公开(公告)号：US20230126017A1

公开(公告)日：2023-04-27

申请号：US17910624

申请日：2021-02-05

申请人： GEA TDS GmbH

发明人： Kevin Winking ,  Carsten Isferding ,  Wolfgang Jäckering ,  Ralf Speemann ,  Andreas Schmied ,  Ludger Tacke

IPC分类号： B23K9/028 ,  B23K9/00

摘要： Producing welded connections between inner tubes and tube support plates of a tube bundle for a product-to-product shell-and-tube heat exchanger by means of an auxiliary device is described. A production method includes pressing the end face of a tube support plate against the end face of the inner tubes in the direction of the inner tube longitudinal axes during welding operations with a first form fit, which is effective both radially and axially, immovably fixing the number of inner tubes corresponding to the tube layout pattern to each other by a second, detachable form fit of the auxiliary device, making a circumferential round weld orbitally, starting from the plate inner bore and the tube inner bore, in a single pass and continuously from radially inside to radially outside, and detaching and removing the auxiliary device from the welded tube bundle.

公开(公告)号：US20170268825A1

公开(公告)日：2017-09-21

申请号：US15505840

申请日：2015-08-13

申请人： GEA TDS GmbH

发明人： Brigitte Schlag ,  Uwe Schwenzow ,  Ulrich Rolle ,  Dietrich Zimmermann ,  Markus Grimm ,  Matthias Terlinde ,  Wolfgang Jäckering

IPC分类号： F28D7/06 ,  B23K20/12 ,  B23K20/02 ,  F28F9/26 ,  F28F13/08

CPC分类号： F28D7/06 ,  A23L3/22 ,  B23K20/023 ,  B23K20/129 ,  B23K2103/05 ,  F16L43/005 ,  F16L43/02 ,  F28D7/16 ,  F28F9/26 ,  F28F13/08 ,  F28F2275/06

摘要： A manifold with a circular cross-section having a deviation angle of 180 degrees for a tube bundle heat exchanger for large product pressures has a first and second flange on each inlet and outlet. The manifold has two manifold halves respectively made of a single piece, and each half comprises a joining point on an end facing away from a flange. The manifold halves are connected together on the associated joining point. Extension of the passage cross-section of each manifold half is formed by rotationally symmetrical through openings, from which at least one of the flanges and at least one of the joining points extends in the respective coaxial arrangement on rotational axes. First and second axes of through openings of the first manifold halves and third and fourth axes of through openings of the second manifold halves extend on a common plane representing a meridian plane for each flange.