DEVICE FOR INDUSTRIAL ROLLING ON THE INTERNAL SURFACE OF BEARING TUBE OF SCREW SMOOTH CONTOURED LEDGES IN A BIMETALLIC RIBBED TUBE
The design and principle of act of the technological high-duty device for heating effective turbulizeres the energy carrier moving inside heat exchange bimetallic tubes with spiral aluminium ribs (BRT), flowed round outside a compulsory cross flux of ambient air are resulted. Similar BRT, but with a smooth-bore internal surface of a bearing pipe are now basic heat exchange an element of apparatuses of an air cooling (AVO) a fuel and energy and himiko-wood complex, in heat exchange sections organic liquids are chilled, парогазовые mixes and are condensed their steams in processes chemical, petroleum-refining industry; at cooling of the petroleum oil, carried rock gas. Modern BRT the high factor оребрения ф « 20-22 is peculiar that led to levelling of a thermal resistance to a convective heat exchange from external and internal parties BRT AVO. It follows from this that the subsequent martempering gabaritno-mass characteristics of apparatuses was possiblly an intensification of a convective heat exchange of a liquid contrary to the existing approach on raise first of all a convective heat exchange from the air party. The intensification of an internal convective heat exchange of organic liquids (benzine, kerosene, methanol, ethanol, parrafins) smooth contoured turbulizeres optimum parametres allows to increase thermal stream AVO in invariable gabarits by 7-15% without additional expenses of power. In connection with stated we develop the high-duty device, allowing to realise a way of a turbulization of a stream internal ledges on a bearing tube of outside diameter of 25 mm with thickness of a wall of 2.0-2.5 mm, thus on an external surface of a tube flutes which intensify contact heat exchange are formed. Speed of rolling ledges of an order of 1.5-3.0 m/min to what rollers on three rolleres, had on a round with an angle 120° from each other are applied.