CN111157415A - Raise dust particulate matter on-line monitoring system - Google Patents
Raise dust particulate matter on-line monitoring system Download PDFInfo
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- CN111157415A CN111157415A CN202010141488.5A CN202010141488A CN111157415A CN 111157415 A CN111157415 A CN 111157415A CN 202010141488 A CN202010141488 A CN 202010141488A CN 111157415 A CN111157415 A CN 111157415A
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- particulate matter
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- 239000013618 particulate matter Substances 0.000 title claims abstract description 28
- 238000012544 monitoring process Methods 0.000 title claims abstract description 25
- 239000000428 dust Substances 0.000 title claims abstract description 20
- 238000005070 sampling Methods 0.000 claims abstract description 69
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 238000001514 detection method Methods 0.000 claims abstract description 28
- 239000002245 particle Substances 0.000 claims abstract description 23
- 238000000926 separation method Methods 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 15
- 230000001681 protective effect Effects 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 4
- 239000002274 desiccant Substances 0.000 claims description 3
- 230000005855 radiation Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 239000003570 air Substances 0.000 description 63
- 238000004321 preservation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 241000219000 Populus Species 0.000 description 1
- 241000124033 Salix Species 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Dispersion Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to an online monitoring system for dust particles, which comprises a case, a sampling pipe vertically arranged at the top of the case, a sampling head arranged at the top of the sampling pipe, a heater sleeved on the sampling pipe, a water-gas separator arranged between the sampling pipe and the sampling head, a particle detection module, a sampling pump, a control module and a temperature controller, wherein the particle detection module, the sampling pump, the control module and the temperature controller are respectively arranged in the case; the sampling pipe, the particulate matter detection module and the sampling pump are sequentially connected through an air pipe; according to the invention, water drops, especially large water drops, in the air are removed through the water-gas separator, then the water drops remained in the air are removed through the heater, and the water drops and the heater are combined, so that the accuracy of the measured data can be effectively ensured even in the severe environment with high haze weather or high humidity.
Description
Technical Field
The invention relates to the field of air detection, in particular to an on-line monitoring system for dust particles.
Background
With the continuous development of social economy, the problems of air pollution and air quality are more and more concerned by people; the air quality detector is used for acquiring the current overall air quality condition, so that corresponding parameters and the like can be given to bring great advantages for air quality treatment. Particulate matter sampling heating heat preservation device among air quality monitoring system as disclosed in prior art 201620042886.0, an environmental air quality monitoring appearance as disclosed in prior art 201620074226.0, above-mentioned prior art can eliminate the tiny water droplet in the air through the heating, reduce the influence of water droplet to particulate matter sensor, but at the big adverse circumstances of haze weather or humidity, the big water droplet in the air is singly by the unable effective elimination of heating, can cause the obvious big condition on the large side of monitoring result, lead to measuring the inaccuracy.
Disclosure of Invention
The invention aims to provide an on-line monitoring system for dust particles, which aims to overcome the defects of the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that: a dust particle online monitoring system comprises a case, a sampling pipe vertically arranged at the top of the case, a sampling head arranged at the top of the sampling pipe, a heater sleeved on the sampling pipe, a water-gas separator arranged between the sampling pipe and the sampling head, a particle detection module, a sampling pump, a control module and a temperature controller, wherein the particle detection module, the sampling pump, the control module and the temperature controller are respectively arranged in the case; the sampling pipe, the particulate matter detection module and the sampling pump are sequentially connected through an air pipe; the water-gas separator comprises a shell, a separation cavity, a gas collection cavity and a water collection cavity, wherein the separation cavity, the gas collection cavity and the water collection cavity are arranged in the shell in sequence from top to bottom; a plurality of air guide pipes which are vertically arranged and communicated with the air collecting cavity are arranged in the separation cavity; the bottom of the separation cavity is provided with a liquid guide hole which passes through the gas collection cavity and is communicated with the water collection cavity; the side of the separation cavity is provided with an air inlet communicated with the sampling head, and the side of the gas collection cavity is provided with an air outlet communicated with the sampling pipe.
Preferably, a drying agent is arranged in the gas collection cavity.
