CN213875485U - Atmospheric particulate matter and heavy metal sampling device, on-line monitoring system - Google Patents
Atmospheric particulate matter and heavy metal sampling device, on-line monitoring system Download PDFInfo
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- CN213875485U CN213875485U CN202022823171.8U CN202022823171U CN213875485U CN 213875485 U CN213875485 U CN 213875485U CN 202022823171 U CN202022823171 U CN 202022823171U CN 213875485 U CN213875485 U CN 213875485U
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Abstract
The utility model provides an atmospheric particulates and heavy metal sampling device, on-line monitoring system belongs to environmental monitoring technical field, and atmospheric particulates and heavy metal sampling device include: a sampling tube; a particulate matter detection module; and a hold-down mechanism; during sampling detection, sample gas is enriched to a sampling filter belt between the pressing mechanism and the particulate matter detector from the sampling pipe to form sampling spots, the particulate matter detector and the radioactive source perform particulate matter content analysis on the sampling spots, and then the sampling filter belt moves to the heavy metal detection module to perform heavy metal content analysis. The technical effects are as follows: the utility model provides an atmospheric particulates and heavy metal sampling device for two sets of instruments can be integrated the setting, and the same sampling pipe of sharing carries out the analysis and detection to particulate matter and heavy metal simultaneously, and concentration, the physical and chemical characteristics of the sample gas are the same, and the analysis testing result is more accurate, and has reduced use cost, has saved occupation space, and the trompil equipment process is more simple and convenient.
Description
Technical Field
The utility model belongs to the technical field of environmental monitoring, more specifically say, relate to an atmospheric particulates and heavy metal sampling device, on-line monitoring system.
Background
With the development of industry, the quality of ambient air is more and more concerned, and monitoring the ambient air becomes a necessary means in industrial places such as many chemical fields, medical fields and the like, so as to ensure that environmental pollutants are detected and analyzed in time and take active measures in time. The particulate matter is a substance which has the largest quantity, complex components, various properties and great harm in atmospheric pollutants, the heavy metal pollutants have nondegradable property, and the metal elements with different chemical forms have different bioavailability, thereby constituting great potential threat to the environment.
Therefore, in the traditional technology, the particulate matter online monitor and the heavy metal online monitor are adopted to respectively sample and detect and analyze particulate matters and heavy metals, wherein the particulate matter online monitor adopts a cutting head to screen the particle size of the particulate matters, then the sample gas is filtered by a sampling filter membrane, the particulate matters in the sample gas can be enriched on the filter membrane to form a sampling spot, and the content of the particulate matters contained in the sampling spot is analyzed by a beta ray absorption method. The heavy metal on-line monitoring appearance adopts the cutting head to screen the particle diameter of particulate matter, then the sample gas filters through the sampling filter membrane, and the particulate matter in the sample gas can enrich and form the sampling spot on the filter membrane, later removes the sampling spot and carries out heavy metal content's analysis in the heavy metal detection device.
If the user needs to monitor atmospheric particulates and heavy metal simultaneously, need be equipped with each one set of two above instruments, open two sampling holes at the roof to two independent regions of indoor arrangement lay these two instruments, the problem that particulate matter on-line monitoring appearance and heavy metal on-line monitoring appearance gas's concentration, physicochemical properties have certain deviation appears easily.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an atmospheric particulates and heavy metal sampling device, on-line monitoring system, the concentration, the physical and chemical properties that aim at solving particulate matter on-line monitoring appearance and heavy metal on-line monitoring appearance sampling gas have the technical problem of certain deviation.
In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides an atmospheric particulates and heavy metal sampling device, includes: a sampling tube; the particle detection module comprises a particle detector communicated with the sampling pipe and a radioactive source arranged at an interval with the particle detector; the compressing mechanism is arranged opposite to the particle detector and is provided with the radioactive source, and a space for penetrating the sampling filter belt is formed between the compressing mechanism and the particle detector; during sampling detection, sample gas is enriched to a sampling filter belt between the compressing mechanism and the particle detector from the sampling pipe to form sampling spots, the particle detector and the radioactive source perform particle content analysis on the sampling spots, and then the sampling filter belt moves to the heavy metal detection module to perform heavy metal content analysis.
