CN116338091B - Atmospheric pollution monitoring traceability system based on passive infrared telemetry - Google Patents
Atmospheric pollution monitoring traceability system based on passive infrared telemetry Download PDFInfo
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- CN116338091B CN116338091B CN202310199785.9A CN202310199785A CN116338091B CN 116338091 B CN116338091 B CN 116338091B CN 202310199785 A CN202310199785 A CN 202310199785A CN 116338091 B CN116338091 B CN 116338091B
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 34
- 238000005070 sampling Methods 0.000 claims abstract description 104
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 43
- 239000000428 dust Substances 0.000 claims description 27
- 238000009825 accumulation Methods 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 15
- 230000000149 penetrating effect Effects 0.000 claims description 11
- 238000013461 design Methods 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 abstract description 13
- 238000005516 engineering process Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 241000883990 Flabellum Species 0.000 abstract description 2
- 238000003915 air pollution Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 45
- 239000012855 volatile organic compound Substances 0.000 description 42
- 239000003344 environmental pollutant Substances 0.000 description 7
- 231100000719 pollutant Toxicity 0.000 description 7
- 230000009471 action Effects 0.000 description 5
- 239000007787 solid Substances 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 231100000331 toxic Toxicity 0.000 description 3
- 230000002588 toxic effect Effects 0.000 description 3
- 208000034699 Vitreous floaters Diseases 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004451 qualitative analysis Methods 0.000 description 2
- 238000004445 quantitative analysis Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
- G01N1/2205—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling with filters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention belongs to the technical field of gas pollution monitoring, in particular to an air pollution monitoring traceability system based on a passive infrared telemetry technology. When detecting the air of different space heights, through the electronic telescopic link of extension to carry out the lifting to the collection height of first sampling pipe, thereby satisfy different space height's monitoring demand, in addition, through being equipped with a guiding device, when the equipment car is advanced, first wind vane can drive the sleeve and rotate, and make its air inlet and the advancing direction of equipment car relative, thereby make the air can enter into the sleeve inside under kuppe, baffle and flabellum's cooperation effect fast, improve ozone and VOCS integral type monitor's detection efficiency.
Description
Technical Field
The invention belongs to the technical field of gas pollution monitoring, and particularly relates to an atmospheric pollution monitoring traceability system based on a passive infrared telemetry technology.
Background
Along with the continuous progress of industrial development, ozone pollution problems are gradually highlighted, and particularly various chemical industry parks and industrial gathering areas become important fixed emission sources of atmospheric gaseous pollutants, but the chemical industry parks have the problems of unclear pollution base, unorganized emission components of enterprises and the like, so that the demands of movable atmospheric pollution gas monitoring systems are becoming obvious. In order to realize the monitoring of the odor pollution source, the VOCS odor pollution tracing technology is generally adopted to calibrate the pollution source. The VOCS odor pollution tracing technology is a comprehensive application of pollutant concentration monitoring results, and the principle is that the monitoring results of point monitoring or line monitoring equipment are utilized, the probability distribution of pollutants in space is calculated by combining wind direction data, or a proper route planning is utilized, and the measuring position is moved to achieve the purpose of calibrating the position of a pollution source.
The existing pollutant monitoring mainly comprises three modes of single-point monitoring, multi-point networking monitoring of a plurality of devices and mobile monitoring of a single set of devices. Wherein the single equipment mobile monitoring is to install the monitoring equipment such as ozone and VOCS integrated monitor and dust accumulation load monitor on the equipment vehicle for use. For example, in a chinese patent with publication number CN210775409U, a vehicle-mounted navigation tracing monitoring system is proposed, which includes an ozone and VOCS integrated monitor disposed on a mobile monitoring vehicle, and can directly monitor ozone and Volatile Organic Compounds (VOCS) in the atmosphere on line, and perform qualitative and quantitative analysis on the types and hazard levels of toxic and harmful gases and peculiar smell characteristic pollutants, and meanwhile, through an additionally mounted dust-collecting load monitor, the distribution condition of dust concentration on a road can be analyzed and monitored, thereby being beneficial to the development of important sanitation work.
