CN216051280U - Particulate matter monitoring device - Google Patents
Particulate matter monitoring device Download PDFInfo
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- CN216051280U CN216051280U CN202122258177.XU CN202122258177U CN216051280U CN 216051280 U CN216051280 U CN 216051280U CN 202122258177 U CN202122258177 U CN 202122258177U CN 216051280 U CN216051280 U CN 216051280U
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- shell
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- conveying roller
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Abstract
The utility model discloses a particulate matter monitoring device which comprises a shell, wherein a display screen is arranged at the front end of the shell, a sampling tube is arranged at the upper end of the shell, an unwinding wheel and a winding wheel are arranged inside the shell, a radioactive ray source is arranged in the middle of the unwinding wheel and the winding wheel, a collector is arranged above the radioactive ray source, and the output end of the collector is connected with a processor; an air inlet pipe connected with a sampling pipe and an air outlet pipe for discharging sampling gas are arranged beside the radioactive source; a conveying roller is arranged above the unwinding wheel, and the sample attachment belt passes through the middle parts of the radioactive ray source and the collector; a cam locking mechanism is arranged in the shell, and a cam motor for driving the cam locking mechanism and a conveying roller motor for driving the conveying roller are synchronous motors; and a sensor is arranged on a motor shaft of the conveying roller motor. The utility model detects the walking distance of the sample attaching belt through the sensor, so that the sampling gas is uniformly attached to the sample attaching belt.
Description
Technical Field
The utility model relates to the technical field of environmental detection, in particular to a particulate matter monitoring device.
Background
At present, most of monitoring methods for particulate matters in air are beta-ray absorption methods, air is collected through a sampling pipe, the collected air is divided through a PM10 separator and a PM2.5 divider, filter paper attached with particulate matters is irradiated by measuring rays, and the particulate matters collected by a collector on the filter paper are analyzed by a particulate matter analyzer.
The walking precision of the collection filter paper in the existing monitoring instrument is low, after the existing monitoring instrument runs for a long time, the sample attachment belt is easy to be coincided and sampled or the collection filter paper is too long to walk, the waste of the collection filter paper is caused, the filter paper needs to be adjusted after the existing monitoring instrument runs for a period of time, and the automatic collection cannot be completely realized.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a particulate matter monitoring device which can accurately monitor the concentration of particulate matters and avoid waste of sample adhesive tapes.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows.
The particle monitoring device comprises a shell, wherein a display screen is arranged at the front end of the shell, a sampling tube is arranged at the upper end of the shell, an unwinding wheel and a winding wheel are arranged in the shell, a ray radiation source for emitting rays is arranged in the middle of the unwinding wheel and the winding wheel, a collector for collecting particle information is arranged above the ray radiation source, and the output end of the collector is connected with a processor for analyzing particles; an air inlet pipe connected with a sampling pipe and an air outlet pipe for discharging sampling gas are arranged beside the radioactive source; a conveying roller for conveying a sample attachment belt is arranged above the unwinding wheel, and the sample attachment belt passes through the middle parts of the radioactive ray source and the collector; a cam locking mechanism for compressing and releasing the sample attachment belt is arranged in the shell, and a cam motor for driving the cam locking mechanism and a conveying roller motor for driving the conveying roller are synchronous motors; and a sensor for detecting the travel distance of the sample attaching belt is arranged on a motor shaft of the conveying roller motor, and the output end of the sensor is respectively connected with the input ends of the conveying roller motor and the cam motor.
Above-mentioned particulate matter monitoring devices, cam locking mechanism is used for upwards compressing tightly the briquetting that the sample adheres to the area and setting up the cam in the rolling wheel top including setting up in the top of ray radiation source, is provided with the link on the briquetting, is connected with the connecting rod through the pivot on the link, and the tip of connecting rod is placed on the cam.
Above-mentioned particulate matter monitoring devices, be provided with the filter that is used for filtering sampling gas in the intake pipe.
Above-mentioned particulate matter monitoring devices, the display screen is tangible liquid crystal display.
Due to the adoption of the technical scheme, the technical progress of the utility model is as follows.
According to the utility model, the walking distance of the sample attachment belt is detected by the sensor, so that the sampled gas is uniformly attached to the sample attachment belt, gas on the sample attachment belt is not overlapped and sampled, the waste of the sample attachment belt is not caused, and the accuracy of monitoring the concentration of particulate matters can be ensured.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the internal structure of the present invention.
Wherein: 1. the device comprises a shell, a display screen, a sampling tube, a gas inlet tube, a filter, a gas outlet tube, a unwinding wheel, a conveying roller, a sensor, a sample attachment belt, a ray radiation source, a pressing block, a connecting shaft, a connecting rod, a cam, a winding wheel and a collector, wherein the display screen is 2, the sampling tube is 3, the gas inlet tube is 4, the filter is 5, the gas outlet tube is 6, the unwinding wheel is 7, the conveying roller is 8, the sensor is 9, the sample attachment belt is 10, the ray radiation source is 11, the pressing block is 13, the connecting shaft is 14, the connecting rod is 15, the cam is 16, and the winding wheel is 17.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Particulate matter monitoring devices, its structure is shown in fig. 1-2, including casing 1, and casing 1's front end is provided with display screen 2, and casing 1's upper end is provided with sampling pipe 3 for sample the air, and display screen 2 is tangible liquid crystal display, but the demonstration monitoring information also can carry out the information setting.
