JPS62172959U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a plan view of an embodiment of the present invention with the lid removed, FIG. 2 is a cross-sectional view taken along the line 1 in FIG. 1, and FIG. 3 is a schematic diagram of a conventional example. 21... Box body, 22... Lid, 23... First partition plate, 24... Second partition plate, 26... Meandering passage, 29,
30... Box connection tube, 31... First inflow pipe, 32...
First outflow pipe, 36...Meandering pipe, 37, 38...Joining pipe, 41...Second inflow pipe (outlet pipe), 43...Second
outflow pipe (draw-out pipe).

Claims (1)

[Claims for Utility Model Registration] (1) A first partition plate that extends from one end to the vicinity of the other end inside the box body that is open on one side, and a second partition plate that extends from the other end to the vicinity of the one end. A meandering passage is formed inside the box body by providing a serpentine passage, a box connecting tube is connected to each end of the meandering passage, and a plurality of serpentine pipes meandering along the meandering passage are provided inside the box body. a joint pipe is commonly connected to one end and the other end of each of the plurality of meandering pipes, a lead-out pipe communicating with the box body connecting tube is respectively connected to the joint pipe, and an open surface of the box body is connected to the joint pipe. A double heat exchanger characterized by having a lid attached to the top. (2) The dual heat exchanger according to claim 1, wherein the plurality of meandering pipes are arranged in a direction perpendicular to the open surface of the box body.