| 摘要 |
A heat exchanger assembly has two series of heat exchangers (1, 2) stacked in the vertical direction. The two series of heat exchangers have an insulating material (I) placed between them. A heat exchange assembly comprises at least one first and one second heat exchange body (5, 7), each being of the plate heat exchanger type, comprising metal plates of similar contour extending along a first dimension or length and a second dimension or width, spaced from and arranged in parallel rows to one another along a third dimension or thickness and a sealing means bounding flattened passages with the the plates, forming at least one passage of a first type and at least one passage of a second type. The sealing means allocates to each passage releasing one fluid inlet and one fluid outlet, one inlet (El) of the first body being connected to a first delivery line for a fluid to be cooled (D AIR MP) and one outlet (S1) of the first body being connected to a first collecting line for cooled fluid (C AIR MP), another inlet of the first body being connected to a first delivery line (DNR) for fluid to be heated and another outlet of the first body being connected to a first collecting line for heated fluid (CNR), one inlet of the second body being connected to a delivery line for fluid to be cooled (Dl AIR HP, D2 AIR HP) and one outlet of the second body being connected to a collecting line for cooled fluid (C1 AIR HP, C2 AIR HP), another inlet of the second body being connected to a delivery line for fluid to be heated (DNR') and another outlet of the second body being connected to a collecting line for heated fluid (CNR'). One side bounded by a width and a thickness of at least one first heat exchange body is located at least partially opposite a side bounded by a width and a thickness of at least one second heat exchange body, the two sides being separated by insulating material (I). An independent claim is indluced for an apparatus for the cryogenic separation of a gas mixture, comprising a stripping unit, a heat exchange assembly as above, and a system of columns, means for conveying the gas mixture to the stripping unit, means for conveying the stripped gas mixture to the assembly of heat exchangers to be cooled at least in one of the first and second heat exchanger bodies (5, 7) to at least one pressure, means for conveying at least some gas mixture cooled in at least one of the first and second heat exchanger bodies to the system of columns, and means (DNR, DNR') for conveying at least one product from the system of columns to each of the first and second series of heat exchanger bodies. |