An unwinding wheel 7, a winding wheel 16, a radioactive ray source 11, a collector 17 and a cam locking mechanism are arranged in the shell 1. The unwinding wheel 7 is used for placing a sample adhesive tape roll, the winding wheel 16 is used for winding a sample adhesive tape, the radioactive ray source 11 is used for emitting radioactive rays to particles on the sample adhesive tape, the collector 17 is used for collecting particle information on the sample adhesive tape, the cam locking mechanism is used for compressing and releasing the sample adhesive tape, and the output end of the collector 17 is connected with the processor and used for analyzing the collected particle information.
The side of radioactive ray source 11 is provided with intake pipe 4, and intake pipe 4 is connected on sampling pipe 3, is provided with filter 5 in the intake pipe 4, is used for filtering the air of sampling, and radioactive ray source 11's side still is provided with outlet duct 6, is used for discharging the gas after the sampling, and outlet duct 6 is connected in the outside of casing 1, and the gas after will sampling discharges in the casing.
And a conveying roller 8 is arranged above the unreeling wheel 7 and used for conveying a sample attaching belt 10, and the sample attaching belt 10 penetrates through the middle parts of the radioactive ray source 11 and the collector 17 and is finally reeled through a reeling wheel 16.
The conveying roller 8 is driven by a driving roller motor, the cam locking mechanism is driven by a cam motor, and the conveying roller motor and the cam motor are synchronous motors.
And a sensor 9 is arranged on a motor shaft of the conveying roller motor and used for detecting the walking distance of the sample adhesion belt, and the output end of the sensor is respectively connected with the input ends of the conveying roller motor and the cam motor.
The cam locking mechanism comprises a pressing block 12 and a cam 15, the pressing block 12 is arranged above the radioactive ray source 11 and used for pressing the sample attaching belt 10 upwards, a connecting shaft 13 is arranged above the pressing block 12 and used for driving the pressing block to move up and down, a connecting rod 14 is hinged to the connecting shaft 13 through a rotating shaft, the cam 15 is arranged above a winding wheel 16, and the front end of the connecting rod 14 is placed on the cam 15. When the cam motor drives the cam to rotate, when the cam rotates upwards, the front end of the connecting rod is jacked up, the tail end of the connecting rod descends, and meanwhile, the connecting rod drives the pressing block to move downwards to release the sample attachment belt; when the cam continues to rotate, the length of the cam is downward, the connecting rod moves downward along with the rotating front end of the cam, the tail end of the connecting rod drives the connecting shaft to move upward, and meanwhile, the pressing block is driven to move upward to press the sample attachment belt.
When the sampling device works, when the cam rotates upwards, the pressing block is driven to move downwards through the connecting rod, the sample attachment belt is released, the unwinding wheel rotates, the sample attachment belt moves forwards, the sensor detects the traveling distance of the sample attachment belt, when the distance reaches a set value, the cam rotates downwards to drive the pressing block to press the sample attachment belt tightly, meanwhile, the unwinding wheel stops working, sampling gas enters from the gas inlet pipe and penetrates through the sample attachment belt, particulate matters are attached to the sample attachment belt, tail gas is discharged from the gas outlet pipe, the radioactive source emits rays, the collector collects results, sends the results to the processor for analysis and processing, and displays the results on the display screen.
Claims (4)
1. The particulate matter monitoring device comprises a shell (1), wherein a display screen (2) is arranged at the front end of the shell (1), a sampling tube (3) is arranged at the upper end of the shell (1), an unwinding wheel (7) and a winding wheel (16) are arranged inside the shell (1), a ray radiation source (11) for emitting rays is arranged in the middle of the unwinding wheel (7) and the winding wheel (16), a collector (17) for collecting particulate matter information is arranged above the ray radiation source, and the output end of the collector is connected with a processor for analyzing particulate matters; an air inlet pipe (4) connected with the sampling pipe (3) and an air outlet pipe (6) for discharging sampling gas are arranged beside the radioactive ray source (11); the method is characterized in that: a conveying roller (8) for conveying a sample attaching belt (10) is arranged above the unwinding wheel (7), and the sample attaching belt (10) penetrates through the middle parts of the radioactive ray source (11) and the collector (17); a cam locking mechanism for compressing and releasing the sample attachment belt is arranged in the shell (1), and a cam motor for driving the cam locking mechanism and a conveying roller motor for driving the conveying roller are synchronous motors; the motor shaft of the conveying roller motor is provided with a sensor (9) used for detecting the walking distance of the sample attaching belt, and the output end of the sensor is respectively connected with the input ends of the conveying roller motor and the cam motor.
2. The particulate monitoring device of claim 1, wherein: the cam locking mechanism comprises a pressing block (12) arranged above the radioactive ray source (11) and used for pressing the sample attaching belt (10) upwards and a cam (15) arranged above the winding wheel (16), a connecting shaft (13) is arranged on the pressing block (12), a connecting rod (14) is connected onto the connecting shaft (13) through a rotating shaft, and the end part of the connecting rod (14) is placed on the cam (15).
3. The particulate monitoring device of claim 1, wherein: and a filter (5) for filtering the sampled gas is arranged on the air inlet pipe (4).
4. The particulate monitoring device of claim 1, wherein: the display screen (2) is a touchable liquid crystal display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122258177.XU CN216051280U (en) | 2021-09-17 | 2021-09-17 | Particulate matter monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122258177.XU CN216051280U (en) | 2021-09-17 | 2021-09-17 | Particulate matter monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216051280U true CN216051280U (en) | 2022-03-15 |
Family
ID=80537794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122258177.XU Active CN216051280U (en) | 2021-09-17 | 2021-09-17 | Particulate matter monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216051280U (en) |
-
2021
- 2021-09-17 CN CN202122258177.XU patent/CN216051280U/en active Active
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