375 results about "Air sample" patented technology

A remote test apparatus is configured to simulate an environment of at least one remotely located room and configured to receive at least one air sample from the at least one remotely located room. The apparatus includes a sealed enclosure forming an interior cavity and including an inlet in connection with the at least one remotely located room and an outlet in connection with a sample collection unit. The sample collection unit is configured to communicate the at least one air sample from the remotely located room at a first flow rate. The apparatus further includes at least one sensor disposed in the interior cavity and at least one air transfer unit configured to transfer test air from the interior cavity of the sealed enclosure to the at least one sensor at a second flow rate.

The invention discloses a hog house air environment detecting and sampling device and method, the hog house air environment detecting and sampling device comprises a supporting seat and an air suction cylinder arranged on the supporting seat, a sampling cylinder mounting seat is rotatably mounted on the supporting seat, and a plurality of sampling cylinders are placed on the sampling cylinder mounting seat. According to the hog house air environment detecting and sampling device and method, through cooperation of the air extraction driving assembly, the air guide assembly and the air extraction barrel, hog house air extraction is achieved, in the hog house air extraction process, the air guide assembly communicates with the sampling barrel, then the extracted air is guided into the sampling barrel in the mode that air in the air extraction barrel is squeezed, and the hog house air environment detecting and sampling device is used for detecting the hog house air environment. According to the sampling device, the air guiding assembly is arranged on the sampling barrel to complete air sample retention, after air sample injection is completed, the air guiding assembly and the sampling barrel are separated, under the cooperation of the rotating preparation part and the sampling barrel placement base, sequential switching of stations where the sampling barrel is located is achieved, and support is provided for automatic continuous sampling of the sampling barrel.

The invention discloses an air sampling strategy optimization method and system based on artificial intelligence, and relates to the technical field of environment monitoring, an air quality prediction model is constructed based on a neural network, historical environment monitoring data is taken as training data, the air quality prediction model is trained and optimized, and the air sampling strategy optimization method and system based on artificial intelligence are obtained. Predicting and outputting an air quality change trend in a period of time in the future; formulating an optimal sampling strategy based on an output result of the air quality prediction model in combination with air quality data, meteorological data and pollution source data collected in real time; and automatically controlling the operation of the air sampling equipment according to the optimal sampling strategy. According to the method, the multi-source environment data is collected in real time, the high-precision air quality prediction model is constructed, the optimal sampling strategy is made in combination with the multi-target optimization method, operation of the air sampling equipment is automatically controlled, the sampling strategy can be dynamically adjusted according to real-time environment changes, and the pertinence and effectiveness of air sampling are improved.

The invention relates to the technical field of gas component detection, in particular to a public place gas detection method based on gas chromatography, which comprises the following steps: a mobile robot covers all areas of a public place according to a predetermined path, collects an air sample, and pretreats the collected gas sample through a filter or an adsorbent; a gas sample enters a detector after being separated by a gas chromatographic column, and harmful gas components are identified; according to the detected harmful gas concentration, combining historical data and a threshold value, calculating the danger level of each region, and carrying out danger level division on the region of the public place; according to the danger level, the system automatically selects and executes corresponding countermeasures; and the system records a historical data set of all countermeasures, and optimizes the countermeasures through a machine learning algorithm. According to the invention, full coverage, multi-area dynamic monitoring, accurate risk prediction and grading processing can be realized, and the response speed and the use effect of the system are improved.

The invention relates to an air detection method and system, and relates to the technical field of air detection, and the method comprises the steps: collecting the space detection information of a detection house and the specification of sampling equipment; calling a space area value, a space layout condition and a space placement condition based on the space detection information; determining the area sampling number by combining the space area value and the sampling equipment specification; generating a sampling initial position point according to the spatial layout condition and the area sampling number; determining a sampling adjustment position point according to the spatial placement condition and the sampling initial position point; and determining sampling duration according to the sampling adjustment position point and the specification of the sampling equipment, and controlling the preset sampling equipment to collect the air sample based on the sampling adjustment position point and the sampling duration. The method has the effect of improving the accuracy of a detection result when air detection is carried out in a room.

