Involute tubular heat exchanger of cold trap machine

A heat exchanger comprises a cylinder body, a cavity is formed in the cylinder body, the cylinder body is provided with a cylinder body inlet and a cylinder body outlet, a plurality of winding branchpipes are contained in the cavity, each winding branch pipe is formed by winding pipes, a plurality of circles of annular structures are formed by winding the pipes on the same plane approximately, and the multiple winding branch pipes are arranged at preset intervals in the vertical direction. A first opening and a second opening are formed in the two ends of each winding branch pipe respectively, each first opening is communicated with the first main pipeline, and each second opening is communicated with the second main pipeline. And the multiple involute branch pipes are arranged in a stacked mode, the heat exchange area can be obviously increased, and the heat exchange efficiency is improved. 一种换热器，包括缸体，缸体内部形成有腔体，缸体具有缸体进口和缸体出口，腔体内部容纳有多个缠绕支管，每个缠绕支管均由管绕制形成，大致在同一平面上管绕制形成有多圈环形结构，多个缠绕支管在竖直方向上间隔预设距离设置；每个缠绕支管的两端分别形成第