| 摘要 |
<p>The device comprises a segment ring (6) effective to be inserted into a circumferential groove (5) formed in the exchanger header chamber portion (1) and having, in the radial direction, such dimension as to include, within the annular portion projecting from the header chamber portion groove (5), small cylinders (7) pressing against the peripheral area of the tube plate (2), a circumferential lug (2a) being further provided on the tube plate effective to be associated to the inside surface of the segment ring (6).</p> |
