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Shell and tube heat exchanger with compound tube sheet

A heat exchanger, shell-and-tube technology, applied in the field of shell-and-tube heat exchangers, can solve problems such as operation stop

Pending Publication Date: 2021-03-23
CARRIER CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For continuous operation of such heat exchangers, the tubes may be replaced periodically, resulting in a cessation of operation

Method used

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  • Shell and tube heat exchanger with compound tube sheet
  • Shell and tube heat exchanger with compound tube sheet
  • Shell and tube heat exchanger with compound tube sheet

Examples

Experimental program
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Embodiment Construction

[0033] The detailed description of one or more embodiments of the disclosed apparatus and methods is presented herein by way of example and not limitation with reference to the accompanying drawings.

[0034] go to Figure 1-Figure 2 , shows a shell-and-tube heat exchanger assembly (assembly) 100 that includes a shell 101 (ie, a large vessel) and a plurality of aluminum tubes (aluminum tubes) 120 bundled within the shell 101 . The case 101 may have a plurality of ports (ports) 102 including a first port 102a and a second port 102b, which may be upstream ports and downstream ports, respectively. Within the present disclosure, the terms upstream and downstream are relative to the direction of flow of fluid within the aluminum tube 120 . The shell 101 may also have an exhaust port 102c to exhaust vapors formed within the shell 101 during the heat transfer cycle.

[0035] While embodiments without baffles 125 are within the scope of the present disclosure, there may be one or mo...

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PUM

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Abstract

Disclosed is a shell-and-tube heat exchanger assembly, having: a first tube sheet configured for being secured to a shell of the shell-and-tube heat exchanger assembly, the first tube sheet including:a first section and a second section; the second section configured to be secured to a first shell end of the shell; and the first section including a plurality of holes configured to support a respective plurality of aluminum tubes extending through the shell, wherein the first section is configured to limit a galvanic response of the plurality of aluminum tubes when exposed to a chiller water.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to U.S. Application No. 62 / 873,571, filed July 12, 2019, which is incorporated herein by reference in its entirety. technical field [0003] Exemplary embodiments relate to shell and tube heat exchangers, and more particularly to shell and tube heat exchangers having composite tube sheets. Background technique [0004] A shell and tube heat exchanger is a type of heat exchanger that includes a shell and a bundle of tubes inside the shell. When aluminum tubes are used in steel shells, these heat exchangers may experience wall thinning of the tubes beyond allowable limits due to fouling and corrosion. This is due to the high galvanic corrosion pairing between dissimilar metals. For continuous operation of such heat exchangers, the tubes may be replaced periodically, causing the operation to cease. Contents of the invention [0005] A shell-and-tube heat exchanger assembly is disclose...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D7/16F28F9/02F28F19/00F28F21/08F28F21/06
CPCF28D7/16F28F19/002F28F9/0273F28F21/084F28F21/06F28F9/0246F28F9/26F28F21/062F28F2275/06
Inventor L·F·阿维拉J·J·康韦顿T·H·锡涅尔B·D·维德托
Owner CARRIER CORP