Although the above patent realizes on-line monitoring of ozone and Volatile Organic Compounds (VOCS) in the atmosphere to a certain extent and qualitative and quantitative analysis of the types of toxic and harmful gases and peculiar smell characteristic pollutants, the hazard degree still has the following defects:
firstly, the height of a first sampling tube for sampling is not adjustable, so that the first sampling tube is inconvenient to sample and detect gases with different heights;
secondly, because the length of first sampling pipe is longer, and the suction that ozone and VOCS integral type monitor produced is limited to lead to harmful gas in the air to be unable fine by first sampling pipe collection, and then influence ozone and VOCS integral type monitor's detection efficiency.
Therefore, it is necessary to invent an air pollution monitoring traceability system based on passive infrared telemetry to solve the above problems.
Disclosure of Invention
The invention provides an atmosphere pollution monitoring traceability system based on a passive infrared telemetry technology to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an atmospheric pollution monitoring traceability system based on passive infrared telemetry, includes the equipment car, the top level of equipment car is equipped with the backup pad, a plurality of electric telescopic handle of vertical fixedly connected with between bottom and the equipment car of backup pad, the jack has been seted up in the backup pad in the run-through, it has first sampling pipe to peg graft in the jack, the top of first sampling pipe is provided with first guiding device, the bottom of first sampling pipe is connected with the second sampling pipe, and the second sampling pipe corresponds the position run through on the equipment car and has seted up the through-hole, peg graft in the through-hole in the bottom of second sampling pipe, and the bottom of second sampling pipe is provided with second guiding device, the homonymy of first sampling pipe and second sampling pipe is equipped with ozone and VOCS integral type monitor and laying dust load monitor respectively, and is connected with first connecting pipe and second between first sampling pipe and ozone and VOCS integral type monitor, the laying dust load monitor respectively, one side of laying dust load monitor is equipped with the server, and service protection casing and service integral type monitor and CS integral type monitor, the top of being connected with the top of laying dust load monitor.
Further, the first sampling pipe includes fixed pipe and movable pipe, the movable pipe slides and cup joints at the top of fixed pipe, and the fixed locating plate that cup joints of the position that the movable pipe is close to the bottom, the detachable joint of locating plate is in the jack, the diameter that the first sampling pipe is close to the position on top reduces gradually from bottom to top, the top of second sampling pipe is airtight design, and the periphery of second sampling pipe cup joints spacing pipe, the top fixed connection of spacing pipe and equipment car, be provided with first spacing ring on the spacing pipe inner wall, the top of first spacing ring is equipped with the second spacing ring, the second spacing ring is fixed to be cup jointed on the second sampling pipe, and the external diameter of second spacing ring is greater than the internal diameter of first spacing ring.
Further, the first guiding device comprises a sleeve, the sleeve rotates and cup joints at the top of movable tube, the air inlet has been seted up in running through in telescopic one side, and the upper edge of air inlet is less than the open top of first sampling tube, perpendicular fixedly connected with first wind vane on the outer wall of air inlet one side is kept away from to the sleeve, telescopic top rotates and runs through and peg graft there is first pivot, the top of first pivot is connected with the wind cup, peg graft in first sampling tube in the bottom of first pivot, and first pivot is located the surface mounting of first sampling tube and has the flabellum, the position that first pivot is close to the bottom rotates and cup joints first solid fixed ring, and fixedly connected with first dead lever between the inner wall of first solid fixed ring and first sampling tube.
Further, second guiding device includes the funnel cover, the axle center department of funnel cover runs through and peg graft there is the second pivot, the top of second pivot is pegged graft in the second sampling pipe, and the position that the second pivot is close to the top rotates and cup joints the second solid fixed ring, and fixedly connected with second dead lever between the inner wall of second solid fixed ring and second sampling pipe, the bottom edge position fixedly connected with bounding wall of funnel cover, the bounding wall is non-closed loop structure, and the top edge rotation of bounding wall cup joints the bottom at the second sampling pipe, one side that the bounding wall kept away from its open-ended is equipped with the second wind vane, and the perpendicular fixed connection of second wind vane and bounding wall outer wall.
