CN114863646A - Air pollution early warning system based on atmospheric oxidation condition - Google Patents
Air pollution early warning system based on atmospheric oxidation condition Download PDFInfo
- Publication number
- CN114863646A CN114863646A CN202210502921.2A CN202210502921A CN114863646A CN 114863646 A CN114863646 A CN 114863646A CN 202210502921 A CN202210502921 A CN 202210502921A CN 114863646 A CN114863646 A CN 114863646A
- Authority
- CN
- China
- Prior art keywords
- early warning
- air
- pipe
- system based
- monitoring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000003915 air pollution Methods 0.000 title claims abstract description 17
- 230000003647 oxidation Effects 0.000 title claims abstract description 10
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 10
- 238000012544 monitoring process Methods 0.000 claims abstract description 50
- 238000001514 detection method Methods 0.000 claims abstract description 34
- 239000012855 volatile organic compound Substances 0.000 claims abstract description 31
- 230000007613 environmental effect Effects 0.000 claims abstract description 25
- 230000008859 change Effects 0.000 claims abstract description 14
- 230000002159 abnormal effect Effects 0.000 claims abstract description 4
- 238000012545 processing Methods 0.000 claims abstract description 4
- 230000007246 mechanism Effects 0.000 claims description 35
- 238000005070 sampling Methods 0.000 claims description 20
- 238000005192 partition Methods 0.000 claims description 14
- 210000003437 trachea Anatomy 0.000 claims description 13
- 230000001590 oxidative effect Effects 0.000 claims description 11
- 238000004891 communication Methods 0.000 claims description 9
- 201000009310 astigmatism Diseases 0.000 claims description 2
- 210000004276 hyalin Anatomy 0.000 claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 129
- 238000004140 cleaning Methods 0.000 description 22
- 239000002245 particle Substances 0.000 description 12
- 239000007788 liquid Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 8
- 238000013508 migration Methods 0.000 description 7
- 230000005012 migration Effects 0.000 description 7
- 239000010865 sewage Substances 0.000 description 6
- 238000009825 accumulation Methods 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000010802 sludge Substances 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 230000001502 supplementing effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010981 drying operation Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B31/00—Predictive alarm systems characterised by extrapolation or other computation using updated historic data
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/70—Arrangements in the main station, i.e. central controller
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/80—Arrangements in the sub-station, i.e. sensing device
-
- 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
Landscapes
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computing Systems (AREA)
- Computer Networks & Wireless Communication (AREA)
- Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention relates to the technical field of environmental detection, and discloses an air pollution early warning system based on an atmospheric oxidation condition, which comprises a plurality of monitoring stations, a server and an early warning terminal; the monitoring station monitors and stores environmental data of the current station in real time, the monitoring data comprise VOCs concentration parameters and/or meteorological parameters, and when the environmental data of the monitoring station change, a change early warning is sent to an early warning terminal; the server receives environmental data of a plurality of monitoring stations for unified processing, historical environmental data are fitted into an early warning curve, and when the stations monitor that the environmental data are abnormal, the server sends an early warning signal to the early warning terminal. The early warning system provided by the invention is provided with a plurality of monitoring stations which can be arranged in a plurality of different environment areas, and meanwhile, the monitoring stations can also monitor meteorological data, detect conditions such as current wind speed, temperature and humidity, and the like, accurately judge the concentration change of VOCs, and timely send out early warning signals.
Description
Technical Field
The invention relates to the technical field of environmental detection, in particular to an air pollution early warning system based on an atmospheric oxidation condition.
Background
The occurrence of atmospheric pollution events such as photochemical smog events, haze events and the like has a close relationship with atmospheric oxidation, the atmospheric oxidation is mainly reflected on the concentration levels of substances such as O3, OH free radicals, peroxy radicals and the like in the ambient atmosphere, and VOCs play an important role in promoting and inhibiting the generation process of the oxidizing substances. The increase of the concentration level of VOCs breaks the original photochemical equilibrium in the clean atmosphere, and the VOCs can react with free radicals such as OH, RO and the like to generate peroxy radicals such as HO2, RO2 and the like, and cause the accumulation of the concentration of O3, thereby improving the atmospheric oxidation. Generally, the regions with higher concentration levels of VOCs generally have stronger atmospheric oxidizing properties, and are more likely to have atmospheric polluting events.
The existing VOCs monitoring system has few monitoring points, local areas cannot obtain effective monitoring data, and various meteorological data in the environment cannot be combined for reasonable analysis, so that the monitoring system cannot timely and accurately send out early warning signals.
Disclosure of Invention
The invention aims to provide an air pollution early warning system based on an atmospheric oxidation condition, and solves the problem that a monitoring system cannot timely and accurately send out an early warning signal.
In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows: an air pollution early warning system based on atmospheric oxidation conditions comprises a plurality of monitoring stations, a server and an early warning terminal;
the monitoring station monitors and stores environmental data of the current station in real time, the monitoring data comprise VOCs concentration parameters and/or meteorological parameters, and when the environmental data of the monitoring station change, a change early warning is sent to an early warning terminal;
the server receives environmental data of a plurality of monitoring stations for unified processing, historical environmental data are fitted into an early warning curve, and when the stations monitor that the environmental data are abnormal, the server sends an early warning signal to the early warning terminal.
Preferably, the monitoring station includes the frame and installs the monitoring unit in the frame, the monitoring unit includes treater, power module, display module, communication module, VOCs detector, meteorological sensor, display module, VOCs detector, meteorological sensor all link to each other with the treater electrical property, the treater passes through communication module and server, early warning terminal communication interconnection, power module provides working power supply for the monitoring unit.
