一种3，3-二甲基丁醛生产用列管式换热器

一种3，3-二甲基丁醛生产用列管式换热器，本发明属于蒸馏领域，包括罐体、管板、换热管、第一进口、第二进口、第一出口、第二出口和隔板，换热管的外周转动安装螺旋叶片，螺旋叶片与对应的换热管同轴，螺旋叶片的内周与换热管的外周滑动接触配合，换热管由内向外分为数层，每层的换热管均匀圆周分布，每层相邻的螺旋叶片旋向相反，管板上设有能够驱动螺旋叶片同向转动的驱动装置。本发明结构简单，构思巧妙，通过转动的螺旋叶片能够对换热管的外壁不断进行刮除清理，避免换热管的外壁结垢，同时通过转动的螺旋叶片能够增加换热管外周液体的流动性，从而能够增加换热管内外两侧液体的热交换效率。 The invention discloses a tubular heat exchanger for production of 3, 3-dimethyl butyraldehyde, and belongs to the field of distillation. The heat exchanger comprises a tank body, a tube plate, heat exchange tubes, a first inlet, a second inlet, a first outlet, a second outlet and a partition plate, spiral blades are rotatably mounted on the peripheries of the heat exchange tubes and are coaxial with the corresponding heat exchange tubes, the inner peripheries of the spiral blades are matched with the outer peripheries of the heat exchange tubes in a sliding contact mode, the heat exchange tubes are divided into a plurality of layers from inside to outside, the heat exchange tubes on each layer are evenly and circumferentially distribu