24 results about "Air sampler" patented technology

The invention discloses a stabilizing support of an air sampler, and belongs to the technical field of environment monitoring equipment, the stabilizing support comprises a support body and a bearing platform used for bearing the sampler, the top of the support body is connected with the bearing platform through a universal spherical hinge assembly, and the universal spherical hinge assembly comprises a base, a universal ball head and a short supporting column; the universal ball head is connected with the bearing platform through a short supporting column, a gravity center adjusting bin is fixedly arranged below the bearing platform, a lantern ring type locking mechanism is arranged on the opening portion of the base, and three or more radial guide grooves are formed in the end face of the opening portion of the base in the circumferential direction of the base. Each radial guide groove is internally provided with a locking block capable of sliding along the groove, the locking lantern ring can be rotated to move in the axial direction of the base, and then the locking blocks are driven to synchronously move inwards along the radial guide grooves through the conical surface extrusion effect so as to tightly hold the universal ball head. The problems that in the prior art, leveling efficiency is low, locking is prone to loosening, and the anti-overturning capacity is poor are effectively and comprehensively solved.

One variation of a method includes, during a test period: triggering release of a tracer test load into air in an environment, according to a set of release parameters, by a dispenser arranged within the environment, the first tracer test load comprising a first concentration of tracers of a first type in solution; and triggering an air sampler, located in the environment, to record a timeseries of aerosol data representing amounts of aerosol particles detected at the air sampler during the test period. The method further includes: deriving a tracer signal, representing changes in amounts of tracers in air detected at the air sampler during the test period, based on the timeseries of aerosol data and the set of release parameters; based on characteristics of the tracer signal, characterizing a set of aerosol flow metrics representing behavior of aerosols in the environment during the test period.

1. Name of the product in this design: Microbial air sampler. 2. Purpose of this design: To detect microorganisms in the air. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the key design points: Design 3 3D diagram. 5. The bottom surface of this product is a part that is not easily seen or cannot be seen during use, so the bottom view of design 5 is omitted. 6. Design 3 is designated as the basic design.

The utility model belongs to the technical field of indoor environment detection, and particularly relates to an air sampling device for indoor environment detection, which comprises a frame, an air sampler body arranged at the top of the frame, a filter box arranged at the input end of the air sampler body, a filter component arranged in the filter box, and a rotating seat arranged in the middle of the top of the filter box. A threaded pipe is arranged at the top end of the rotating seat, an adjusting seat is arranged below the outer surface of the threaded pipe, and a sampling pipe is arranged above the outer surface of the threaded pipe. Through mutual cooperation of the filter box, the mounting frame, the sealing strip, the first filter screen, the second filter screen and the third filter screen, the filtering effect of the device is improved, the problem that dust in air is difficult to effectively filter when the device samples air is solved, and through mutual cooperation of a threaded pipe, an adjusting seat, a sampling pipe and a telescopic rod, the sampling efficiency is improved. The problem that when the device samples air, gas at different heights cannot be sampled according to needs is solved.

The present application relates to a sampling lid assembly for a particle monitoring system, preferably a microbiological gas (for example, air) sampler or airborne particle counter. The present application also relates to a particle monitoring system comprising such sampling lid assembly.

1. Name of the product in this design: Base of a microbial air sampler. 2. Application of this design: Overall application: for detecting microorganisms in the air; Local application: as a base for a microbial air sampler. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the key design points: Design 2 3D diagram. 5. The bottom surface of this design product is a part that is not easily seen or not visible during use, so the bottom view of Design 1 is omitted; the bottom surface of this design product is a part that is not easily seen or not visible during use, so the bottom view of Design 2 is omitted; there are no design points, so the top view of Design 1 is omitted; there are no design points, so the top view of Design 2 is omitted. 6. Design 2 is designated as the basic design. 7. Other matters requiring explanation: This design is a partial design. The part covered by the red semi-transparent layer in Design 1 is not within the scope of protection, and the part indicated by the dotted line in Design 2 is not within the scope of protection.

The present application relates to a sampling cap for a particle monitoring system, preferably a microbial gas (e.g., air) sampler or an air suspended particle counter. The present application also relates to a particle monitoring system comprising such a sampling cap and a method for a gas monitoring process using such a particle monitoring system comprising such a sampling cap.

1. Name of the product in this design: Cover of a microbial air sampler. 2. Purpose of this design: As a cover for a microbial air sampler. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the key design points: Design 2 3D diagram. 5. The right view of Design 1 is symmetrical to the left view of Design 1, so the right view of Design 1 is omitted. 6. Design 2 is designated as the basic design.