Further, the sampling pipe with be equipped with the switching pipe between the particulate matter detector, the switching pipe certainly the sampling pipe extremely particulate matter detector slope sets up downwards.
Further, the particulate matter detector have with the sampling piece of adapter tube intercommunication, the sampling piece with hold-down mechanism sets up relatively, just the sampling piece has the ventilative mouth that makes the appearance gas enrichment to the sampling filter belt.
Further, a connecting frame is arranged between the sampling pipe and the particle detector.
Further, the pressing mechanism includes: the radioactive source mounting assembly is arranged opposite to the particle detector and is used for arranging the radioactive source and bearing the sampling filter belt; and the elastic resetting component is matched with the radioactive source mounting component and is used for enabling the radioactive source mounting component to compress the sampling filter belt.
Further, the radiation source mounting assembly includes: the mounting base is matched with the elastic resetting component and is provided with a containing cavity for containing the radioactive source; and the mounting cover body is matched with the mounting base and is used for bearing the sampling filter belt.
Furthermore, the radioactive source mounting assembly further comprises a fixed seat arranged in the accommodating cavity, and the radioactive source is fixed on the fixed seat.
Furthermore, the mounting base is provided with a bearing step in the accommodating cavity, and the bearing step and the mounting cover form a mounting space for limiting the fixing seat.
Further, the outer peripheral profile of the mounting base is provided with a boss along the radial direction, and the boss is used for being matched with a driving mechanism so that the boss can drive the radioactive source mounting assembly and the elastic resetting assembly to be far away from the particulate matter detector.
The utility model provides an atmospheric particulates and heavy metal sampling device has following technological effect at least: compared with the prior art, the atmospheric particulate and heavy metal sampling device provided by the utility model integrates the particulate detection module and the hold-down mechanism in a sampling area, so that the particulate detector is communicated with the sampling pipe, the radioactive source is arranged on the hold-down mechanism, the same sampling pipe is used for sampling, the sample gas comes out of the sampling pipe and is enriched on the sampling filter belt, then the particulate detector and the radioactive source are used for analyzing the particulate content of the sampling spots formed on the sampling filter belt, then the sampling filter belt is moved to the heavy metal detection module for analyzing the heavy metal content, the device is arranged in such a way that two sets of instruments can be integrated, the same sampling pipe is shared, the particulate and the heavy metal are analyzed and detected simultaneously, the concentration and the physicochemical characteristics of the sampled sample gas are the same, the analysis and detection result is more accurate, the use cost is reduced, and the occupied space is saved, the assembly process of the opening is simpler.
The utility model also provides an atmospheric particulates and heavy metal on-line monitoring system, include: the atmospheric particulate and heavy metal sampling device of any one of the above embodiments; the sampling filter belt is arranged between the particulate matter detector and the pressing mechanism; the heavy metal detection module is arranged at a distance from the particulate matter detection module and is used for detecting sampling spots formed by the sampling filter belt; and the wiring mechanism is connected with the sampling filter belt so that the sampling filter belt moves to the heavy metal detection module from the particulate matter detection module.
The utility model provides an atmospheric particulates and heavy metal on-line monitoring system adopt as above embodiment atmospheric particulates and heavy metal sampling device, the two technological effect is the same, no longer gives unnecessary details here.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic view of a local explosion of an atmospheric particulate and heavy metal sampling device according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of the atmospheric particulate matter and heavy metal sampling device shown in FIG. 1;
FIG. 3 is a schematic structural view of the atmospheric particulates and heavy metals removal and compaction mechanism of the sampling device shown in FIG. 1;
FIG. 4 is a schematic structural view of a radioactive source mounting assembly of the atmospheric particulates and heavy metals sampling apparatus shown in FIG. 1;
FIG. 5 is a cross-sectional schematic view of the radiation source mounting assembly shown in FIG. 4;
fig. 6 is a schematic diagram of an embodiment of the present invention, illustrating an online monitoring system for atmospheric particulates and heavy metals.
