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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

Active Publication Date: 2009-12-23
AIRSYS REFRIGERATION ENG TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to meet the heat transfer requirements, the existing technology simply increases the length of the copper tube, which results in an increase in manufacturing costs, a decrease in corporate profits, and a decline in corporate competitiveness; at the same time, resources are wasted

Method used

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  • Spiral module type assembled casing heat exchanger
  • Spiral module type assembled casing heat exchanger
  • Spiral module type assembled casing heat exchanger

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Figure 5 It is a schematic diagram of the cross-sectional structure of the combined casing heat exchanger in Embodiment 1 of the present invention. As shown in the figure, the casing heat exchanger includes two spiral modules 2, and two casing pipes 3 are arranged in the spiral modules 2 respectively. Firstly, two casing pipes 3 are intertwined with each other over the full length, and then put into the spiral module 2 , and the two spiral modules 2 formed in this way are intertwined with each other over the entire length, and put into the heat exchanger tube bundle 1 .

Embodiment 2

[0025] Figure 6 It is a schematic diagram of the cross-sectional structure of the combined casing heat exchanger in Example 2 of the present invention. As shown in the figure, the casing heat exchanger includes two spiral modules 2, and two casing pipes 3 are arranged in the spiral modules 2 respectively. First, the two sleeves 3 are intertwined with each other over the full length, and then put into the spiral module 2, the two spiral modules 2 formed in this way are intertwined with the two sleeves 3 over the entire length, and put into the heat exchanger tube bundle within 1.

Embodiment 3

[0027] Figure 7 It is a schematic diagram of the cross-sectional structure of the combined casing heat exchanger in Embodiment 3 of the present invention. As shown in the figure, the casing heat exchanger includes three spiral modules 2, and three casing pipes 3 are arranged in the spiral modules 2 respectively. Firstly, the three casing pipes 3 are intertwined with each other over the full length, and then put into the spiral module 2 , and the three helical modules 2 formed in this way are intertwined with each other over the entire length, and put into the heat exchanger tube bundle 1 .

[0028] The helical direction of the helical module 2 of the present invention is opposite to the helical direction of the casing 3 .

[0029] To achieve turbulent flow, it is necessary to achieve the proper Reynolds number, high-speed flow, increased resistance, and increased power consumption. The present invention can achieve a lower flow rate and rely on the internal structure to prom...

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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.

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28D7/10F28D7/02
Inventor 朱建发
Owner AIRSYS REFRIGERATION ENG TECH BEIJING
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