CN108918790B - High-precision on-site gas dynamic detection device - Google Patents
High-precision on-site gas dynamic detection device Download PDFInfo
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- CN108918790B CN108918790B CN201811153584.0A CN201811153584A CN108918790B CN 108918790 B CN108918790 B CN 108918790B CN 201811153584 A CN201811153584 A CN 201811153584A CN 108918790 B CN108918790 B CN 108918790B
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- 238000001514 detection method Methods 0.000 title claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 74
- 239000004065 semiconductor Substances 0.000 claims abstract description 27
- 230000002572 peristaltic effect Effects 0.000 claims abstract description 23
- 238000004088 simulation Methods 0.000 claims abstract description 9
- 230000001105 regulatory effect Effects 0.000 claims abstract description 7
- 210000001503 joint Anatomy 0.000 claims description 18
- 238000003032 molecular docking Methods 0.000 claims description 14
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 8
- 239000002689 soil Substances 0.000 claims description 6
- 238000005086 pumping Methods 0.000 claims description 5
- 239000006260 foam Substances 0.000 claims description 3
- 238000011065 in-situ storage Methods 0.000 claims 2
- 238000010030 laminating Methods 0.000 claims 1
- 238000009423 ventilation Methods 0.000 abstract description 11
- 239000010871 livestock manure Substances 0.000 description 8
- 229910021529 ammonia Inorganic materials 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000006698 induction Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005679 Peltier effect Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000008400 supply water Substances 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
- G01N33/0006—Calibrating gas analysers
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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
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
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- Food Science & Technology (AREA)
- Combustion & Propulsion (AREA)
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- Analytical Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a high-precision on-site gas dynamic detection device, which is characterized in that two ventilation holes are symmetrically arranged in a gas collecting hood, one ventilation hole is connected with a gas inlet pipe, the other ventilation hole is connected with a gas outlet pipe, a central control chip, a battery, a temperature regulating device, a wind speed and direction control device and a rainfall simulation device are also included, the temperature regulating device includes a temperature sensor and a semiconductor cold and hot sheet set, the wind speed and direction control device includes a wind speed and direction sensor, a motor is fixed on an upper half seat, a driving shaft of the motor penetrates through the upper half seat to be in threaded engagement with a lower half seat, the rainfall simulation device includes a water collecting ring, a water level sensor, a peristaltic pump, a water tank and a shower head, and the central control chip can control the rotation times of the peristaltic pump according to signals of the water level sensor, so that water sprayed by the shower head is quantified. The invention has the advantages of accurate detection data and similar gas environment in the dynamic box to the outside.
Description
Technical Field
The invention belongs to the technical field of gas detection equipment, and particularly relates to a high-precision on-site gas dynamic detection device.
Background
When the gas volatilization amount is detected in the field, a gas detection box can be used, the working principle is that the gas detection box is covered on a target object, the gas volatilized by the target object can flood the gas detection box, a gas detector is arranged in the gas detection box, the change condition of the target gas content in the gas detection box is recorded in real time, however, the gas detection box can change the wind direction, wind speed, humidity, temperature, rainfall and other environments around the target object in the detection process, the volatilized gas of the target object cannot be completely consistent with the outside, and the detection result is inaccurate.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a high-precision on-site gas dynamic detection system which has accurate detection data and is similar to the outside in the gas environment in a dynamic box aiming at the defects in the prior art.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