In the figure:
100. atmospheric particulate matter and heavy metal sampling device
110. Sampling pipe 120, particulate matter detection module 122, particulate matter detector
124. Radiation source 126, sampling block 128 and ventilation port
130. Pressing mechanism 140, adapter tube 150 and radioactive source installation assembly
152. Mounting base 154, mounting cover 156, and fixing seat
158. Bearing step 159, boss 160 and elastic reset assembly
161. Adjusting pipe 162, fixing frame 163 and upper positioning sleeve
164. Lower positioning sleeve 165, adjusting nut 166 and spring
167. Separation blade 200, atmospheric particulates and heavy metal on-line monitoring system
210. Sampling filter belt 220, heavy metal detection module 230 and wiring mechanism
240. Driving mechanism
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
Referring to fig. 1 to fig. 6, an atmospheric particulate and heavy metal sampling device 100 and an atmospheric particulate and heavy metal online monitoring system 200 according to an embodiment of the present invention will now be described.
Referring to fig. 1, fig. 2 and fig. 6, an embodiment of the present invention provides an atmospheric particulates and heavy metal sampling device 100, including: a sampling tube 110; a particle detection module 120 including a particle detector 122 in communication with the sampling tube 110, and a radiation source 124 spaced from the particle detector 122; the pressing mechanism 130 is arranged opposite to the particle detector 122 and is provided with a radioactive source 124, and a space for penetrating the sampling filter belt 210 is formed between the pressing mechanism 130 and the particle detector 122; during sampling detection, the sample gas is enriched from the sampling tube 110 to the sampling filter belt 210 between the compacting mechanism 130 and the particulate matter detector 122 to form sampling spots, the particulate matter detector 122 and the radiation source 124 perform particulate matter content analysis on the sampling spots, and then the sampling filter belt 210 moves to the heavy metal detection module 220 to perform heavy metal content analysis.
It should be noted that the embodiment of the utility model provides an atmospheric particulates and heavy metal sampling device 100 can directly replace the sampling pipe among the traditional heavy metal on-line monitoring appearance and be used for the clamping mechanism of centre gripping sampling filter belt, forms the on-line monitoring system who carries out analysis and detection to particulate matter and heavy metal simultaneously.
Specifically, particulate matter detection module 120 includes particulate matter detector 122 and radiation source 124, communicate particulate matter detector 122 with sampling pipe 110, set up radiation source 124 on hold-down mechanism 130, make and just can detect the analysis to particulate matter content at the sampling region, the improvement and the influence to other components of traditional heavy metal on-line monitoring appearance have been reduced, overall structure is compacter, hold-down mechanism 130 has been rationally utilized, make hold-down mechanism 130 when compressing tightly or unclamping sampling filter belt 210, can also regard as the carrier of radiation source 124, the integration degree is higher.
In addition, the particle detector 122 is vertically aligned with the compacting mechanism 130 such that the particle detector 122 is vertically aligned with the radiation source 124, and the radiation source 124 is specifically a beta radiation source. The radiation source 124 may be of other kinds if other analysis methods are employed.
During sampling detection, the sampling filter belt 210 penetrates between the pressing mechanism 130 and the particulate matter detector 122, when the sampling filter belt 210 moves from the particulate matter detection module 120 to the heavy metal detection module 220, the next sample continues to be analyzed and detected by the particulate matter detection module 120, and the detection efficiency is improved through the reciprocating circulation.
The embodiment of the utility model provides an atmospheric particulates and heavy metal sampling device 100 has following technological effect at least: compared with the prior art, the embodiment of the utility model provides an atmospheric particulates and heavy metal sampling device 100, with particulate matter detection module 120 and hold-down mechanism 130 integrated setting in the sampling region, make particulate matter detector 122 and sampling pipe 110 communicate, radiation source 124 sets up on hold-down mechanism 130, utilize same sampling pipe 110 to sample, sample gas comes out from sampling pipe 110 and gathers on sampling filter belt 210, the sampling spot that sampling filter belt 210 formed through particulate matter detector 122 and radiation source 124 carries out particulate matter content analysis immediately, then sampling filter belt 210 moves to heavy metal detection module 220 again and carries out heavy metal content analysis, so set up, make two sets of instruments can integrated setting, share same sampling pipe 110, carry out analytical testing to particulate matter and heavy metal simultaneously, the concentration of sample gas, physicochemical characteristic is the same, the analytical testing result is more accurate, and the use cost is reduced, the occupied space is saved, and the tapping assembly process is simpler and more convenient.