The invention provides an air-ground cooperative target detection and feature analysis system and method, and the method comprises the steps: correspondingly obtaining an air sample database and a ground sample database through collection, data cleaning, enhancement, labeling, feature extraction and classification; the air feature sample data set and the ground feature sample data set are processed and screened through a sample processing module, the screened air sample data set and the screened ground feature sample data set are input into a model for training, and a trained air target recognition model and a trained ground target analysis model are obtained; and the two models are optimized respectively, and detection and feature analysis of the target are realized in combination with multi-modal feature fusion. Compared with the prior art, through mutual combination of the aerial target identification model and the ground target analysis model and multi-modal feature fusion, target detection and feature analysis are realized based on application scene training optimization, and target detection precision and feature analysis accuracy are improved.

The invention relates to an environmental governance device based on digital twinning and Internet of Things. The environmental governance device comprises a detection box, a base, an air inlet pipe, a power mechanism and a control mechanism. The detection box is used for collecting an air sample and sending detection data to the data processing center; the base is arranged below the detection box, adopts a triangular supporting structure to improve the stability, and can be fixed on the ground or buried in soil; the air inlet pipe is mounted above the detection box and is used for guiding air into the detection box; the power mechanism drives the fan blades to rotate through natural wind and drives the driving gear to act through the connecting rod and the rotating shaft. And the control mechanism is linked with the power mechanism, and automatically controls the opening and closing of the air inlet channel according to the natural wind change, thereby optimizing the air sampling process. The device is compact in structure, has the advantages of environmental protection, adaptive adjustment, high reliability and easy large-scale deployment, can be widely applied to urban environment monitoring, ecological management and smart city construction, and provides real-time and accurate basic data support.

The embodiments provide a system including a pump configured to pump an air sample, from a container to a cooling chamber, the cooling chamber configured to cool the exhaled air sample to a sub-zero temperature, and is in fluid communication with an injector unit. The injector unit mixes the cooled air sample and inert gas and injects the mixed air sample at a high velocity to a test chamber. Further provided is a method for preparing an air sample for detection of a mixture of proteins.

Examples include a sample collection device that includes a housing, a reservoir structure and a sample capture interface. The housing includes an inlet to receive an air sample from a subject. The sample capture interface provided with the housing includes a sample capture medium. The sample capture interface is manipulatable to insert the sample capture medium into the reservoir structure. Further, the sample capture interface seals the sample capture medium within the reservoir structure. Upon insertion of the sample capture interface, the sample capture interface seals the sample capture medium within the reservoir structure.

The embodiment of the invention provides a radioactive aerosol continuous monitoring device. The radioactive aerosol continuous monitoring device comprises a sampling chamber (1), sampling filter paper (3) and a measuring chamber (2), the sampling chamber (1) is arranged in front of the measuring chamber (2) in the horizontal direction; the sampling chamber (1) comprises a vertically arranged air sampling inlet pipe (13) and a centripetal particle size separation sampler (11) which is arranged below the air sampling inlet pipe (13) and is used for separating radioactive aerosol according to different particle sizes; and the sampling filter paper (3) is arranged below the centripetal particle size separation sampler (11) and is used for receiving the radioactive aerosol separated by the centripetal particle size separation sampler (11). The radioactive aerosol is separated through the centripetal particle size separation sampler, the problem of particle slippage does not exist, the collection efficiency of radioactive particles can be effectively improved, the detection sensitivity and accuracy of the radioactive aerosol are improved, and continuous monitoring of the radioactive aerosol in the air is achieved.

An air sampler adapter (10) adapted to air-tightly contain an air sampling unit (11) remotely sampling air of a zone of interest via a pipe (21), comprising a main portion comprising a housing (15) and a base portion (16) comprising fixing means (161), wherein the fixing means (161) is configured to fix the air sampling unit (11) within said housing (15), a first end portion (17) comprising a sampled air inlet (14) and a first locking mechanism (12) adapted to be switched between an open position during sampling and an airtight closed position, and a second end portion (18) comprising an air outlet (141) and a second locking mechanism (13) adapted to be switched between an open position during sampling and an airtight closed position wherein the air sampler adapter is detachable from the pipe (21) connecting it to the zone of interest and in that the first and second locking mechanisms (12, 13) are adapted to be locked in airtight closed position for clean transportation when detached.

