Plate type heat exchanger for gas-gas heat exchange

气气换热用板式换热器

  • Inventors: CHEN XIANGMING
  • Assignees: 陈祥明
  • Publication Date: March 03, 2010
  • Publication Number: CN-201417103-Y

Abstract

The utility model discloses a plate type heat exchanger for gas-gas heat exchange, comprising a shell, a plurality of single tubes, a heat gas inlet, a heat gas outlet, a cold gas inlet and a cold gasoutlet, and a plurality of the single tubes are arranged in the shell; the plate type heat exchanger is characterized in that: the single tubes are welded into a plate type tubular structure by two steel plates with symmetrical structures, vertical grooves are distributed on the steel plate at interval, and the side all of the single tube is designed into transverse corrugated rib structure fromtop to bottom, whirling pipes are arranged among the tubes, and the steel plate adopts 1-1.5mm of stainless steel plate. Compared with the traditional heat exchanger, the heat transfer coefficient isimproved by 30-40 percent and can reach 30-35w/Km<2>; under the same condition, the resistance can be reduced by about 20 percent compared with the resistance of the whirling sheet screen sharp-expansion accelerated flow hollow circular-tube shell type heat exchanger; the heat exchanger can change heat for gas with no more than 800 DEG C and can exchange heat to acid fog gas containing concentrated sulfuric acid and phosphoric acid; the heat exchanger has the characteristics of low manufacturing cost and long service life.
本实用新型公开了一种气气换热用板式换热器,它包括有外壳、多个单管、热气体入口、热气体出口、冷气体入口、冷气体出口,多个单管设在外壳内,其特征在于:所述单管是由两个结构对称的钢板焊接而成一个板式的管状结构,钢板上设有间隔分布的竖向凹槽;单管的侧壁至上而下设计成横向的波纹状凸筋结构;管间设有旋流管;钢板采用1~1.5mm的不锈钢板。该板式换热器与传统的换热器相比,传热系数提高了30~40%即达到30~35W/Km<sup>2</sup>;在相同条件下,其阻力比旋流片网板急扩加速流空心环管壳式换热器阻力可降低20%左右;可对不大于800℃的气体换热,也可对含有浓硫酸和磷酸酸雾气体的换热;该换热器还具有制造成本低,使用寿命长的特点。

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Cited By (2)

    Publication numberPublication dateAssigneeTitle
    CN-102519279-AJune 27, 2012申屠华德, 陈祥明波纹管板式换热器
    CN-105222624-AJanuary 06, 2016洛阳瑞昌石油化工设备有限公司Plate type heat exchanger with gas phase and liquid phase heat exchange and resistance to high pressure