一、用途 板式换热器是由传热板片、密封胶垫、框架和夹紧螺栓等主要零部件组成。传热板片四个角形有角孔，镶贴有密封胶垫的传热板片安装在固定夹紧板和活动夹紧板之间的柜架上，用夹紧螺栓夹紧，密封胶垫按着人为设计的流程形式将各传热板片密封联结，形成迷宫式的介质流道，两种换热介质在相邻的流道内互相逆流，进行充分的热交换。传热板片波纹为人字形相邻板片具有反方向的人字形沟槽，沟槽的交叉点相互支撑形式接触点，介质流动时形成湍流，获得到很高的传热效率。 三、技术规格 型号 2LQFW、2LQFL、 2LQF6W 2LQF1W、 2LQF1L 2LQGW 2LQF4W 4LQF3W 2LQG2W 换热面积/m2 0.5～16 19～290 0.22～11.45 0.5～14 1.3～5.3 0.2～4.25 传热系数/（W/(m2·K)) 348～407 348～407 348～407 290～638 523～580 348～407 设计温度/℃ 100 120 120 100 80 100 工作介质压力/MPa 1.6 1.0 1.6 1.6 1.6 1.0 冷却介质压力/MPa 0.8 0.5 1.0 0.8 0.4 0.5 油侧压力降/MPa ＜0.1 ＜0.1 ＜0.1 ＜0.1 - ＜0.1 介质粘度/(mm2/s) 10～326 10～326 10～326 10～325 10～50 10～325 生产厂 四平市兴中液压件厂 型号 特 点 及 用 途 2LQFW   浮头式结构，卧式安装，管束可在壳体内自由伸缩、并可抽出，*适用于介质温度较高或温差较大场合，清洗、维修方便 2LQFL   浮头式结构，立式安装，管束可在壳体内自由伸缩、并可抽出，便于维修保养，适用于介质温度较高或温差较大的场合 2LQF6W   浮头式结构，卧式安装，管束可在壳体内自由伸缩、并可抽出，*适用于介质温度较高或温差较大场合，清洗、维修方便 2LQF1W   浮头卧式结构，管束伸缩不受壳体约束，清洗方便，适应性强，适用于介质温度较高或温差较大的场合 2LQF1L   浮头结构，立式安装，管束可推出，便于清洗、适应性强，适用于介质温度较高或温差较大的场合 2LQGW   固定管板式结构，换热管为黄铜，膨胀系数相同。用于介质温度较高或温差较大及需耐腐蚀的场合 2LQG2W   



固定管板式结构，换热管为黄铜，其余均为钢结构，热效率高，适用于换热面积较小的场合 4LQF3W   双重管间翅片式结构，结构紧凑先进，冷却效能高、体积小、重量轻、水阻小，为高效能冷却器。适用于系统布置要求紧凑的场合（德国引进产品） 4LQF4W   螺纹管冷却器、浮头式、热膨胀管束在壳体内可自由伸缩，传热系数高、体积小、重量轻，维修方便
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