a high-precision on-site gas dynamic detection device, wherein: comprises an annular base and a reverse bowl-shaped gas collecting hood, wherein the lower edge of the gas collecting hood is in sealing connection with the inner annular surface of the annular base, an air inlet pipe and an air outlet pipe are fixed on the upper half seat of the annular base, a first gas detector is arranged on the air inlet pipe, a second gas detector is arranged on the air outlet pipe, an air pump is arranged on the air inlet pipe or the air outlet pipe and used for pumping gas outside the gas collecting hood into the gas collecting hood and enabling the gas in the gas collecting hood to flow out of the air outlet pipe, two ventilation holes are symmetrically arranged in the gas collecting hood, one ventilation hole is connected with the air inlet pipe, the other ventilation hole is connected with the air outlet pipe, the gas dynamic detection system further comprises a central control chip, a battery, a temperature regulation and control device, an air speed and air direction control device and a rainfall simulation device, wherein the central control chip and the battery are fixed on the upper surface of the upper half seat, the temperature regulating device comprises a temperature sensor and a semiconductor cold and hot sheet group, wherein the temperature sensor is fixed on the gas collecting cover and is used for detecting the temperature inside and outside the gas collecting cover, the temperature sensor is connected with the central control chip and transmits temperature difference signals to the central control chip, the semiconductor cold and hot sheet group comprises a plurality of semiconductor cold and hot sheets which are connected in series or in parallel, one end of each semiconductor cold and hot sheet is positioned in the gas collecting cover, the other end of each semiconductor cold and hot sheet is positioned outside the gas collecting cover, the semiconductor cold and hot sheets are respectively connected with the central control chip and a battery, the central control chip can control the on-off and current direction of the semiconductor cold and hot sheets, the wind speed and wind direction control device comprises a wind speed and wind direction sensor, the wind speed and wind direction sensor is fixed on an upper half seat and is connected with the central control chip through signals, the annular base consists of an upper half seat and a lower half seat, the upper half seat and the lower half seat are fixed in a clamping position and can be horizontally and rotatably matched, and a motor is fixed on the upper half seat, the drive shaft of motor passes first seat and lower half seat screw thread interlock cooperation, lower half seat and motor's drive shaft cooperation department is provided with round screw thread tooth for when the motor rotated, first seat and lower half seat are rotatory, rainfall analogue means includes the water catch collar, the water level inductor, the peristaltic pump, water tank and gondola water faucet head, the water catch collar is vertical annular structure, water catch collar lower extreme and gas collecting cover surface seal fixed connection, enclose round water collecting region on the gas collecting cover surface, the water level inductor is provided with the water level induction point of a plurality of difference in height on the water catch collar, when water overflows the water level induction point, the water level inductor can respond to the water level height, and send the signal to well accuse chip, peristaltic pump and water tank are fixed on first seat, the water tank is connected with the peristaltic pump, supply water for the peristaltic pump passes through the pipeline and is connected with the gondola water faucet head, well accuse chip can be according to the signal of water level inductor, the rotation number of control peristaltic pump, thereby make the ration of gondola water faucet head blowout.
In order to optimize the technical scheme, the specific measures adopted further comprise:
the lower surface of the lower half seat is provided with a butt joint groove, the butt joint groove is used for being connected with the externally hung structure, the upper surface of the externally hung structure is provided with a butt joint protruding head which is in butt joint with the butt joint groove, and when the butt joint protruding head is clamped in the butt joint groove, the lower half seat is in sealing fit and fixation with the externally hung structure.
The externally hung structure is a buoyancy ring, the buoyancy ring is composed of foam or aerated rubber, a hard flat plate is fixed at the upper end of the buoyancy ring, the butt joint raised head is fixed on the upper surface of the hard flat plate, and the buoyancy of the buoyancy ring enables the gas dynamic detection system to float on the water surface.
The externally hung structure is a plugboard ring, the plugboard ring is composed of vertical annular plates, the lower surface of the plugboard ring is sharp, a hard flat plate is fixed at the upper end of the plugboard ring, the butt joint raised head is fixed on the upper surface of the hard flat plate, and the plugboard ring can be inserted into soil, so that the soil right below the gas collecting hood is sealed and isolated from the outside.
The external hanging structure is a rubber ring, the lower surface of the rubber ring is flexible rubber, the rubber ring can be in sealing fit with the hard ground, the hard ground surface right below the gas collecting hood is sealed and isolated from the outside, the hard flat plate is fixed at the upper end of the rubber ring, and the butt joint raised head is fixed on the upper surface of the hard flat plate.