Further, the bottom of first pivot is equipped with columniform gas storage pipe, the lateral wall of gas storage pipe and the inner wall fixed connection of first sampling pipe, and the top and the bottom of gas storage pipe run through respectively and have seted up first connecting hole and second connecting hole, the top center department rotation of gas storage pipe runs through and has pegged graft the connecting axle, the position that the connecting axle is close to the bottom is reciprocating screw design, and the partial screw thread of connecting axle has cup jointed the axle sleeve, the outer rotation of axle sleeve has cup jointed the closing plate, and the side of closing plate is laminated with the inner wall of gas storage pipe, run through on the closing plate and peg graft spacing post, the both ends of spacing post respectively with the top and the perpendicular fixed connection of bottom inner wall of gas storage pipe, run through on the bottom inner wall of gas storage pipe and peg graft the air duct, the air duct top corresponds run through on the closing plate and have seted up the round hole.
Further, the position that first sampling pipe is close to the top rotates and cup joints annular filter screen, the external diameter and the telescopic inner wall fixed connection of filter screen, and the bottom of filter screen flushes with the upper edge of air inlet.
Further, the outside of sleeve has cup jointed the kuppe, the diameter of kuppe top-down increases gradually, and the top edge of kuppe flushes with the lower edge of air inlet, fixedly connected with two baffles on the kuppe, and two baffles are located the both sides position of air inlet respectively.
Further, the bottom diameter of the funnel cover is larger than the bottom diameter of the second sampling tube, and the funnel cover is not contacted with the bottom of the second sampling tube.
Further, the distance between the top of the air duct and the inner wall of the top of the air duct is larger than the thickness of the sealing plate, and the diameter of the air duct is matched with the diameter of the round hole.
The invention has the technical effects and advantages that:
1. when detecting the air with different space heights, the electric telescopic rod is extended, so that the collection height of the first sampling tube is lifted, and the monitoring requirements of the different space heights are met;
2. according to the invention, the gas storage tube is arranged, when gas enters the first sampling tube, the reciprocating screw rod part on the connecting shaft can drive the sealing plate to move up and down along with the rotation of the connecting shaft, when the sealing plate moves downwards, the sealing plate gradually approaches the gas storage tube, and when the gas storage tube is inserted into the round hole, the ozone and VOCS integrated monitor can continue to perform the gas suction operation through the gas storage tube, but the air flow entering the bottom space of the gas storage tube is reduced along with the reduction of the gas inlet, so that the purposes of stabilizing and reducing the air flow rate are achieved, and the stability of the ozone and VOCS integrated monitor during detection is ensured.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a first perspective view of the present invention;
FIG. 2 is a second perspective view of the present invention;
FIG. 3 is a schematic perspective view of the roof structure of the apparatus of the present invention;
FIG. 4 is a schematic perspective view of a first deflector according to the present invention;
FIG. 5 is an enlarged view of portion A of FIG. 4 in accordance with the present invention;
FIG. 6 is a schematic perspective view of a second deflector according to the present invention;
fig. 7 is a perspective cross-sectional view of a gas storage tube in accordance with the present invention.
