Spiral-plate heat exchanger with mixed runner

The invention discloses a spiral-plate heat exchanger with a mixed runner. The spiral-plate heat exchanger comprises a housing; a spiral body and a baffle plate are arranged in the housing; the baffleplate is positioned in the axial middle of the spiral body; the spiral body comprises a first spiral runner, a U-shaped clamping ring and a second spiral runner; the U-shaped clamping ring is weldedon the inner side of the first spiral runner; and the second spiral runner is detachably connected with the first spiral runner through the U-shaped clamping ring. Through the adoption of the technical scheme of the invention, dismounting for cleaning and maintaining is facilitated, a protection effect on a self structure can be exerted, the heat exchange efficiency is greatly improved, and the service life is prolonged. 本发明公开了混合流道螺旋板式换热器，包括壳体，其中，壳体的内部设置有螺旋体和隔板，隔板位于螺旋体轴向中部；螺旋体包括第一螺旋流道、U型卡接环和第二螺旋流道，第一螺旋流道的内侧焊接有U型卡接环，第二螺旋流道通过U型卡接环与第一螺旋流道可拆卸连接。通过本发明的技术方案，便于拆卸清洗和检修，对自身结构可以起到保护作用，大大提高了换热效率，增长了使用寿命。