The utility model discloses an air sampler which comprises a supporting mechanism, an air exhaust mechanism, a sampling piece, a collecting piece and a sealing piece, wherein the air exhaust mechanism is fixedly arranged on the top surface of the supporting mechanism; a first air inlet is formed in the air exhaust mechanism, and the sealing piece is arranged between the sampling piece and the first air inlet; the sampling piece is of a hollow thin-wall structure with an opening in the top and sequentially comprises a first cylindrical part, a first conical part, a second cylindrical part, a second conical part and a third cylindrical part which are integrally formed and connected from top to bottom; the side wall of the first cylindrical part extends outwards to form a second air inlet, a top opening of the first cylindrical part forms a first air outlet, the first air outlet is correspondingly connected with the first air inlet, a bottom outlet of the third cylindrical part forms a second air outlet, and the collecting piece is connected to the second air outlet; through the reasonable structural design of the sampling piece, the spiral speed of air in the sampling piece is increased, so that the sampling rate of the sampler is increased.

The utility model discloses an indoor air sampler, which relates to the technical field of air samplers and structurally comprises a base, pulleys are fixedly mounted at the bottom of the base, an electric telescopic rod is fixedly connected to the top of the base, a fixed plate is fixedly connected to the top end of the electric telescopic rod, and a rotating plate is arranged on the top side of the fixed plate. A water tank is fixedly connected to one side of the top of the rotating plate, a transition cylinder is fixedly connected to the other side of the top of the rotating plate, a collecting cylinder is fixedly connected to the top of the transition cylinder, a cleaning mechanism is arranged in the collecting cylinder, and a connecting pipe is connected to the top of the water tank. According to the indoor air sampler, residual materials in air collected last time can be removed, air collected next time is prevented from being polluted, the collection quality of the sampler is improved, air at different heights and positions can be collected, errors during collection are reduced, and the collection precision is improved.

Implementations disclosed herein provide a compact and easy-to-maintain piece of downdraft equipment for use in facilities with limited floor space that includes a unique air sampler to ascertain the state of dirty air entering the downdraft equipment. The air sampler utilizes a removable portable air quality detector that can be moved to further locate the source of a contaminant when detected. The portable air quality detector may also be replaced when defective without disassembling the downdraft equipment.

The invention discloses a multidirectional air detection device for a chemical workshop and a detection method, and belongs to the field of air detection. The device comprises an automatic cart and an air sampling machine, sampling bottles and a placing assembly for installing the sampling bottles are installed on the periphery of the air sampling machine, a rotatable bearing table is arranged on the automatic cart, the bearing table rotates through a driving assembly, and a collecting assembly is arranged on the bearing table; the sampling bottle comprises a reaction tube and a gas inlet tube, and the reaction tube is sleeved in the gas inlet tube; the collecting assembly comprises a gas collecting hood and a breather pipe, the breather pipe is fixedly installed on the gas collecting hood and communicated with the gas collecting hood, one end of the breather pipe is connected with one end of the gas inlet pipe in a sleeving mode, and a gas inlet assembly is arranged on the breather pipe and drives gas in the gas collecting hood to enter the reaction pipe. Meanwhile, air in multiple directions in the chemical workshop is sampled, and the problem that a conventional air detector is difficult to realize classified detection of air in different directions in the chemical workshop is solved.

1. Name of the product in this design: Upper part of a microbial air sampler. 2. Application of this design: Overall application: for detecting microorganisms in the air; Local application: as the upper part of a microbial air sampler. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the key design points: Design 2 3D diagram. 5. The bottom surface of this product is a part that is not easily seen or cannot be seen during use, so the bottom view of Design 1 is omitted. 6. Design 2 is designated as the basic design. 7. Other matters requiring explanation: This design is a partial design. The part covered by the red semi-transparent layer in Design 1 is not within the scope of protection, and the part indicated by the dotted line in Design 2 is not within the scope of protection.

The utility model relates to the technical field of environmental monitoring, and discloses a portable environmental protection monitoring device which comprises a box body, a partition plate is fixedly arranged in the box body, a first EVA foam block is fixedly arranged at the bottom end of the partition plate, a first clamping groove is formed in the surface of the first EVA foam block, a second EVA foam block is fixedly arranged at the top end of the partition plate, and a second clamping groove is formed in the surface of the second EVA foam block. A second clamping groove is formed in the surface of the second EVA foam block, vertical plates are slidably connected to the two sides of the top end of the box body, and a positioning assembly for positioning the vertical plates is arranged in the middle of the top end of the box body. The telescopic height of the vertical plate can be adjusted by sliding the vertical plate, then the height of the air sampler main body can be adjusted, the vertical plate, the air sampler main body and the cutter can be stored in the box body by retracting the vertical plate into the box body, no space is occupied, and the air sampler is convenient to carry; the clamping groove I and the clamping groove II can be used for accommodating the air sampler main body and the cutter respectively.

