CN212391370U - Air quality boundary monitoring system - Google Patents
Air quality boundary monitoring system Download PDFInfo
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- CN212391370U CN212391370U CN202023164174.1U CN202023164174U CN212391370U CN 212391370 U CN212391370 U CN 212391370U CN 202023164174 U CN202023164174 U CN 202023164174U CN 212391370 U CN212391370 U CN 212391370U
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Abstract
The utility model provides an air quality boundary monitoring system, which comprises a cabinet, a supporting base and a buffer device; the top end of the cabinet is provided with a weather five-parameter analyzer and a gas probe; a power supply system and a standard gas component are arranged at the bottom of the inner side of the cabinet in parallel; from the top of the cabinet inboard to the bottom at electrical power generating system place has set gradually modularization particulate matter monitor, modularization sulfur dioxide analysis appearance, modularization nitrogen oxide analysis appearance, modularization carbon monoxide analysis appearance, modularization ozone analysis appearance, modularization dynamic calibration appearance, modularization zero gas generator and embedded control system. Compared with the prior art, the utility model provides an its air quality monitoring precision of air quality boundary monitoring system is high, reduces construction operation expense, arranges convenient flexibility.
Description
Technical Field
The utility model relates to an air quality monitoring technology field especially relates to an air quality boundary monitoring system.
Background
At present, the air quality monitoring of China is mainly performed by an air quality automatic monitoring station in the main country and assisted by a standard air quality monitoring station. Generally, the national air quality automatic monitoring station is mainly arranged in some typical regional areas to reflect the actual condition of the whole air quality of the region; while standard air quality monitoring stations are typically located in urban areas, reflecting the overall air quality practices of the urban area. The air quality automatic monitoring station and the standard air quality monitoring station are generally high in monitoring precision, and meanwhile, station building construction and operation cost is high, so that comprehensive coverage cannot be achieved. The miniature air quality monitoring station is usually adopted to construct in urban grid air quality construction, comprehensive coverage can be basically achieved, construction, operation and maintenance cost is low, but the miniature air quality monitoring station adopts an electrochemical sensor mode, monitoring precision is not high, and the miniature air quality monitoring station is difficult to be used for accurate analysis and traceability of atmospheric pollution. In cities, there are often a lot of atmospheric pollution events at the city-city boundary and the district-district boundary, and it is difficult to analyze and judge the source of pollution and judge the attribution of responsibility by using conventional monitoring technology. Thus, the prior art has yet to be improved and enhanced.
Therefore, there is a need for a new air quality boundary monitoring system that overcomes the above-mentioned deficiencies.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a novel air quality boundary monitoring system, its air quality monitoring precision is high, reduces construction operation expense, arranges convenient in a flexible way.
In order to achieve the above object, the utility model provides an air quality boundary monitoring system, which comprises a cabinet and a supporting base arranged at the bottom end of the cabinet, wherein a buffer device is arranged between the supporting base and the cabinet; the top end of the cabinet is provided with a weather five-parameter analyzer and gas probes arranged on two sides of the weather five-parameter analyzer; a power supply system and a standard gas component are arranged at the bottom of the inner side of the cabinet in parallel;
from the top of the cabinet inboard to the bottom at electrical power generating system place has set gradually modularization particulate matter monitor, modularization sulfur dioxide analysis appearance, modularization nitrogen oxide analysis appearance, modularization carbon monoxide analysis appearance, modularization ozone analysis appearance, modularization dynamic calibration appearance, modularization zero gas generator and embedded control system.
Further, the supporting base comprises a base, a supporting column is arranged at the center of the base, the supporting column is arranged on the supporting column, the holding box is far away from one side of the base, the supporting ring on the supporting column is sleeved with a supporting rod extending from two sides of the supporting ring to the direction of the holding box in an inclined mode, the supporting rod is arranged on one side of the supporting rod, the telescopic cylinder is connected with the holding box and the base, and the buffering device is arranged in the holding box.
Furthermore, the buffer device comprises elastic columns arranged on two opposite side walls of the accommodating box, compression parts arranged at the opposite ends of the two elastic columns, two arc-shaped parts connected with the two compression parts, an elastic telescopic sleeve arranged between the two arc-shaped parts, and guide rods extending oppositely from the two opposite side walls of the accommodating box, wherein the guide rods penetrate through the compression parts, and the guide directions of the guide rods are parallel to the extending direction of the elastic columns.
Furthermore, an outdoor cabinet air conditioner is also arranged on the side wall of the cabinet.