In the figure: 1. equipment vehicle; 2. a support plate; 3. an electric telescopic rod; 4. a first sampling tube; 41. a fixed tube; 42. a movable tube; 5. a first deflector; 51. a sleeve; 52. a first wind deflector; 53. a first rotating shaft; 54. a wind cup; 55. a fan blade; 56. a first fixing rod; 6. a second sampling tube; 7. a second flow guiding device; 71. a funnel cover; 72. a second rotating shaft; 73. a second fixing rod; 74. coaming plate; 75. a second wind deflector; 8. ozone and VOCS integrated monitor; 9. a dust load monitor; 10. a first connection pipe; 11. a second connection pipe; 12. a server; 13. a protective cover; 14. a positioning plate; 15. a limiting tube; 16. a first stop collar; 17. a second limiting ring; 18. a gas storage tube; 19. a connecting shaft; 20. a shaft sleeve; 21. a sealing plate; 22. a limit column; 23. an air duct; 24. a round hole; 25. a filter screen; 26. a guide cover; 27. and a baffle.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides an atmospheric pollution monitoring and tracing system based on passive infrared telemetry, as shown in figures 1 to 7, which comprises a device car 1, wherein the top of the device car 1 is horizontally provided with a supporting plate 2, a plurality of electric telescopic rods 3 are vertically and fixedly connected between the bottom of the supporting plate 2 and the device car 1, a jack is penetrated and arranged on the supporting plate 2, a first sampling tube 4 is inserted into the jack, the top end of the first sampling tube 4 is provided with a first flow guiding device 5, the bottom of the first sampling tube 4 is connected with a second sampling tube 6, a through hole is penetrated and arranged on the device car 1 at the position corresponding to the second sampling tube 6, the bottom of the second sampling tube 6 is inserted into the through hole, the bottom of the second sampling tube 6 is provided with a second flow guiding device 7, the same sides of the first sampling tube 4 and the second sampling tube 6 are respectively provided with an ozone and VOCS integrated monitor 8 and a dust accumulation load monitor 9, the ozone and VOCS integrated monitor 8 and the dust accumulation load monitor 9 are provided with active suction pumps, a first connecting pipe 10 and a second connecting pipe 11 are respectively connected between the first sampling pipe 4 and the second sampling pipe 6 and the ozone and VOCS integrated monitor 8 and between the first sampling pipe and the dust accumulation load monitor 9, a server 12 is arranged on one side of the dust accumulation load monitor 9, a data analysis software system comprising data acquisition software, analysis software and remote login software, a computer, data preprocessing software and the like are embedded in the server 12, the server 12 is connected with the ozone and VOCS integrated monitor 8 and the dust accumulation load monitor 9 at the same time, a protective cover 13 is covered on the top of the equipment vehicle 1, and the top end of the first sampling pipe 4 is inserted into the top of the protective cover 13 in a penetrating manner;
the first sampling tube 4 comprises a fixed tube 41 and a movable tube 42, the movable tube 42 is in sliding sleeve connection with the top of the fixed tube 41, a positioning plate 14 is fixedly sleeved at the position, close to the bottom end, of the movable tube 42, the positioning plate 14 is detachably clamped in an inserting hole, the diameter of the position, close to the top end, of the first sampling tube 4 is gradually reduced from bottom to top, the top of the second sampling tube 6 is of a closed design, the periphery of the second sampling tube 6 is sleeved with a limiting tube 15, the limiting tube 15 is fixedly connected with the top of the equipment vehicle 1, a first limiting ring 16 is arranged on the inner wall of the limiting tube 15, a second limiting ring 17 is arranged at the top of the first limiting ring 16, the second limiting ring 17 is fixedly sleeved on the second sampling tube 6, and the outer diameter of the second limiting ring 17 is larger than the inner diameter of the first limiting ring 16;
when the air is monitored, the equipment vehicle 1 is kept in a moving state, then the ozone and VOCS integrated monitor 8 and the dust accumulation load monitor 9 are started, so that the outside air can enter the ozone and VOCS integrated monitor 8 and the dust accumulation load monitor 9 respectively through the first sampling pipe 4 and the second sampling pipe 6 under the action of an air suction pump in the ozone and VOCS integrated monitor 8 and the dust accumulation load monitor 9, then the ozone and VOCS integrated monitor 8 can quantitatively analyze the types and the hazard degrees of toxic and harmful gases and peculiar smell characteristic pollutants in the environment by matching with analysis software in the server 12, and the dust accumulation load monitor 9 can analyze the distribution condition of dust raising concentration in the environment by matching with analysis software in the server 12, thereby being beneficial to the development of important environmental sanitation work;
because of the difference of the distribution conditions of the harmful gases in different space heights, when the air in different space heights needs to be monitored, the electric telescopic rod 3 can be started to drive the supporting plate 2 to move upwards, the supporting plate 2 can drive the positioning plate 14 to move upwards along with the upward movement of the supporting plate 2, and the movable pipe 42 can gradually move upwards along with the upward movement of the positioning plate 14, so that the collection height of the first sampling pipe 4 to the air is improved, and the monitoring requirements of different space heights are met;
in addition, through being equipped with first guiding device 5 and second guiding device 7, when equipment car 1 is moving, the air inlet direction of first guiding device 5 and second guiding device 7 can remain relative with the advancing direction of equipment car 1 all the time to improve the velocity of flow that outside air got into first sampling tube 4, and then guarantee ozone and VOCS integral type monitor 8's detection efficiency.