Preferably, the meteorological sensor comprises one or more of a temperature sensor, a temperature and humidity sensor, an air pressure sensor and a wind speed and direction sensor.
Preferably, power module is including carrying on the solar panel with the frame top, be equipped with the light intensity sensor who is used for examining the light intensity on the solar panel, light intensity sensor sends light intensity signal to treater, be equipped with the adjustment mechanism who is used for adjusting solar panel position and angle in the frame, the treater adjusts solar panel and light according to light intensity signal control adjustment mechanism and keeps perpendicular.
Preferably, the adjusting mechanism comprises a mounting box rotatably connected to the top of the rack, a mounting rod penetrates through the mounting box, the solar panel is connected to the mounting rod, a first driving motor is fixed on the inner wall of the mounting box, a driving gear is connected to a shaft of the first driving motor, and a section of tooth column meshed with the driving gear is arranged at the top of the rack; and a second driving motor for driving the mounting rod to rotate is arranged in the mounting box.
Preferably, a shaft of the second driving motor is connected with a worm, and the mounting rod is provided with a worm wheel meshed with the worm.
Preferably, the monitoring unit further comprises a PM2.5 sampling detector mounted on the rack, and the PM2.5 sampling detector is electrically connected with the processor.
Preferably, the PM2.5 sampling detector comprises a machine body, an air pipe is arranged in the machine body, two ends of the air pipe respectively penetrate through two side walls of the machine body, an air exhaust assembly is arranged on one side surface of the machine body, and one end of the air pipe is communicated with the air exhaust assembly; still be equipped with laser detection mechanism in the organism, the detection light that laser detection mechanism sent radially passes the trachea along the trachea.
Preferably, the number of the air pipes is two, a first partition plate is arranged between the two air pipes and fixed in the machine body, the laser detection mechanisms are provided with two sets, and a pair of pressing plates used for pressing the air pipes on the first partition plate are arranged in the machine body.
Preferably, the laser detection mechanism comprises a laser generator arranged on a first partition plate on one side of the air pipe, a section of transparent pipe is arranged in the middle of the air pipe, and an astigmatism receiver is arranged on the surface of the first partition plate opposite to the transparent pipe; one side of the transparent pipe is connected with a light guide column, a light shading sleeve is arranged outside the light guide column, one end of the light guide column is in contact with the laser generator, the other side of the transparent pipe is communicated with an L-shaped light guide pipe, the light guide pipe is of an opaque structure, and a reflecting mirror surface is arranged at a bent part in the light guide pipe.
The beneficial effects of the invention are concentrated and expressed as follows:
1. the early warning system provided by the invention is provided with a plurality of monitoring stations which can be arranged in a plurality of different environment areas, and meanwhile, the monitoring stations can also monitor meteorological data, detect conditions such as current wind speed, temperature and humidity, and the like, accurately judge the concentration change of VOCs, and timely send out early warning signals.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the early warning system of the present invention;
FIG. 2 is a block circuit diagram of the monitoring station of the present invention;
FIG. 3 is a schematic view of the overall mechanical structure of the monitoring station of the present invention;
FIG. 4 is a schematic view of the internal structure of the adjusting mechanism of the present invention;
FIG. 5 is a cross-sectional view of a PM2.5 sampling detector of the present invention;
FIG. 6 is a cross-sectional view of another perspective of the PM2.5 sampling detector of the present invention;
FIG. 7 is a schematic view of the trachea structure of the present invention;
FIG. 8 is a schematic view of the internal structure of the water tank of the present invention;
FIG. 9 is a schematic view of the air pressure balance structure of the present invention;
FIG. 10 is an enlarged view of portion A of the structure of FIG. 8 in accordance with the present invention;
FIG. 11 is a schematic cross-sectional view of the outer wall of the housing of the present invention;
illustration of the drawings: 1. a body; 2. an air tube; 3. a first separator; 4. pressing a plate; 5. a laser generator; 6. a transparent tube; 7. an astigmatic receiver; 8. a light guide pillar; 9. a light-shielding sleeve; 10. a light pipe; 11. a reflective mirror surface; 12. a frame; 13. a water tank; 14. a water pump; 15. a water inlet pipe; 16. a water return pipe; 17. a second separator; 18. a water return area; 19. a clear water zone; 20. a filter screen; 21. a mesh cage; 22. a water accumulation area; 23. an air pump; 24. an air inlet pipe; 25. a water-proof and breathable film; 26. a heater; 27. a pressure relief pipe; 28. a conduction pipe; 29. a first through hole; 30. an annular groove; 31. a fixing plate; 32. a connecting plate; 33. a spring; 34. an outer box; 35. an inner case; 36. a plate body; 37. a strip-shaped hole; 38. a baffle plate; 39. a display screen; 40. an air extraction assembly; 41. a gas delivery pipe; 42. a water replenishing pipe; 43. a sludge discharge pipe; 44. a dirt suction cover; 45. a second through hole; 46. a third through hole; 47. a sliding sleeve; 48. a floating plate; 49. plugging the sleeve; 50. a solar panel; 51. a light intensity sensor; 52. mounting a box; 53. mounting a rod; 54. a first drive motor; 55. a driving gear; 56. a tooth post; 57. a worm; 58. a worm gear; 59. a connecting rod.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, an air pollution early warning system based on atmospheric oxidative conditions comprises a plurality of monitoring stations, a server and an early warning terminal;
the monitoring station monitors and stores environmental data of a current station in real time, the monitoring data comprise VOCs concentration parameters and/or meteorological parameters, the meteorological parameters comprise conditions such as temperature, humidity, wind speed and direction and air pressure, when the environmental data of the monitoring station change, a change early warning is sent to an early warning terminal, namely when a certain monitoring station monitors that VOCs change, the change early warning terminal can be directly sent to the early warning terminal, the early warning terminal can be a smart phone, a PC (personal computer), a notebook computer, an iPad and other equipment, and a user can clearly know the change condition of VOCs in the surrounding environment;
the server receives environmental data of a plurality of monitoring stations for unified processing, historical environmental data are fitted into an early warning curve, and when the stations monitor that the environmental data are abnormal, the server sends an early warning signal to an early warning terminal; generally speaking, the VOCs are migrated under meteorological conditions, for example, the migration speed and distance of the VOCs can be determined to a great extent by the wind speed in the horizontal and vertical directions, the migration distance of the VOCs is farther the higher the wind speed is, and the sedimentation of the VOCs is affected by factors such as rainfall; the migration of the VOCs can be influenced by the physical and chemical properties of the VOCs, high-activity VOCs can be rapidly lost in the migration process, and low-activity and long-life VOCs can be diffused for a long distance due to slow reaction and even can become substances with regional or global environmental effects; that is to say, after detecting the VOCs at a certain monitoring point, the meteorological conditions of the local area are detected at the same time, the parameters are uploaded to the server, environmental data around the VOCs are received at the same time, the server judges whether the VOCs have the migration risk according to the current meteorological conditions, and if the VOCs have the migration risk and judge the migration distance, an early warning signal is given in advance.
