HEAT PUMP CONVERTER FOR SALT WATER (VERSIONS) Russian patent published in 2009 - IPC C02F1/00 

FIELD: treatment facilities.

SUBSTANCE: invention concerns salt water conversion aggregates, particularly creation of heat pump converter for salt water, and can be applied in local water supply for settlements, residential, public and industrial buildings. Converter includes salt water evaporation chamber, fresh water condensation chamber, closed circuit of working fluid with compressor and 'working fluid to salt water' heat exchanger unit inside evaporation chamber for salt water heating, as well as 'working fluid to fresh water vapour' heat exchanger unit inside condensation chamber. Compressor output is connected to input of 'salt water to working fluid' heat exchanger for salt water heating. Working fluid output from 'salt water to working fluid' heat exchanger for salt water heating is connected to working fluid input of 'working fluid to fresh water vapour' heat exchanger of fresh water condensation chamber. Working fluid output from 'working fluid to fresh water vapour' heat exchanger for fresh water condensation is connected to compressor input. Circuit of salt water fed to demineralisation includes heating chamber with salt water feeding system with pump connected to its lower part and heated salt water outlet system connected to its upper part and leading to upper part of additional scrubber. Scrubber is equipped with feeding system for heated salt water coming from above to sprayers mounted in upper part of the scrubber for spraying heated salt water in the bulk of scrubber. Also the scrubber features air feeding system leading from compressor below by counterflow against the heated salt water bulk sprayed from above, salt water spillway system bringing salt water with increased salt concentration down, and air discharge circuit taking air saturated with fresh water vapour up from the scrubber to fresh water vapour condensation chamber holding 'working fluid to fresh water vapour' heat exchanger included in the closed circuit of working fluid. In the second version, fresh water vapour condensation chamber features additional 'salt water to heated fresh water' heat exchanger placed below 'working fluid to fresh water vapour' heat exchanger, for preliminary heating of salt water fed for demineralisation, including salt water feeding circuit with a pump. Heated salt water output from vapour condensation chamber is connected to salt water heating chamber with 'salt water to working fluid' heat exchanger inside. Output system feeding heated salt water to upper part of additional scrubber is connected to upper part of salt water heating chamber.

EFFECT: reduced specific energy consumption for salt water conversion; improved environmental safety of salt water conversion process; possible extension of performance range of conversion aggregates, enhanced aggregate performance due to a possibility of total process automation.

7 cl, 2 dwg