Blocks that form composite heat exchanger modules that can be integrated into heat exchangers
A technology of heat exchangers and composite materials, applied in heat exchange equipment, heat exchanger shells, lighting and heating equipment, etc., can solve problems such as uneven mechanical and thermal characteristics, reduce the mechanical strength of equipment, and limit the use of corrosive fluids , to achieve the effect of optimizing the mechanical connection
Active Publication Date: 2020-01-17
GRAPHITE TECH ASIA LTD
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Problems solved by technology
Moreover, since the penetration of resin into graphite is achieved at variable rates, the same impregnated graphite element can have, for example, non-uniform mechanical and thermal properties over its length
This leads to a major disadvantage of components made of impregnated graphite: their high degree of fragility, especially under vibration stress, shocks and high temperature differences
These bonded areas often constitute weak points that limit the use of corrosive fluids and reduce the overall mechanical strength of the equipment
Method used
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no. 1 example
[0070] In order to form an easy-to-use block 10, there are several possibilities. According to a first embodiment, the tube 12 is inserted between two maintenance plates 20 each comprising:
[0071] - the axial outer surface 22,
[0072] - the axial inner surface 24,
[0073] - Openings 26 each through which a tube 12 passes.
[0074] These plates 20 are made, for example, of carbon steel or stainless steel.
[0075] The tube 12 and the two maintaining plates 20 are arranged such that the end of each tube 12 is flush with the axially outer surface 22 of each maintaining plate 20 .
[0076] In order to ensure the joint between the retaining plates 20 and the tube 12 , each retaining plate 20 comprises a layer 28 of metal mesh covering its axially outer surface 22 to constitute an end piece 29 .
[0077] The metal mesh layer 28 of the end piece 29 itself is also provided with openings that coincide with the openings 26 of the retaining plate 20 .
[0078] In the example sho...
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Abstract
The invention relates to a block member 10 of a composite material heating exchange module capable of being integrated with a heat exchanger. The block member 10 comprises at least one tube 12 and one plate 20. The tube is provided with a metal mesh sleeve 16 and an inner coating layer 18 formed by resin. The plate comprises at least one opening 26, and the tube 12 penetrates the opening 26. The plate 20 comprises a metal mesh layer 28, which is at least partially disposed on the axial outer surface 22 in a covered manner. The tube sleeve 16 of every tube 12 and the metal mesh layer 28 of the plate 20 are connected together in a welded manner. The coating layer 32 formed by the resin is disposed on the welding parts 30 between the metal mesh layer 28, the tube sleeve 16 of the tube 12, and the metal mesh layer 28 of the plate 20, and is used to form a continuous coating body together with the inner coating layer 18 of the tube 12.
Description
technical field [0001] The invention relates to the field of heat exchangers, more particularly heat exchangers consisting of elements impregnated with resin. Background technique [0002] Traditionally, these elements are made of impregnated graphite. Impregnated graphite, which includes carbon and carbon-graphite mixtures, is actually relatively resistant to high temperatures and corrosive substances. Impregnated graphite also has good thermal conductivity (25 to 50 W / mK in the direction of radial propagation). [0003] Components made of impregnated graphite are thus traditionally used in the manufacture of chemical devices, such as heat exchangers, columns, vessels or reactors. [0004] In particular, all heat exchangers manufactured on the basis of elements made of impregnated graphite can be generally divided into two categories: [0005] Tube heat exchanger; [0006] (cylindrical or cubic) block heat exchanger. [0007] A heat exchanger is a device that allows th...
Claims
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IPC IPC(8): F28F19/04F28F21/08
CPCF28F19/04F28F21/08F28F2225/04F28F2255/06F28F9/04F28F9/16F28F21/062
Inventor 柯瑞思·于戈
Owner GRAPHITE TECH ASIA LTD