Vakuumnyy teplonasosnyy distillyator, osobennosti raboty i raschet

The urgency of the problem is linked with the increase of the world need in fresh water and plants for its production. The most widespread are membrane (reverseosmotic) and distillation methods of desalination. The authors examined the last cited method based on the water phase transformation. A mathematical model of a nonstationary heat and mass exchange process of a singlestage vacuum distillation plant that allows analyzing in detail the factors influencing the operation of such systems as well as optimizing the regimes and operation parameters and calculating the time of acceleration is offered in the paper. A diagram of a singlestage evaporator desalination installation operating according to a flow chart with mechanical vapour compression based on the fast roots vacuum pump is offered. The heat transfer regimes are estimated and the coefficients of heat transfer under water vapor evacuation are calculated. The authors examined the question concerning the necessity to confirm experimentally the mathematical model offered. Keywords: desalination, distillation, heat pump, vacuum heat pump water distillers, mechanical vapour compression, roots vacuum pump.

опреснение, дистилляция, тепловой насос, вакуумные теплонасосные опреснители, механическая компрессия пара, двухроторный вакуумный насос типа Рутс