Plate-type heat exchanger
    2.
    发明授权

    公开(公告)号:US3568765A

    公开(公告)日:1971-03-09

    申请号:US3568765D

    申请日:1968-11-18

    Applicant: BASF AG

    Inventor: KONRAD OTTO

    CPC classification number: F28F3/083

    Abstract: A plate-type heat exchanger for fluids, comprising a deck of separate plates with sealing means between adjacent plates which is compressed by two end pieces, each of these end pieces having the form of a short cylindrical shell with a domed end and the compressive forces being applied to the deck of plates by means of an end plate arranged in one of the end pieces and hydraulically movable in the direction of the longitudinal axis of the deck of plates.

    Plate heat exchangers for use at high pressures

    公开(公告)号:GB1023081A

    公开(公告)日:1966-03-16

    申请号:GB4876562

    申请日:1962-12-28

    Applicant: BASF AG

    Inventor: KONRAD OTTO

    Abstract: 1,023,081. Plate heat exchangers. BADISCHE ANILIN- & SODA-FABRIK A.G. Dec. 28, 1962 [Dec. 30, 1961], No. 48765/62. Heading F4S. A stacked plate heat exchanger for use with high pressure heat exchange fluids is housed in a cylindrical pressure vessel. As shown, the pressure vessel comprises a cylindrical casing 1 closed by end plates 4, 5 held by threaded rings 17, 18 respectively and having 0-ring seals 19, 20. A piston 24 in the casing 1 has portions 24, 25 the diameters of which correspond to the bores 21 and 22 respectively of the casing, each portion having an 0-ring seal. A stack 7 of identical circular plates 6 is housed in the smaller bore 21 of the casing and is held between the piston 24 and the end plate 4, peripheral seals 14 being provided between the plates. Each seal 14 is combined with a rigid support member which carries the main compressive load applied to the stack, to prevent crushing of the seals. One heat exchange fluid enters the upper chamber through an inlet 8 and passes through a bore 30 in piston 24 into alternate spaces in the stack of plates, being finally discharged through an outlet 10. The annular space between the stack 7 and the casing 1 is pressurized by some of this fluid passing through a bore 36 in the piston 24. The second fluid, at a lower pressure than the first, enters the stack 7 through an inlet 11 and flows through the remaining spaces between the plates 6, leaving the stack through a pipe 33 fixed in a bore 31 in the piston and slidable in an outlet 9 in the end plate 5. The seals 14, of a plastics material, have to withstand only the pressure differential between the two fluids, and the stack 7 is compressed axially by a force equal to the pressure of the first fluid multiplied by the difference between the areas of the upper and lower bores 22, 21 of the casing. In a second embodiment, not shown, using metallic seals 14 when the temperatures or pressures are too high for plastics seals, the piston 24 is dispensed with and the casing has a single parallel bore housing the plate stack.

    4.
    发明专利
    未知

    公开(公告)号:DE1401657A1

    公开(公告)日:1968-10-24

    申请号:DEB0065381

    申请日:1961-12-30

    Applicant: BASF AG

    Inventor: KONRAD OTTO

    Seal assembly for plate heat exchangers

    公开(公告)号:GB940755A

    公开(公告)日:1963-10-30

    申请号:GB952862

    申请日:1962-03-13

    Applicant: BASF AG

    Inventor: KONRAD OTTO

    Abstract: 940,755. Joint-making; packing. BADISCHE ANILIN- & SODA-FABRIK A.G. March 13, 1962 [March 14, 1961], No. 9528/62. Heading F2B. [Also in Division F4] The peripheral sealing means between adjacent plates of a plate heat exchanger (see Division F4) comprises sealing elements of different hardness, wherein the harder elements limit the initial load on the soft elements when the plate assembly is secured together, the soft elements being movable or displaceable between the harder elements. As shown, the plates 1 are sealed by hard elements 5 and soft elements 3, the soft elements being thicker than the hard elements. In a modification, the hard sealing elements are of substantially H- shaped cross-section and the recesses formed by the flanges of the H-shape are wedge-shaped (Figs. 3 and 4, not shown), the soft elements being located in these recesses.

    Improvements relating to plastics packings

    公开(公告)号:GB940445A

    公开(公告)日:1963-10-30

    申请号:GB1488260

    申请日:1960-04-28

    Applicant: BASF AG

    Inventor: KONRAD OTTO

    Abstract: Corrosion protective coatings 19, 20, are provided on the wall-parts of a pressure vessel 1, 2 where they make contact with a plastics sealing packing 4 which is retained by flanged and flat rings 5, 6 in a groove 3 in the cover 2. The protective coatings are made of plastics such as polyvinyl chloride, polytetrafluoroethylene or polystyrene, or of lacquers e.g. oil containing alkyl varnishes, nitrocellulose lacquers &c. The protective coatings can be used with plastics packings used generally e.g. for seals on machines, fittings, and in pipes &c.

    8.
    发明专利
    未知

    公开(公告)号:FR1341449A

    公开(公告)日:1963-10-25

    申请号:FR920143

    申请日:1962-12-29

    Applicant: BASF AG

    Inventor: KONRAD OTTO

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