METHOD TO DEFROST AIR COOLER OF REFRIGERATING PLANT Russian patent published in 2013 - IPC F25D21/06 F25B47/02 

FIELD: power engineering.

SUBSTANCE: defrosting method includes periodical supply of heat into an inner volume of an air cooler, creation and measurement of a directed through light flux in an interfin space of the air cooler. In process of commissioning after installation of the air cooler they measure the initial value of the light flux in the refrigerating chamber. Afterwards the refrigerating plant is started, and light flux variation is controlled as the air cooler operates in the refrigerating chamber in process of its reaching the specified temperature mode. The thickness of frost in the interfin space of the air cooler is monitored visually, and when the maximum permissible thickness of frost is achieved, the critical value of the light flux is measured and recorded, at which during further operation of the air cooler they supply heat into the inner volume of the air cooler. At the same time they monitor variation of the specified light flux, and whenever the light flux achieves the initial value, they stop heat supply.

EFFECT: using this invention makes it possible to reduce power inputs and time for thawing of air coolers during operation of air coolers.

5 dwg