Specifically, as shown in fig. 2, each monitoring station includes a rack 12 and a monitoring unit installed on the rack 12, the monitoring unit includes a processor, a power module, a display module, a communication module, a VOCs detector, and a weather sensor, the display module, the VOCs detector, and the weather sensor are all electrically connected to the processor, the processor is in communication interconnection with a server and an early warning terminal through the communication module, and the power module provides a working power supply for the monitoring unit; the weather sensor comprises one or more of a temperature sensor, a temperature and humidity sensor, an air pressure sensor and a wind speed and direction sensor, the sensors are directly mounted on the rack 12, the display module mainly comprises a display screen 39, and the display screen 39 is mounted on the rack 12 and used for displaying local environment data; the display module may be provided at monitoring stations within the city, while the display module may not be provided at monitoring stations outside the city.
In order to improve the cruising ability of the monitoring station, the power module includes two solar panels 50 mounted on the top of the rack 12, and in this embodiment, the two solar panels 50 are preferably distributed on two sides of the rack 12, as shown in fig. 3-4; the solar panel 50 cannot receive light efficiently due to the influence of the installation position in a partial region; in order to improve the power generation efficiency of the solar panel 50; a light intensity sensor 51 for detecting the intensity of light is arranged on the solar panel 50, the light intensity sensor 51 sends a light intensity signal to the processor, an adjusting mechanism for adjusting the position and the angle of the solar panel 50 is arranged on the frame 12, and the processor controls the adjusting mechanism to adjust the solar panel 50 to be perpendicular to the light according to the light intensity signal; through adjustment mechanism control solar panel 50 all the time with light perpendicular, improve the generating efficiency.
Specifically, the adjusting mechanism comprises a mounting box 52 rotatably connected to the top of the frame 12, a mounting rod 53 penetrates through the mounting box 52, the solar panel 50 is connected to the mounting rod 53, a first driving motor 54 is fixed on the inner wall of the mounting box 52, a driving gear 55 is connected to a shaft of the first driving motor 54, and a section of toothed column 56 meshed with the driving gear 55 is arranged at the top of the frame 12; a second driving motor for driving the mounting rod 53 to rotate is arranged in the mounting box 52; under the control of the first driving motor 54, the solar panel 50 can rotate around the frame 12 to change the position of the solar panel 50, and under the control of the second motor, the inclination angle of the solar panel 50 can be adjusted to ensure that the solar panel 50 has high power generation efficiency.
In this embodiment, a worm 57 is connected to a shaft of the second driving motor, and a worm wheel 58 meshed with the worm 57 is arranged on the mounting rod 53; the worm wheel 58 and worm 57 structure has a self-locking function, and when the second driving motor is not started, the mounting rod 53 cannot rotate, so that the solar panel 50 is ensured to keep the current inclined state.
Furthermore, the monitoring unit further comprises a PM2.5 sampling detector mounted on the rack 12, and the PM2.5 sampling detector is electrically connected with the processor; PM2.5 sampling detector includes organism 1, and PM2.5 sampling detector can set up one or two and carry out synchronous detection in this embodiment, and both carry out the contrast sampling detection, improve the precision of sampling.
