AIR/WATER PURGER FOR REFRIGERATION PLANT

摘要

The present invention relates to an apparatus for recovery of refrigerant in connection with a refrigeration plant, which apparatus comprises at least one a recovery tank, which recovery tank comprises both liquid and evaporated refrigerant, where the recovery tank comprises heating means for evaporating refrigerant. It is the object of the invention to provide an efficient purge apparatus, with an efficient water purger and an efficient non-condensable gas purger where the loss of refrigerant from the refrigeration plant is minimised. This can be achieved if the recovery tank comprises a shell, which shell is open at the bottom, and which shell at the top comprises a restricted outlet where the shell surrounds the heating means, which heating means evaporate refrigerant inside the shell, which evaporated refrigerant is discharged through the restricted outlet, which evaporated refrigerant partly surrounds the heating means. In this way boiling of refrigerant will occur around the heating means inside the shell where a bubble of evaporated refrigerant is formed in the top of the shell. The bubble of evaporated refrigerant is discharged from the shell through the restricted outlet. The content of water in the liquid refrigerant remains as liquid water and is not evaporated by the boiling. So the water content in the recovery tank increases.