CN209745638U - Sampling device and air quality continuous monitoring system - Google Patents
Sampling device and air quality continuous monitoring system Download PDFInfo
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- CN209745638U CN209745638U CN201920432739.8U CN201920432739U CN209745638U CN 209745638 U CN209745638 U CN 209745638U CN 201920432739 U CN201920432739 U CN 201920432739U CN 209745638 U CN209745638 U CN 209745638U
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
The utility model relates to a sampling device and air quality continuous monitoring system. The sampling device comprises a sampling cylinder, wherein a first sampling cavity and a second sampling cavity are arranged in the sampling cylinder in parallel; first sampling chamber bottom be provided with in the cartridge filter of first sampling chamber intercommunication, threaded connection is passed through with first sampling chamber bottom in cartridge filter upper portion edge, has placed removable particulate matter filter screen in the cartridge filter. The first air outlet of the sampling device is connected with one or more gas monitoring modules, and the second air outlet is connected with a particulate matter monitoring module. The particulate matter in the air is filtered by the particulate matter filter screen in the filter cartridge, so that the pollution of the particulate matter to the gas detection module can be avoided; the protective cover plays a role in preventing the sampling cylinder from being damaged and corroded, and is beneficial to prolonging the service life of equipment. In addition, particulate matter filter screen and first sampling chamber to and safety cover and sampling cylinder all pass through bolted connection, have made things convenient for the maintenance to equipment.
Description
Technical Field
The utility model relates to an air quality monitoring facilities particularly, is an air sampling device and air quality continuous monitoring system.
Background
An air quality monitoring system is used for collecting and analyzing the condition and change of the ambient air quality, and generally comprises a sampling device, a detection and analysis device and a data processing and transmission system. The content of gas (such as SO2, NOx, CO, O3 and the like) and particulate matters (PM 10, PM2.5 and the like) in the air can be monitored, the currently adopted sampling device does not classify the gas and the particulate matters, the particulate matters enter the monitoring and analyzing device and then pollute the gas detection and analyzing device, the accuracy of a detection result is influenced, and the service life of the gas detection and analyzing device can be reduced.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a sampling device and air quality continuous monitoring system reaches the purpose of being convenient for maintain and improving life at least.
In order to solve the technical problem, according to an aspect of the present invention, a sampling device is provided, which comprises a sampling cylinder, wherein one end of the sampling cylinder is an air inlet, the other end of the sampling cylinder is provided with a negative pressure fan for sucking an air sample, and a first sampling cavity and a second sampling cavity are arranged in the sampling cylinder in parallel; the bottom of the first sampling cavity is provided with a filter cartridge communicated with the first sampling cavity, the edge of the upper part of the filter cartridge is connected with the bottom of the first sampling cavity through threads, a replaceable particulate matter filter screen is placed in the filter cartridge, the bottom of the filter cartridge is connected with an inlet of a first negative pressure fan, and an outlet of the first negative pressure fan is connected with a first air outlet; the bottom of the second sampling cavity is connected with an inlet of a second negative pressure fan, and an outlet of the second negative pressure fan is connected with a second air outlet.
Further, the sampling cylinder outside sets up hollow cylindrical safety cover, and the through-hole has been seted up to the safety cover bottom, and sampling cylinder upper portion is followed the through-hole pack into in the safety cover and with threaded connection is passed through to the through-hole, safety cover bottom and safety cover side lower part equipartition inlet port.
Furthermore, an annular air permeable plate is arranged on the inner wall of the protective cover at the upper part of the air inlet, and the air inlet is uniformly distributed on the air permeable plate.
According to the utility model discloses a further aspect provides an air quality continuous monitoring system, including above sampling device, sampling device's first air outlet connects one or more gaseous monitoring module, second air outlet connection particulate matter monitoring module.
Further, the gas monitoring module is one or more of a combination of an ultraviolet fluorescence SO2 monitoring module, a chemiluminescence NOx monitoring module, a CO monitoring module of gas filtering correlation spectroscopy and an ultraviolet photometry O3 monitoring module.
Further, the particle detection module is a beta-ray absorption particle monitoring module.
Compared with the prior art, the utility model discloses when air detection advances the appearance, fall into two the tunnel with the air, get into first sampling chamber under negative-pressure air fan effect all the way, get into the gas monitoring module in the monitoring system after filtering the particulate matter, another way gets into the second sampling chamber, then directly gets into the particulate matter detection module in the monitoring system.