In order to avoid that the particles in the air directly contact the laser detection mechanism, as shown in fig. 5-6, an air tube 2 is disposed in the machine body 1, two ends of the air tube 2 respectively penetrate through two side walls of the machine body 1, the air flows through the air tube 2, and does not affect the laser detection mechanism, an air exhaust assembly 40 is disposed on one side surface of the machine body 1, one end of the air tube 2 is communicated with the air exhaust assembly 40, in this embodiment, the air exhaust assembly 40 may be a silent fan, and the air exhaust is performed by using the silent fan, or by using the air pump 23, and after the air exhaust assembly 40 performs stable air exhaust, the laser detection mechanism is started to detect the particles; a laser detection mechanism is further arranged in the machine body 1, and detection light rays emitted by the laser detection mechanism penetrate through the air pipe 2 along the radial direction of the air pipe 2; because of the influence of humidity in the outside air, part of the particles can be attached to the air pipe 2, and when the part of the particles is not cleaned in time, the next sampling can be influenced, and the device further comprises a cleaning mechanism which sequentially inputs cleaning liquid and dry air to the middle part of the air pipe 2; after sampling is finished, starting a cleaning mechanism to introduce cleaning fluid into the air pipe 2, cleaning the air pipe 2 by the cleaning fluid, and introducing dry air to dry the air pipe 2 after cleaning; after the cleaning and drying operation is finished, the air exhaust assembly 40 and the laser detection mechanism can be started again to detect the particles in the air; this mode detects the precision height, can carry out the sampling detection of continuity to the particulate matter, has promoted sampling device's practicality.
In the process of cleaning and drying, the detection operation cannot be performed, in order to not affect the normal detection operation, the number of the air pipes 2 is two, as shown in fig. 5, a first partition plate 3 is arranged between the two air pipes 2, the first partition plate 3 is fixed in the machine body 1, the laser detection mechanism has two sets, and a pair of pressing plates 4 for pressing the air pipes 2 on the first partition plate 3 is arranged in the machine body 1; by arranging the two air pipes 2 and the two sets of laser detection mechanisms, when one air pipe 2 is in cleaning operation, the other air pipe 2 and the corresponding laser detection mechanism can be used for detecting particles in the environment, so that the continuity detection of the particles is ensured; in this embodiment, a set of detection time of the laser detection mechanism may be set, and after a period of detection, the cleaning operation is performed to ensure the sampling accuracy.
Specifically, as shown in fig. 5 and 7, the laser detection mechanism includes a laser generator 5 disposed on a first partition plate 3 on one side of an air tube 2, a section of transparent tube 6 is disposed in the middle of the air tube 2, laser generated by the laser generator 5 is emitted into the air tube 2 from the transparent tube 6, an astigmatic receiver 7 is disposed on a surface of the first partition plate 3 opposite to the transparent tube 6, that is, a plane where the astigmatic receiver 7 is located is perpendicular to a plane where the laser generator 5 is located, the laser is irradiated on particulate matters to generate scattering, the scattered light is emitted onto the astigmatic receiver 7, the size of the particulate matters is calculated according to the intensity of the received light, and the number of the particulate matters is counted; in order to avoid shielding of laser light by particles inside the machine body 1, one side of the transparent tube 6 is connected with a light guide column 8, a light shielding sleeve 9 is arranged outside the light guide column 8, one end of the light guide column 8 is in contact with the laser generator 5, the generated laser is directly injected into the trachea 2 through the light guide column 8, and the light guide column 8 can be a glass column; in order to avoid the laser from being reflected from the other side of the trachea 2, the other side of the transparent tube 6 is communicated with an L-shaped light guide tube 10, the light guide tube 10 is of an opaque structure, a reflecting mirror surface 11 is arranged at a bent part in the light guide tube 10, and the reflecting mirror surface 11 is used for reflecting the laser so that the laser cannot be reflected into the trachea 2 again; since the light guide pipe 10 is located in the middle of the trachea 2, in order to fully utilize the light guide pipe 10, the output end of the cleaning mechanism is communicated with the light guide pipe 10, and cleaning liquid is injected into the trachea 2 through the light guide pipe 10.
As the sampling device is installed in an external environment, cleaning liquid usually only needs water, and water sources cannot be supplemented at any time, as shown in fig. 8-9, the cleaning mechanism comprises a water tank 13 arranged below the machine body 1, the water tank 13 is provided with a water suction pump 14, the water outlet end of the water suction pump 14 is connected with a water inlet pipe 15, one end of the water inlet pipe 15 penetrates through the machine body 1 and is communicated with a light guide pipe 10, a water return pipe 16 is further arranged in the machine body 1, one end of the water return pipe 16 is communicated with the water tank 13, and as the height of the water tank 13 is lower than that of the machine body 1, water after cleaning can automatically flow into the water tank 13 again, so that waste of water sources can be effectively avoided, and the number of times for supplementing water sources is reduced; the cleaning mechanism also comprises an air conveying component for conveying air into the water inlet pipe 15; the alternate cleaning operation of the two air pipes 2 can be controlled by an electromagnetic valve, namely, the water inlet pipe 15 is provided with a three-way pipe at one end, two ends of the three-way pipe are communicated with the light pipe 10, and the electromagnetic valve is directly arranged at two ends of the three-way pipe; in this embodiment, the other end of the water inlet pipe 15, the gas pipe 41 of the gas transmission component, and the water return pipe 16 are all provided with one-way valves, and the pipelines can only be conducted in one way; when the device is used, the water pump 14 is started to pump water out of the water tank 13, then the corresponding air pipe 2 is cleaned, after the cleaning is completed, the water pump 14 is closed, the air transmission assembly is started, the 41 paths of the air transmission pipe of the air transmission assembly also adopt the water inlet pipe 15, and the air pipe 2 is dried.