The utility model discloses a negative pressure gas sample sampler, comprising a vacuum pump, a sampler, and a hose for connecting the vacuum pump and the sampler, wherein a connector is provided on the side of the vacuum pump, a connecting pipe is provided on the end of the hose, a cylindrical groove is provided inside the connecting pipe, a plurality of through holes are evenly provided on the side wall of the cylindrical groove, and a rubber layer is provided on the cylindrical groove. When the vacuum pump is pumping air, the gas sample enters the sampler through the cylindrical groove and the through hole, and after the gas enters the sampler, the rubber layer plays a sealing role to prevent the gas in the sampler from leaking out of the through hole, thus ensuring that the sampled gas will not leak.

The invention relates to the technical field of environment monitoring, and discloses a real-time detection method and system for concentration and components of air particulate matters. According to the method, signal fragments are intercepted from continuous detection flow of an air sample in a segmented mode to serve as analysis elements, a de-noising characteristic signal set is generated through background field stripping, and background field parameters are recorded. And positioning a high-concentration characteristic peak cluster in the de-noised signal to mark a key detection window, and constructing a corresponding dynamic detection task sequence. And calling a special analysis thread to carry out collaborative analysis on the de-noised characteristic signal set to obtain a hierarchical judgment result. And the result is coupled and compared with background field parameters, and if conflicts exist, the dynamic detection task sequence is recombined in real time. And updating and executing a control strategy for a subsequent detection flow according to the recombined sequence, thereby forming a self-adaptive closed-loop detection process. According to the invention, the accuracy, depth and adaptive capacity of real-time analysis of pollution components in a complex environment are improved.

The invention relates to the technical field of fire fighting equipment, in particular to a sampling pipe network cleaning device of an air sampling early warning system, which comprises a user side, a cloud platform side, an industrial suction and discharge device, a controller, a dust quantity analyzer and an air sampling assembly, and is characterized in that the controller is in signal connection with the dust quantity analyzer and the industrial suction and discharge device; the controller is in network connection with the cloud platform end through network data transmission, the cloud platform end is in communication connection with the user end, the industrial suction and discharge device is connected with the dust quantity analyzer through a dust suction hose, and the dust quantity analyzer is connected with the air sampling assembly through a purging valve interface. According to the invention, efficient and professional detection pipe network cleaning can be realized; the device can greatly reduce the inhalation dosage of poisonous and harmful dust by personnel in poisonous and harmful places, prevents the personnel from entering the poisonous and harmful environment in daily life, and can perform online comparison on historical data and current data to timely adjust the cleaning period of the detection pipeline.

The invention relates to the technical field of underground space information collection, and particularly discloses a smart city underground space information collection device and method, the device comprises an information collection unmanned aerial vehicle and a supporting plate, the supporting plate is arranged on the front side of the top end of the information collection unmanned aerial vehicle, and the middle part of the top end of the supporting plate is provided with a front-back through first sliding groove. According to the invention, the shape and diffusion degree of the light beam can be adjusted according to actual requirements, clear observation images can be obtained under the condition that the observation distance is changed, meanwhile, when the unmanned aerial vehicle encounters a narrow space, the space size can be accurately measured, decision support is provided for safe passage of the unmanned aerial vehicle, and collision accidents are effectively avoided. The unmanned aerial vehicle can automatically collect air samples at different places according to needs in the long-distance flight process, the range and depth of environment monitoring are greatly improved, and the efficiency, precision and safety of underground space information collection of the smart city are remarkably improved.

The invention relates to a spraying dust-settling effect testing system, and the system comprises a testing platform main body which is internally integrated with a liquid storage tank and an automatic spraying parameter collector, and is used for automatically monitoring the water pressure and flow in a spraying process; the moving mechanism comprises moving wheels and is convenient for the test platform to move; the sampling mechanism is composed of a sampling box, a communication assembly and a sampling head and is used for collecting dust in the air; the air extracting pump and the constant-flow adjusting controller are respectively used for extracting an air sample and adjusting the air flow speed to be constant; the exhaust mechanism is used for exhausting sampled air through an exhaust pipe; the atomizing and spraying mechanism comprises an atomizing nozzle and a water supply pipe and is used for atomizing liquid and spraying the liquid to the space to be detected for dust falling. The system may also comprise additional structures such as a direction-adjustable sampling mechanism, a plurality of atomizing nozzles, a fixing clamp, a liquid inlet valve for controlling external liquid to enter the liquid storage tank and the like.