Preferably, the bottom of the water collecting cavity is provided with a plurality of drain holes; the drain hole is in a horn shape with wide inside and narrow outside.
Preferably, the heater comprises a heating wire spirally wound on the sampling pipe and a protective cover sleeved outside the heating wire and capable of preserving heat.
Preferably, a collection protection filter and a sheath gas protection filter are arranged in the case; the collection protection filter is respectively connected with an air outlet of the particulate matter detection module and an air inlet of the sampling pump through an air pipe; one end of the sheath gas protection filter is connected with a gas outlet of the sampling pump through a gas pipe, the other end of the sheath gas protection filter is divided into two paths, one path of the sheath gas protection filter is connected with a gas inlet of the particulate matter detection module through the gas pipe, and the other path of the sheath gas protection filter is directly discharged into the case through a gas outlet.
Preferably, the case is provided with an air speed sensor, an air direction sensor, a noise sensor and a temperature, humidity and air pressure sensor.
Preferably, a router module is arranged in the case; the control module can remotely send data to the monitoring platform through the router module.
Preferably, a storage hard disk for storing data is arranged in the case.
Preferably, a switching power supply and an air switch are further arranged in the case.
Preferably, a heat dissipation fan and a protective cover located outside the heat dissipation fan are arranged on the side surface of the chassis.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
1. according to the invention, water drops, especially large water drops, in the air are removed through the water-gas separator, then the water drops remained in the air are removed through the heater, and the water drops and the heater are combined, so that the accuracy of the measured data can be effectively ensured even in the severe environment with high haze weather or high humidity;
2. the dust particles in the air can be filtered by the collecting and protecting filter, so that the service life of the sampling pump is prolonged; the sheath gas protection filter can return clean air to the particle detection module to be used as sheath gas to dilute particle components, and the particle sensor is subjected to back flushing, so that the service lives of the sensor and the collection pump are prolonged, and a protection effect is achieved;
3. the invention integrates particle detection, wind speed detection, wind direction detection, noise detection and temperature, humidity and air pressure detection, and can simultaneously measure various atmospheric environment parameters;
4. the invention is also provided with a self-starting module, and can realize remote reset, power-off restart, fault diagnosis, program programming, upgrading and other projects through the router module, so that the maintenance is more convenient.
Drawings
The technical scheme of the invention is further explained by combining the accompanying drawings as follows:
fig. 1 is a structural diagram of an online dust particle monitoring system according to the present invention;
FIG. 2 is a cross-sectional view of the moisture separator of the present invention;
FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;
fig. 4 is a cross-sectional view taken at B-B in fig. 2.
Wherein: 1. a chassis; 2. a heat radiation fan; 3. a protective cover; 4. a switching power supply; 5. an air switch; 6. a temperature controller; 7. a wind direction sensor; 8. a self-starting module; 9. a noise sensor; 10. a control module; 11. a sampling head; 12. a water-gas separator; 121. a housing; 122. an air duct; 123. a separation chamber; 124. a gas collection cavity; 125. a drain hole; 126. a water collection cavity; 127. a drain hole; 128. an air outlet; 129. an air inlet; 13. a heater; 131. heating wires; 132. a shield; 14. a sampling tube; 15. a wind speed sensor; 16. a particulate matter detection module; 17. collecting and protecting a filter; 18. an exhaust port; 19. a sheath gas protection filter; 20. a temperature, humidity and air pressure sensor; 21. storing the hard disk; 22. a sampling pump; 23. a router module.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments.