The central control chip is a singlechip, and the model is STM32L series; the battery is a direct current battery.
The gas-collecting hood is a transparent hood.
The first gas detector and the second gas detector are ammonia gas detectors.
The battery is also respectively connected with the air pump, the central control chip, the temperature sensor, the motor, the water level sensor and the peristaltic pump and supplies power for the air pump, the central control chip is also connected with the air pump and controls the pumping speed of the air pump, and the central control chip is also connected with the motor and controls the rotation number of turns of the motor.
The motor is a stepping motor.
The invention relates to a high-precision on-site gas dynamic detection device, which changes the mode of detecting gas concentration in a box body of a traditional gas detection box, adopts the mode of detecting the gas concentration of a gas inlet and a gas outlet, calculates the gas volatilization amount in the box according to the difference value between the gas concentration and the gas outlet, pumps the gas outside a gas collecting cover into the gas collecting cover through a gas pump, so that the gas in the gas collecting cover flows, keeps the humidity of the gas in the gas collecting cover consistent with the outside, detects the wind direction and the wind speed through a wind speed and wind direction sensor, controls a motor to rotate, enables an upper half seat and a lower half seat to slide relatively, changes the positions of ventilation holes, changes the wind inlet direction and the wind outlet direction, achieves the aim of changing the wind direction, and then enables the temperature inside and outside the gas collecting cover to be measured through a temperature sensor by changing the operation speed of the gas pump, and the wind speed inside and outside the gas collecting cover is consistent, the central control chip heats or cools the gas in the gas collecting hood through the semiconductor cold and hot sheet group to make the temperature difference between the inside and the outside consistent, the semiconductor cold and hot sheet can control one end in the gas collecting hood to be a hot end or a cold end according to the Peltier effect by changing the current direction, the structure is small and exquisite, the efficiency is higher, the device is suitable for being used as an air conditioning system, the device can simulate rainfall, when the outside rains, the water collecting ring and the water level sensor are used for detecting the rainfall, the central control chip sprays equal amount of water into the gas collecting hood through the peristaltic pump, the gas collecting hood of the device is transparent, sunlight can normally irradiate into the gas collecting hood, the device fully considers the parameters of the inside and outside wind speed, the wind direction, the temperature, the humidity, the rainfall, the illumination and the like of the gas collecting hood, and balances one by one, so that the actual gas volatilization condition of a measured object in the gas collecting hood is consistent with the objective gas volatilization condition, thereby realizing high-precision measurement. The device also has a plurality of externally hung structures which respectively correspond to water measurement, soft land measurement and hard land measurement, so that the tightness of the gas collecting hood is ensured, and the device can adapt to various terrain environments.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a block diagram of a buoyancy ring;
FIG. 4 is a block diagram of a fork strap ring;
fig. 5 is a structural view of the glue loop.
Wherein the reference numerals are as follows: the device comprises an annular base 1, an upper half seat 1a, a lower half seat 1b, an air inlet pipe 11, an air outlet pipe 12, a first gas detector 13, a second gas detector 14, an air pump 15, a butt joint groove 16, a gas collecting cover 2, a ventilation sieve mesh 21, a central control chip 3, a battery 4, a temperature regulating device 5, a temperature sensor 51, a semiconductor cold and hot sheet group 52, an air speed and direction control device 6, an air speed and direction sensor 61, a motor 62, a rainfall simulation device 7, a water collecting ring 71, a water level sensor 72, a peristaltic pump 73, a water tank 74, a shower head 75, an externally hung structure 8, a butt joint raised head 81, a buoyancy ring 82, a plugboard ring 83 and a rubber ring 84.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
