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 μm) and PM2.5 (Particulate Matter Less than 2.5 μm) 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.

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.

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 also includes a means for sealing or isolating the electrochemical sensor inputs to prevent oxidation of the reactive elements when the unit is not in use.

To provide a method with which it is possible to ascertain a gas concentration in a furnace rapidly, and to charge an amount of fuel and/or oxygen corresponding to the state within the furnace, and with which it is possible to reduce the device maintenance load. In order to solve the abovementioned problem, this method for analyzing components contained in flue exhaust gas of a furnace includes: a sampling step of collecting a portion of the flue exhaust gas from a flue; a dust removal step of using a centrifugal dust collecting device to separate out dust in the flue exhaust gas collected in the sampling step, to yield an analysis gas; a measuring step of measuring components in the analysis gas to obtain the concentration of carbon monoxide in the analysis gas; and an analysis gas discharging step of causing the analysis gas to be sucked by an ejector.

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.

Disclosed is a system and method for low-pressure, low-flow dilution extraction. The system includes an outer housing, an inner housing partially within a heating element, and a manifold connected to the inner housing, having taps for a sample nozzle and dilution nozzle, and a through hole connecting the sample and dilution nozzle taps to allow a sample gas from, e.g., a stack to mix with a dilution gas before being drawn at a low pressure towards a gas analyzer.

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.

A particle sensor is described. The particle sensor includes a laser module having a laser, and a detector configured to detect thermal radiation. The particle sensor has an optical apparatus that is configured to focus laser light proceeding from the laser module into a first spot and is configured to focus thermal radiation proceeding from the first spot into a second spot, a radiation-sensitive surface of the detector being located in the second spot, or behind the second spot in the beam path of the thermal radiation focused onto the second spot.

Disclosed is a system and method for low-pressure, low-flow dilution extraction. The system includes an outer housing, an inner housing partially within a heating element, and a manifold connected to the inner housing, having taps for a sample nozzle and dilution nozzle, and a through hole connecting the sample and dilution nozzle taps to allow a sample gas from, e.g., a stack to mix with a dilution gas before being drawn at a low pressure towards a gas analyzer.

An apparatus includes a sampling probe having a first portion and a second portion. The first portion is configured to penetrate inside a wall of a duct having an inner chamber that is configured to carry a gas stream containing particulate matter therethrough. The first portion is further configured to divert a sample of the gas stream from the inner chamber of the duet to the second portion that extends from the wall of the duct opposite the inner chamber. The second portion of the sampling probe is configured to direct the sample of the gas stream in a first direction with a second direction corresponding to a direction of the gravitational force of the earth. A first ray corresponding to the first direction forms an angle with a second ray corresponding to the second direction. The angle is less than 90 degrees.