A kind of pulsating flow shell-and-tube heat exchanger and its heat exchanging method

A shell-and-tube heat exchanger and pulsating flow technology, applied in the field of heat exchange, can solve problems such as poor heat transfer effect on the tube side, inability to achieve energy saving and consumption reduction, and inability to meet heat exchange requirements, achieving obvious energy saving effects, Reduce pump power consumption, good stress condition

Active Publication Date: 2017-04-05
杭州泵浦节能技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The existing shell-and-tube heat exchanger consumes too much pump work, and the heat transfer effect on the tube side is not good, which cannot meet the heat exchange demand and fail to achieve the purpose of energy saving and consumption reduction

Method used

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  • A kind of pulsating flow shell-and-tube heat exchanger and its heat exchanging method
  • A kind of pulsating flow shell-and-tube heat exchanger and its heat exchanging method
  • A kind of pulsating flow shell-and-tube heat exchanger and its heat exchanging method

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Embodiment Construction

[0015] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0016] Please refer to figure 1 As shown, the preferred embodiment of the pulsating flow shell-and-tube heat exchanger of the present invention includes a plurality of heat exchange tubes 1, a pulsating flow generation system, a shell 5, and left and right tube sheets 20 and 21 at both ends of the shell 5, respectively connected to the left and right The left and right end covers 3 and 4 connected by the tube sheets 20 and 21 and the plurality of baffles 19 in the casing 5 . The tube-side liquid heat exchange working medium flow is in a state of low average Reyno...

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Abstract

The invention relates to a pulsating flow shell-and-tube heat exchanger and a heat exchange method thereof. The heat exchanger comprises multiple heat exchange pipes, a pulsating flow generation system, a shell, pipe plates at the two ends of the shell, end covers connected with the pipe plates, and multiple baffle plates in the shell, wherein the heat exchange pipes have periodically circular inner rib structures; all ring ribs are arranged in parallel, and are perpendicular to the axis; and the pulsating flow generation system converts a heat exchange working medium, flowing through the right end cover part of the shell-and-tube heat exchanger, from a constant flow state to a pulsating flow state having average velocity. As a pulsating flow is combined with the round pipes having the periodical inner ring rib structures, when a fluid at the tube pass side of the heat exchanger is in low average Reynolds number, a constant flow is converted to a longitudinal waveform pulsating flow having a certain frequency and amplitude, periodical vortexes can be formed in the heat exchange pipes having the inner ring rib structures, and the heat exchange efficiency and the scaling prevention capacity of the fluid at the tube pass side are improved.

Description

technical field [0001] The invention relates to the technical field of heat exchange, in particular to a pulsating flow shell-and-tube type pulsating flow heat exchanger and a heat exchanging method thereof. Background technique [0002] With the increasingly tense global energy situation and the decrease of conventional energy sources, people pay more and more attention to energy saving and consumption reduction. Shell heat exchangers are widely used in petrochemical, electric power, environmental protection, energy and other industrial fields. The main function is to adjust the temperature of the process medium in industrial production to meet the process requirements and recover waste heat to achieve energy saving and consumption reduction. Therefore, optimizing the design or improving the structure of the shell heat exchanger to improve its heat transfer performance and reduce its power consumption is related to production efficiency and energy saving. [0003] In addit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28D7/16F28F9/24F28F13/12F28F1/40
Inventor 钟英杰黄其王明晓徐璋邓凯
Owner 杭州泵浦节能技术有限公司
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