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Plate exchanger for chemical reactors with automatically weldable collectors

A technology for chemical reactors and plate heat exchangers, applied in heat exchanger fixation, chemical instruments and methods, indirect heat exchangers, etc., can solve problems such as weakened plates, and achieve the effect of reducing the total volume and low cost

Active Publication Date: 2017-11-28
CASALE SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, large flow cross-sections may weaken the plate

Method used

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  • Plate exchanger for chemical reactors with automatically weldable collectors
  • Plate exchanger for chemical reactors with automatically weldable collectors
  • Plate exchanger for chemical reactors with automatically weldable collectors

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0043] figure 1 A schematic cross-section of a heat exchanger 100 for a chemical reactor is shown. The heat exchanger 100 is immersed in a catalytic bed 102 and comprises heat exchange plates 1 which, in the example, are arranged radially in direction r around a central axis. The heat exchanger has an annular structure.

[0044] figure 1 This refers to a radial flow reactor or an axial-radial reactor in which the catalytic bed and the heat exchanger are delimited by two cylindrical walls 103 and 104 . In an axial flow reactor, the outer wall is the vessel of the reactor, while the inner wall is the central tube which usually functions as a manhole.

[0045] figure 2 and image 3 A first embodiment of the invention is shown, in which the heat exchange plate 1 is substantially formed by a first wall 2 and a second wall 3; the second wall 3 is welded along the periphery and at corresponding "Point" 4 is welded to wall 2 at the separation point.

[0046] Walls 2, 3 are for...

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PUM

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Abstract

Plate heat exchanger for internals of isothermal chemical reactors, said plate heat exchanger comprising a plurality of heat exchange plates (1) having an essentially rectangular shape, wherein each plate comprises two walls (2, 3) which are joined together along their perimeter, and wherein each plate comprises a respective first collector for feeding a heat exchange medium to the plate and a respective second collector for receiving said medium form the plate, said first collector and second collector being fixed to opposite sides of said plate, and at least one (10, 30) of said first collector and second collector comprises edge surfaces which are planar and parallel to respective planar end portions (12, 13) of said plate, to provide plane and parallel surfaces for automated welding.

Description

technical field [0001] The present invention relates to heat exchangers for use in the interior of chemical reactors. In more detail, the invention relates to the realization of a plate heat exchange element for said exchanger. Background technique [0002] Chemical reactors containing heat exchangers immersed in catalytic beds are known. The heat exchanger allows control of the temperature of the catalytic bed and of the gas flow of reagents and product through the bed to maintain the temperature within a predetermined range. Therefore, such reactors are also called isothermal reactors. Isothermal chemical reactors are used, for example, in the synthesis of methanol and in the synthesis of ammonia. [0003] In particular, isothermal reactors are known in which the heat exchanger comprises a heat exchange element formed by a plate through which a cooling or heating medium passes from the inside. The plates can be parallel to each other or, more often, they are arranged r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D9/00F28F9/02F28F9/18B01J8/02
CPCB01J8/0285F28D9/0006F28D9/0062F28D9/0068F28F9/026F28F9/18B01J2208/0015F28F2275/06F28F2240/00B01J8/0214B01J8/0257F28D9/0018Y02P20/52F28F9/04F28F3/044
Inventor 恩里科·里奇
Owner CASALE SA