Variable-fin-spacing type plate-fin heat exchanger
A plate-fin heat exchanger and fin spacing technology, applied in indirect heat exchangers, heat exchanger types, heat exchange equipment, etc., can solve the uneven heat exchange of plate-fin heat exchangers and affect the Heat exchanger development and other issues, to achieve the effect of improving heat exchange effect, reducing flow resistance and improving economy
Inactive Publication Date: 2016-10-12
TIANJIN UNIV OF COMMERCE
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Problems solved by technology
However, the heat transfer inside the plate-fin heat exchanger is extremely uneven, which seriously affects the development of the plate-fin heat exchanger.
Method used
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[0011] The variable-fin-pitch plate-fin heat exchanger of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0012] The variable-fin-pitch plate-fin heat exchanger of the present invention can enhance the variable-fin-pitch plate-fin heat exchanger by setting a mixing chamber between the fin sections of the plate-fin heat exchanger, and the pitch of the fin sections decreases sequentially. heat transfer efficiency of the heater. Such as figure 1 As shown, it includes an inlet pipe 1 and an outlet pipe 9, and the inlet pipe is sequentially connected to the first deflector 2, the first fin segment 3, the first mixing chamber 4, the second fin segment 5, the second mixing chamber 6, and the third fin Segment 7, second deflector 8 and outlet pipe 9, the lengths of the first fin segment, the second fin segment, and the third fin segment are the same, and the spacing between the fins of each fin segment decreases success...
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The invention discloses a variable-fin-spacing type plate-fin heat exchanger. The variable-fin-spacing type plate-fin heat exchanger comprises an inlet pipe and an outlet pipe. The inlet pipe is sequentially connected with a first flow deflector, a first fin segment, a first mixing chamber, a second fin segment, a second mixing chamber, a third fin segment, a second flow deflector and an outlet pipe. The first fin segment, the second fin segment and the third fin segment are the same in length. The fin spacing in all the fin segments decreases successively, the fin spacing in the first fin segment is maximum, and the fin spacing in the third fin segment is minimum. After fluid entering the heat exchanger is subjected to heat exchange in the first fin segment, heat exchange efficiency is lowered, and the heat flow density is lowered; and the fluid mixed through the mixing chambers in the middles enters the fin segments with the short fin spacing, the heat exchange efficiency is improved remarkably.
Description
technical field [0001] The invention relates to the field of heat exchangers, in particular to a plate-fin heat exchanger with variable fin spacing. Background technique [0002] Plate-fin heat exchangers have attracted attention because of their high heat transfer efficiency, good temperature control, and compact structure. At the same time, because of its light weight and good economy, it is used in various fields in society, such as oxygen production, ethylene and helium liquefaction and other cryogenic equipment, power devices, etc. However, the heat transfer inside the plate-fin heat exchanger is extremely uneven, which seriously affects the development of the plate-fin heat exchanger. Contents of the invention [0003] The invention is a technical improvement based on the traditional plate-fin heat exchanger, so that the fin sections of the plate-fin heat exchanger can fully adapt to the change of fluid temperature during heat exchange. The three-section fin sectio...
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Login to View More IPC IPC(8): F28D9/00F28F3/02
CPCF28D9/0062F28F3/022
Inventor 张哲郝俊杰田津津王飒飒
Owner TIANJIN UNIV OF COMMERCE