3 results about "Mass separation" patented technology

The present specification relates to the technical field of two-phase flow measurement, and particularly relates to a gas-liquid two-phase flow measurement method and device, computer equipment and a storage medium. The method comprises obtaining a measured volume flow, a measured mass flow and a measured density corresponding to a gas-liquid two-phase flow to be measured by a measurement device; collecting and calculating a first accurate density corresponding to a target liquid, and calculating a second accurate density corresponding to a target gas based on a gas pressure, a gas temperature and the target gas; substituting the measured volume flow, the measured mass flow, the measured density, the first accurate density and the second accurate density into a fitting formula to obtain fitting data; and processing the first accurate density, the second accurate density, the measured volume flow, the fitting data and the measured mass flow by using a mass separation formula to obtain a target gas mass flow and a target liquid mass flow corresponding to the target gas and the target liquid respectively, so that the mass flow of each phase can be determined conveniently and accurately.

A mass spectrometer including: a reaction chamber into which a precursor ion derived from a sample molecule is introduced; a collision gas supply part configured to supply collision gas to the reaction chamber; a radical supply part configured to supply hydrogen radicals, oxygen radicals, nitrogen radicals, or hydroxyl radicals to the reaction chamber; a dissociation operation control part configured to control operations of the collision gas supply part and the radical supply part to generate the product ions by collision-induced dissociation and radical attachment dissociation of the precursor ion inside the reaction chamber, an ion detection part configured to mass-separate and detect ions ejected from the reaction chamber, and a spectrum data generation part configured to generate spectrum data based on a detection result by the ion detection part.

This invention belongs to the field of lithium-ion battery safety technology and relates to a method for mass decoupling of multiphase ejections during battery thermal runaway. The method obtains the mass of non-condensable reactive gases through a gas analysis measuring tank, obtains the mass of the electrolyte droplets and solid particle mixture ejected during the safety valve opening phase by interrupting heating, and obtains the total mass of electrolyte vapor and non-condensable reactive gases discharged during the thermal runaway phase by continuous heating. Combining this with the total battery mass loss before and after thermal runaway, the method achieves staged mass separation of the multiphase ejections according to mass conservation, and further constructs the hydrodynamic simulation boundary conditions for the discrete phase model. This method can improve the accuracy of mass quantification of multiphase ejections during battery thermal runaway.