The invention relates to a high-precision on-site gas dynamic detection device, wherein: comprises an annular base 1 and a reverse bowl-shaped gas collecting hood 2, wherein the lower edge of the gas collecting hood 2 is in sealing connection with the inner annular surface of the annular base 1, a gas inlet pipe 11 and a gas outlet pipe 12 are fixed on the upper half seat 1a of the annular base 1, a first gas detector 13 is arranged on the gas inlet pipe 11, a second gas detector 14 is arranged on the gas outlet pipe 12, a gas pump 15 is arranged on the gas inlet pipe 11 or the gas outlet pipe 12, the gas pump 15 is used for pumping gas outside the gas collecting hood 2 into the gas collecting hood 2 and enabling the gas in the gas collecting hood 2 to flow out from the gas outlet pipe 12, two ventilation holes 21 are symmetrically arranged in the gas collecting hood 2, one ventilation hole 21 is connected with the gas inlet pipe 11, the other ventilation hole 21 is connected with the gas outlet pipe 12, the gas dynamic detection system further comprises a central control chip 3, a battery 4, a temperature regulating device 5, a wind speed and a wind direction control device 6 and a rainfall simulation device 7, the central control chip 3 and the battery 4 are fixed on the upper surface of the upper half seat 1a, the temperature regulating device 5 comprises a temperature sensor 51 and a semiconductor cold and hot sheet group 52, the temperature sensor 51 is fixed on the gas collecting cover 2 and is used for detecting the temperature inside and outside the gas collecting cover 2, the temperature sensor 51 is connected with the central control chip 3 and transmits a temperature difference signal to the central control chip 3, the semiconductor cold and hot sheet group 52 comprises a plurality of semiconductor cold and hot sheets which are connected in series or in parallel, one end of the semiconductor cold and hot sheet is positioned in the gas collecting cover 2, the other end of the semiconductor cold and hot sheet is positioned outside the gas collecting cover 2, the semiconductor cold and hot sheet is respectively connected with the central control chip 3 and the battery 4, the central control chip 3 can control the on-off and current direction of the semiconductor cold and hot sheet, the wind speed and direction control device 6 comprises a wind speed and direction sensor 61, the wind speed and direction sensor 61 is fixed on the upper half seat 1a and is connected with the central control chip 3 in a signal, the annular base 1 comprises an upper half seat 1a and a lower half seat 1b, the upper half seat 1a and the lower half seat 1b are fixed in an upper clamping position and horizontally rotatably matched, a motor 62 is fixed on the upper half seat 1a, a driving shaft of the motor 62 penetrates through the upper half seat 1a and the lower half seat 1b in threaded engagement, a circle of thread teeth are arranged at the matched position of the lower half seat 1b and the driving shaft of the motor 62, when the motor 62 rotates, the upper half seat 1a and the lower half seat 1b rotate, a rainfall simulation device 7 comprises a water collecting ring 71, a water level sensor 72, a peristaltic pump 73, a water tank 74 and a shower head 75, the water collecting ring 71 is of a vertical annular structure, the lower end of the water collecting ring 71 is fixedly connected with the outer surface of a gas collecting cover 2 in a sealing mode, a circle of water collecting area is surrounded on the outer surface of the gas collecting cover 2, a plurality of water level sensor 72 is arranged on the water collecting ring 71, when water passes through the water level sensing points, the water level sensor 72 can sense the height and send signals to a central control chip 3, the peristaltic pump 73 and the water tank 74 are fixedly connected with the water tank 73 and the shower head 75 in the water collecting cup 73 through the peristaltic pump 73, and the peristaltic pump 73 is connected with the peristaltic pump 73 in a fixed mode, and the water tank 73 is connected with the water tank 73 in a fixed mode, and the water tank 73 is fixed in a certain number of time.
In the embodiment, the lower surface of the lower half seat 1b is provided with a docking groove 16, the docking groove 16 is used for being connected with the external hanging structure 8, the upper surface of the external hanging structure 8 is provided with a docking raised head 81 docking with the docking groove 16, and when the docking raised head 81 is clamped in the docking groove 16, the lower half seat 1b is in sealing fit with and fixed with the external hanging structure 8.
In the embodiment, the externally hung structure 8 is a buoyancy ring 82, the buoyancy ring 82 is made of foam or aerated rubber, a hard flat plate is fixed at the upper end of the buoyancy ring 82, the butt joint raised head 81 is fixed on the upper surface of the hard flat plate, and the buoyancy of the buoyancy ring 82 enables the gas dynamic detection system to float on the water surface.
