Rotational flow disturbance device and heat exchange pipe structure

Abstract

The invention provides a rotational flow disturbance device and a heat exchange pipe structure. The rotational flow disturbance device is used for being installed in the heat exchange pipe structure, and the heat exchange pipe structure comprises a first pipe and a second pipe arranged in the first pipe in a penetrating mode. An annular flow path for a first fluid to flow is formed between the first pipe and the second pipe. The second pipe allows a second fluid to flow. The first fluid and the second fluid are different in temperature. The rotational flow disturbance device comprises a first rotational flow assembly and a second rotational flow assembly which are relatively fixed. The first rotational flow assembly is arranged in the first pipe in a penetrating mode and sleeves the second rotational flow assembly, and the second rotational flow assembly sleeves the second pipe and is detachably connected with the second pipe. A first external thread is arranged outside the first rotational flow assembly, a second external thread is arranged outside the second rotational flow assembly, the annular flow path is divided into a first spiral flow channel located between the first external thread and the first rotational flow assembly and a second spiral flow channel located between the second external thread and the second rotational flow assembly. The problem that in the prior art, the flowing pressure drop in a heat exchange pipe with a swirler is too large is solved.

Description

technical field [0001] The invention relates to the field of heat exchange tubes, in particular to a swirl disturbance device and a heat exchange tube structure. Background technique [0002] The heat exchange tube is the core component of the heat exchange equipment, and the actual heat exchange performance of the heat exchange equipment is always affected by the material properties and shape structure of the heat exchange tube. In order to enhance the heat transfer effect in the tube, it is more common to use the flow pattern in the tube disturbed by the swirl flow. After the fluid flows through the cyclone, a strong vortex flow is formed to reduce the thickness of the boundary layer and promote heat and mass transfer in the tube. It can also have a strong scouring effect on the tube wall, thereby reducing the scale on the inner wall of the tube. Formed to reduce the hindrance of heat transfer. [0003] In the form of swirling disturbance of the heat exchange tube in the...

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Problems solved by technology

[0005] The main purpose of the present invention is to provide a swirl disturbance device and a heat exchange tube structure to solve the problem of excessive flow pressure drop in a heat exchange tube with a swirler in the prior art

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