The invention discloses air particulate matter concentration detection equipment, and relates to the technical field of air detection.The air particulate matter concentration detection equipment comprises a main body and an air inlet pipe, a support is installed in a connector of the air inlet pipe and the main body, a second motor is installed in the middle of the support, and blades are installed on an operating shaft of the second motor; the device has the advantages that the first motor of the flow guide assembly drives the rotating frame to rotate, the angle of the flow guide plate can be adjusted to guide air into the air inlet, the air inflow is increased, it is ensured that an air sample is fully obtained in time, mounting and dismounting are convenient, the flow guide assembly can be easily taken down when equipment is transferred, and meanwhile the position of the air inlet pipe can be adjusted by screwing a rotating wheel; the main body is rotationally placed on the placing frame behind the main body, so that the vertical occupied area is reduced, obstruction is avoided when the equipment is moved, the main body can be fixed on the bearing frame through the mounting frame, the sliding block, the clamping block and the like during mounting, different mounting scenes are adapted, the mounting efficiency is improved, the operation stability is ensured, and the equipment universality is improved.

A gas phase standard preparation device and method of use for creating a final reference material is disclosed. The final reference material is used to quantitate certain gaseous compounds in collected air samples. This is accomplished by providing a sealed ampule tube with an ampule containing reference material that is eventually breached by the gas preparation device. Once the ampule is breached, the reference material within the ampule is blended with a diluent gas and forced into a reference material cylinder. The concentration of the final reference material within the reference material cylinder can then be verified for use in testing collected air samples. Accordingly, this device allows for creating a custom final reference material onsite in a laboratory without the need for shipping in pre-made compressed gas cylinders for air quality testing.

The utility model discloses a laser dust meter for chemical pollution detection, and relates to the technical field of chemical pollution detection. The device comprises a bottom plate, mounting frames are arranged on the two sides of the upper portion of the bottom plate, a detection cylinder is arranged between the mounting frames, a sampling assembly is arranged above the mounting frames, and a storage assembly is further arranged on the bottom plate; electric push rods in the sampling assembly are fixedly connected to the front and rear ends of the mounting rack, and piston shafts of the electric push rods are fixedly connected with a lifting plate. According to the utility model, the electric push rod and the lifting plate in the sampling assembly are used for driving the gas-collecting hood to lift, and the gas-collecting hood is used for sampling and detecting air at different heights, so that the problem that the air at different heights is inconvenient to sample and detect in the prior art is solved; a detected air sample is guided into a storage cylinder for storage through a first connecting pipe and a second connecting pipe in the storage assembly, so that the problem that the detection sample is inconvenient to store in the prior art is solved.

The invention relates to a device (1) for measuring clouds and fog, comprising a first optical particle sensor (2) for the time-resolved measurement of at least one parameter of particles (3) in a first sample volume (4) of air from an environment (5), with a first volume flow measuring device (6) for determining a flow rate of the air through the first sample volume (4), wherein a computing device (7) is provided, by means of which a presence of a cloud and / or fog in the air can be determined from the at least one parameter.

The present invention discloses an atmospheric environment sample collection device based on an unmanned aerial vehicle platform, including an unmanned aerial vehicle body, a pod, a power assembly and a vacuum sampling assembly; the vacuum sampling assembly is arranged in the pod, and mainly includes a vacuum sampling container, a negative pressure sampling port is arranged on the vacuum sampling container, a sealing plug is arranged on the negative pressure sampling port, a pull rod is arranged on the sealing plug, a spring is sleeved on the pull rod, and the two ends of the spring are respectively against the sealing plug and a support plate, the support plate is connected to the vacuum sampling container through brackets on both sides, a guide hole is arranged on the support plate, and the outer end of the pull rod is connected to the power assembly after passing through the guide hole. The present invention adopts the vacuum negative pressure principle to collect air samples in the atmospheric environment based on the technical foundation of the unmanned aerial vehicle platform, and the collection process is fast, efficient and highly flexible; the whole equipment is convenient and quick to assemble and disassemble, and can adapt to operations under different working conditions, so that unmanned aerial vehicles can be further developed and broken through in the field of atmospheric environment monitoring.

