13 results about "Infrared gas analyzer" patented technology

The invention belongs to the technical field of gas concentration detection, and particularly relates to a rotary kiln infrared gas analyzer which comprises a shell assembly, a heat dissipation device is installed on the shell assembly, a gas suction device is installed at one end of the shell assembly, a filtering device is fixedly connected to the gas suction device, and a supporting plate is fixedly installed in the shell assembly. A detection gas chamber, a reference gas chamber and a correction gas chamber which are arranged in parallel are fixedly arranged on the supporting plate in a penetrating manner, and structures such as a processor, a controller, a temperature sensor, a gas pressure sensor, an electric heating wire and the correction gas chamber are arranged; the air temperature in the correction air chamber is heated to be the same as the air temperature in the detection air chamber through the electric heating wire, the air pressure in the detection air chamber is adjusted to be the same as the air pressure in the heated correction air chamber through the cooperation of the air pump and the exhaust valve, and then the detection result is calculated in equal proportion. The concentration of the target gas in the flue of the rotary kiln in the normal temperature state can be obtained, and the accuracy of a detection result is greatly improved.

The multi-component non-dispersive infrared gas analyzer comprises a shell, a light source part, a detector and a base, a containing cavity is formed in the shell, the light source part is arranged at one end of the containing cavity, the detector is arranged at the other end of the containing cavity, a gas cavity is arranged between the light source part and the detector, and the base is arranged in the containing cavity. A detachable base is arranged between one end of the gas chamber and the detector, and a detachable optical filter assembly is arranged on the base. According to the multi-component non-dispersive infrared gas analyzer with the replaceable optical filter, through the detachable base and the detachable optical filter assembly, the optical filter assembly adaptive to different detected gases can be rapidly replaced, flexible switching of multi-component gas detection is achieved, the equipment development and use cost is reduced, and the operation process is simplified; meanwhile, due to the axial layout of all the structures in the containing cavity, a stable detection light path is constructed, the sealing performance and stability of the detection environment are guaranteed through the closed gas cavity, and the signal intensity and basic precision of gas concentration detection are effectively improved.

The utility model discloses a biomass thermal cracking three-phase product high-efficiency separation device which comprises a cracking assembly which comprises a sliding rail type tubular furnace, and biomass raw materials are heated to a set cracking temperature through the sliding rail type tubular furnace and generate mixed products of gas, liquid and solid particles; the cooling assembly comprises a snakelike condenser and a liquid phase collecting bottle, and liquid phase components in the mixed product are separated through the snakelike condenser and stored in the liquid phase collecting bottle; the detection assembly comprises an on-line infrared gas analyzer, and gas components in the mixed product are detected through the on-line infrared gas analyzer; the purification assembly comprises an ethanol solution bottle and an aqueous solution bottle, alcohol-soluble gas components in the gas-phase components are absorbed through an ethanol solution in the ethanol solution bottle, and water-soluble gas components in the gas-phase components are absorbed through an aqueous solution in the aqueous solution bottle. According to the utility model, efficient separation of three-phase products of biomass thermal cracking is realized.

To improve work efficiency during manufacturing and maintain good sensitivity over the long term. [Solution] The infrared gas analyzer detector (20) comprises first to third infrared transmitting windows (21 to 23) that transmit infrared rays, a front gas chamber forming body (27) to which the infrared transmitting windows are joined to form first and second gas chambers (31, 32), and a sensor unit (60) housed in a containment space (62) communicating with each gas chamber to detect the concentration of the gas to be measured. The gas chamber forming body comprises a frame (81 to 83) to which the first to third infrared transmitting windows are joined, and a main body (34) that forms each gas chamber and to which the first to third frame (34) is joined. The infrared transmitting windows and the frame are joined at room temperature via metal layers (86, 88) formed in the joining regions of each.

