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A plate heat exchanger

A technology of plate heat exchangers and heat exchangers, applied in heat exchange equipment, heat exchanger shells, indirect heat exchangers, etc.

Inactive Publication Date: 2006-11-22
ALFA LAVAL CORP AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, chromium dioxide is difficult to reduce by using common fluxes with low toxicity or corrosion, and what is required is the use of more toxic or corrosive fluxes, such as fluxes containing fluorine

Method used

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  • A plate heat exchanger
  • A plate heat exchanger
  • A plate heat exchanger

Examples

Experimental program
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Embodiment Construction

[0024] Figure 1-6 Different embodiments of plate heat exchangers are shown. In all embodiments the plate heat exchanger comprises a plurality of heat exchanger plates 1 which are arranged next to each other so as to form a plate pack 2 . Each heat exchanger plate 1 comprises, in a manner known in the art, corrugations 3 for enhancing heat transfer, and four port holes for forming a corresponding number of port channels 4 extending through the plate pack 2 . It should be noted that the board assembly 2 may comprise different Figure 1-6 Other numbers of port channels than the four port channels disclosed in the illustrated embodiment.

[0025] The plate pack 2 comprises a first outer heat exchanger plate 1' and a second outer heat exchanger plate 1". Between these two heat exchanger plates the remaining heat exchanger plates 1 are arranged. In the shown embodiment In the example, the first outer heat exchanger plate 1' is also provided with port holes aligned with the port ...

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Abstract

The invention relates to a plate heat exchanger and a method of manufacturing a plate heat exchanger. The plate heat exchanger includes a number of heat exchanger plates (1, 1', 1'') which are provided beside each other and connected to each other by means of a braze connection. The heat exchanger plates are substantially manufactured in stainless steel containing chromium. The plate heat exchanger includes a number of port channels extending through at least some of the heat exchanger plates. Each port channel is surrounding by a connection surface (5) for connection of the port channel to a pipe member (6). The connection surface includes a material permitting brazing of the pipe member to the connection surface in a more easy manner than stainless steel.

Description

technical field [0001] The invention relates to a plate heat exchanger comprising a plurality of heat exchanger plates arranged close to each other and connected to each other by means of a brazed connection, wherein the heat exchanger plates are substantially made of stainless steel containing chromium wherein the plate heat exchanger comprises a plurality of port channels extending through at least some of the heat exchanger plates, and the one or more port channels are surrounded by connecting surfaces for connecting the port channels to tubes. [0002] The invention also relates to a method of manufacturing a plate heat exchanger comprising a plurality of heat exchanger plates generally made of stainless steel containing chromium and comprising a plurality of heat exchanger plates extending through at least some of the heat exchanger plates The port channel of the adapter plate, and one or more port channels are surrounded by a connection surface for connecting the port ch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28F9/16B21D53/04B23K1/00F28D9/00F28F9/04F28F21/08
CPCB23K1/0012F28D9/005F28F9/0246F28F21/082Y10T29/4938Y10T29/49373F28F9/16F28F3/00F28F21/00
Inventor P·肖丁P·-O·达尔伯格
Owner ALFA LAVAL CORP AB
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