s1, adjusting, wherein the control device (2) starts to move the air exhaust assembly (7) to the sampling area by controlling the adjusting mechanism;
s2, air extraction is carried out, the control device (2) controls the first motor (706) to start, close the air inlet valve (803) and open the air extraction valve, so that the air extraction plate (710) moves downwards to a fixed distance, then the air extraction valve is controlled to be closed, and the volume of the air extraction area (714) is increased to finish air extraction sampling;
s3, filtering, wherein the control device (2) controls the air suction valve to close, opens the air inlet valve (803) and the air outlet valve (808) (705), then the first motor (706) is enabled to rotate reversely, further the sampled gas in the air suction area (714) is discharged to the sampling frame (901), and when the sampled gas passes through the filtering frame (801), the second motor (804) drives the stirring blades (806) on the stirring shaft (805) to rotate, so that dust particles in the sampled gas are filtered out under the action of centrifugal force;
s4, sampling, storing the filtered sampling gas into a sampling area, and controlling a control valve (905) to open by a worker through a control device (2) to sample the sampling gas in the sampling area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210631865.2A CN115014880A (en) | 2022-06-06 | 2022-06-06 | Indoor air sampler and sampling method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210631865.2A CN115014880A (en) | 2022-06-06 | 2022-06-06 | Indoor air sampler and sampling method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115014880A true CN115014880A (en) | 2022-09-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210631865.2A Withdrawn CN115014880A (en) | 2022-06-06 | 2022-06-06 | Indoor air sampler and sampling method thereof |
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| CN (1) | CN115014880A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116558902A (en) * | 2023-07-06 | 2023-08-08 | 北京建工环境修复股份有限公司 | Collecting device for soil particle volatile gas |
-
2022
- 2022-06-06 CN CN202210631865.2A patent/CN115014880A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116558902A (en) * | 2023-07-06 | 2023-08-08 | 北京建工环境修复股份有限公司 | Collecting device for soil particle volatile gas |
| CN116558902B (en) * | 2023-07-06 | 2023-09-29 | 北京建工环境修复股份有限公司 | Collecting device for soil particle volatile gas |
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