The externally hung structure 8 is a plugboard ring 83, the plugboard ring 83 is composed of vertical annular plates, the lower surface of the plugboard ring 83 is sharp, a hard flat plate is fixed at the upper end of the plugboard ring 83, the butt joint raised head 81 is fixed on the upper surface of the hard flat plate, and the plugboard ring 83 can be inserted into soil, so that the soil right below the gas collecting hood 2 is sealed and isolated from the outside.
In the embodiment, the external hanging structure 8 is a rubber ring 84, the lower surface of the rubber ring 84 is flexible rubber, and the rubber ring can be sealed and attached to the hard ground, so that the hard ground surface right below the gas collecting hood 2 is sealed and isolated from the outside, a hard flat plate is fixed at the upper end of the rubber ring 84, and the butt joint raised head 81 is fixed on the upper surface of the hard flat plate.
In the embodiment, the central control chip 3 is a singlechip, and the model is STM32L series; the battery 4 is a dc battery.
In an embodiment, the gas-collecting hood 2 is a transparent hood.
In an embodiment, the first gas detector 13 and the second gas detector 14 are ammonia gas detectors.
In the embodiment, the battery 4 is further connected to and supplies power to the air pump 15, the central control chip 3, the temperature sensor 51, the motor 62, the water level sensor 72 and the peristaltic pump 73, the central control chip 3 is further connected to the air pump 15 and controls the pumping speed of the air pump 15, and the central control chip 3 is further connected to the motor 62 and controls the number of rotations of the motor 62.
In an embodiment, the motor 62 is a stepper motor.
The central control chip 3, the battery 4 and the semiconductor cold and hot sheet set 52 are covered and protected by a cover body, and the cover body is provided with vent holes.
The application method of the invention is as follows:
taking the example of detecting the amount of ammonia volatilized from the livestock manure of a unit surface area on the livestock manure mountain, hanging an inserting plate ring 83 below a lower half seat 1b, then placing the spliced device in a target area of the livestock manure mountain, inserting the inserting plate ring 83 into the livestock manure so as to completely isolate the livestock manure inside and outside the gas collecting cover 2, detecting the wind direction and the wind speed by a wind speed and wind direction sensor 61, detecting the height of a water body in the water collecting ring 71 by a water level sensor 72, detecting the temperature inside and outside the gas collecting cover 2 by a temperature sensor 51, controlling the operation of a motor 62 according to the detection result of the structure, adjusting the wind direction in the gas collecting cover 2, controlling the operation of an air pump 15, adjusting the wind speed, controlling the operation of a peristaltic pump 73, enabling the rainfall inside and outside the gas collecting cover 2 to be consistent, controlling the power on and off of a semiconductor cold and hot plate group 52, adjusting the temperature, continuously collecting the ammonia gas concentration passing through an air inlet pipe 11 and an air outlet pipe 12 by a first gas detector 13 and a second gas detector 14, sending a signal to an external signal receiver, calculating the amount of ammonia gas concentration between the air inlet pipe 11 and the air outlet pipe 12, and the amount 15, calculating the amount of ammonia volatilized from the air into the livestock manure to the unit surface area of the livestock manure, and further calculating the amount of ammonia volatilized from the whole surface area of the livestock manure.
If the object to be detected is the ammonia volatilization amount of a certain water body, the buoyancy ring 82 is replaced, so that the whole device can float on the water body, and the rest structure and the operation mode are unchanged.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the invention without departing from the principles thereof are intended to be within the scope of the invention as set forth in the following claims.