Further, the two gas probes are a PM2.5 gas sampling probe and a PM10 gas sampling probe respectively.
Further, the modular particulate matter monitor includes modular PM2.5 monitor and modular PM10 monitor, PM2.5 gas sampling probe with modular PM2.5 monitor is connected, PM10 gas sampling probe with modular PM10 monitor is connected.
Compared with the prior art, the air quality boundary monitoring system of the utility model can realize the outdoor installation and use of the equipment without building a station house; the system has high measurement precision, automatic calibration and automatic data uploading, realizes full-automatic unattended operation, adopts a modular design and a national standard analysis method for monitoring, meets the analysis traceability monitoring precision, reduces the construction and operation cost, is flexible in arrangement area and convenient and fast to install, and provides a decision basis for traceability analysis of the air pollution condition.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
fig. 1 is a schematic structural diagram of the air quality boundary monitoring system of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides an air quality boundary monitoring system, which includes a cabinet 1 and a supporting base 2 disposed at a bottom end of the cabinet 1, wherein a buffering device 3 is further disposed between the supporting base 2 and the cabinet 1. The cabinet 1 is installed in it is convenient for fixed on the support base 2, guarantees simultaneously to adopt the probe to be higher than 3 meters, satisfies relevant requirement, buffer 3 is used for guaranteeing 1 work of cabinet is more stable.
The outdoor constant temperature cabinet adopted by the cabinet 1 is an industrial cabinet directly used for outdoor installation, and is characterized by having a good heat preservation effect, IP65 protection level can deal with severe weather such as rain and snow, and normal operation of equipment in the cabinet is guaranteed, and further, an outdoor cabinet air conditioner 4 is further arranged on the side wall of the cabinet 1. The outdoor cabinet air conditioner is an industrial air conditioner and can continuously run for 7 × 24 hours, and the equipment adopts a 1200W power air conditioner, so that the equipment in the cabinet can work at about 25 ℃, and the continuous and stable running of the equipment is ensured.
The top end of the cabinet 1 is provided with a weather five-parameter analyzer 5 and gas probes 6 arranged on two sides of the weather five-parameter analyzer 5; the two gas probes 6 are a PM2.5 gas sampling probe 61 and a PM10 gas sampling probe 62 respectively. The gas probe 6 is used for sampling gas in a monitoring area, and the five-meteorological-parameter analyzer 5 is used for measuring temperature, humidity, wind speed, wind direction and atmospheric pressure in five meteorological parameters in a sensor measuring mode.
1 inboard bottom of rack is provided with electrical power generating system 7 and mark gas subassembly 8 side by side, electrical power generating system 7 adopts power UPS system mainly used to ensure equipment supply voltage's stability, has lightning protection, excessive pressure, and functions such as undervoltage, earth leakage protection adopt eight groups of 60AH battery to insert UPS system simultaneously, can continuous operation more than eight hours after the assurance system outage, and monitoring data does not break off.
The gas marking component 8 adopts an automatic calibration system to prepare standard gas, is connected with a dynamic dilution instrument through a pressure reducing valve, a throttle valve, a flowmeter, a hose and a control valve, is connected with equipment after being diluted, is provided with a closed gas chamber in a measurement host machine for calibrating the equipment, and can realize the automatic calibration of the instrument.
From the top of the inner side of the cabinet 1 to the bottom where the power supply system 7 is located, a modular particulate matter monitor 9, a modular sulfur dioxide analyzer 10, a modular nitrogen oxide analyzer 11, a modular carbon monoxide analyzer 12, a modular ozone analyzer 13, a modular dynamic calibrator 14, a modular zero gas generator 15 and an embedded control system 16 are sequentially arranged.
Further, the modular particulate matter monitor 9 includes a modular PM2.5 monitor 91 and a modular PM10 monitor 92, the PM2.5 gas sampling probe 61 is connected 91 to the modular PM2.5 monitor, and the PM10 gas sampling probe 62 is connected 92 to the modular PM10 monitor.
The measurement of the particulate matters (PM 2.5 and PM 10) in the modular particulate matter monitor 9 adopts a beta-ray method, and the measurement principle is that a beta-ray sensor with an ionization chamber structure is placed in a measurement air chamber, an air inlet is opposite to the direction of air flow, and the constant speed of exhaust air passing through the ionization chamber is ensured; when beta rays with certain energy in the ionization chamber pass through the substance, the beta rays can interact with atoms or atomic nuclei in the substance to cause energy attenuation, and the energy attenuation is proportional to the mass of the substance; the mass of the material is calculated from the beta ray energy attenuation and the concentration of the particulate matter is calculated from the mass of the material and the volume of the ionization chamber.