Because the water source returned by the water return pipe 16 contains particles, in order to ensure that the air pipe 2 can have a clean water source when being cleaned, the water tank 13 is divided into a water return area 18 and a clean water area 19 through a second partition plate 17 arranged in the water tank 13, a filter screen 20 is arranged in the middle of the second partition plate 17, clean water returned into the water tank 13 firstly enters the water return area 18, the clean water is filtered through the filter screen 20 to enable the clean water source to enter the clean water area 19, the water source pumped by the water suction pump 14 is always clean, the air pipe 2 can be cleaned, the water pumping end of the water suction pump 14 is positioned in the clean water area 19, and one end of the water return pipe 16 is communicated with the water return area 18; in order to replenish the water source in the water tank 13, a mesh cover 21 is provided on the top of the water tank 13, and a ponding region 22 is provided in the mesh cover 21, so that in rainy days, rainwater is filtered by the mesh cover 21 and then collected in the ponding region 22, and the ponding region 22 is communicated with the water return region 18, so that the water source can be replenished to the water tank 13.
In the drying operation, the air delivery assembly directly sucks the outside air to dry the air pipe 2 and then causes the particles to be attached to the air pipe 2, so that the cleaning effect cannot be achieved, the air delivery assembly comprises an air pump 23 installed on the side wall of the water tank 13, the output end of the air pump 23 is connected with an air inlet pipe 24, the air inlet pipe 24 is of an L-shaped structure, the vertical section of the air inlet pipe 24 extends into the water return area 18, the water-proof and breathable film 25 is arranged at the upper part of the second partition plate 17, one end of the air delivery pipe 41 penetrates into the clear water area 19 from the top of the water tank 13, therefore, the air sucked by the air pump 23 is firstly cleaned by using the water source in the water return area 18, the particles are absorbed in the water source, the air enters the clear water area 19 through the water-proof and breathable film 25, the water in the air flow is separated under the action of the water-proof air delivery pipe 25, and the air entering the breathable film 41 is ensured to be dry, because the air can also pass through the top of the clean water area 19, in order to avoid the evaporation of the water in the clean water area 19, a water-proof and breathable film 25 is also arranged at the air inlet end of the air conveying pipe 41 to filter the water vapor in the air flow; meanwhile, the water tank 13 is provided with a heater 26 for heating the air pipe 41, and in a climate with a reduced temperature, the introduced air can be heated by the heater 26, so that the drying speed of the air pipe 2 after cleaning is increased.
In the process of ventilation, the water tank 13 needs to be kept in a sealed state, and in the processes of water source supplement and cleaning, the air pressure in the water tank 13 changes, so that the air pressure needs to be balanced; for this reason, in the present embodiment, an air pressure balance structure is provided in the water tank 13, as shown in fig. 9, specifically, the air pressure balance structure includes a pressure relief pipe 27 provided at the top of the water return region 18, the pressure relief pipe 27 is communicated with the water accumulation region 22, conduction pipes 28 are respectively inserted into vertical sections of the pressure relief pipe 27 and the air inlet pipe 24, in the present embodiment, the bottom of the conduction pipe 28 connected to the pressure relief pipe 27 is located above the liquid level in the water return region 18, the bottom of the conduction pipe 28 connected to the air inlet pipe 24 is located below the liquid level in the water return region 18, the top of the conduction pipe 28 is a blind end, the upper portion of the conduction pipe 28 is provided with a first through hole 29, annular grooves 30 are respectively provided on inner walls of the pressure relief pipe 27 and the air inlet pipe 24, the height of the annular groove 30 in the pressure relief pipe 27 is greater than the height of the annular groove 30 in the air inlet pipe 24, in fig. 9, when both conduction pipes 28 are located at the bottommost positions, the first through hole 29 of the conduit 28 on the left side is positioned in the annular groove 30, and the air inlet pipe 24 is communicated with the conduit 28; the first through hole 29 on the conduction pipe 28 on the right side is separated from the annular groove 30, and the conduction pipe 28 on the side is in a blocking state with the pressure relief pipe 27 under the blocking action of the inner wall of the pressure relief pipe 27 on the first through hole 29; when the two conduction pipes 28 are located at the highest position, the left conduction pipe 28 and the air inlet pipe 24 are in a blocking state, and the right conduction pipe 28 and the pressure relief pipe 27 are in a conduction state; and just as the left first through hole 29 moves into the left annular groove 30, the right first through hole 29 has already separated from the right annular groove 30; ensures that the conducting pipe 28 is only conducted with the air inlet pipe 24 or the pressure relief pipe 27 during the process that the two conducting pipes 28 go up or down.
In order to simplify the driving structure between the air inlet pipe 24 and the left conduction pipe 28, the pressure relief pipe 27 and the right conduction pipe 28, a fixing plate 31 is arranged in the water return area 18, the pressure relief pipe 27 and the air inlet pipe 24 are both arranged on the fixing plate 31 in a penetrating manner, a connecting plate 32 is arranged below the fixing plate 31, the two conduction pipes 28 are both fixedly connected with the connecting plate 32, and the connecting plate 32 is connected with the fixing plate 31 through a spring 33; therefore, when the air pump 23 is started, the air pressure in the air inlet pipe 24 is increased, the left conduction pipe 28 is pushed to move downwards, because the two conduction pipes 28 are connected to the connecting plate 32, the right conduction pipe 28 also descends synchronously, after the first air hole on the left conduction pipe 28 descends into the left annular groove 30, the air inlet pipe 24 is communicated with the left conduction pipe 28, the pressure relief pipe 27 and the right conduction pipe 28 are in a blocking state, the water tank 13 is in a sealing state, and air can only be discharged from the air conveying pipe 41. After the air pump 23 stops, air pressure in the air inlet pipe 24 is lost, the two conduction pipes 28 are reset under the action of the spring 33, at the moment, the right conduction pipe 28 is communicated with the pressure relief pipe 27, at the moment, the air pressure of the water tank 13 is balanced, and when the water source in the water tank 13 is reduced or increased, the air pressure in the water tank 13 is the same as the external air pressure; ensuring that the water return area 18 of the water tank 13 can be normally replenished with water.
