Double tube type heat exchanger based on external expansion type threaded pipe
A threaded tube and external expansion technology, which is applied in the engineering application field of heat transfer, can solve the problems of low heat exchange efficiency, large floor space, and large metal consumption, so as to improve heat exchange efficiency and reduce floor space. , the effect of improving heat exchange efficiency
Pending Publication Date: 2021-02-19
HARBIN INST OF TECH
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Problems solved by technology
[0004] The purpose of the present invention is to solve the problems of low heat exchange efficiency, large floor space and large metal consumption of existing sleeve-and-tube heat exchangers with bare tubes as inner tubes, and provides a kind of heat exchanger based on external expansion threaded tubes. double tube heat exchanger
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[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0036] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0037] see figure 1 and 2 Describe this embodiment, a sleeve-and-tube heat exchanger based on an externally expanding threaded tube described in this embodiment, including two single sleeves 1, tube-side fluid connection tubes 2 and 2N heat exchange tubes 3; The heat exchange tube 3 is an exter...
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Abstract
The invention discloses a double tube type heat exchanger based on an external expansion type threaded pipe, and belongs to the technical field of engineering application of heat transfer science. Thedouble tube type heat exchanger aims at solving the problems that an existing double tube type heat exchanger with a light pipe as an inner pipe is low in heat exchange efficiency, large in occupiedarea and large in metal consumption. The double tube type heat exchanger comprises a heat exchange tube which is an external expansion type spiral corrugated tube; two single sleeves are in communication through a communicating pipe; the two ends of each single sleeve are sealed through end covers; N heat exchange tubes are arranged in each single sleeve, the axis of each single sleeve is parallelto the axes of all the heat exchange tubes in the single sleeve, and the two ends of the N heat exchange tubes in each single sleeve penetrate through the end covers corresponding to the two ends ofthe N heat exchange tubes in each single sleeve; the fixed ends of all the heat exchange tubes in the two single sleeves are in communication with a tube pass fluid connecting tube; the free ends of all the heat exchange tubes in each single sleeve are in communication with the outside; and each single sleeve is provided with an inlet / outlet. The double tube type heat exchanger is mainly used forfluid heat exchange.
Description
technical field [0001] The invention belongs to the technical field of engineering application of heat transfer. Background technique [0002] Since the invention of heat exchangers, various forms of heat exchangers have been used in different industrial fields for more than two hundred years, and they are essential key equipment in many processes. The sleeve-and-tube heat exchanger adopts a model structure in which heat exchange tubes of different diameters are nested together, so that the working medium participating in heat exchange forms a tube side and a shell side that flow in opposite directions, and has a large average in the heat exchange process. The heat transfer temperature difference, the heat transfer efficiency is high, and the structure is simple and easy to design. It has great application value in many environments such as high temperature and high pressure. [0003] There are many metallurgical, glass, cement and other industrial factories in my country, ...
Claims
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Login to View More IPC IPC(8): F28D7/10F28F1/08F28F9/02
CPCF28D7/10F28F1/08F28F9/02
Inventor 王维李炳锐赵文可帅永李炳熙张亚宁
Owner HARBIN INST OF TECH