One variation of a method includes, during a test period: triggering release of a tracer test load into air in an environment, according to a set of release parameters, by a dispenser arranged within the environment, the first tracer test load comprising a first concentration of tracers of a first type in solution; and triggering an air sampler, located in the environment, to record a timeseries of aerosol data representing amounts of aerosol particles detected at the air sampler during the test period. The method further includes: deriving a tracer signal, representing changes in amounts of tracers in air detected at the air sampler during the test period, based on the timeseries of aerosol data and the set of release parameters; based on characteristics of the tracer signal, characterizing a set of aerosol flow metrics representing behavior of aerosols in the environment during the test period.

The utility model discloses a device for testing sampling efficiency in occupational health, which comprises an acrylic box, a sample box and a sample box, wherein the acrylic box is used for simulating gas-state, vapor-state and aerosol-state chemical substance environments with different concentrations and is of a closed structure; the air sampling combination comprises an air sampler and an air sampling pipe communicated with the air sampler, and the air sampling pipe partially penetrates into the acrylic box; the at least two air collectors are connected to the air sampling pipe in series, are used for directly sampling gas, are positioned outside the acrylic box, are detachably arranged and are in a detached state during pretreatment. A feasible device is provided for a sampling efficiency test, the structure is simple, raw materials can be easily obtained, quantitative production can be achieved, and machining is convenient; on-site environments with different concentrations can be simulated, volatile target substances are effectively collected, and the collection efficiency is improved; and gas volatilization is carried out in the acrylic box, so that environmental pollution can be reduced.

The invention discloses a method for improving biological aerosol sampling efficiency, and relates to a biological aerosol collection technology in the field of environmental science, and the method comprises the following steps: (1) using a quartz glass fiber filter membrane (the size is 250 mm * 230 mm, and the aperture is 2.2 [mu] m) to cooperate with an air sampler to collect microbial particles; (2) physically stripping substances on the surface layer of the hair surface of the filter membrane by adopting an ultraviolet sterilized polyethylene glycol terephthalate (PET) hard brush (the length of brush hair is 2.85-3.15 cm), and collecting microorganisms; and (3) extracting DNA through a soil DNA kit, and combining fluorescence quantification and agarose gel electrophoresis detection. According to the method, a quartz film rough surface-supporting surface layered structure is creatively utilized, efficient collection of microbial particles is achieved through physical stripping, the limitation of a traditional chemical elution method is overcome, and the DNA recovery rate and the operation efficiency are remarkably improved; the sampling efficiency is superior to that of a mixed cellulose ester filter membrane, and the cost benefit and the adaptability of a high-flow sampler are both considered. The method can be widely applied to the fields of environmental monitoring and public health.

The invention belongs to the technical field of ambient air monitoring, and provides a semi-passive air sampler which comprises a main shell, a sampling pipe is detachably connected in the main shell, the sampling pipe is filled with a gaseous pollutant adsorbent, an air entraining head is arranged above the main shell, the air entraining head is communicated with the air inlet end of the sampling pipe, and the air entraining head is communicated with the air inlet end of the sampling pipe. A lifting assembly is arranged between the air entraining head part and the main shell; the auxiliary shell is detachably connected to the main shell through a buckling piece, an air outlet channel is formed in the auxiliary shell, one end of the air outlet channel is communicated with the air outlet end of the sampling pipe, the other end of the air outlet channel is vertically communicated with an air cylinder, a solar heating mechanism is arranged in the air cylinder, and the solar heating mechanism is used for heating air at the bottom of the air cylinder; and air in the air outlet duct is driven to flow into the air duct. Passive driving can be achieved through solar energy, semi-passive air collection is achieved, and meanwhile the sampling height can be flexibly adjusted.

The utility model discloses an air sampler A-frame convenient to disassemble and assemble, and relates to the technical field of A-frames, the air sampler A-frame comprises a top plate, connecting seats are uniformly fixed at the bottom of the top plate, supporting legs are rotatably arranged in the connecting seats, and first rotating blocks are fixed on the inner sides of the supporting legs; a connecting rod is rotatably arranged on the outer side of the first rotating block, a sliding rod is fixed to the middle of the bottom of the top plate, a connecting ring is slidably arranged on the outer side of the sliding rod, second rotating blocks are evenly fixed to the outer side of the connecting ring, and a disconnecting mechanism is arranged on the top of the top plate. According to the air sampler triangular support convenient to disassemble and assemble, by means of the arrangement of the disassembling and connecting mechanism, during assembling, an air sampler and the connecting plate are firstly assembled through screws, so that the situation that the air sampler and the connecting plate are connected through the screws during assembling each time is avoided, the connecting complexity is fully reduced, disassembling and assembling are convenient, time and labor are saved, and the practicability of the device is improved.