Meanwhile, when only one pipe of the pressure relief pipe 27 is used, it is inconvenient to supplement water into the water tank 13, that is, the water in the water accumulation area 22 cannot smoothly flow into the water tank 13, and a one-way conducting water supplementing pipe 42 is arranged in the water return area 18, and the water supplementing pipe 42 is communicated with the water accumulation area 22.
In the long-term use process of the water tank 13, precipitates in the backwater area 18 are gradually accumulated and need to be treated regularly, and the water level in the water tank 13 cannot be too high, so that the drying link is influenced after the water level is too high; in this embodiment, as shown in fig. 10, an inverted U-shaped sludge discharge pipe 43 is disposed in the water return area 18, one end of the sludge discharge pipe 43 is located at the bottom of the water return area 18, the other end of the sludge discharge pipe is located outside the water tank 13, one end of the sludge discharge pipe 43 is connected to a sewage suction cover 44, and a plurality of second through holes 45 are disposed on the sewage suction cover 44; the upper portion of the blow off pipe that is located return water district 18 is equipped with third through-hole 46, and the cover is equipped with can be according to the lift of the interior liquid level of return water district 18 and go on the sliding sleeve 47 that goes up and down on the blow off pipe, be equipped with kickboard 48 on the sliding sleeve 47, sliding sleeve is equipped with the shutoff cover 49 that is used for shutoff third through-hole 46 on the mud pipe 43 that is located third through-hole 46 top, shutoff cover 49 links to each other with connecting plate 32 through connecting rod 59. When in use, for example, a water source is supplemented into the water tank 13 in rainy season, or workers actively add water into the water tank 13; therefore, the liquid level in the water tank 13 rises, the floating plate 48 can drive the sliding sleeve 47 to slide upwards on the sewage discharge pipe under the action of buoyancy, when the sliding sleeve 47 is contacted with the plugging sleeve 49, the third through hole 46 is plugged by the sliding sleeve 47 at the moment, and the liquid level in the sewage discharge pipe is as high as the liquid level in the water tank 13; the water level continues rising, when the water level exceeds the inside of the sewage discharge pipe, the water in the sewage discharge pipe flows into a pipeline positioned outside the water tank 13, and at the moment, a siphon effect is formed to automatically suck out the sediment at the bottom; at the in-process of drainage, when the water level in the water tank 13 reduced gradually, kickboard 48 can be along with the water level decline, after third through hole 46 exposes sliding sleeve 47 outward, the blow off pipe in the water tank 13 outside is linked together with the inside air of water tank 13, lose the siphon effect this moment, can not initiative suction deposit again, the liquid level keeps the below at third through hole 46 this moment, this structure can ensure that the liquid level in the water tank 13 can not be too high, can also initiatively discharge deposit in the water tank 13, the practicality of blowdown structure has been improved. In the process that the air pump 23 ventilates the water tank 13, the plugging sleeve 49 synchronously moves downwards along with the connecting plate 32, so that the third vent hole 46 can be plugged, the sealing state of the water tank 13 is ensured, and air can be introduced into the air pipe 2; and after the connecting plate 32 is restored by the spring 34, the blocking plate 49 is moved upward and separated from the third venting hole 46.
In order to reduce the influence of wind speed on the detection of particulate matter, as shown in fig. 11, the body 1 includes an outer case 34 and an inner case 35 disposed inside the outer case 34, and a gap is provided between the inner wall of the outer case 34 and the outer wall of the inner case 35; the outer box 34 is of a table-shaped structure, the side surface of the outer box 34 is an arc surface, a wave-shaped plate body 36 is arranged on the side wall of the outer box 34, and the concave part of the plate body 36 extends along the inclined direction of the plate body 36; a strip-shaped hole 37 is formed in the protruding portion of the plate body 36, and a baffle 38 which is used for shielding the strip-shaped hole 37 and is of an arc structure is arranged on the outer side of the protruding portion of the plate body 36; therefore, the outside air is blown into the machine body 1 again, and the cambered surface and the wave-shaped plate body 36 are arranged, so that the wind can be guided to a certain degree, the situation that excessive air flow interference does not exist in the outer box 34 is ensured, and the particle detection accuracy is improved.
It should be noted that, for simplicity of description, the above-mentioned embodiments of the method are described as a series of acts or combinations, but those skilled in the art should understand that the present application is not limited by the order of acts described, as some steps may be performed in other orders or simultaneously according to the present application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and elements referred to are not necessarily required in this application.
Claims (10)
1. The utility model provides an air pollution early warning system based on atmospheric oxidation nature condition which characterized in that: the system comprises a plurality of monitoring stations, a server and an early warning terminal;
the monitoring station monitors and stores environmental data of the current station in real time, the environmental data comprise VOCs concentration parameters and/or meteorological parameters, and when the environmental data of the monitoring station change, a change early warning is sent to the early warning terminal;
the server receives environmental data of a plurality of monitoring stations for unified processing, historical environmental data are fitted into an early warning curve, and when the stations monitor that the environmental data are abnormal, the server sends an early warning signal to the early warning terminal.
2. The air pollution early warning system based on atmospheric oxidative conditions as claimed in claim 1, wherein: the monitoring station includes frame (12) and installs the monitoring unit in frame (12), the monitoring unit includes treater, power module, display module, communication module, VOCs detector, meteorological sensor, display module, VOCs detector, meteorological sensor all link to each other with the treater electrical property, the treater passes through communication module and server, early warning terminal communication interconnection, power module provides working power supply for the monitoring unit.