As shown in fig. 1 to 5, the first flow guiding device 5 includes a sleeve 51, the sleeve 51 is rotatably sleeved at the top of the movable tube 42, one side of the sleeve 51 is provided with an air inlet in a penetrating way, the upper edge of the air inlet is lower than the top opening of the first sampling tube 4, a first wind direction plate 52 is vertically and fixedly connected to the outer wall of one side of the sleeve 51 far away from the air inlet, the top of the sleeve 51 is rotatably sleeved with a first rotating shaft 53, the top of the first rotating shaft 53 is connected with a wind cup 54, the bottom of the first rotating shaft 53 is sleeved in the first sampling tube 4, the surface of the first rotating shaft 53 positioned in the first sampling tube 4 is provided with a fan blade 55, the position of the first rotating shaft 53 close to the bottom is rotatably sleeved with a first fixing ring, a first fixing rod 56 is fixedly connected between the first fixing ring and the inner wall of the first sampling tube 4, the outer side of the sleeve 51 is sleeved with a flow guiding cover 26, the top edge of the flow guiding cover 26 and the lower edge of the air inlet from top to bottom of the flow guiding cover 26 are gradually increased, two baffles 27 are fixedly connected to the flow guiding cover 26, and the two baffles 27 are positioned at two sides of the air inlet respectively;
when air in a higher space needs to be monitored, the whole length of the first sampling tube 4 is increased along with the rising of the movable tube 42, and at the moment, because the suction force of the ozone and VOCS integrated monitor 8 is limited, the outside air cannot enter the ozone and VOCS integrated monitor 8 through the first sampling tube 4 quickly, so that the detection efficiency is affected;
at this time, by arranging the sleeve 51 at the top of the movable tube 42, when the equipment vehicle 1 advances, the first wind direction plate 52 receives the effect of the air flow, so as to drive the sleeve 51 to rotate and finally locate in the opposite direction of the advancing direction of the equipment vehicle 1, so that the air inlet of the sleeve 51 can be opposite to the advancing direction of the equipment vehicle 1, and along with the movement of the equipment vehicle 1, the air can quickly enter the sleeve 51 through the air inlet under the guiding effect of the air guide cover 26 and the baffle 27, and then the air flow entering the sleeve 51 can enter the movable tube 42 through the top opening of the movable tube 42 and finally enter the ozone and VOCS integrated monitor 8 for detection, thereby improving the detection efficiency of the ozone and VOCS integrated monitor 8;
in addition, in the motion process of the equipment vehicle 1, the air flow can also push the wind cup 54 to rotate, and along with the rotation of the wind cup 54, the first rotating shaft 53 can drive the fan blade 55 to rotate under the action of the wind cup 54, so that the air entering the movable pipe 42 through the air inlet can flow downwards and rapidly under the blowing of the fan blade 55, the speed of the air entering the first sampling pipe 4 is further improved, and the detection efficiency of the ozone and VOCS integrated monitor 8 is further improved.