The particulate matter in the air is filtered by the particulate matter filter screen arranged in the filter cartridge, so that the pollution of the particulate matter to the gas detection module can be avoided; the protective cover plays a role in preventing the sampling cylinder from being damaged and corroded, and is beneficial to prolonging the service life of equipment. In addition, particulate matter filter screen and first sampling chamber to and safety cover and sampling cylinder all pass through bolted connection, have made things convenient for the maintenance to equipment.
Drawings
Fig. 1 is a schematic structural diagram of the sampling device and the air quality continuous monitoring system of the present invention.
In the figure, 1-sampling cylinder, 2-air inlet, 3-first sampling cavity, 4-second sampling cavity, 5-filter cylinder, 6-particle filter screen, 7-first negative pressure fan, 8-first air outlet, 9-second negative pressure fan, 10-second air outlet, 11-protective cover, 12-air permeable plate, 13-ultraviolet fluorescence method SO2 monitoring module, 14-chemiluminescence method NOx monitoring module, 15-CO monitoring module of gas filtering related spectroscopy, 16-ultraviolet photometry O3 monitoring module and 17-beta ray absorption method particle monitoring module.
Detailed Description
The utility model relates to a sampling device provided by a typical embodiment, which comprises a sampling cylinder 1, wherein one end of the sampling cylinder 1 is an air inlet 2, the other end is provided with a negative pressure fan for sucking an air sample, and a first sampling cavity 3 and a second sampling cavity 4 are arranged in the sampling cylinder 1 in parallel; the bottom of the first sampling cavity 3 is provided with a filter cartridge 5 communicated with the first sampling cavity 3, the edge of the upper part of the filter cartridge 5 is connected with the bottom of the first sampling cavity 3 through threads, a replaceable particulate matter filter screen 6 is placed in the filter cartridge 5, the bottom of the filter cartridge 5 is connected with an inlet of a first negative pressure air fan 7, and an outlet of the first negative pressure air fan 7 is connected with a first air outlet 8; the bottom of the second sampling cavity 4 is connected with an inlet of a second negative pressure fan 9, and an outlet of the second negative pressure fan 9 is connected with a second air outlet 10.
According to the above embodiment, when air detection and sample injection are performed, air is divided into two paths, one path enters the first sampling cavity 3 under the action of the negative pressure fan, and enters the gas monitoring module in the monitoring system after particulate matters are filtered, SO that the contents of SO2, NOx, CO, O3 and the like in the air are detected. The other path enters a second sampling cavity 4 and then directly enters a particulate matter detection module in the monitoring system to detect the content of PM10, PM2.5 and the like in the air.
Through setting up the particulate matter in the particulate matter filter screen 7 filtering air in cartridge filter 5, can avoid the pollution of particulate matter to gas detection module. The particulate matter filter screen 7 is connected with the first sampling cavity 3 through bolts so as to be convenient for cleaning or replacing the filter screen. Referring to fig. 1, the sampling cylinder is a cylindrical cylinder, a first sampling cavity 3 and a second sampling cavity 4 are separated and arranged inside the sampling cylinder, the bottom of the sampling cylinder on one side of the first sampling cavity 3 extends downwards to form a section of hollow cylinder, and the outer surface of the cylinder is connected with a filter cylinder bolt.
In a preferred embodiment, the outside of the sampling cylinder 1 is provided with a hollow cylindrical protective cover 11, the bottom of the protective cover 11 is provided with a through hole, the upper part of the sampling cylinder 1 is loaded into the protective cover 11 through the through hole and is in threaded connection with the through hole, and air inlets are uniformly distributed at the bottom of the protective cover 11 and at the lower part of the side surface of the protective cover 11. The main function of the protective cover is to prevent sand, stones, rain, snow, etc. from entering or damaging the sampling cartridge. In addition, arrange the inlet port in protection cover bottom and safety cover side lower part for the air has certain buffering time when getting into the safety cover to the air inlet who gets into the sampling barrel top, is favorable to the stability of sampling flow.
In another preferred embodiment, an annular air permeable plate 12 is arranged on the inner wall of the protective cover 11 at the upper part of the air inlet, and the air inlet is uniformly distributed on the air permeable plate 12, so that the function of stabilizing the flow can be further improved.