The present application relates to carbon dioxide detection technology field, specifically to a kind of petrochemical combustion carbon dioxide content detection equipment, including non-dispersive infrared gas analyzer, the non-dispersive infrared gas analyzer outside is shell, the non-dispersive infrared gas analyzer is provided with gas inlet, exhaust port, the gas inlet is inserted with sampling tube, one end of the sampling tube is sampling head, the inside of the sampling head is provided with the backflow prevention structure of gas, when potential backflow occurs, reverse airflow attempts to enter from the small mouth end of fairing, at this time, the flow resistance of intercepting groove is substantially increased, due to the existence of intercepting groove, reverse airflow needs to overcome greater resistance to pass through, and the gas of backflow bounces back after impacting the baffle at one end of fairing, realize the blocking when gas backflow, the design of conical fairing also shrinks the passage of backflow gas, further improve the resistance, therefore effectively inhibit the reverse flow of gas to prevent its backflow.

This utility model relates to the field of gas analyzer technology, specifically to an infrared gas analyzer, comprising: a housing, a detection component, and a heat insulation component; the detection component is placed in the inner cavity of the housing and is used to detect gas concentration; the heat insulation component is connected to the housing, and a mounting cavity is formed between the heat insulation component and the housing, with the detection component located within the mounting cavity. This utility model, by installing the heat insulation component on the housing, forming a mounting cavity between the heat insulation component and the housing for mounting the detection component, and placing the detection component within the mounting cavity, prevents the detection component from directly contacting the external environment, thereby isolating the detection component from interference from external ambient temperature, and thus avoiding the influence of ambient temperature changes on the output intensity of infrared light, improving measurement accuracy.

The utility model discloses an infrared gas analyzer for measuring rock stratum carbon dioxide leakage, which relates to the technical field of infrared gas analyzers and comprises an analyzer main body, a gas inlet pipe and an exhaust pipe are arranged on the front end face of the analyzer main body, and a filtering mechanism matched with the gas inlet pipe and the exhaust pipe is arranged at the front end of the analyzer main body. The filtering mechanism comprises a fixed seat, a turntable, a filter element and a fixed cover, the fixed seat is fixedly mounted on the front end surface of the analyzer main body through bolts, the turntable is mounted at the front end of the fixed seat and is rotationally connected with the fixed seat, the filter element is detachably mounted on the turntable, and sliding chutes matched with the turntable are formed in the side end surfaces of the air inlet pipe and the exhaust pipe. The filter has the advantages of automatically cleaning the filter element and quickly replacing the filter element, and solves the problems that dust is accumulated on equipment due to the fact that dust and other particulate matters enter the analyzer, time and labor are consumed when the filter is frequently replaced, and the continuous monitoring work flow is interrupted in the prior art.

The invention relates to the technical field of vehicle refrigerant analysis, and discloses a vehicle refrigerant analysis method based on a Fourier transform technology, which comprises the following steps: acquiring an infrared absorption spectrum of a calibration gas with known concentration; the method comprises the following steps: determining a model range, preparing calibration gas, preselecting a quantitative wave band, preprocessing and calibrating an instrument, collecting spectral data, fitting a verification model and measuring a quantitative limit, so as to construct a quantitative relation model of a refrigerant light absorption signal response value and concentration; based on the quantitative relation model, introducing a gas sample in the leakage test cabin into a Fourier infrared gas analyzer, collecting spectrums in real time according to modeling consistent parameters, and recording moments to realize real-time online monitoring analysis of the refrigerant; the technical problems that in the prior art, quantitative precision is low, and real-time online monitoring cannot be achieved are solved.

The invention relates to a gas analyzer module (1) for analyzing a measurement gas (7), comprising:-a light-pneumatic detection system (11) designed to detect infrared radiation (2) radiated through the measurement gas (7), the light-pneumatic detection system (11) comprising a pressure or flow-sensitive sensor (14), and the light-pneumatic detection system (11) being designed to generate a measurement signal, the measurement signal being detected by the light-pneumatic detection system (11); -a compensation system (6, 13a, 13b) designed to generate a compensation signal in order to compensate for disturbance effects, the compensation system comprising further pressure or flow-sensitive sensors,-an analysis system (20) designed to generate a measurement result as a function of a difference between the measurement signal and the compensation signal, and-a reflection system (15, 16) designed to reflect the measurement result on the basis of the difference between the measurement signal and the compensation signal. The reflector is designed to reflect back the infrared radiation (2) that has passed through the optical-pneumatic detection system (11) to the optical-pneumatic detection system (11). The module (1) is characterized in that the reflection system (15, 16) comprises:-a reflection plate (17) comprising a rough surface designed to diffuse back the infrared radiation (2) radiated onto the reflection plate (17) to the light-pneumatic detection system (11), and-one or more spacers (18a, 18b, 18c, 18d, 18e, 18f) designed to provide a specific distance (19) between the reflection plate (17) and the light-pneumatic detection system (11), to determine the amount of infrared radiation (2) diffusely reflected back to the opto-pneumatic detection system (11).