1. Name of the product in this design: Gas Flow Calibrator. 2. Application of this design: Used for calibrating the flow rate and pressure of sampling and gas detection instruments such as VOCs samplers, air samplers, particulate matter samplers, and smoke and dust testers. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The utility model discloses an indoor four-channel constant flow atmosphere sampler, and particularly relates to the technical field of atmosphere sampling, the indoor four-channel constant flow atmosphere sampler comprises a reinforcing tube, a flow guide collecting assembly is arranged on the reinforcing tube, the flow guide collecting assembly comprises two gas distributing tube bodies which are arranged at one end of the reinforcing tube and used for flow guide, and the two gas distributing tube bodies are oppositely arranged. According to the utility model, through the arrangement of the flow guiding and collecting assembly, gas conveyed by each guide pipe can be easily conveyed into the corresponding flow dividing gas channels, so that inaccurate detection caused by mixing of the gas is avoided, and through the rotation of the flow guiding blades, gas flows in each flow dividing gas channel can be simultaneously extracted and conveyed to the detection core for detection, so that the detection accuracy is improved. The function of extracting and detecting gas in multiple directions at the same time is achieved, and the detection efficiency is improved.

The invention discloses an air sampler for air detection and a use method, and relates to the technical field of air sampling, the air sampler comprises a shell and a separation assembly, the shell is internally provided with a supporting assembly, the supporting assembly comprises a positioning rod, and the two ends of the positioning rod are fixedly connected with the two sides of the inner wall of one end of the shell; the outer wall of the positioning rod is rotationally connected with a supporting rod, the bottom end of the supporting rod is eccentrically and fixedly connected with a limiting rod, and the top end of the supporting rod is fixedly connected with a fixing disc. The supporting rod rotates on the outer wall of the positioning rod to be perpendicular to the shell, so that the supporting rod is moved out of the shell, the limiting rod at the bottom end of the supporting rod makes contact with the bottom face of the shell, the two inclined supporting rods rotate on the outer wall of the side rod, the bottom ends of the two inclined supporting rods make contact with the diagonal planes of two supporting blocks, and therefore the supporting rod is fixed; when the air sampler is not used, the supporting rod can be placed in the shell, so that the air sampler is convenient to transport and store.

The utility model belongs to the technical field of air sampling equipment, particularly relates to air sampling detection equipment, and aims to solve the problem that subsequent detection is affected due to the fact that a transmission pipeline is easily loosened or leaks air when the transmission pipeline is directly inserted and sleeved on an air path pipe or a side pipe of a sampling bottle in the using process of an air sampler. According to the scheme, the air sampler comprises an air sampler body, the top of the air sampler body is provided with an air path pipe and a groove which are matched for use, and a sampling bottle is clamped in the groove. During use, the fasteners arranged at the two ends of the first conveying pipe and the second conveying pipe are matched with the tightening rings and the rubber backing rings, so that loosening or air leakage of the conveying pipeline is effectively prevented, the sealing performance in the air sampling process is ensured, and the accuracy of subsequent detection results is improved; by arranging the drying bottle, the collected air is subjected to drying pretreatment, so that the interference of moisture to subsequent detection is avoided, and the accuracy and efficiency of subsequent analysis and detection are improved.

The utility model discloses a temperature acquisition device for detecting the thermal performance of a fan coil, which comprises an air sampler, a temperature sensor, a temperature acquisition box and a fan, the air sampler is communicated with the temperature acquisition box through an air pipe, the bottom of the temperature acquisition box is provided with a water storage box, and the water storage box is communicated with the air pipe. The water storage box is communicated with the water storage tank through a communicating vessel, the temperature sensors are installed in the temperature acquisition box and comprise a dry-bulb temperature sensor and a wet-bulb temperature sensor, a gauze sleeve is arranged on the surface of the wet-bulb temperature sensor, the lower end of the gauze sleeve extends into the water storage box, and the upper end of the gauze sleeve is connected with the water storage tank. The temperature collecting box is further communicated with the fan, and a replaceable steel wire mesh is arranged at an air outlet of the fan. According to the utility model, the stability and the accuracy of data acquired by the temperature sensor in the process of testing the thermal performance of the fan coil can be ensured.