The sulfur dioxide in the modularized sulfur dioxide analyzer 10 is measured by using an ultraviolet fluorescence method, an optical system mainly comprises a light source, a gas chamber, a PMT (photomultiplier tube), a reference detector and the like, when in measurement, the ultraviolet light source emits 214nm light, the gas chamber excites SO2 to analyze and generate 330nm fluorescence, the intensity of the fluorescence is in a linear relation with the concentration of SO2, the reference detector is used for detecting the intensity of the light source, the PMT detects the intensity of the fluorescence, and the concentration of SO2 is calculated according to the light intensity of the reference detector and the PMT detector.
The determination of the nitrogen oxides in the modular nitrogen oxide analyzer 11 adopts a chemiluminescence method, and NO and O3 absorb chemical energy after reacting to generate excited NO 2; the excited NO2 is unstable, and releases fluorescence in the form of light quantum in the process of returning to the ground state, and the concentration of NO can be calculated by measuring the fluorescence intensity through PMT; the NOx concentration is measured after the total conversion of NO2 in the sample gas to NO by molybdenum conversion.
The carbon monoxide in the modular carbon monoxide analyzer 12 is measured by a gas filtration-related non-dispersive infrared method: based on that CO molecules absorb infrared light waves to accord with the Beer-Lambert law, infrared light with specific wavelength is preferentially modulated and then respectively passes through a gas chamber containing high-concentration carbon monoxide and a gas chamber containing pure nitrogen, when the infrared light passes through the high-concentration carbon monoxide, the infrared light enters a sample gas chamber, and the CO does not absorb the infrared light any more; after passing through pure nitrogen, the infrared light can be absorbed by the CO in the sample gas and the information of the CO concentration of the sample gas is recorded. The measurement signal M and the reference signal R are obtained through a demodulation circuit, and the CO concentration can be calculated according to the M/R.
The ozone in the modularized ozone analyzer 13 is measured by an ultraviolet photometry, based on the Beer-Lamber law, the O3 molecule has characteristic absorption to ultraviolet light with the wavelength of 254nm, the attenuation degree of the ultraviolet light passing through an air sample is directly measured, and the absorption value is in a certain proportion to the concentration of ozone. And periodically and alternately passing the sample gas and the sample gas without ozone through a gas cell by using an electromagnetic valve to measure the absorption value, thereby obtaining the concentration of ozone.
The modularized dynamic calibrator 14 is used for dynamic calibration of equipment, so that accuracy of equipment monitoring data is ensured, and influence of environmental factors on measurement results is reduced through an automatic timing calibration function.
The modular zero generator 15 is used for zero calibration of the equipment, measurement drift often occurs in the process of equipment rerunning, and drift in the process of equipment monitoring can be well avoided through zero calibration.
The embedded control system 16 mainly controls the automatic monitoring, automatic calibration, real-time data acquisition and real-time data transmission of the modular equipment in the cabinet 1, and compared with the traditional X86 control system, the embedded control system has the advantages of low system delay, high real-time performance, low energy consumption and greatly improved system stability
The base 21 is used for fixing subaerial, support column 22 mainly used supporting role and height-adjusting's effect, holding box 23 is kept away from the one end of support column 22 is equipped with the opening, cabinet 1 certainly the opening is placed in the holding box 23, the support ring 24 with bracing piece 25 mainly used auxiliary stay holding box 23 simultaneously through support ring and support column threaded connection, conveniently adjusts holding box 23 apart from the height of base 21, guarantees the height of cabinet 1 is in suitable position, telescopic cylinder 26 is used for giving along the direction on perpendicular to ground holding box 23 provides ascending effort, also can play a cushioning effect simultaneously.
The buffer device 3 includes elastic columns 31 disposed on two opposite side walls of the accommodating box 23, compression members 32 disposed at opposite ends of the two elastic columns 31, two arc-shaped members 33 connecting the two compression members 32, elastic expansion sleeves 34 disposed between the two arc-shaped members 33, and guide rods 35 extending from the two opposite side walls of the accommodating box 23 in opposite directions, wherein the guide rods 35 penetrate through the compression members 32, and the guide direction of the guide rods 35 is parallel to the extending direction of the elastic columns 31.