As shown in fig. 6, the second diversion device 7 includes a funnel cover 71, a second rotating shaft 72 is inserted and connected at the axial center of the funnel cover 71, the top end of the second rotating shaft 72 is inserted and connected in the second sampling tube 6, a second fixing ring is rotatably sleeved at the position of the second rotating shaft 72 close to the top, a second fixing rod 73 is fixedly connected between the second fixing ring and the inner wall of the second sampling tube 6, a surrounding plate 74 is fixedly connected at the bottom edge of the funnel cover 71, the surrounding plate 74 is in a non-closed-loop structure, the top edge of the surrounding plate 74 is rotatably sleeved at the bottom of the second sampling tube 6, a second wind direction plate 75 is arranged at one side of the surrounding plate 74 far from the opening, and is vertically and fixedly connected with the outer wall of the surrounding plate 74, the bottom diameter of the funnel cover 71 is larger than the bottom diameter of the second sampling tube 6, and the funnel cover 71 is not contacted with the bottom of the second sampling tube 6;
in the process of moving the equipment vehicle 1, the second wind direction plate 75 is acted by the airflow, so that the funnel cover 71 is driven to rotate and is finally located in the opposite direction of the advancing direction of the equipment vehicle 1, and at the moment, the opening direction of the enclosing plate 74 is kept consistent with the advancing direction of the equipment vehicle 1, so that the airflow can enter the second sampling tube 6 more quickly under the guiding action of the funnel cover 71 and the cooperation of the enclosing plate 74 along with the advancing of the equipment vehicle 1, and the detection efficiency of the dust accumulation load monitor 9 is improved.
As shown in fig. 5 and 7, a cylindrical gas storage tube 18 is arranged at the bottom of the first rotating shaft 53, the side wall of the gas storage tube 18 is fixedly connected with the inner wall of the first sampling tube 4, a first connecting hole and a second connecting hole are respectively formed in the top and the bottom of the gas storage tube 18 in a penetrating manner, a connecting shaft 19 is rotatably inserted in the center of the top of the gas storage tube 18 in a penetrating manner, the position, close to the bottom, of the connecting shaft 19 is designed as a reciprocating screw rod, a shaft sleeve 20 is sleeved with part of threads of the connecting shaft 19 in a sleeving manner, a sealing plate 21 is rotatably sleeved outside the shaft sleeve 20, the side surface of the sealing plate 21 is attached to the inner wall of the gas storage tube 18, a limit post 22 is inserted in the upper penetrating manner of the sealing plate 21, two ends of the limit post 22 are respectively and fixedly connected with the top and the bottom inner wall of the gas storage tube 18 in a penetrating manner, a gas guide tube 23 is inserted in the bottom inner wall of the gas guide tube 18 in a penetrating manner, a round hole 24 is formed in the sealing plate 21 corresponding to the top of the gas guide tube 23, the top of the gas guide tube 23 is provided with the inner wall of the top, the gas guide tube 23 is provided with a distance between the top of the gas guide tube 23 and the inner wall of the top of the gas guide tube 18 is greater than the thickness of the sealing plate 21, and the diameter of the gas guide tube 23 is matched with the diameter of the round hole 24;
through being provided with the gas storage tube 18, when the ozone and VOCS integrated monitor 8 works normally, along with the starting of the ozone and VOCS integrated monitor 8, the outside air can enter the gas storage tube 18 through the first sampling tube 4 and the first connecting hole under the suction action of the ozone and VOCS integrated monitor 8, and then the air entering the gas storage tube 18 can enter the space at the bottom of the gas storage tube 18 through the gas guide tube 23 and the second connecting hole, and finally enter the ozone and VOCS integrated monitor 8 to finish detection;
in addition, in the process of detecting the ozone and VOCS integrated monitor 8, due to the action of an air suction pump in the ozone and VOCS integrated monitor 8 and the influence of external wind force, the air flow entering the first sampling tube 4 is relatively disordered, and the stability and accuracy of the detection of the ozone and VOCS integrated monitor 8 can be influenced, so that when the air enters the first sampling tube 4, the air flow drives the connecting shaft 19 to rotate along with the wind force, the reciprocating screw rod part on the connecting shaft 19 can drive the sealing plate 21 to move up and down through the shaft sleeve 20, when the sealing plate 21 moves downwards, the sealing plate 21 gradually approaches the air guide tube 23, and when the air guide tube 23 is inserted into the round hole 24, the ozone and VOCS integrated monitor 8 can continue to perform the air suction operation through the air guide tube 23, but due to the fact that the air inlet is reduced, the air flow entering the bottom space of the air guide tube 18 is reduced, the purpose of stabilizing and reducing the air flow rate is achieved, and the stability of the ozone and VOCS integrated monitor 8 in the detection is ensured;
in addition, along with the further decline of closing plate 21, closing plate 21 can slowly impress the air in its bottom space into the bottom space of gas storage pipe 18 through the second connecting hole to enter into the air in ozone and the VOCS integrated monitor 8 through air duct 23 and carry out the complementary operation, guarantee that there is sufficient air can satisfy ozone and the detection demand of VOCS integrated monitor 8.