Fig. 1-4 show an online monitoring system for dust particles according to the present invention, which comprises a case 1, a sampling tube 14 vertically disposed on the top of the case 1, a sampling head 11 disposed on the top of the sampling tube 14, a heater 13 sleeved on the sampling tube 14, a water-gas separator 12 disposed between the sampling tube 14 and the sampling head 11, a particle detection module 16, a sampling pump 22, a control module 10, and a temperature controller 6 respectively disposed in the case 1; the sampling pipe 14, the particulate matter detection module 16 and the sampling pump 22 are sequentially connected through an air pipe; the water-gas separator 12 comprises a shell 121, a separation cavity 123, a gas collection cavity 124 and a water collection cavity 126, wherein the separation cavity 123, the gas collection cavity 124 and the water collection cavity 126 are arranged in the shell 121 and are sequentially arranged from top to bottom; a plurality of gas guide pipes 122 which are vertically arranged and communicated with the gas collecting cavity 124 are arranged in the separation cavity 123; the bottom of the separation cavity 123 is provided with a liquid guide hole 125 which passes through the gas collection cavity 124 and is communicated with the water collection cavity 126; the side surface of the separation cavity 123 is provided with an air inlet 129 communicated with the sampling head 11, and the side surface of the air collection cavity 124 is provided with an air outlet 128 communicated with the sampling pipe 14; the particle detection module 16 is connected with an input end line of the control module 10, the sampling pump 22, the heater 13 and the temperature controller 6 are connected with an output end line of the control module 10, wherein the temperature controller 6 is used for adjusting the heating temperature of the heater 13; when in work: under the action of the sampling pump 22, the air passes through the sampling head 11, the water-gas separator 12, the sampling pipe 14 and the particulate matter detection module 16 in sequence and is finally discharged by the sampling pump 22; the water-gas separator 12 is used for removing water drops, especially large water drops, in the air, and the specific working process is as follows: the sampled air enters the separation cavity 123 through the air inlet 129, because water drops are heavier than the particulate matters, the air containing the particulate matters enters the air collecting cavity 124 through the plurality of air guide pipes 122 and finally enters the sampling pipe 14 through the air outlet 128, and the water drops in the air sink and flow into the water collecting cavity 126 through the liquid guide holes 125, so that water and air separation is realized; the heater 13 is used for heating and removing residual water drops in the air, namely heating and gasifying to form water vapor which does not influence the action effect of the sensor; the particulate matter detection module 16 is used for measuring the particulate matter content of the air and sending a signal to the control module 10; the control module 10 may specifically adopt any suitable processor (e.g., AVR single chip microcomputer, STM32F103) with a certain operation capability in the prior art.
Furthermore, a filter screen is arranged at a sampling port of the sampling head 11, and a microporous stainless steel screen structure is adopted, so that large-particle foreign matters such as poplar willow cotton and construction foreign matters of a construction site road can be isolated, but components such as PM2.5/PM10.0/TSP are not isolated.
Further, a drying agent is arranged in the air collecting cavity 124 and used for further removing moisture and peculiar smell in the air, and the measurement precision is improved.
Further, a plurality of drainage holes 127 are formed at the bottom of the water collecting cavity 126; the drain hole 127 is in a horn shape with a wide inner part and a narrow outer part, so that outdoor water vapor is not easy to enter.
Further, the heater 13 includes a heating wire 131 spirally wound on the sampling tube 14, and a shield 132 sleeved outside the heating wire 131 for heat preservation, wherein the heating wire 131 is uniformly and tightly connected by two or more strands, and the shield 132 is filled with a heat preservation material, including but not limited to heat preservation cotton, tinfoil paper, asbestos, and the like.
Further, a collection protection filter 17 and a sheath gas protection filter 19 are arranged in the case 1; the collection protection filter 17 is respectively connected with an air outlet of the particulate matter detection module 16 and an air inlet of the sampling pump 22 through an air pipe, and is used for filtering dust particles in air and prolonging the service life of the sampling pump 22; one end of the sheath gas protective filter 19 is connected with the gas outlet of the sampling pump 22 through a gas pipe, the other end of the sheath gas protective filter is divided into two paths, one path of the sheath gas protective filter is connected with the gas inlet of the particulate matter detection module 16 through the gas pipe, clean air returns to the particulate matter detection module 16 and is used as sheath gas to dilute particulate matter components, the particulate matter sensor is subjected to back flushing, the service lives of the sensor and the sampling pump are prolonged, the protective effect is achieved, and clean air is directly discharged into the case 1 through the gas outlet 18 on the other path of the sheath gas protective filter.
Further, a wind direction sensor 7, a wind speed sensor 15, a noise sensor 9 and a temperature and humidity air pressure sensor 20 which are respectively connected with an input end line of the control module 10 are arranged on the case 1, wherein the wind speed sensor 15 and the wind direction sensor 7 measure a wind direction and a wind speed at any time, the noise sensor 9 measures noise, the temperature and humidity air pressure sensor 20 measures temperature, humidity and air pressure and sends signals to the control module 10, and the sensors can adopt sensors commonly used in the prior art to obtain corresponding air quality parameters.
