Construction principle of bellows heat exchanger

Date:2019-01-12

It is a new type of heat transfer and energy-saving high-efficiency heat exchange equipment. On the basis of the traditional tubular heat exchanger, the enhanced heat transfer technology is a major breakthrough for the traditional heat exchangers. Nominal diameter DN325~2000mm; nominal pressure P0.6~.4Mpa; heat exchange tube size Ф19, Ф25, Ф32, Ф42. wall thickness 0.5~1.0; working medium water-water, steam-water, oil-water, oil- A variety of heat exchange media such as oil. The total heat transfer coefficient water-water K=2000~3500w/m2; steam-water K=2500~4000w/m2; other media depend on the physical properties of the medium and working conditions. Excellent performance, high heat transfer efficiency, good anti-corrosion ability, no pollution, no blockage, no scaling, no maintenance, reliable sealing, stable operation, less land occupation and investment saving.

The circular block type graphite heat exchanger is assembled by a column-shaped impervious graphite heat exchange block, a graphite upper and lower cover, a fluoro-oxygen rubber (or flexible graphite) O-ring and a metal casing, a gland, and the like. It is a kind of graphite heat exchanger which is more advanced and superior in performance.

The cylindrical graphite heat exchange block has high strength and easy to solve the sealing problem; the fluorine rubber (or flexible graphite) O-ring sealing medium is used in the sealing, and the pressure spring is added as the automatic compensation for thermal expansion and contraction. In order to improve the turbulence degree, the short channel is used to improve the turbulence degree, so that the structure of the device is high, the temperature and pressure resistance are strong, the thermal shock resistance is good, the volume utilization rate is high, the heat transfer effect is good, and the assembly and disassembly are easy to repair. The longitudinal holes of the equipment go through corrosive media, and the transverse holes go non-corrosive media.

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