A built-in multi-zone fast evenly mixed sampling device of a Selective Catalytic Reduction (SCR) outlet flue is provided. The device includes: a sampling component, comprising a sampling branch pipe disposed on an outer wall of the SCR outlet flue, a sampling pool connected with the sampling branch pipe and a slanting branch pipe connected between the sampling pool and the sampling branch pipe, wherein a sampling probe is disposed on the sampling pool; a dust cleaning component, comprising a flange disposed on an upper end of the sampling branch pipe, a connecting line disposed on the flange and a suspension iron disposed on a lower end of the connecting line, wherein a lower end of the suspension iron extends out of the sampling branch pipe; and a replacement component, disposed at the sampling pool.

A gas sampling apparatus including a housing having a housing wall and a housing opening. The gas sampling apparatus includes a sample system for extracting the gaseous sample, including a sample pipe having an opening enclosed by the housing wall and in fluid communication with the gaseous environment and filter means including a filter for filtering solid particles from the gaseous sample. The filter is enclosed by the housing wall and arranged at the opening. The gas sampling apparatus includes a central purge system to remove aggregates of solid particles deposited on one or more housing surfaces by a gaseous medium, wherein the central purge system includes a purge pipe including an outlet opening directed towards the housing opening and enclosed by the housing wall, wherein the sample system is arranged externally to the central purge system so that the sample pipe is separate from the purge pipe.

An exhaust gas dilution device according to an exemplary embodiment of the present invention includes a head part, ejector unit, a nozzle part, and a dilution part. The head part has a space part into which an exhaust gas flows and a through-hole formed through the center axis direction to be connected to the space part. The ejector unit is coupled to the head part and has a first discharge hole formed passing through the center axis direction to be connected to the through-hole and connected to a first inlet to which primary dilution air is supplied. The nozzle part is inserted into a first discharge hole through the through-hole and has a second discharge hole that penetrates in the center axis direction so that the exhaust gas flowed into the space part is sucked and ejected into the first discharge hole as the primary dilution air moves through the first discharge hole. The dilution part has a first flow path part into which a primary dilution gas, which is generated and discharged after the exhaust gas and the primary dilution air are mixed in the first discharge hole, flows, and a second flow path part connected to the first flow path part and guiding secondary dilution air to be mixed with the primary dilution gas, and generates a secondary dilution gas as the primary dilution gas and the secondary dilution air are mixed.

To uniformly dilute particulate matter contained in a sample gas, a diluter includes an inflow portion, a mixing portion, a discharge portion, a connection portion, and an introduction portion. The inflow portion allows a sample gas to flow in. The mixing portion has an inner diameter larger than that of the inflow portion, and mixes the sample gas with a dilution gas to generate a diluted sample gas. The discharge portion discharges the diluted sample gas. The connection portion has a first tapered part whose inner diameter increases from a side connected to the inflow portion toward a side connected to the mixing portion. The introduction portion introduces the dilution gas into an internal space from a position downstream of the connection between the first tapered part and the inflow portion.

The present invention relates to an aerosol sampling system operating at a high temperature and pressure, and in particular to a system which is able to sample and analyze an aerosol. The present invention aims to provide a system which is able to carry out measurements, for example, a sampling, an analysis, etc. at a high temperature and pressure, which was unavailable in the past since there is not any aerosol measuring system to sample and analyze at a high temperature and pressure.

The present disclosure is directed to methods and systems for creating a gas curtain inlet for a detector of a substance of interest. The methods and systems include introducing a carrier gas into an inlet to block out atmospheric air without having to make the inlet a sealed system.

The techniques disclosed in the present specification relate to devices, systems, and methods using the same that generate cigarette smoke and then separate and collect substances of the cigarette smoke generated into particulate and gaseous substances for the preparation of a whole cigarette smoke condensate, which may comprise: a cigarette mount on which one or more cigarettes are mounted; an automatic ignition device for igniting the one or more cigarettes; a cigarette smoke collection unit for collecting substances of cigarette smoke generated from the ignited one or more cigarettes; one or more cigarette smoke intake lines configured to suck the cigarette smoke; one or more cigarette smoke exhaust lines configured to discharge the cigarette smoke; and one or more collection unit connecting lines connected to the cigarette smoke collection unit.

A control cabinet arrangement for an exhaust gas measurement device. The control cabinet arrangement includes a first control cabinet which delimits a first interior space and a second control cabinet which delimits a second interior space. A first heat-generating component of the exhaust emission measurement device is arranged in the first interior space. A second component of the exhaust emission measurement device is arranged in the second interior space. At least one fluidic connection connects the first interior space and the second interior space. The second component is heatable by an air flow flowing between the first interior space and the second interior space.

The techniques disclosed in the present specification relate to devices, systems, and methods using the same that generate cigarette smoke and then separate and collect substances of the cigarette smoke generated into particulate and gaseous substances for the preparation of a whole cigarette smoke condensate, which may comprise: a cigarette mount on which one or more cigarettes are mounted; an automatic ignition device for igniting the one or more cigarettes; a cigarette smoke collection unit for collecting substances of cigarette smoke generated from the ignited one or more cigarettes; one or more cigarette smoke intake lines configured to suck the cigarette smoke; one or more cigarette smoke exhaust lines configured to discharge the cigarette smoke; and one or more collection unit connecting lines connected to the cigarette smoke collection unit.

A combustion analyzer system includes an analyzer unit, a primary analysis probe and one or more remote probes. The analyzer unit includes a condensation removal unit and two or more electrochemical sensors to detect at least oxygen and carbon monoxide. The analyzer unit or the primary analysis probe include a means for condensing and eliminating liquid in the combustion gas to be analyzed.