Claims (8)
1. A high-precision on-site gas dynamic detection device is characterized in that: the device comprises an annular base (1) and a reverse bowl-shaped gas collecting hood (2), wherein the lower edge of the gas collecting hood (2) is in sealing connection with the inner annular surface of the annular base (1), a gas inlet pipe (11) and a gas outlet pipe (12) are fixed on the upper half seat (1 a) of the annular base (1), a first gas detector (13) is arranged on the gas inlet pipe (11), a second gas detector (14) is arranged on the gas outlet pipe (12), a gas pump (15) is arranged on the gas inlet pipe (11) or the gas outlet pipe (12), the gas pump (15) is used for pumping gas outside the gas collecting hood (2) into the gas collecting hood (2), and enabling the gas in the gas collecting hood (2) to flow out from the gas outlet pipe (12), two sieve holes (21) are symmetrically arranged in the gas collecting hood (2), one of the sieve holes (21) is connected with the gas inlet pipe (11), the other sieve hole (21) is connected with the gas outlet pipe (12), a gas dynamic detection system further comprises a middle control chip (3), a temperature control device (5), a wind speed control device (7) and a rainfall simulation device (6) on the upper half surface of the gas flow control device (1) and a rainfall simulation device (1), the temperature regulating device (5) comprises a temperature sensor (51) and a semiconductor cold and hot sheet group (52), wherein the temperature sensor (51) is fixed on a gas collecting cover (2) and is used for detecting the temperature inside and outside the gas collecting cover (2), the temperature sensor (51) is connected with a central control chip (3) and transmits a temperature difference signal to the central control chip (3), the semiconductor cold and hot sheet group (52) comprises a plurality of semiconductor cold and hot sheets connected in series or in parallel, one end of each semiconductor cold and hot sheet is positioned in the gas collecting cover (2) and the other end of each semiconductor cold and hot sheet is positioned outside the gas collecting cover (2), the semiconductor cold and hot sheets are respectively connected with the central control chip (3) and a battery (4), the central control chip (3) can control the on-off and current direction of the semiconductor cold and hot sheets, the wind speed and wind direction control device (6) comprises a wind speed and wind direction sensor (61), the wind speed and wind direction sensor (61) is fixed on an upper half seat (1 a) and is connected with the central control chip (3) through signals, the upper half seat (1 b) and the upper half seat (1 a) and the lower half seat (1 b) are matched with the upper half seat (1 a) and the lower half seat (1 b) in a, the upper half seat (1 b) is matched with the upper seat (1 a) and the lower seat (1) in a, and the lower seat (1 b) is matched with the upper seat (1, the lower half seat (1 b) is provided with a circle of thread teeth at the matching position of the lower half seat and a driving shaft of the motor (62), so that when the motor (62) rotates, the upper half seat (1 a) and the lower half seat (1 b) rotate, the rainfall simulation device (7) comprises a water collecting ring (71), a water level sensor (72), a peristaltic pump (73), a water tank (74) and a shower head (75), the water collecting ring (71) is of a vertical annular structure, the lower end of the water collecting ring (71) is fixedly connected with the outer surface of the gas collecting cover (2) in a sealing way, a circle of water collecting area is surrounded on the outer surface of the gas collecting cover (2), the water level sensor (72) is provided with a plurality of water level sensing points with different heights on the water collecting ring (71), when water overflows the water level sensing points, the water level sensor (72) can sense the water level height and send signals to a central control chip (3), the peristaltic pump (73) and the water tank (74) are fixed on the upper half seat (1 a), the water tank (74) is connected with the peristaltic pump (73) and the peristaltic pump (73) in the shower head (73) in a way, the peristaltic pump (73) can be connected with the shower head (75) in a rotating way according to the peristaltic pump (73), thereby quantifying the water sprayed from the shower head (75); the motor (62) is a stepping motor.
2. The high-precision on-site gas dynamic detection device according to claim 1, wherein the device is characterized in that: the lower surface of lower half seat (1 b) be provided with docking groove (16), docking groove (16) be used for being connected with outer hanging structure (8), the upper surface of outer hanging structure (8) be provided with docking raised head (81) of docking in docking groove (16), docking raised head (81) card when docking groove (16), lower half seat (1 b) and outer hanging structure (8) seal laminating are fixed.
