Plate heat exchanger
AssigneeBarriquand Societe Anonyme
InventorsAndre Peze, Henry Fechner
Life of this patent
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Abstract
Plate exchanger of the type comprising a plurality of juxtaposed metallic plates defining spaces between them, every other of which spaces receives a flow of a first fluid whereas the other spaces receive a flow of a second fluid, substantially parallel to the first, each plate being joined in tight manner, by its periphery to the two adjacent plates, while inlet or outlet orifices are provided for the fluids, the plates being paired up by straight seam welding in two opposite end parts of the plates of each pair of plates, characterized in that one plate at least from each pair comprises a flange, at least in one of the end parts and close to said welding, which flange is bent substantially at right angle and joined by straight welding of its free bordering part to a plate facing the next pair.
Claims17
Plate exchanger of the type comprising a plurality of juxtaposed metallic plates defining spaces between them, every other of which spaces receives a flow of a first fluid whereas the other spaces receive a flow of a second fluid, substantially parallel to the first, each plate being joined in tight manner, by its periphery to the two adjacent plates, while inlet or outlet orifices are provided for said fluids, said plates being paired up by straight seam welding in two opposite bordering parts of the plates of each pair of plates, characterized in that one plate at least from each pair comprises a flange, at least in one of said bordering parts and close to said welding, which flange is bent substantially at right angle and joined by straight welding of its free edge to a plate facing the next pair.
A plate heat exchanger of the type for exchanging heat between a first and second fluid, the heat exchanger comprising:
- a plurality of pairs of metallic plates, the plates of each pair joined together to define a plurality of sealed first spaces with first fluid inlet and outlet openings, at least one plate of each pair comprising a flange located on an end with at least one of (1) the inlet opening and (2) the outlet opening, the flange extending substantially at 90.degree. with respect to the plane of the pair of plates and joined to one of the adjacent pair of plates to create a plurality of sealed second spaces with second fluid inlet and outlet openings between the pairs of plates such that fluid flowing in the second spaces will flow substantially parallel to fluid flowing in the first spaces.
A plate heat exchanger for exchanging heat between a first and second fluid, the heat exchanger comprising:
- a plurality of juxtaposed pairs of metallic rectangular plates, each plate comprising a plurality of surface formations operative to engage at least one adjacent plate, the plates of each pair joined together at least one of the surface formations and along a first end and along a second end opposite the first end to define a plurality of sealed first spaces with inlet openings located on the first end and outlet openings located on the second end, the first space receiving flow of a first fluid substantially in a first direction, each plate comprising a flange along the edges of the respective end containing the inlet and outlet openings, the flanges of each plate bent at substantially right angles to join the flanges of the adjacent plates and form a plurality of sealed second spaces between the pairs of plates with inlet and outlet openings, the second spaces receiving flow of a second fluid in a direction substantially parallel to the first direction.
Dependencies are inferred from the claim text.