The present invention relates to a steam sample concentrator and conditioning (SSCC) system. The SSCC finds use in concentrating impurities carried in steam (e.g., used in power generation and other industrial processes) and facilitating steam analysis.

Provided is a continuous isokinetic sampling device of a stack gas having a suction nozzle to which a cross-sectional area control device is attached, and a continuous automatic measurement system of fine dusts in the stack gas combined with the same, the device and system being configured to continuously separate and automatically measure the suspended particles into PM10 (Particulate Matter Less than 10 m) and PM2.5 (Particulate Matter Less than 2.5 m) by introducing a suction gas into a particle size separation device (cascade Impactor) at a constant flow rate of 16.67 l/min, simultaneously with removing an measurement error caused due to inertia force of the suspended particles by automatically adjusting the cross-sectional area of the suction nozzle to suck the sample at the same flow rate as that of the stack gas in the stationary source emissions.

The present invention relates to a steam sample concentrator and conditioning (SSCC) system. The SSCC finds use in concentrating impurities carried in steam (e.g., used in power generation and other industrial processes) and facilitating steam analysis.

A system capable of measuring particulates includes: a nozzle formed in the shape of a tube; a light measurement unit constituted by a light source supplied as energy and a photodetector and is provided adjacent to the nozzle; a probe having a hollow shape and into which one end of the nozzle is inserted; a particle measurement unit provided adjacent to the light measurement unit to measure the particulates introduced through the nozzle; an evaluation model unit linked to the particle measurement unit to evaluate the volume of the particulates on the basis of software; and an evaluation process unit linked to the evaluation model unit to evaluate each of a volume size distribution of the particulates, an integration with respect to the size of each of the particulates and a time, and the volume concentration of the particulates. Other components are also included in the system.

This portable air sampling apparatus includes a Venturi pump creating a vacuum in a suction inlet when compressed air circulates therein; a supply line supplying the Venturi pump with compressed air, including an electrovalve that controls circulation of compressed air in the supply line; a suction line to suction an air sample, having an air circulation member delimiting a chamber for removably receiving a substrate for capturing odorous molecules and suitable for circulating the suctioned air sample through the substrate; and an electronic unit, connected to the electrovalve, controlling its opening and closing so when the electrovalve is opened, compressed air circulates in the supply line through the electrovalve, while when the electrovalve is closed, compressed air circulation in the supply line, between upstream and downstream of the electrovalve, is interrupted by the electrovalve. This enables performing reliable inspections, while being practical and easy to use.

The present invention refers to a method for the isokinetic sampling of liquids and gases present in streams having many fluid phases, and to an apparatus suitable for achieving it. The method and apparatus have application in particular in the field of oil extraction, wherein, after the extraction of liquid and gaseous hydrocarbons possibly accompanied by water and suspended solids, it is necessary to know the composition of the mixture extracted and also the flow rate of the single phases.

Disclosed herein is an air collecting device (1) for a dust measuring system, the air collecting device (1) comprising: a housing (2) defining a first chamber (21) and a second chamber (22); an air inlet structure (3) opening into the first chamber (21) and being configured for providing an incoming air stream from the outside environment into the first chamber (21); an air outlet structure (4) configured for expelling air from the first chamber (21) and/or the second chamber (22); an adapter structure (5), the adapter structure (5) being configured for being connected with a dust sensor assembly, wherein the adapter structure (5) comprises a fluidic connection to the first chamber (21) and a fluidic connection to the second chamber (22); and a connecting portion (23) establishing a fluidic connection between the first chamber (21) and the second chamber (22); wherein the first chamber (21) and the second chamber (22) are partially separated by a separator wall (24); and wherein the first chamber (21) and/or the air inlet structure (3) are configured such that the incoming air stream is guided at least partially towards the adapter structure (5) and wherein the second chamber (22) is configured such that an air stream entering the second chamber (22) from the adapter structure (5) passes the second chamber (22) and is then guided into the first chamber (21) via the connecting portion (23).

Electrokinetic devices and methods are described with the purpose of collecting assayable agents from a dielectric fluid medium. Electrokinetic flow may be induced by the use of plasma generation at high voltage electrodes and consequent transport of charged particles in an electric voltage gradient. Actively growing mold releases the carbohydrate cell wall component (1.fwdarw.3)--D-Glucan into the air. The invention recognizes that the airborne fraction is that which affects respiratory health and selectively tests for a free form which is soluble in aqueous medium. The sample to be analysed is preferably collected by the electrokinetic propulsion method described, but any air sampling method such as filtration, impactor or impingement may be applicable.

A compound sampling system has a guiding assembly extending along a sampling path and a shuttle unit having a displacement mechanism engageable to the guiding assembly and configured to displace the shuttle unit onto the guiding assembly. The shuttle unit also includes at least one sampling component configured to monitor a gaseous substance and collect sampling data relative to the compound in the gaseous substance. The sampling system further includes a control system in communication with the shuttle unit. The control system includes a controller communicably coupled to the displacement mechanism and controlling the displacement of the shuttle unit along the sampling path. A method of sampling a compound uses the sampling system.

A sample fluid stream can be received from a main fluid stream through a nozzle of a probe located at least partially in the main fluid stream. The sample fluid stream can travel into the nozzle and a portion of the main fluid stream adjacent to the sample fluid stream can flow past the probe without entering the probe. The sample fluid stream can flow downstream within the probe, and a portion of the main fluid stream can flow downstream outside the probe. While receiving the sample fluid stream, a gas sheet can be directed from the probe, with the gas sheet flowing upstream against the main fluid stream.