The present application relates to the detection method of peroxynitrate in the atmosphere, comprising: the six-way valve is adjusted to the sampling mode, the carrier gas and air inlet are opened, the carrier gas is swept to the chromatographic column and the electron capture detector in turn after passing through the first passage of the six-way valve, and the negative pressure device on the downstream side of the electron capture detector is opened at the same time; the air enters the sampling ring through the second passage of the six-way valve, and the excess air is discharged by using the air pump; the six-way valve is adjusted to the detection mode, the carrier gas enters the sampling ring through the third passage, the air sample in the sampling ring is taken out and brought into the chromatographic column; the PANs in the air sample are separated in the chromatographic column, and then enter the electron capture detector for detection, at the same time, the internal pressure of the electron capture detector is regulated and controlled by the negative pressure device to be stable negative pressure, the peak of the compound to be detected is accelerated, and the sensitivity of the electron capture detector to the detection is improved.

The invention relates to the technical field of environment monitoring, in particular to an air sampling device and method for environment monitoring, the air sampling device comprises a placement table, a lift-off platform and a sampling assembly, a winding motor is fixed in the placement table, one end of a lifting rope is connected with the output end of the winding motor, and the other end of the lifting rope is connected with a sampling mounting table; the helium bag is connected with the sampling mounting table; the sampling assembly comprises a gas inlet pipe, a sampling pump, a gas guide pipe, a sampling container, a sampling shell, a vacuum pump and a connector, the sampling shell is fixed on the sampling mounting table, the sampling container is rotatably arranged in the sampling shell, the gas guide pipe is slidably arranged on the sampling shell and used for being connected with the sampling container, the sampling pump is communicated with the gas guide pipe, and the gas inlet pipe is communicated with the sampling pump; the connector is arranged on the sampling shell in a sliding mode and used for being connected with the sampling container, the vacuum pump is connected with the connector, and air at different heights can be collected more conveniently so that air quality monitoring can be better carried out.

The utility model discloses a portable air sample collector, which relates to the technical field of air collection and comprises a portable air sample collecting tube, an annular rubber pad is movably sleeved on the inner wall of the portable air sample collecting tube, a piston is fixedly sleeved on the inner wall of the annular rubber pad, a pull rod is fixedly mounted at the top of the piston, and a handle is fixedly mounted at the bottom of the pull rod. A lower inlet and outlet sleeve is inserted into the bottom of the outer wall of the portable air sample collecting pipe, a lower inlet and outlet gas protective net is fixedly connected to the bottom of the outer wall of the portable air sample collecting pipe, and an annular flat sealing gasket is fixedly connected to the top of the inner wall of the lower inlet and outlet sleeve in a sleeving manner. When the lower gas inlet and outlet protective net is opened and closed, the adjusting screw sleeve is rotated by a tool, the lower inlet and outlet sleeve can move up and down under the action of threaded connection, and meanwhile, the position of the lower gas inlet and outlet protective net is conveniently plugged under the action of the annular flat sealing gasket and the limiting rubber reinforcing ring; and the problem of air leakage is avoided.

1. The name of this design product: air sample pretreatment equipment. 2. Purpose of this design product: used for air sample pre-treatment. 3. The design key point of this appearance design product lies in the combination of shape and pattern. 4. The picture or photo that best illustrates the design points: Stereoscopic diagram 2.

The utility model discloses an atmospheric VOC environment detection device which comprises a sleeve, the bottom of the sleeve is installed on a flat car, the inner wall face of the sleeve is in sliding connection with an inner cylinder bottom sliding block assembly, a center nut is arranged in an inner cylinder, the center nut is in threaded connection with a threaded shaft at the output end of a lifting motor, and the lifting motor is installed on the top face of a lifting disc. The lifting disc is slidably connected with the inner wall face of the inner cylinder, a hinge seat annularly arranged on the lifting disc is hinged to a probe rod assembly through a torsional spring, and a main air pipe of the probe rod assembly is connected to a detection mechanism on the flat car. The probe rod assembly in the device can convey a collected air sample into the detection mechanism to be analyzed, so that the concentration of VOC gas in the atmosphere is detected, the probe rod assembly can be collected into the inner cylinder in the device transferring process and further collected into the sleeve along with the inner cylinder, and the device has the advantages of being dustproof, adjustable and easy to transfer.