The utility model relates to gas infrared gas analyzer technical field, and disclose a kind of high-precision gas analyzer.The high-precision gas analyzer includes: flue pipe, the inside fixed mounting of flue pipe has fixed plate, the top fixed mounting of flue pipe has top cover, the outside fixed mounting of flue pipe has support ring, the top fixed mounting of support ring has PLC controller, the left side of flue pipe is inserted and installed with infrared gas analyzer, the left side of flue pipe is inserted and installed with barometer, barometer is located the top of fan blade, the air pressure size below the fixed plate in flue pipe can be monitored in real time, and monitoring data is transmitted to PLC controller, set air pressure threshold interval by PLC controller, by PLC controller to compare actual data with set threshold value, and according to comparison data to adjust the rotational speed of driving motor and the rotation angle of movable plate, to adjust internal flue gas air pressure, so that air pressure is kept at proper size, to facilitate infrared gas analyzer to analyze flue gas.

A water vapor interference simulation device for an infrared gas analyzer belongs to the technical field of auxiliary detection equipment and comprises bottled gas, a flow sensor, a pressure sensor, a temperature sensor, a humidity sensor, a voltage display meter, a valve, a bottom plate, steam generation equipment, a voltage regulation module and a gas generation tube. Bottled gas, a flow sensor, a pressure sensor, a temperature sensor, a humidity sensor, a voltage display meter, a valve, steam generating equipment and a voltage adjusting module are included, a gas generating pipe is installed on a bottom plate, and each set of steam generating equipment comprises a heating cylinder, an electric heating pipe, a safety valve, a water adding pipe and a liquid level switch. The device has a compact structure, is convenient to use, can synchronously input gases obtained by uniformly mixing water vapor with nitrogen or carbon monoxide gas at different temperatures and different concentrations into the infrared gas analyzer under the combined action of related structures, and plays a favorable technical support for multi-mode calibration of performance data of the infrared gas analyzer.

To improve work efficiency during manufacturing and maintain good sensitivity over the long term. [Solution] The infrared gas analyzer detector (20) comprises first to fourth infrared transmitting windows (21 to 24) that transmit infrared rays, a front gas chamber forming body (27) and a rear gas chamber forming body (28) to which the infrared transmitting windows are joined to form first to third gas chambers (31, 32, 49), and a sensor unit (60) housed in a containment space (62) communicating with each gas chamber to detect the concentration of the gas to be measured. The gas chamber forming body comprises a frame (35a to 35c, 52) to which the first to fourth infrared transmitting windows are joined, and a main body (34, 51) that forms each gas chamber and to which the first to fourth frame (34 to 51) is joined. Each infrared transmitting window is joined to the frame via a joining member (45 to 48) which is made of low melting point glass.

The application discloses an environmental pressure compensation device of an infrared gas analyzer under constant temperature conditions, which comprises a sealed box body, a hollow cylindrical working gas chamber shell is arranged in the sealed box body, the upper surface of the working gas chamber shell is attached to the top end upper surface of the sealed box body, the lower surface of the working gas chamber shell is attached to the lower surface of the sealed box body, the working gas chamber shell divides the inside of the sealed box body into a working gas chamber and an adjusting gas chamber, and the infrared gas analyzer is arranged in the working gas chamber. The application also provides an environmental pressure compensation method of the infrared gas analyzer under constant temperature conditions. The environmental pressure compensation device and the compensation method of the infrared gas analyzer under constant temperature conditions reduce the influence of temperature and pressure changes in the environment of the infrared gas analyzer on the measurement accuracy, and provide a theoretical method and technical equipment for industrial environmental gas concentration measurement.