公开(公告)号：US5771963A

公开(公告)日：1998-06-30

申请号：US746937

申请日：1996-11-18

申请人： Francisco Blangetti ,  Vaclav Svoboda ,  Harald Gerhard Fuchs

发明人： Francisco Blangetti ,  Vaclav Svoboda ,  Harald Gerhard Fuchs

IPC分类号： F28D7/08 ,  F28F9/00

CPC分类号： F28D7/08 ,  F28F9/00 ,  F28F9/26

摘要： A convective countercurrent heat exchanger comprises a nest of pipes (36) which is arranged in a cylindrical shell (35) and is equipped with ribbed pipes (37). The pipes through which a liquid flows are connected to a collector (33, 34). The shell is provided with a gas-inlet connection piece (31) and a gas-outlet connection piece (32). The nest of pipes (36), which is composed of a plurality of layered pipes, is mounted in a rectangular case (40). The pipes are provided in their straight parts (37) with welded-on ribs and are connected to one another by unribbed pipe bends (38). The pipe bends are accommodated in compartments (45) through which flow does not take place. The case (40) through which flow takes place opens on the outlet side (50) in a dome (51) which is delimited by the shell (35). The gas-outlet connection piece (32) is situated in the shell at that end of the annular chamber (44), enclosed by the shell and case, which is remote from the dome (51).

摘要翻译： 对流逆流热交换器包括布置在圆柱形壳体（35）中并具有肋状管道（37）的管子（36）。 液体流过的管道连接到集电器（33,34）。 壳体设置有气体入口连接件（31）和气体出口连接件（32）。 由多个分层管构成的管道（36）安装在矩形壳体（40）中。 这些管道设置在其直的部分（37）中，并具有焊接的肋条，并且通过未弯曲的管道弯曲部（38）彼此连接。 管弯头容纳在不发生流动的隔室（45）中。 通过其流动的壳体（40）在由壳体（35）限定的圆顶（51）的出口侧（50）处开口。 气体出口连接件（32）位于环形室（44）的端部处的壳体中，壳体和外壳围绕远离圆顶（51）的壳体。

公开(公告)号：US5992198A

公开(公告)日：1999-11-30

申请号：US206321

申请日：1998-12-07

申请人： Francisco Leonardo Blangetti ,  Harald Gerhard Fuchs

发明人： Francisco Leonardo Blangetti ,  Harald Gerhard Fuchs

IPC分类号： B21D19/08 ,  B21D19/12 ,  B21D39/06 ,  B21D39/08 ,  B21D39/20 ,  B21D41/02 ,  B21D26/02

CPC分类号： B21D39/203 ,  B21D39/06 ,  Y10T29/49364 ,  Y10T29/49373

摘要： In a hydraulic method, tubes (3) of an heat exchanger are rolled in in tube plates (1), and rounded tube inlet pieces are formed from the same tube (3) by means of the same device in the same work operation. For this purpose, the tubes (3) are inserted into the bores (2) of a tube plate (1) and cut off with an excess length. The tube (3) is widened by means of a widening machine over the entire depth of the bore (2), so that the tube (3) adheres to the inner wall of the bore (2). At the same time, the projecting tube end (10) is pressed on the mandrel (4) of the widening machine in the direction of the tube plate (1) by means of a further hydraulic shaping device (11) with a swept-back shape (12) until the tube end (10) achieves a trumpet shape. The advantage of the method resides in shortening the operating time with a device which executes both widening and formation of the tube inlet piece hydraulically. Given that the tube inlet piece is produced from the same tube (3), no seam is produced between the tube (3) and tube inlet piece, thus avoiding a site of faltering flow.

摘要翻译： 在液压方法中，热交换器的管（3）在管板（1）中滚动，并且在相同的工作操作中，通过相同的装置由相同的管（3）形成圆形管入口件。 为此，将管（3）插入管板（1）的孔（2）中并以多余的长度切断。 管（3）在孔（2）的整个深度上通过加宽机加宽，使得管（3）粘附到孔（2）的内壁。 同时，突出管端（10）通过另外的液压成形装置（11）沿着管板（1）的方向被挤压在加宽机的心轴（4）上，其具有扫掠 形状（12）直到管端（10）达到喇叭形状。 该方法的优点在于通过液压地执行管入口件的扩宽和形成的装置来缩短操作时间。 考虑到管入口件由相同的管（3）制成，在管（3）和管入口件之间不产生接缝，因此避免了流动的位置。