In order to smoothly transfer the sample gas from the sampling tube 110 to the particle detector 122, referring to fig. 1 to 3, as an embodiment, an adapter tube 140 is disposed between the sampling tube 110 and the particle detector 122, and the adapter tube 140 is disposed obliquely downward from the sampling tube 110 to the particle detector 122. In this embodiment, adapter tube 140 slope sets up, can make sample gas transfer to particulate matter detector 122 from sampling pipe 110 under the action of gravity, and adapter tube 140 can make sampling pipe 110 and particulate matter detector 122 link together well, reduces the improvement to sampling pipe 110 and particulate matter detector 122 self structure, and direct dismantlement equipment can.
Further, the particulate detector 122 has a sampling block 126 in communication with the adapter tube 140, the sampling block 126 is disposed opposite the hold-down mechanism 130, and the sampling block 126 has a vent 128 for enriching the sample gas to the sampling filter belt 210. In this embodiment, the sampling block 126 acts as an intermediary, with an air inlet on the side of the sampling block 126 in communication with the adapter tube 140, an air vent 128 on the bottom of the sampling block 126 to allow sample gas to be enriched to the sampling filter 210, and of course, a collection port on the top of the sampling block 126 to allow the particulate detector 122 to detect. The specific shape of the sample block 126 is not limited, and the outer circumference thereof may be a regular or irregular shape such as a circle, a rectangle, a hexagon, etc.
Further, a connection frame is arranged between the sampling pipe 110 and the particle detector 122. In this embodiment, the link may specifically include the connecting rod and locate the staple bolt at connecting rod both ends. The connecting frame is used for assisting the sampling tube 110 and the particle detector 122 to be fixed, so that the adapter tube 140 is prevented from being broken due to the influence of gravity, and the stability and the reliability of the assembly of the sampling tube 110 and the particle detector 122 are ensured.
With reference to fig. 4 and 5, the specific components of the pressing mechanism 130 are not limited, and as an embodiment, the pressing mechanism 130 includes: a radiation source mounting assembly 150 disposed opposite the particulate matter detector 122 for mounting a radiation source 124 and carrying a sampling filter belt 210; and a resilient return assembly 160 cooperating with the radiation source mounting assembly 150 for urging the radiation source mounting assembly 150 against the sampling filter belt 210. In this embodiment, the radiation source mounting assembly 150 cooperates with the resilient return assembly 160 to enable the sampling filter belt 210 to be tightened or loosened.
Further, radiation source mounting assembly 150 includes: a mounting base 152 cooperating with the resilient return assembly 160, the mounting base 152 having a receiving cavity for receiving the radiation source 124; and a mounting cover 154 that cooperates with the mounting base 152 for carrying the sampling filter belt 210. In this embodiment, the mounting base 152 has an accommodating cavity distributed along the axial direction, the radioactive source 124 is placed in the accommodating cavity, and the mounting cover 154 covers the mounting base 152 by means of screw connection, welding, clamping, or the like, so that on one hand, the radioactive source 124 can be prevented from deviating and falling off, and on the other hand, a bearing platform for bearing the sampling filter belt 210 can be formed. It will be appreciated that the mounting cap 154 is a hollow design to allow the radiation source 124 to irradiate the sampling filter strip 210.
Furthermore, the radiation source mounting assembly 150 further includes a fixing base 156 disposed in the receiving cavity, and the radiation source 124 is fixed to the fixing base 156. In this embodiment, a fixing seat 156 is further disposed in the accommodating cavity, the fixing seat 156 may specifically have a clamping space, and the radiation source 124 is fixed in the clamping space, so that mechanical damage can be reduced, and the structural reliability is higher.
Furthermore, the mounting base 152 has a bearing step 158 formed in the receiving cavity, and the bearing step 158 and the mounting cover 154 form a mounting space for limiting the fixing seat 156. In this embodiment, the bearing step 158 and the mounting cover 154 form a bidirectional restriction on the fixing base 156, thereby preventing the fixing base 156 from shifting, and further preventing the radiation source 124 from shifting. Specifically, the bearing steps 158 may be circumferentially disposed or circumferentially dispersed.