Further, a router module 23 connected with the output end of the control module 10 is arranged in the case 1; the control module 10 can remotely send data to the monitoring platform through the router module 23, so that the purpose of remote monitoring can be achieved.
Further, a storage hard disk 21 connected with the output end line of the control module 10 is arranged in the case 1, and can be used for storing ambient air data within a period of time.
Furthermore, a self-starting module 8 connected with the output end of the control module 10 through a wire is arranged in the case 1, and projects such as remote reset, power-off restart, fault diagnosis, program programming and upgrading can be realized through the router module 23, so that maintenance is more convenient.
Further, a switch power supply 4 and an air switch 5 are also arranged in the case 1; the input end of the switching power supply 4 is connected with an external power line, and the output end of the switching power supply is connected with the input end of the air switch 5; the output end of the air switch 5 is respectively connected with each electronic element wire in the case 1; wherein switching power supply 4 can convert the relatively poor former ecological power supply of electric energy quality, such as commercial power supply or battery power into the higher direct current voltage of quality that satisfies the equipment requirement, and air switch 5 plays the circuit safety effect.
Further, the side surface of the case 1 is provided with a cooling fan 2 connected with the output end line of the control module 10 and a protective cover 3 positioned outside the cooling fan 2, so as to prevent the normal use of each electronic element from being affected by the overhigh temperature in the case 1.
The above is only a specific application example of the present invention, and the protection scope of the present invention is not limited in any way. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.
Claims (10)
1. A dust particle online monitoring system comprises a case, a sampling pipe vertically arranged at the top of the case, a sampling head arranged at the top of the sampling pipe, a particle detection module, a sampling pump and a control module which are respectively arranged in the case; the sampling pipe, the particulate matter detection module and the sampling pump are sequentially connected through an air pipe; the method is characterized in that: the sampling device also comprises a heater sleeved on the sampling pipe, a water-gas separator arranged between the sampling pipe and the sampling head, and a temperature controller arranged in the case and used for controlling the heating temperature of the heater; the water-gas separator comprises a shell, a separation cavity, a gas collection cavity and a water collection cavity, wherein the separation cavity, the gas collection cavity and the water collection cavity are arranged in the shell in sequence from top to bottom; a plurality of air guide pipes which are vertically arranged and communicated with the air collecting cavity are arranged in the separation cavity; the bottom of the separation cavity is provided with a liquid guide hole which passes through the gas collection cavity and is communicated with the water collection cavity; the side of the separation cavity is provided with an air inlet communicated with the sampling head, and the side of the gas collection cavity is provided with an air outlet communicated with the sampling pipe.
2. A raise dust particulate matter on-line monitoring system according to claim 1, characterized in that: and a drying agent is arranged in the gas collection cavity.
3. A raise dust particulate matter on-line monitoring system according to claim 2, characterized in that: a plurality of drain holes are formed in the bottom of the water collecting cavity; the drain hole is in a horn shape with wide inside and narrow outside.
4. A raise dust particulate matter on-line monitoring system according to claim 3, characterized in that: the heater comprises a heating wire spirally wound on the sampling pipe and a protective cover sleeved outside the heating wire and capable of preserving heat.
5. A raise dust particle on-line monitoring system according to any one of claims 1-4, characterized in that: the collection protection filter and the sheath gas protection filter are arranged in the case; the collection protection filter is respectively connected with an air outlet of the particulate matter detection module and an air inlet of the sampling pump through an air pipe; one end of the sheath gas protection filter is connected with a gas outlet of the sampling pump through a gas pipe, the other end of the sheath gas protection filter is divided into two paths, one path of the sheath gas protection filter is connected with a gas inlet of the particulate matter detection module through the gas pipe, and the other path of the sheath gas protection filter is directly discharged into the case through a gas outlet.
6. A raise dust particulate matter on-line monitoring system according to claim 5, characterized in that: and the case is provided with an air speed sensor, an air direction sensor, a noise sensor and a temperature, humidity and air pressure sensor.