The elastic columns 31 are used for providing elastic force along the opposite direction of the two opposite side walls of the accommodating box 23, the compression pieces 32 are used for being abutted against the side walls of the cabinet 1, the compression pieces 32 can be made of sound-deadening and shock-absorbing materials, the inner arc surfaces of the two arc-shaped pieces 33 are oppositely arranged along the direction perpendicular to the ground and abutted against the bottom end of the cabinet 1, so as to provide a buffering effect along the direction perpendicular to the ground, the elastic telescopic sleeves 34 are used for providing a certain supporting and elastic restoring effect for the two arc-shaped pieces 33, and the guide rods 35 are mainly used for guiding the compression pieces 32.
Compared with the prior art, the air quality boundary monitoring system of the utility model can realize the outdoor installation and use of the equipment without building a station house; the modular design system has high measurement accuracy, automatic calibration and automatic data uploading, realizes full-automatic unattended operation, greatly reduces the construction, operation and maintenance cost, is flexible in arrangement area, is convenient to install, and provides decision-making basis for traceability analysis of air pollution conditions.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.
Claims (6)
1. An air quality boundary monitoring system, comprising: the device comprises a cabinet and a supporting base arranged at the bottom end of the cabinet, wherein a buffer device is arranged between the supporting base and the cabinet; the top end of the cabinet is provided with a weather five-parameter analyzer and gas probes arranged on two sides of the weather five-parameter analyzer; a power supply system and a standard gas component are arranged at the bottom of the inner side of the cabinet in parallel;
from the top of the cabinet inboard to the bottom at electrical power generating system place has set gradually modularization particulate matter monitor, modularization sulfur dioxide analysis appearance, modularization nitrogen oxide analysis appearance, modularization carbon monoxide analysis appearance, modularization ozone analysis appearance, modularization dynamic calibration appearance, modularization zero gas generator and embedded control system.
2. The air quality boundary monitoring system of claim 1, wherein: the supporting base comprises a base, a supporting column arranged at the center of the base is arranged, the supporting column is arranged to be far away from the containing box on one side of the base, a supporting ring arranged on the supporting column is sleeved with a supporting rod extending from two sides of the supporting ring to the direction of the containing box in a tilting mode, and a telescopic cylinder arranged on one side of the supporting rod is arranged to be connected with the containing box and the base, and a buffering device is arranged in the containing box.
3. The air quality boundary monitoring system of claim 2, wherein: the buffer device comprises elastic columns arranged on two opposite side walls of the accommodating box, compression parts arranged at the opposite ends of the two elastic columns, two arc-shaped parts connected with the two compression parts, elastic telescopic sleeves arranged between the two arc-shaped parts, and guide rods extending oppositely from the two opposite side walls of the accommodating box, wherein the guide rods penetrate through the compression parts, and the guide direction of the guide rods is parallel to the extending direction of the elastic columns.
4. The air quality boundary monitoring system of claim 1, wherein: and an outdoor cabinet air conditioner is also arranged on the side wall of the cabinet.
5. The air quality boundary monitoring system of claim 1, wherein: the two gas probes are respectively a PM2.5 gas sampling probe and a PM10 gas sampling probe.
6. The air quality boundary monitoring system of claim 5, wherein: the modular particulate matter monitor comprises a modular PM2.5 monitor and a modular PM10 monitor, wherein the PM2.5 gas sampling probe is connected with the modular PM2.5 monitor, and the PM10 gas sampling probe is connected with the modular PM10 monitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023164174.1U CN212391370U (en) | 2020-12-25 | 2020-12-25 | Air quality boundary monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023164174.1U CN212391370U (en) | 2020-12-25 | 2020-12-25 | Air quality boundary monitoring system |
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| CN212391370U true CN212391370U (en) | 2021-01-22 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113607890A (en) * | 2021-08-13 | 2021-11-05 | 江西智汇环境技术有限公司 | Air quality monitoring device |
| CN115166005A (en) * | 2022-06-23 | 2022-10-11 | 南京信息工程大学 | Air quality situation sensing system and method |
-
2020
- 2020-12-25 CN CN202023164174.1U patent/CN212391370U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113607890A (en) * | 2021-08-13 | 2021-11-05 | 江西智汇环境技术有限公司 | Air quality monitoring device |
| CN115166005A (en) * | 2022-06-23 | 2022-10-11 | 南京信息工程大学 | Air quality situation sensing system and method |
| CN115166005B (en) * | 2022-06-23 | 2023-05-16 | 南京信息工程大学 | Air quality situation awareness system and method |
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