A non-condensable gas tube heat exchanger with variable length of flow stabilization device

Abstract

The present invention provides a gas-liquid two-phase flow multi-tube shell-and-tube heat exchanger, which includes a shell, and the two ends of the shell are respectively provided with heads, and the connection position between the head and the shell is set with a tube plate. The heat exchange tube is connected to the tube sheets at both ends. The gas phase in the vapor-liquid two-phase flow is an insoluble or insoluble gas, that is, the gas will not dissolve in the liquid during the heat exchange process. It is characterized in that the heat exchange tube is set for reducing A stabilizing device for vibration and noise reduction. Multiple stabilizing devices are installed in the same heat exchange tube. Along the flow direction of the fluid in the heat exchange tube, the length of the stabilizing device first gradually decreases to a certain position, and then from From a position, the length of the flow stabilizing device increases gradually. The invention provides a method for reducing the vibration of the pipeline to the greatest extent, lowering the noise level and reducing the flow resistance at the same time when the gas-liquid two-phase flow exists in the pipeline through the length change of the flow stabilizing device.

Description

technical field [0001] The invention relates to a shell-and-tube heat exchanger, in particular to a two-phase flow heat exchanger containing non-condensable gas. Background technique [0002] Two-phase flow heat exchange containing non-condensable gas widely exists in heat exchange devices, for example, non-condensable gas is mixed in the heat exchange process, or non-condensable gas is produced due to equipment aging during fluid transportation, and natural gas, for example Condensation of mixed media with different boiling points, air separation, mixed refrigerant refrigeration, petroleum or waste plastic cracking, production The main technological process of industries such as material gas production. [0003] The existence of the gas phase in the heat exchange process of the fluid containing non-condensable gas will lead to low heat exchange efficiency, worsen heat exchange, unstable fluid flow process, and lead to collision phenomenon. When the gas-liquid phase of the...

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Problems solved by technology

However, the above-mentioned technology does not solve the vibration and noise problems in the gas-liquid two-phase flow heat exchanger, and the above-mentioned solution has a complex structure, and because of the size of the thorns, the disturbance on the entire cross-section in the middle of the heat exchange tube cannot be guaranteed. The overall uniformity of the gas phase and liquid phase cannot be achieved, and the noise and vibration problems are still serious

[0005] The current arrangement of flow stabilizing devices to solve vibration and noise is not arranged according to the laws of shock absorption and noise reduction, resulting in excessive flow resistance in the pipe and poor effect of shock absorption and noise reduction

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