As shown in fig. 5, the first sampling tube 4 is rotatably sleeved with an annular filter screen 25 at a position close to the top, the outer diameter of the filter screen 25 is fixedly connected with the inner wall of the sleeve 51, and the bottom of the filter screen 25 is flush with the upper edge of the air inlet;
through being equipped with filter screen 25, when outside air enters into sleeve 51 inside through the air inlet, filter screen 25 can filter some floater in the air, avoids these floaters to enter into inside ozone and the VOCS integral type monitor 8, causes ozone and the damage of VOCS integral type monitor 8.
Although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (5)
1. Atmospheric pollution monitoring traceability system based on passive infrared telemetry, including equipment car (1), its characterized in that: the utility model discloses a device for monitoring the dust and the dust, which comprises a supporting plate (2) horizontally arranged at the top of a device vehicle (1), a plurality of electric telescopic rods (3) vertically fixedly connected between the bottom of the supporting plate (2) and the device vehicle (1), jacks are arranged on the supporting plate (2) in a penetrating way, first sampling pipes (4) are inserted in the jacks, first diversion devices (5) are arranged at the top ends of the first sampling pipes (4), second sampling pipes (6) are connected at the bottom of the first sampling pipes (4), through holes are arranged on the device vehicle (1) in a penetrating way at corresponding positions of the second sampling pipes (6), the bottom of the second sampling pipes (6) is inserted in the through holes, second diversion devices (7) are arranged at the bottom of the second sampling pipes (6), ozone and a dust accumulation load monitor (9) are respectively arranged on the same sides of the first sampling pipes (4) and the second sampling pipes (6), an ozone and a dust accumulation load monitor (8), and a dust accumulation monitor (12) are respectively arranged on one side of the first sampling pipes (4) and the second sampling pipes (6) and the ozone and the dust accumulation monitor (8), and the dust accumulation monitor (9) are connected with the first dust accumulation monitor (12) and the dust accumulation monitor (12) respectively, the top of the equipment vehicle (1) is covered with a protective cover (13), and the top end of the first sampling tube (4) is inserted into the top of the protective cover (13) in a penetrating way;
the first sampling tube (4) comprises a fixed tube (41) and a movable tube (42), the movable tube (42) is sleeved on the top of the fixed tube (41) in a sliding manner, a positioning plate (14) is fixedly sleeved at the position, close to the bottom end, of the movable tube (42), the positioning plate (14) is detachably clamped in the jack, the diameter of the position, close to the top end, of the first sampling tube (4) is gradually reduced from bottom to top, the top of the second sampling tube (6) is of a closed design, a limiting tube (15) is sleeved on the periphery of the second sampling tube (6), the limiting tube (15) is fixedly connected with the top of the equipment vehicle (1), a first limiting ring (16) is arranged on the inner wall of the limiting tube (15), a second limiting ring (17) is arranged at the top of the first limiting ring (16), the second limiting ring (17) is fixedly sleeved on the second sampling tube (6), and the outer diameter of the second limiting ring (17) is larger than the inner diameter of the first limiting ring (16).
