L-shaped shell and tube heat exchanger
A tube-and-tube heat exchanger, L-shaped technology, applied in the field of L-shaped tube and tube heat exchangers, can solve problems such as unsatisfactory, ineffective, powerless, etc., and achieve the effects of simple structure, reduced operating costs, and convenient processing and production
Active Publication Date: 2011-05-25
WENAN COUNTY TIANHUA DENSITY BOARD
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Problems solved by technology
In order to solve the above technical problems, people have considered many solutions, some of which add expansion joints to the shell of the heat exchange chamber to make the deformation bear on the shell of the heat exchange chamber; some use flexible tube sheets; others use wave joints However, because the chemical reaction or combustion reaction is sometimes an uneven local reaction, the above-mentioned methods are somewhat powerless to solve, with little effect, are not ideal, and cannot fundamentally solve the problem
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[0017] The present invention will be further described through the embodiments below in conjunction with the accompanying drawings.
[0018] Refer to attached figure 1 , an L-shaped tube heat exchanger, comprising an upper tube plate 2, a heat exchange chamber shell 3, a heat exchange element 4, and a lower tube plate 5, the upper tube plate is arranged on the top of the heat exchange chamber, and the outer part of the upper tube plate In contact with the heat source, directly used as the inlet of the high-temperature medium, one end of the heat exchange element set in the shell of the heat exchange chamber is fixed on the upper tube plate, and the other end is fixed on the lower tube plate. The space is connected, and its special feature is that several heat exchange parts are bent and arranged in the shell of the heat exchange chamber, and they are bent in the same direction together, and are arranged in the shell of the heat exchange chamber in an L-shaped or similar L-shap...
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The invention relates to an L-shaped shell and tube heat exchanger, and belongs to the technical field of industrial heat exchangers. According to the technical scheme, the heat exchanger comprises an upper tube plate (2), a heat exchange chamber shell (3), a heat exchange piece (4) and a lower tube plate (8), wherein the upper tube plate is used as an inlet of a high-temperature medium; one end of the heat exchange piece arranged in the heat exchange chamber shell is fixed on the upper tube plate, and the other end of the heat exchange piece is fixed on the lower tube plate; and the heat exchange piece is communicated with the space outside the upper tube plate and the lower tube plate. The heat exchanger is characterized in that: the heat exchange piece is bent in the heat exchange chamber shell and arranged in the heat exchange chamber shell in an L-shaped or similar L-shaped structure. By adopting the structure that the heat exchange piece is bent in a heat exchange body, the heatexchange has simple structure, is convenient to process and manufacture and thorough to clear temperature difference stress, can bear expansion deformation of the heat exchange piece for a long term,runs stably for a long term, prolongs the service life, reduces the running cost, and is particularly suitable for heat reclamation of the high-temperature medium or quick cooling of the high-temperature medium after chemical reaction.
Description
technical field [0001] The invention relates to an L-shaped tube heat exchanger, which belongs to the technical field of industrial heat exchangers. Background technique [0002] At present, the tube and tube heat exchangers used in industry generally have the following two structures; the first is that the heat exchange tubes between the upper tube sheet and the lower tube sheet are straight structures; the second is to use a tube sheet , The heat exchange tube is a U-shaped structure. The first type of tube-and-tube heat exchanger with upper and lower tube-sheet structures, the upper part of the upper tube-sheet can be used as a reaction chamber or a combustion chamber. Cracks often appear in the welds between heat exchange tubes, causing equipment damage, affecting service life and normal production; the upper part of the tube plate of the second type of single tube plate U-tube heat exchanger cannot be used as a reaction chamber or a combustion chamber. The invention i...
Claims
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IPC IPC(8): F28D7/08
Inventor 景玉国肖跃进贾志学丁朝辉崔海文
Owner WENAN COUNTY TIANHUA DENSITY BOARD