Confinement group for a plate heat exchanger, a method of obtaining such an exchanger, and a method of absorbing stress in a confinement group for pack-type plate heat exchangers

摘要

The present disclosure relates to a confinement group for a pack-type plate heat exchanger including at least one pair of end heads (2) designed to be located one opposite to the other with respect to the plate pack and to be tightened against the plate pack by means of tightening means (5, 8), the confinement group including at least one end head (2) of the pair of heads (2), which comprises: a block (3) made of a first material resistant to compression stress and having an internal front portion (3a) designed to contact the plate pack, an external front portion (2a, 2b) on which the tightening means (5, 8) are designed to act, and at least one reinforcement element (4, 40) made of a second material resistant to traction stress and located at the external front portion (2a, 2b).

主权项

1. A confinement group for a pack-type plate heat exchanger including:
at least one pair of end heads located opposite each other with respect to the plate pack, and tightening means for tightening the end heads against the plate pack; at least one end head of said pair of heads comprises: a block of a first material resistant to compression stress, the block having: an internal front portion located and configured for contacting the plate pack; an external front portion on which the tightening means act; at least one reinforcement element of a second material resistant to traction stress and located at said external front portion, the reinforcement element comprises a shell element located at said external front portion; each head delimits seats for said tightening means; said shell element includes lateral portions and includes an intermediate portion connecting said lateral portions, thereby delimiting a receiving zone for said block; said reinforcement element has a pair of projections or ears at said lateral portions located and configured to act as abutment shoulders for a respective one of said tightening means; each said ear has a face or surface located and configured to be engaged by a respective one of said tightening means and each ear has an internal face or surface when the ear is in use; and said block extends to and engages the whole or part of said internal face or surface of said ears.