3. The air pollution early warning system based on atmospheric oxidative conditions as claimed in claim 2, wherein: the meteorological sensor comprises one or more of a temperature sensor, a temperature and humidity sensor, an air pressure sensor and a wind speed and direction sensor.
4. The air pollution early warning system based on atmospheric oxidative conditions as claimed in claim 2, wherein: the power module is including carrying on solar panel (50) with frame (12) top, be equipped with on solar panel (50) and be used for examining light intensity sensor (51), light intensity sensor (51) send the light intensity signal to the treater, be equipped with the adjustment mechanism who is used for adjusting solar panel (50) position and angle on frame (12), the treater is according to light intensity signal control adjustment mechanism regulation solar panel (50) and light keep perpendicular.
5. The air pollution early warning system based on atmospheric oxidative conditions as claimed in claim 4, wherein: the adjusting mechanism comprises a mounting box (52) which is rotatably connected to the top of the rack (12), a mounting rod (53) penetrates through the mounting box (52), the solar panel (50) is connected to the mounting rod (53), a first driving motor (54) is fixed on the inner wall of the mounting box (52), a driving gear (55) is connected to the shaft of the first driving motor (54), and a section of tooth column (56) meshed with the driving gear (55) is arranged on the top of the rack (12); and a second driving motor for driving the mounting rod (53) to rotate is arranged in the mounting box (52).
6. The air pollution early warning system based on atmospheric oxidative conditions as claimed in claim 5, wherein: a worm (57) is connected to the shaft of the second driving motor, and a worm wheel (58) meshed with the worm (57) is arranged on the mounting rod (53).
7. The air pollution early warning system based on atmospheric oxidative conditions as claimed in claim 2, wherein: the monitoring unit further comprises a PM2.5 sampling detector mounted on the rack (12), and the PM2.5 sampling detector is electrically connected with the processor.
8. The air pollution early warning system based on atmospheric oxidative conditions as claimed in claim 2, wherein: the PM2.5 sampling detector comprises a machine body (1), wherein an air pipe (2) is arranged in the machine body (1), two ends of the air pipe (2) respectively penetrate through two side walls of the machine body (1), an air exhaust assembly (40) is arranged on one side surface of the machine body (1), and one end of the air pipe (2) is communicated with the air exhaust assembly (40); still be equipped with laser detection mechanism in organism (1), the detection light that laser detection mechanism sent radially passes trachea (2) along trachea (2).
9. The air pollution early warning system based on atmospheric oxidative conditions as claimed in claim 8, wherein: trachea (2) have two, are equipped with first baffle (3) between two trachea (2), first baffle (3) are fixed in organism (1), laser detection mechanism has two sets, be equipped with a pair of clamp plate (4) that are used for compressing tightly trachea (2) on first baffle (3) in organism (1).
10. An air pollution early warning system based on atmospheric oxidising conditions as claimed in claim 8 or 9, wherein: the laser detection mechanism comprises a laser generator (5) arranged on a first partition plate (3) on one side of an air pipe (2), a section of transparent pipe (6) is arranged in the middle of the air pipe (2), and an astigmatism receiver (7) is arranged on the surface of the first partition plate (3) opposite to the transparent pipe (6); one side of hyaline tube (6) is connected with leaded light post (8), leaded light post (8) has shading cover (9) outward, the one end and the laser generator (5) contact of leaded light post (8), the opposite side intercommunication of hyaline tube (6) has leaded light pipe (10) that is L shape, leaded light pipe (10) are opaque structure, kink department in leaded light pipe (10) is equipped with reflection of light mirror surface (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210502921.2A CN114863646B (en) | 2022-05-09 | 2022-05-09 | Air pollution early warning system based on atmospheric oxidizing conditions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210502921.2A CN114863646B (en) | 2022-05-09 | 2022-05-09 | Air pollution early warning system based on atmospheric oxidizing conditions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114863646A true CN114863646A (en) | 2022-08-05 |
| CN114863646B CN114863646B (en) | 2024-04-16 |
Family
ID=82636827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210502921.2A Active CN114863646B (en) | 2022-05-09 | 2022-05-09 | Air pollution early warning system based on atmospheric oxidizing conditions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114863646B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115586311A (en) * | 2022-12-12 | 2023-01-10 | 河北凯泰科技有限公司 | On-line monitoring system for volatile organic compounds in ambient air |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106383205A (en) * | 2016-10-13 | 2017-02-08 | 北京伟瑞迪科技有限公司 | VOCs (Volatile Organic Compounds) region on-line monitoring and early warning system |
| CN106546280A (en) * | 2015-09-16 | 2017-03-29 | 普天信息技术有限公司 | Portable traffic environment air-quality monitoring system |
| CN108303132A (en) * | 2017-01-13 | 2018-07-20 | 北京克林尔环保科技有限公司 | A kind of monitoring system for air pollution |