The first flow guiding device (5) comprises a sleeve (51), the sleeve (51) is rotationally sleeved at the top of the movable tube (42), an air inlet is formed in one side of the sleeve (51) in a penetrating mode, the upper edge of the air inlet is lower than the top opening of the first sampling tube (4), a first wind direction plate (52) is vertically and fixedly connected to the outer wall of one side, far away from the air inlet, of the sleeve (51), a first rotating shaft (53) is rotationally inserted through the top of the sleeve (51), a wind cup (54) is connected to the top of the first rotating shaft (53), the bottom of the first rotating shaft (53) is inserted into the first sampling tube (4), fan blades (55) are arranged on the surface of the first rotating shaft (53) located in the first sampling tube (4), a first fixing ring is rotationally sleeved at the position, close to the bottom end, and a first fixing rod (56) is fixedly connected between the first fixing ring and the inner wall of the first sampling tube (4).
The second flow guiding device (7) comprises a funnel cover (71), a second rotating shaft (72) is inserted and connected at the axis of the funnel cover (71), the top end of the second rotating shaft (72) is inserted and connected in a second sampling tube (6), a second fixing ring is sleeved at the position, close to the top, of the second rotating shaft (72), a second fixing rod (73) is fixedly connected between the second fixing ring and the inner wall of the second sampling tube (6), a surrounding plate (74) is fixedly connected at the edge position of the bottom of the funnel cover (71), the surrounding plate (74) is of a non-closed-loop structure, the top edge of the surrounding plate (74) is sleeved at the bottom of the second sampling tube (6) in a rotating mode, a second wind direction plate (75) is arranged on one side, far away from the opening of the surrounding plate (74), and the second wind direction plate (75) is fixedly connected with the outer wall of the surrounding plate (74) in a vertical mode;
the bottom of first pivot (53) is equipped with columniform gas storage pipe (18), the lateral wall of gas storage pipe (18) is with the inner wall fixed connection of first sampling pipe (4), and runs through respectively with the bottom of gas storage pipe (18) and has seted up first connecting hole and second connecting hole, the top center department rotation of gas storage pipe (18) runs through and has pegged graft connecting axle (19), the position that connecting axle (19) is close to the bottom is reciprocating screw design, and the partial screw thread of connecting axle (19) has cup jointed axle sleeve (20), axle sleeve (20) outer rotation has cup jointed closing plate (21), and the side of closing plate (21) is laminated with the inner wall of gas storage pipe (18), run through on closing plate (21) and peg graft spacing post (22), the both ends of spacing post (22) are respectively with the top of gas storage pipe (18) and the perpendicular fixed connection of bottom inner wall, it has air duct (23) to run through on the bottom inner wall of gas storage pipe (18), runs through on the bottom inner wall that air duct (23) top corresponds sealing plate (21) has run through on and has seted up round hole (24).
2. The atmospheric pollution monitoring and tracing system based on passive infrared telemetry according to claim 1, wherein: the position that first sampling pipe (4) is close to the top rotates and cup joints annular filter screen (25), the external diameter of filter screen (25) and the inner wall fixed connection of sleeve (51), and the bottom of filter screen (25) flushes with the upper edge of air inlet.
3. The atmospheric pollution monitoring and tracing system based on passive infrared telemetry according to claim 2, wherein: the outside of sleeve (51) has cup jointed kuppe (26), the diameter top-down of kuppe (26) increases gradually, and the top edge of kuppe (26) flushes with the lower edge of air inlet, fixedly connected with two baffles (27) on kuppe (26), and two baffles (27) are located the both sides position of air inlet respectively.
4. The atmospheric pollution monitoring and tracing system based on passive infrared telemetry according to claim 1, wherein: the bottom diameter of the funnel cover (71) is larger than that of the second sampling tube (6), and the funnel cover (71) is not contacted with the bottom of the second sampling tube (6).
5. The atmospheric pollution monitoring and tracing system based on passive infrared telemetry according to claim 1, wherein: the distance between the top of the air duct (23) and the inner wall of the top of the air storage tube (18) is larger than the thickness of the sealing plate (21), and the diameter of the air duct (23) is matched with the diameter of the round hole (24).
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| CN202310199785.9A CN116338091B (en) | 2023-03-05 | 2023-03-05 | Atmospheric pollution monitoring traceability system based on passive infrared telemetry |
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| CN116338091A (en) | 2023-06-27 |
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