3. The high-precision on-site gas dynamic detection device according to claim 2, wherein the device is characterized in that: the external hanging structure (8) is a buoyancy ring (82), the buoyancy ring (82) is composed of foam or aerated rubber, a hard flat plate is fixed at the upper end of the buoyancy ring (82), the butt joint raised head (81) is fixed on the upper surface of the hard flat plate, and the buoyancy of the buoyancy ring (82) enables the gas dynamic detection system to float on the water surface.
4. The high-precision on-site gas dynamic detection device according to claim 2, wherein the device is characterized in that: the plug-in plate ring (83) is arranged on the plug-in plate structure (8), the plug-in plate ring (83) is composed of vertical annular plates, the lower surface of the plug-in plate ring (83) is sharp, a hard flat plate is fixed at the upper end of the plug-in plate ring (83), the butt joint raised heads (81) are fixed on the upper surface of the hard flat plate, and the plug-in plate ring (83) can be inserted into soil to enable the soil under the gas collecting hood (2) to be sealed and isolated from the outside.
5. The high-precision on-site gas dynamic detection device according to claim 2, wherein the device is characterized in that: the external hanging structure (8) is a rubber ring (84), the lower surface of the rubber ring (84) is flexible rubber, and the rubber ring can be sealed and attached to the hard ground, so that the hard ground surface right below the gas collecting hood (2) is sealed and isolated from the outside, a hard flat plate is fixed at the upper end of the rubber ring (84), and the butt joint raised head (81) is fixed on the upper surface of the hard flat plate.
6. The high-precision in-situ gas dynamic detection device according to claim 3, 4 or 5, wherein the device is characterized in that: the central control chip (3) is a singlechip, and the model is STM32L series; the battery (4) is a direct current battery.
7. The high-precision on-site gas dynamic detection device according to claim 6, wherein the device is characterized in that: the gas collecting hood (2) is a transparent hood.
8. The high-precision in-situ gas dynamic detection device of claim 7, wherein: the first gas detector (13) and the second gas detector (14) are ammonia gas detectors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811153584.0A CN108918790B (en) | 2018-09-30 | 2018-09-30 | High-precision on-site gas dynamic detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811153584.0A CN108918790B (en) | 2018-09-30 | 2018-09-30 | High-precision on-site gas dynamic detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108918790A CN108918790A (en) | 2018-11-30 |
| CN108918790B true CN108918790B (en) | 2024-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811153584.0A Active CN108918790B (en) | 2018-09-30 | 2018-09-30 | High-precision on-site gas dynamic detection device |
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| CN109342667B (en) * | 2018-12-11 | 2024-04-23 | 环境保护部南京环境科学研究所 | Large-range gas dynamic detection device based on unmanned aerial vehicle and detection method thereof |
| CN109375557A (en) * | 2018-12-11 | 2019-02-22 | 南通大学 | Monitoring system and its detection method with the detection of multiple spot gas-dynamic |
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| CN204327147U (en) * | 2014-11-06 | 2015-05-13 | 西安越度机电科技有限公司 | A kind of flexible duct mouth of pipe wind direction self-adaptive regulating |
| CN107389879A (en) * | 2017-09-04 | 2017-11-24 | 湖州同晟企业管理咨询服务有限公司 | A kind of printing and dyeing industry waste gas Intelligent Measurement processing unit |
| CN208921687U (en) * | 2018-09-30 | 2019-05-31 | 南通大学 | A kind of high-precision real ground gas dynamic detection system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN204327147U (en) * | 2014-11-06 | 2015-05-13 | 西安越度机电科技有限公司 | A kind of flexible duct mouth of pipe wind direction self-adaptive regulating |
| CN107389879A (en) * | 2017-09-04 | 2017-11-24 | 湖州同晟企业管理咨询服务有限公司 | A kind of printing and dyeing industry waste gas Intelligent Measurement processing unit |
| CN208921687U (en) * | 2018-09-30 | 2019-05-31 | 南通大学 | A kind of high-precision real ground gas dynamic detection system |
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