Heat exchange tube bundle positioning net for flue gas heat exchanger with fluorine plastic heat exchange tubes

Abstract

A heat exchange tube bundle positioning net for a flue gas heat exchanger with fluorine plastic heat exchange tubes is formed by interweaving parallelly distributed positioning net weft and parallelly distributed positioning net warp. The positioning net is made of a rigid high-temperature-resistant corrosion-resistant material, the net surface of the positioning net is perpendicular to the axis of the heat exchange tube bundle, the size of each mesh of the positioning net is adapted to the diameter of each fluorine plastic heat exchange tube, and the periphery of the positioning net extends to an inner wall of a flue gas heat exchanger casing. The heat exchange tube bundle positioning net is applied to the flue gas heat exchanger with the fluorine plastic heat exchange tubes, is used for positioning a fluorine plastic heat exchange tube bundle, can avoid shaking deformation of the fluorine plastic heat exchange tube bundle caused by flowing impact of flue gas, enables the fluorine plastic heat exchange tubes in the flue gas heat exchanger with the fluorine plastic heat exchange tubes to maintain intervals, enables the flue gas to circulate smoothly and guarantees full contact and heat exchange between the flue gas and the fluorine plastic heat exchange tubes.

Description

technical field [0001] The invention relates to a heat exchange tube bundle positioning device applied to a flue gas heat exchanger in a flue gas waste heat recovery system. Background technique [0002] The flue gas waste heat recovery system refers to setting a flue gas heat exchanger in the flue gas flow channel at the tail of the boiler, using a cold medium to exchange heat with the flue gas, and recovering the waste heat in the flue gas discharged from the boiler. During the flue gas waste heat recovery process, as the temperature of the flue gas decreases, the acidic components in the flue gas may condense and condense, which is highly corrosive, and the soot in the flue gas will also exchange heat in the flue gas The accumulation and settlement in the heat exchange tube bundle of the flue gas heat exchanger is very bad. The flue gas heat exchanger in the traditional flue gas waste heat recovery system generally adopts metal heat exchanger tube bundles. The positionin...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a heat exchange tube bundle positioning net for the fluoroplastic heat exchange tube flue gas heat exchanger, to solve the problem that the fluoroplastic heat exchange tubes in the fluoroplastic heat exchange tube flue gas heat exchanger are prone to shake and Deformed technical issues

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