Research On Performance Of Static Tangential Cyclone Gas-liquid Contaction And Separation Component

With the expansion of the scale of industrial production, the request of processing capacity and anti-flooding capacity of tower becomes much stronger. High capacity has been an important index. Tray is the core component of tower, therefore, development of novel high capacity tray is an effective means to improve economic benefits. Cyclone component and feeding liquid method of tray are designed and improved on the basis of previous foundation in this paper, static tangential cyclone gas-liquid contaction and separation component are proposed. Performance of static tangential cyclone gas-liquid contaction and separation component are studied through experiments and numerical calculations. The main works and conclusions are as following:Numerical calculation was conducted on static tangential cyclone gas-liquid contaction and separation components whose blade height are respective 57,66,79 mm with the software of computational fluid dynamics. The effect of flow field of velocity and pressure on the operation process in plate column was analyzed. Besides, the effects of blade height on the pressure drop and velocity of cyclone component were explored. The numerical simulation results demonstrate that pressure drop data of simulation correspond to the experimental data. Cycloning and sucking function are achieved by the low pressure area produced in the center of cyclone component. Under the same gas flow rate, the lower the height of the blade is, the higher the pressure drop and tangential velocity of the cyclone component becomes, and the stronger separation and anti-entrainment abilities get.The experimental equipments were manufactured and the platform was established. Hydrodynamic performances of tower tray were studied in the experimental tower with a scale of ?350×1650 mm. The results demonstrate that the improvement of feeding gas method can effectively reduce the pressure drop and the uneven distribution of gas phase. Dry pressure drop increases with the increasement of gas flow rate. Under the same gas flow rate, the lower the blade height is, the larger the dry pressure drop becomes; and the main cause of pressure drop is analyzed. The wet pressure drop increases with the increasement of F-factor. The lower the blade height is, the larger the wet pressure drop becomes.The operating conditions of trays with three different blade heights are determined by F-factor. It is weeping condition when the F-factor is below 11. The tower plate which blade height is 57 mm can work normally when the range of F-factor is between 35 and 44. The tower plate which blade height is 66 mm can work normally when the range of F-factor is between 30 and 53. The tower plate which blade height is 79 mm can work normally when the range of F-factor is between 24 and 53. The flooding velocity of the tray with cyclone gas-liquid contaction and separation component whose blade height is 79 mm is 39.2% higher than industrial scale distillation column, the operating velocity is 31.8% higher than that of industrial scale distillation column. The load performance diagrams of tower plates with different blade heights are contrasted and studied. The larger the blade height is, the wider the operating range becomes. The gas-liquid ratio of plate column which blade height is 79 mm ranges from 88 to 5900, it has wider operating range.