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Method and device for the continuous and quantity-controlled liquid exchange in distillation plants and absorption refrigeration cycles
Method and device for the continuous and quantity-controlled liquid exchange in distillation plants and absorption refrigeration cycles
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机译:在蒸馏厂和吸收式制冷循环中进行连续和定量控制的液体交换的方法和装置
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摘要
The invention provides a method and apparatus for quantity controlled, continuous liquid exchange in distillation and absorption refrigerant circuits. In the method on the one hand the pressure of a volumetric liquid flow, to be supplied to the high pressure zone at a defined rate, of enriched starting solution is raised from a low level to a high pressure level, while on the other hand the mutually separated liquid flows (which in sum are equal in amount) to be removed from the high pressure zone, of the product condensate and of the depleted solution, are transferred from a high pressure level to a low pressure level. In a solution exchange apparatus the method utilizes mechanical energy of the liquid flows (which are to be depressurized and to be removed from the apparatus) and only requires a small external boosting device to overcome internal frictional and intercomponent leakage. The liquid flows that are to be depressurized are for this purpose cooled down prior to mechanical energy transfer to a value below the saturation temperature of their respective relaxation pressure level. The apparatus is a displacement apparatus. In the case of application to absorption refrigerant circuits it is preferably driven with refrigerant vapor.
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