Together with NPC "Anode " the Dzerzhinskhimmash has mastered essentially new patented design of heat-exchange surface that on parameters considerably exceeds the units applied now. The design advantages include: simplicity, modularity; self-compensation to temperature expansions allows to increase reliability and to provide tightness at long operation with high pressure and fast temperature changes. This design could be successfully used as regenerator and heat utilizers in gas-turbine systems used for gas transportation. The heat-carrier, moving on tube space and flowing over the tube bunch, is broken into set of separate jets that then partially twist and mix up together all the time. This leads to intensive heat mass exchange between a boundary layer and a stream. At the same time the heat-carrier, passing thru coils, is influenced by mass forces that cause secondary streams in the form of micro-whirlwinds directed from a wall of coil, and increase the heat exchange intensity. Application of intermediate modules of heat exchange elements allows using pipes of smaller size.Operation reliability is provided due:
- Thermoplastic heat exchange coil-shaped surface, providing self-compensation of thermal extension of heat-exchange elements at fast heating and cooling down of heat exchange equipment;
- Only bundle of tubes and pressure –resistant round collectors are pressurized;
- Repairability of heat exchangers is provided due to sectioning of heat-exchange surface;
- Universal size of heat exchange element provides even temperature and flow and, therefore, minimize stress inside tu-bular system.
Operation conditions are for the pressure max. 200 atm., temperature max. 600°С and cycle load. Working medium is any liquids or gases. The solution is based on new design of heat exchange surface made of small sized coils.
Types of heat-exchange elements
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