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Plate heat exchanger and support arrangement for plate heat exchanger

A technology of plate heat exchangers and support devices, applied in heat exchange equipment, heat exchanger types, heat exchanger shells, etc., can solve the problem of no reliable support surface for the outer heat transfer plate, and achieve high fluid pressure Effect

Inactive Publication Date: 2003-07-02
ALFA LAVAL CORP AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The consequence of this gap is that the outer heat transfer plate has no support surface to rest against in the area around the hole

Method used

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  • Plate heat exchanger and support arrangement for plate heat exchanger
  • Plate heat exchanger and support arrangement for plate heat exchanger
  • Plate heat exchanger and support arrangement for plate heat exchanger

Examples

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Embodiment Construction

[0024] Figure 1 shows a plate heat exchanger 1 with heat transfer plates 3 permanently connected to a plate pack 2, wherein the heat transfer plates are used for heat exchange between two heat exchange fluids. Each heat transfer plate 3 has four holes forming two inlet and two outlet channels through the plate pack 2 . The plate assembly 2 is installed between two frame plates 4 , 5 , and the frame plates 4 and 5 are fixed together by screws 6 . The frame plate 4 has four connecting pipes 7 , the interior of which connects with the respective inlet and outlet passages in the plate assembly 2 respectively. (Only two connecting pipes 7 are shown.)

[0025] Each of the two heat exchange fluids flows into the plate heat exchanger 1 through a connecting pipe 7 communicating with an inlet channel, then flows to the outlet channel through the plate gap between the heat transfer plates 3, and flows out of the plate heat exchanger through a connecting pipe 7 therefrom. Plate heat exc...

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PUM

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Abstract

PCT No. PCT / SE97 / 01899 Sec. 371 Date Jun. 22, 1999 Sec. 102(e) Date Jun. 22, 1999 PCT Filed Nov. 12, 1997 PCT Pub. No. WO98 / 21539 PCT Pub. Date May 22, 1998A plate heat exchanger comprises a plate package (2) of heat transfer plates (3) provided with ports (12), which is arranged between two frame plates (4, 5), at least one (4) of the frame plates being provided with connection pipes (7). The invention concerns a support arrangement to avoid bending of a portion that surrounds each of the ports (12) of an outer heat transfer plate (10) in the plate package (2). Each connection pipe (7) on its inside is provided with a lining (9), which is radially movable in the connection pipe (7) and permanently connected with the outer heat transfer plate (10) around its relevant port (12). The support arrangement is constituted by a ring (14) arranged around the lining (9). The ring (14) supports the outer heat transfer plate (10) and abuts against a support surface, which is fixed in relation to the frame plate (4).

Description

technical field [0001] The invention relates to a plate heat exchanger. The invention also relates to a support device for a plate heat exchanger as described above. Background technique [0002] In the above type of plate heat exchanger, the heat transfer plates and liners are thinner and in direct contact with the heat exchange fluid, as a result these parts of the plate heat exchanger will quickly reach the temperature of the heat exchange fluid, therefore, Will tolerate rapid changes in length. In addition, the frame plate is relatively thicker than the heat transfer plates and liners, and the frame plate is not in direct contact with the heat exchange fluid. In this way, one side of these frame plates, ie their inner side, is in contact with the outer heat transfer plates of the plate pack, respectively, while the other side, ie their outer side, is in contact with the surrounding air. The frame plate therefore undergoes a smaller, in particular slower, change in len...

Claims

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Application Information

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IPC IPC(8): F28D9/00F28F3/08F28F9/04F28F9/10
CPCF28F3/083F28F9/0246Y10S165/364
Inventor E·韦恩曼R·约恩松B·尼尔松G·安德松
Owner ALFA LAVAL CORP AB