In order to allow the radiation source mounting assembly 150 and the resilient return assembly 160 to be lowered as a whole, in one embodiment, the mounting base 152 is provided with a radially extending projection 159 along its outer periphery, the projection 159 being adapted to cooperate with the drive mechanism 240 such that the projection 159 can move the radiation source mounting assembly 150 and the resilient return assembly 160 away from the particle detector 122. In this embodiment, the driving mechanism 240 may include a driving motor and an eccentric wheel, and the eccentric wheel is matched with the boss 159 in the height direction, so that the boss 159 drives the radioactive source installation assembly 150 and the elastic resetting assembly 160 to move downwards, thereby releasing the compression effect on the sampling filter belt 210. As the eccentric continues to rotate, the radiation source mounting assembly 150 and the resilient return assembly 160 move upward under the action of the resilient return assembly 160, which can reform the compressive action on the sampling filter belt 210.
Referring to fig. 2, the specific components of the elastic reset element 160 are not limited, and as an embodiment, the elastic reset element 160 includes: an adjustment tube 161 cooperating with the mounting base 152; the fixing frame 162 is provided with an upper positioning sleeve 163 and a lower positioning sleeve 164 which are sleeved on the adjusting pipe 161, the inner circumferential surface of the upper positioning sleeve 163 is sleeved and matched with the upper end of the outer circumferential surface of the adjusting pipe 161, the inner circumferential surface of the lower positioning sleeve 164 is in threaded connection with an adjusting nut 165, and the inner circular table surface of the adjusting nut 165 is sleeved and matched with the lower end of the outer circumferential surface of the adjusting pipe 161; and a spring 166 fitted around the outer circumferential surface of the adjustment tube 161, wherein the upper end of the spring 166 is in contact with a stopper 167 provided in the adjustment tube 161, and the lower end of the spring 166 is in contact with the adjustment nut 165.
When the eccentric wheel moves downwards, the mounting base 152 and the adjusting pipe 161 move downwards, the adjusting pipe 161 slides in the upper positioning sleeve 163 and the lower positioning sleeve 164, so that the spring 166 is compressed, and at the moment, the compression effect on the sampling filter belt 210 is released; when the eccentric moves upwards, the mounting base 152 and the adjusting tube 161 move upwards under the action of the spring 166, so that the sampling filter belt 210 is pressed again.
Referring to fig. 6, an embodiment of the present invention further provides an atmospheric particulates and heavy metal online monitoring system 200, including: the atmospheric particulate and heavy metal sampling device 100 according to any of the above embodiments; a sampling filter belt 210 disposed between the particulate matter detector 122 and the compacting mechanism 130; the heavy metal detection module 220 is arranged at an interval with the particulate matter detection module 120 and is used for detecting sampling spots formed by the sampling filter belt 210; and a routing mechanism 230 connected to the sampling filter belt 210 to move the sampling filter belt 210 from the particulate matter detection module 120 to the heavy metal detection module 220.
It should be noted that the positions and structures of the sampling filter belt 210, the heavy metal detection module 220, and the routing mechanism 230 are not changed relative to the conventional heavy metal online monitor, and the routing mechanism 230 specifically includes a driving motor and a plurality of rotating wheels, so that the sampling filter belt 210 can move.
Of course, the online monitoring system 200 for atmospheric particulates and heavy metals further includes a driving mechanism 240 as described in the above embodiments, so that the pressing mechanism 130 can press or release the sampling filter belt 210. Based on the prior art, the online monitoring system 200 for atmospheric particulates and heavy metals may further include other required components, which is not limited in this respect.
