Spiral module type assembled casing heat exchanger

A combined casing and heat exchanger technology, applied in the direction of heat exchanger types, indirect heat exchangers, fixed tubular conduit components, etc., can solve the problems of declining competitiveness of enterprises, rising manufacturing costs, and declining profits of enterprises. Improve heat transfer effect, increase flow rate, reduce friction effect
CN100573018CActive Publication Date: 2009-12-23AIRSYS REFRIGERATION ENG TECH BEIJING
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
AIRSYS REFRIGERATION ENG TECH BEIJING
Publication Date
2009-12-23

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Abstract

The invention discloses a helical module combined casing heat exchanger, which comprises: a heat exchanger tube bundle; a helical module arranged in the heat exchanger tube bundle and spirally wound with each other; a casing arranged in the helical module , intertwined spirally. The invention has the advantages of greatly reducing the contact line on the entire length of the casing, having more single-point contacts, increasing the heat transfer area, reducing the stagnation area and welt phenomenon, and reducing the medium fluid between the cracks and the casing. The friction generated on the surface increases the flow rate and enhances the heat transfer.
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Description

technical field

[0001] The invention relates to the structural composition of a casing heat exchanger, in particular to a spiral modular combined casing heat exchanger. Background technique

[0002] figure 1 It is a cross-sectional structural schematic diagram of a single-row heat exchange tube casing heat exchanger in the prior art. As shown in the figure, two places on the circumference of each heat exchange tube 1 are in contact with the entire length of adjacent heat exchange tubes 1 , and the outer part of the tube bundle is in contact with the entire length of the casing 2 . figure 2 It is a cross-sectional structural schematic diagram of a casing heat exchanger with double rows of heat exchange tubes in the prior art. As shown in the figure, there are 3 or 5 places on the circumference of each heat exchange tube 1 in contact with the entire length of the adjacent heat exchange tube 1 , and an average of 3.857 places in each tube are in contact with the entire lengt...

Claims

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