Novel total-reverse-flow rotary non-mixing heat exchanger

A flow channel converter and heat exchanger technology, applied in the direction of heat exchanger types, indirect heat exchangers, moving tube heat exchangers, etc., can solve the problem of increasing fluid turbulence in the shell side of tube-and-tube heat exchangers, etc. problem, to achieve the effect of fluid temperature homogenization, increase the average temperature difference of heat transfer, and reduce equipment investment

Active Publication Date: 2014-12-03
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are relatively few studies on dynamic heat exchangers. CN103175420A discloses a core rotary heat exchanger, which mainly increases the turbulence of the shell-side fluid of the tube-and-tube heat exchanger by rotating the heat exchange core. To achieve the purpose of enhancing the heat transfer effect

Method used

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  • Novel total-reverse-flow rotary non-mixing heat exchanger
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  • Novel total-reverse-flow rotary non-mixing heat exchanger

Examples

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Embodiment

[0032] The main body length of the fully countercurrent rotating non-mixing heat exchanger is 1m, and the diameter is 0.4m, of which the length of the heat exchanger cylinder partition is 0.8 meters, the flow channel exchanger length is 0.1 meters, and the heat exchanger cylinder partition The number of plates and partitions for each runner converter is 8, and the number of outer baffles and inner baffles for each runner converter is 4. The original thickness is 1mm and the material is stainless steel. The cross-sectional diameter on the left side of the runner converter is 0.3m. The experimental medium is air, the flow rate of cold air is 11.3 cubic meters per second, the inlet temperature is 300K, the flow rate of hot air is 11.3 cubic meters per second, and the inlet temperature is 800K. Use Fluent fluid mechanics calculation software to simulate heat transfer calculation. The heat transfer effect obtained is compared with the tube heat exchanger under the same heat exchan...

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PUM

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Abstract

The invention discloses a novel total-reverse-flow rotary non-mixing heat exchanger. The novel total-reverse-flow rotary non-mixing heat exchanger is characterized in that portions, except for a heat exchanger base, of the heat exchanger can rotate in service procedures, and the heat exchanger comprises a heat exchanger barrel, flow channel converters, inner seal heads of the heat exchanger, outer seal heads of the heat exchanger and the heat exchanger base; total-reverse-flow non-mixing rotary heat exchange effects can be realized for two channels of fluids, and the purpose of improving the heat exchange effects can be achieved. The heat exchanger barrel is a cylindrical barrel with two or an even number of internal barriers, the even number is larger than 2, the barrel is uniformly divided into an even number of equal portions by the barriers, a fan-shaped flow channel is formed by each left barrier, the corresponding right barrier and a cylindrical barrel portion sandwiched by the left barrier and the right barrier, and the flow channel converters are used as flow channel conversion devices. The novel total-reverse-flow rotary non-mixing heat exchanger has the advantages that the heat exchanger is used in fluid heat exchange places and is high in heat exchange efficiency, average heat exchange temperature difference and outlet temperature uniformity and free of mixing among the heat exchange fluids; the novel total-reverse-flow rotary non-mixing heat exchanger is wide in application and can be applied to heat transfer enhancement or temperature homogenization among different fluids in industrial application, and the like.

Description

Technical field [0001] The invention relates to a novel full countercurrent rotating non-mixing heat exchanger, which belongs to the technical category of fluid heat exchange equipment. Background technique [0002] The heat transfer process is very common in industrial processes and daily life, and is one of the basic physical processes in nature. It is widely seen in sectors such as power, chemical, metallurgy, aerospace, air conditioning, refrigeration, machinery, textiles, and construction. The cooling of a single unit power of 1.3 million kilowatts is closely related to the heat transfer process. The heat exchanger is a universal equipment widely used in the heat transfer process. In oil refineries, the equipment investment of the heat exchanger accounts for about 25% of the total investment, and the weight of the heat exchanger accounts for 20% of the total equipment weight. Take a power plant as an example. The investment in various boilers, condenser heaters and other h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D11/02
Inventor 刘春江刘辉张婷李敬楠
Owner TIANJIN UNIV
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