The embodiment of the utility model provides an atmospheric particulates and heavy metal on-line monitoring system 200 adopts as above embodiment atmospheric particulates and heavy metal sampling device 100, have following technological effect at least: in contrast to conventional techniques, the particulate detection module 120 and the hold-down mechanism 130 are integrated into the sampling area, the particle detector 122 is communicated with the sampling pipe 110, the radioactive source 124 is arranged on the pressing mechanism 130, the same sampling pipe 110 is used for sampling, the sample gas is discharged from the sampling pipe 110 and enriched on the sampling filter belt 210, then the particle content analysis is carried out on the sampling spots formed by the sampling filter belt 210 through the particle detector 122 and the radioactive source 124, then the sampling filter belt 210 moves to the heavy metal detection module 220 for heavy metal content analysis, the arrangement is such that two sets of instruments can be integrated, share the same sampling tube 110, meanwhile, the particles and the heavy metal are analyzed and detected, the concentration and the physical and chemical properties of the sampled gas are the same, the analysis and detection result is more accurate, the use cost is reduced, the occupied space is saved, and the hole opening and assembling process is simpler and more convenient.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. Atmospheric particulates and heavy metal sampling device, its characterized in that includes:
a sampling tube;
the particle detection module comprises a particle detector communicated with the sampling pipe and a radioactive source arranged at an interval with the particle detector; and
the compressing mechanism is arranged opposite to the particle detector and is provided with the radioactive source, and a space for penetrating the sampling filter belt is formed between the compressing mechanism and the particle detector;
during sampling detection, sample gas is enriched to a sampling filter belt between the compressing mechanism and the particle detector from the sampling pipe to form sampling spots, the particle detector and the radioactive source perform particle content analysis on the sampling spots, and then the sampling filter belt moves to the heavy metal detection module to perform heavy metal content analysis.
2. The atmospheric particulates and heavy metal sampling device of claim 1, wherein an adapter tube is arranged between the sampling tube and the particulate matter detector, and the adapter tube is arranged from the sampling tube to the particulate matter detector in an inclined downward manner.
3. The atmospheric particulates and heavy metal sampling device of claim 2, wherein the particulate detector has a sampling block in communication with the adapter tube, the sampling block is disposed opposite to the hold-down mechanism, and the sampling block has a vent for allowing sample gas to be enriched to a sampling filter belt.
4. The atmospheric particulates and heavy metals sampling device of claim 1, wherein a connecting frame is provided between the sampling tube and the particulate matter detector.
5. The atmospheric particulates and heavy metal sampling device of claim 1, wherein the hold-down mechanism comprises:
the radioactive source mounting assembly is arranged opposite to the particle detector and is used for arranging the radioactive source and bearing the sampling filter belt; and
and the elastic resetting component is matched with the radioactive source mounting component and is used for enabling the radioactive source mounting component to compress the sampling filter belt.
6. The atmospheric particulates and heavy metals sampling device of claim 5, wherein the radiation source mounting assembly comprises:
the mounting base is matched with the elastic resetting component and is provided with a containing cavity for containing the radioactive source; and
and the mounting cover body is matched with the mounting base and is used for bearing the sampling filter belt.
7. The atmospheric particulates and heavy metals sampling device of claim 6, wherein the radiation source mounting assembly further comprises a fixed seat disposed within the receiving chamber, the radiation source being fixed to the fixed seat.
8. The atmospheric particulates and heavy metal sampling device of claim 7, wherein the mounting base is formed with a bearing step in the accommodating cavity, and the bearing step and the mounting cover form a mounting space for limiting the fixing seat.
9. The atmospheric particulates and heavy metals sampling device of claim 6, wherein the mounting base has a radially extending outer contour that defines a boss for cooperating with a drive mechanism to enable the boss to move the radiation source mounting assembly and the resilient return assembly away from the particulate detector.
10. Atmospheric particulates and heavy metal on-line monitoring system, its characterized in that includes:
the atmospheric particulate and heavy metal sampling device of any one of claims 1 to 9;
the sampling filter belt is arranged between the particulate matter detector and the pressing mechanism;
the heavy metal detection module is arranged at a distance from the particulate matter detection module and is used for detecting sampling spots formed by the sampling filter belt; and
and the wiring mechanism is connected with the sampling filter belt so that the sampling filter belt moves to the heavy metal detection module from the particulate matter detection module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022823171.8U CN213875485U (en) | 2020-11-30 | 2020-11-30 | Atmospheric particulate matter and heavy metal sampling device, on-line monitoring system |
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| CN202022823171.8U CN213875485U (en) | 2020-11-30 | 2020-11-30 | Atmospheric particulate matter and heavy metal sampling device, on-line monitoring system |
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| CN213875485U true CN213875485U (en) | 2021-08-03 |
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| CN202022823171.8U Active CN213875485U (en) | 2020-11-30 | 2020-11-30 | Atmospheric particulate matter and heavy metal sampling device, on-line monitoring system |
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