The utility model discloses another preferred embodiment provides a continuous monitoring system of air quality, including above sampling device, sampling device's first air outlet connects one or more gas monitoring module, and second air outlet connects particulate matter monitoring module.
In relative detail, the gas monitoring module is one or more of a combination of an ultraviolet fluorescence SO2 monitoring module 13, a chemiluminescence NOx monitoring module 14, a CO monitoring module 15 of gas filtering correlation spectroscopy and an ultraviolet photometry O3 monitoring module 16. In a relatively specific embodiment, the particle monitoring module is a beta-ray absorption particle monitoring module 17. Through above-mentioned gaseous detection module of detection and particulate matter monitoring module, the utility model discloses can realize the monitoring to a plurality of parameters such as SO2, NOx, CO, O3 and PM10, PM2.5 in the air. Of course, other commercially available sensors of different types may be used to monitor the above parameters.
Claims (6)
1. The utility model provides a sampling device, includes the cartridge, and the one end of cartridge is air intlet, and the other end disposes the negative-pressure air fan who is used for inhaling the air sample, its characterized in that: a first sampling cavity and a second sampling cavity are arranged in the sampling cylinder in parallel; the bottom of the first sampling cavity is provided with a filter cartridge communicated with the first sampling cavity, the edge of the upper part of the filter cartridge is connected with the bottom of the first sampling cavity through threads, a replaceable particulate matter filter screen is placed in the filter cartridge, the bottom of the filter cartridge is connected with an inlet of a first negative pressure fan, and an outlet of the first negative pressure fan is connected with a first air outlet; the bottom of the second sampling cavity is connected with an inlet of a second negative pressure fan, and an outlet of the second negative pressure fan is connected with a second air outlet.
2. The sampling device of claim 1, wherein: the sampling cylinder outside sets up hollow cylindrical safety cover, and the through-hole has been seted up to the safety cover bottom, and sampling cylinder upper portion is followed the through-hole pack into in the safety cover and with the through-hole passes through threaded connection, safety cover bottom and safety cover side lower part equipartition inlet port.
3. The sampling device of claim 2, wherein: and an annular ventilating plate is arranged on the inner wall of the protective cover on the upper part of the air inlet, and the air inlet is uniformly distributed on the ventilating plate.
4. An air quality continuous monitoring system, characterized in that: comprising a sampling device according to claim 1, 2 or 3, the first air outlet of the sampling device being connected to one or more gas monitoring modules and the second air outlet being connected to a particulate monitoring module.
5. The air quality continuous monitoring system of claim 4, wherein: the gas monitoring module is one or a combination of more of an ultraviolet fluorescence SO2 monitoring module, a chemiluminescence NOx monitoring module, a CO monitoring module of gas filtering correlation spectroscopy and an ultraviolet photometry O3 monitoring module.
6. The air quality continuous monitoring system of claim 5, wherein: the particle monitoring module is a beta-ray absorption particle monitoring module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920432739.8U CN209745638U (en) | 2019-04-02 | 2019-04-02 | Sampling device and air quality continuous monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920432739.8U CN209745638U (en) | 2019-04-02 | 2019-04-02 | Sampling device and air quality continuous monitoring system |
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| Publication Number | Publication Date |
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| CN209745638U true CN209745638U (en) | 2019-12-06 |
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| CN201920432739.8U Active CN209745638U (en) | 2019-04-02 | 2019-04-02 | Sampling device and air quality continuous monitoring system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111812003A (en) * | 2020-08-10 | 2020-10-23 | 华电智控（北京）技术有限公司 | Particulate matter monitor, comprehensive monitoring system and particulate matter monitoring and calibrating method |
| CN112858202A (en) * | 2021-02-26 | 2021-05-28 | 江苏天瑞仪器股份有限公司 | Series connection type detection device and detection method for diesel engine discharged particulate matters and gas |
-
2019
- 2019-04-02 CN CN201920432739.8U patent/CN209745638U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111812003A (en) * | 2020-08-10 | 2020-10-23 | 华电智控（北京）技术有限公司 | Particulate matter monitor, comprehensive monitoring system and particulate matter monitoring and calibrating method |
| CN112858202A (en) * | 2021-02-26 | 2021-05-28 | 江苏天瑞仪器股份有限公司 | Series connection type detection device and detection method for diesel engine discharged particulate matters and gas |
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