| US20190113445A1 (en) * | 2017-10-16 | 2019-04-18 | Weimin Zhang | Air pollution monitoring system and air pollution monitoring method |
| CN110514237A (en) * | 2019-10-07 | 2019-11-29 | 南京白云环境科技集团股份有限公司 | A kind of surrounding air real-time monitoring system |
| CN111307682A (en) * | 2020-03-16 | 2020-06-19 | 陕西环研环保产品检验有限公司 | Catering industry oil smoke detection equipment and detection method |
| CN112283913A (en) * | 2020-10-13 | 2021-01-29 | 安徽全方环境科技有限公司 | Ozone pollutant monitoring and treating device for atmospheric environment |
| CN112619231A (en) * | 2020-11-25 | 2021-04-09 | 何光芹 | New forms of energy dust collecting equipment |
| CN112964312A (en) * | 2021-04-26 | 2021-06-15 | 博天环境集团股份有限公司 | Pollutant monitoring system |
| CN213611302U (en) * | 2020-10-30 | 2021-07-06 | 浙江解氏新材料股份有限公司 | Reaction kettle for chemically removing contained nitric oxide and nitrogen dioxide through m-difluorobenzene |
| CN113566168A (en) * | 2021-09-24 | 2021-10-29 | 深圳亿同电子科技有限公司 | LED lighting equipment based on solar power generation |
| CN215138301U (en) * | 2021-07-12 | 2021-12-14 | 江苏永昊净化科技有限公司 | Middle-effect air filtering device for dust-free room |
-
2022
- 2022-05-09 CN CN202210502921.2A patent/CN114863646B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106546280A (en) * | 2015-09-16 | 2017-03-29 | 普天信息技术有限公司 | Portable traffic environment air-quality monitoring system |
| CN106383205A (en) * | 2016-10-13 | 2017-02-08 | 北京伟瑞迪科技有限公司 | VOCs (Volatile Organic Compounds) region on-line monitoring and early warning system |
| CN108303132A (en) * | 2017-01-13 | 2018-07-20 | 北京克林尔环保科技有限公司 | A kind of monitoring system for air pollution |
| US20190113445A1 (en) * | 2017-10-16 | 2019-04-18 | Weimin Zhang | Air pollution monitoring system and air pollution monitoring method |
| CN110514237A (en) * | 2019-10-07 | 2019-11-29 | 南京白云环境科技集团股份有限公司 | A kind of surrounding air real-time monitoring system |
| CN111307682A (en) * | 2020-03-16 | 2020-06-19 | 陕西环研环保产品检验有限公司 | Catering industry oil smoke detection equipment and detection method |
| CN112283913A (en) * | 2020-10-13 | 2021-01-29 | 安徽全方环境科技有限公司 | Ozone pollutant monitoring and treating device for atmospheric environment |
| CN213611302U (en) * | 2020-10-30 | 2021-07-06 | 浙江解氏新材料股份有限公司 | Reaction kettle for chemically removing contained nitric oxide and nitrogen dioxide through m-difluorobenzene |
| CN112619231A (en) * | 2020-11-25 | 2021-04-09 | 何光芹 | New forms of energy dust collecting equipment |
| CN112964312A (en) * | 2021-04-26 | 2021-06-15 | 博天环境集团股份有限公司 | Pollutant monitoring system |
| CN215138301U (en) * | 2021-07-12 | 2021-12-14 | 江苏永昊净化科技有限公司 | Middle-effect air filtering device for dust-free room |
| CN113566168A (en) * | 2021-09-24 | 2021-10-29 | 深圳亿同电子科技有限公司 | LED lighting equipment based on solar power generation |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115586311A (en) * | 2022-12-12 | 2023-01-10 | 河北凯泰科技有限公司 | On-line monitoring system for volatile organic compounds in ambient air |
| CN115586311B (en) * | 2022-12-12 | 2023-03-10 | 河北凯泰科技有限公司 | On-line monitoring system for volatile organic compounds in ambient air |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114863646B (en) | 2024-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114863646A (en) | Air pollution early warning system based on atmospheric oxidation condition | |
| CN210071762U (en) | Vehicle and air detection equipment with water-gas separation device thereof | |
| KR101351825B1 (en) | Mass transit stop shelter providing rain water and method for operating the same | |
| CN1777798A (en) | System enabling remote analysis of fluids. | |
| KR101644515B1 (en) | Automatically controlled clean rainwater collecting system that can be self-generated by solar module and easily exclude initial rainwater | |
| CN104655536A (en) | On-line oil smoke detection system and online oil smoke concentration detection method | |
| CN211233260U (en) | Filter screen dust accumulation detection device and air conditioner | |
| CN111707632A (en) | Online total phosphorus, ammonia nitrogen, COD quality of water automatic monitoring device | |
| CN110749716A (en) | River course quality of water on-line monitoring device | |
| CN114791377B (en) | PM2.5 sampling device and sampling method in ambient air | |
| CN212340312U (en) | Environmental monitoring warning suggestion device | |
| CN212544249U (en) | Dehumidification watertight fittings in regulator cubicle | |
| KR100964470B1 (en) | Heating and hot water supply system using sunlight tracing type evacuated tube solar collector for veranda parapet | |
| CN209279223U (en) | A kind of noiseless smoke exhaust ventilator in interior | |
| CN210602137U (en) | Novel lighting and ventilating system for underground building | |
| CN215446780U (en) | Intelligent indoor harmful pollutant cleaner | |
| CN212845042U (en) | Low turbidity sensor based on light source complementary operation | |
| CN207812635U (en) | A kind of anti-smell-back device based on life special sewage disposal | |
| CN216117333U (en) | Initial rain discarding device based on fluorescence analysis method | |
| CN210625737U (en) | Miniature water quality automatic monitoring station | |
| CN211148624U (en) | River course quality of water on-line monitoring device | |
| CN114018775B (en) | Online monitoring device for oil smoke particle mass concentration | |
| CN213780066U (en) | Water quality monitoring box with water body image recognition function | |
| CN220474124U (en) | Wireless detector | |
| CN221038952U (en) | Device for detecting content of CO in flue gas |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |