4 results about "Smoke aerosol" patented technology

This invention discloses an integrated prediction method and system for fire spread coupled with smoke and meteorological feedback. The method first estimates forest fire emission parameters in real time based on satellite remote sensing data and converts them into spatiotemporal dynamic emission fluxes identifiable by the numerical weather chemistry (WRF-Chem) model. Grid interpolation is then used to match the WRF-Chem meteorological and chemical grid. Secondly, based on WRF-Chem simulations, the bidirectional coupling process between smoke aerosols and the meteorological field is simulated to generate a dynamic meteorological field incorporating smoke radiation feedback. Finally, the dynamic meteorological field is input into the weather-wildfire coupled simulation and the WRF-Fire weather research and forecasting model to simulate the feedback effect of smoke on fire spread. This invention reveals for the first time an aerosol-dominated positive feedback chain: fire emissions, through the synergistic effect of thermodynamic heating and radiative forcing, provide scientific support for disaster prevention decision-making and improve emergency response efficiency.

This utility model provides an embedded smoke chamber, comprising: a chamber body, a top cover, side plate A, and side plate B; the chamber body has a viewing window; side plates A and B are respectively sealed and installed at the openings on two opposite sides of the chamber body; light-transmitting windows are installed on side plates A and B; the top cover can be freely opened and is sealed and installed on the top of the chamber body; the top cover is provided with a quick-feeding hole and a sampling hole (air outlet), and a variable frequency fan is installed on the lower surface; the chamber body is embedded in the sample chamber of an optical property detection and analysis instrument through a pin and hole positioning structure, and the light source of the instrument is optically coaxial with the two light-transmitting windows. This utility model has a simple structure, multiple functions, and strong adaptability. It can not only realize the recovery of reusable samples, but also reduce the damage of aerosol test samples to the testing instrument, and well meet the testing and analysis needs of optical properties and particle size characteristics of smoke aerosol particles, showing good application prospects in the field of optical detection technology.

The utility model provides a double-bin atomizer which comprises a first oil bin, a second oil bin, a first atomizing assembly and a second atomizing assembly, a first atomizing medium is stored in the first oil bin, a second atomizing medium is stored in the second oil bin, a first airflow channel is arranged in the first oil bin, and a second airflow channel is arranged in the second oil bin. The first airflow channel is communicated with the second airflow channel, the first atomizing assembly is used for atomizing a first atomizing medium to form smog aerosol which enters the first airflow channel, and the second atomizing assembly is used for atomizing a second atomizing medium to form smokeless aerosol which enters the second airflow channel; one of the first atomization assembly and the second atomization assembly works or the first atomization assembly and the second atomization assembly work at the same time. The two oil bins are arranged, smokeless aerosol is formed after atomization of one oil bin, and the smoke or smokeless effect is achieved by switching the working oil bins. The satisfaction of smoke appearing when a user smokes can be met, the smoking set can be continuously used by switching to a smoke-free bin for atomization in a smoke-free area, and the use range is widened.

The invention provides a smoke aerosol detection device based on a hyperspectral technology and a cigarette quality evaluation method. The smoke aerosol detection device comprises a smoke aerosol unit, a hyperspectral data acquisition unit, a light source unit and a measurement cavity, the smoke aerosol unit is used for generating aerosol with set concentration and enabling the aerosol to flow through the measuring cavity according to set flow velocity; a light incident port and a hyperspectral data acquisition window are respectively arranged on two vertical side parts of the measuring cavity; the light source unit comprises a light source and a slit assembly and is used for irradiating area array light beams into the measuring cavity; the hyperspectral data acquisition unit comprises a filter switching assembly and a camera and is used for acquiring hyperspectral data of smoke aerosol area array distribution in the measuring cavity. The scheme has the advantages that the spectral information of the smoke aerosol can be more comprehensively obtained, the components and distribution conditions of the smoke aerosol can be accurately reflected, and the method can be used for cigarette quality evaluation.