7. A raise dust particulate matter on-line monitoring system according to claim 6, characterized in that: a router module is arranged in the case; the control module can remotely send data to the monitoring platform through the router module.
8. A raise dust particulate matter on-line monitoring system according to claim 7, characterized in that: and a storage hard disk for storing data is arranged in the case.
9. A raise dust particulate matter on-line monitoring system according to claim 8, characterized in that: a switching power supply and an air switch are further arranged in the case.
10. A dust particle on-line monitoring system according to claim 9, characterized in that: and a heat radiation fan and a protective cover positioned outside the heat radiation fan are arranged on the side surface of the case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010141488.5A CN111157415A (en) | 2020-03-04 | 2020-03-04 | Raise dust particulate matter on-line monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010141488.5A CN111157415A (en) | 2020-03-04 | 2020-03-04 | Raise dust particulate matter on-line monitoring system |
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| Publication Number | Publication Date |
|---|---|
| CN111157415A true CN111157415A (en) | 2020-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010141488.5A Pending CN111157415A (en) | 2020-03-04 | 2020-03-04 | Raise dust particulate matter on-line monitoring system |
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| Country | Link |
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| CN (1) | CN111157415A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112362097A (en) * | 2020-10-27 | 2021-02-12 | 国网宁夏电力有限公司吴忠供电公司 | Power grid construction site environment protection and soil and water conservation integrated monitoring system |
| CN112903554A (en) * | 2021-03-29 | 2021-06-04 | 深圳骏信环境科技有限公司 | Device and method for detecting micro-plastic in air |
| CN118090509A (en) * | 2024-04-29 | 2024-05-28 | 齐齐哈尔和瑞泰检测技术有限公司 | Automatic monitoring system for environmental air quality |
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|---|---|---|---|---|
| CN204286496U (en) * | 2014-12-12 | 2015-04-22 | 河北先河环保科技股份有限公司 | On-line monitoring instrument is polluted in a kind of building operation |
| WO2019034949A1 (en) * | 2017-08-18 | 2019-02-21 | 山东诺方电子科技有限公司 | Air pollutant monitoring device |
| CN209485924U (en) * | 2018-12-06 | 2019-10-11 | 杭州绿洁环境科技股份有限公司 | A kind of fugitive dust monitoring device and system |
| CN110470526A (en) * | 2018-05-09 | 2019-11-19 | 江苏日盈电子股份有限公司 | Moisture separator and its application for vehicle air detection device |
| CN211602826U (en) * | 2020-03-04 | 2020-09-29 | 苏州源慧达智能科技有限公司 | Raise dust particulate matter on-line monitoring system |
-
2020
- 2020-03-04 CN CN202010141488.5A patent/CN111157415A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204286496U (en) * | 2014-12-12 | 2015-04-22 | 河北先河环保科技股份有限公司 | On-line monitoring instrument is polluted in a kind of building operation |
| WO2019034949A1 (en) * | 2017-08-18 | 2019-02-21 | 山东诺方电子科技有限公司 | Air pollutant monitoring device |
| CN110470526A (en) * | 2018-05-09 | 2019-11-19 | 江苏日盈电子股份有限公司 | Moisture separator and its application for vehicle air detection device |
| CN209485924U (en) * | 2018-12-06 | 2019-10-11 | 杭州绿洁环境科技股份有限公司 | A kind of fugitive dust monitoring device and system |
| CN211602826U (en) * | 2020-03-04 | 2020-09-29 | 苏州源慧达智能科技有限公司 | Raise dust particulate matter on-line monitoring system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112362097A (en) * | 2020-10-27 | 2021-02-12 | 国网宁夏电力有限公司吴忠供电公司 | Power grid construction site environment protection and soil and water conservation integrated monitoring system |
| CN112903554A (en) * | 2021-03-29 | 2021-06-04 | 深圳骏信环境科技有限公司 | Device and method for detecting micro-plastic in air |
| CN118090509A (en) * | 2024-04-29 | 2024-05-28 | 齐齐哈尔和瑞泰检测技术有限公司 | Automatic monitoring system for environmental air quality |
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