This invention discloses an atmospheric oxidizing indicator detection device, relating to the field of atmospheric detection technology. The proposed solution includes a housing, and further comprises: a condenser tube installed within the housing for dehumidifying incoming air; a splitter, the inlet of which is connected to the outlet of the condenser tube, for splitting the dehumidified air sample into a first branch and a second branch; a photodetector unit, comprising a photoreaction tube, a first mixing tank, and a first detector connected in sequence, the inlet of the photoreaction tube being connected to the outlet of the first branch of the splitter; and a catalytic detection unit, comprising a catalytic reaction tube, a second mixing tank, and a second detector connected in sequence, the inlet of the catalytic reaction tube being connected to the outlet of the second branch of the splitter. This overcomes the inherent time difference problem of sequential measurements using a single detector.

The utility model relates to a shipborne multi-dimensional air sample sampling device. Comprising a collecting box, a collecting cavity is formed in the collecting box, a sampling head is arranged in the collecting cavity, the upper end face of the collecting box is connected with a vertically-arranged air guide blade, and a collecting hole communicated with the collecting cavity and pointing to the sampling head is formed in the side face of the collecting box; a plurality of air holes are formed in the outer side wall of a base of the vacuum assembly, a vacuum pump is arranged in an inner cavity of the base, an adapter is of a columnar structure provided with a vertically-through communicating cavity, the adapter is detachably connected to the upper end of the base, an access hole is rotatably connected to the upper end of the adapter, and a collecting cavity, the communicating cavity and the vacuum pump are sequentially communicated. The horizontal plate and the air guide blades are arranged to change the direction of the sampling device, the direction can be adjusted in time according to small changes of the wind direction, and therefore the sampling direction can be adjusted according to the wind direction, the sampling device can be placed at different heights through the mast mounting holes, air samples can be collected at different height layers, and the sampling efficiency is improved. And the marine atmosphere monitoring efficiency is greatly optimized.

The utility model discloses a sampling device for indoor environmental pollution abatement, which comprises a bottom plate, universal wheels fixedly arranged at four corners of the bottom of the bottom plate, a handrail fixedly arranged on one side of the upper end face of the bottom plate, an air storage tank fixedly arranged on the upper end face of the bottom plate, an exhaust valve arranged at the upper end of the air storage tank, and an air pump fixedly arranged on the upper end face of the bottom plate. The air outlet end of the air pump is communicated with the air storage tank, the air inlet end of the air pump is communicated with a sampling mechanism, the sampling mechanism comprises a telescopic rod mechanism, a hollow ball is fixedly arranged at the upper end of the telescopic rod mechanism, and an inner cavity of the hollow ball is connected with the air inlet end of the air pump through a hose; compared with the prior art, the sampling device has the advantages that the sampling device adopts the design of the telescopic rod mechanism and the hollow ball, so that the position of the sampling head can be flexibly adjusted, the sampling position can be more accurately selected, a plurality of uniformly distributed air inlet holes are formed in the side surface of the hollow ball, air samples in multiple directions can be simultaneously collected, and the sampling efficiency is greatly improved; and the operation time is reduced.

The application relates to a power distribution system fire early warning device based on pyrolysis particle detection and a mounting method, which comprises a pyrolysis particle detection device including a sampling part and a monitoring part, the monitoring part includes a pyrolysis particle detector, the sampling part includes a multi-pass connector and a plurality of wind receivers, the multi-pass connector has a plurality of sample inlet joints and a sample outlet joint, and each wind receiver is connected with a sample inlet joint; the pyrolysis particle detector is connected with the sample outlet joint through a pipeline; the wind receiving pipe is fixed on the position facing the heat dissipation fan through a mounting plate and a supporting rod, the positive pressure formed by the heat dissipation fan on the wind receiving pipe enables the sampling part to collect and detect the air sample from the target power distribution equipment without negative pressure extraction or only with a small negative pressure; more negative pressure equipment does not need to be configured due to the increase of the pipeline, the cost is reduced, the multi-pass connector increases the interface flexibility, the pipeline is conveniently expanded in the later period, and the monitored power distribution equipment is increased.