Flow stabilizer distance enlarging condensable gas heat exchanger

Abstract

The invention provides a gas-liquid two-phase flow multi-tube type shell-tube heat exchanger. The gas-liquid two-phase flow multi-tube type shell-tube heat exchanger comprises a shell. Sealing heads are arranged at the two ends of the shell correspondingly. Tube plates are arranged at the connecting positions of the sealing heads and the shell. Heat exchange tubes are connected with the tube plates at the two ends, and a gas phase in gas-liquid two-phase flow can be condensed into a liquid phase in the heat exchange process. Each heat exchange tube is internally provided with flow stabilizersfor damping and noise lowering. The same heat exchange tube is internally provided with the multiple flow stabilizers. In the flowing direction of fluid in the heat exchange tubes, the distance between the adjacent flow stabilizers is gradually increased. According to the provided gas-liquid two-phase flow multi-tube type shell-tube heat exchanger, through the length changes of the flow stabilizers, when gas-liquid two-phase flow exists in a pipeline, pipeline vibration is weakened to the maximum degree, the noise level is reduced, meanwhile, flowing resistance is reduced, and the heat exchange uniformity is improved.

Description

technical field [0001] The present invention relates to a shell-and-tube heat exchanger, and more particularly to a two-phase flow heat exchanger containing condensable gas. Background technique [0002] Vapor-liquid two-phase flow heat exchange widely exists in various heat exchange devices. Due to the existence of the vapor phase in the heat exchange process of vapor-liquid two-phase flow, the heat exchange efficiency will be low, the heat exchange will be deteriorated, and the fluid flow process will be unstable. , and will lead to the occurrence of impact phenomenon. When the gas-liquid phase of the two-phase working fluid is not uniformly mixed and flows discontinuously, the large-sized liquid mass will occupy the air mass space at high speed, resulting in unstable two-phase flow, which will violently impact equipment and pipelines, resulting in strong vibration and noise , which seriously threatens the safety of equipment operation. [0003] Therefore, aiming at the ...

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Problems solved by technology

[0002] Vapor-liquid two-phase flow heat exchange widely exists in various heat exchange devices. Due to the existence of the vapor phase in the heat exchange process of vapor-liquid two-phase flow, the heat exchange efficiency will be low, the heat exchange will be deteriorated, and the fluid flow process will be unstable. , and will lead to the occurrence of impact phenomenon

When the gas-liquid phase of the two-phase working fluid is not uniformly mixed and flows discontinuously, the large-sized liquid mass will occupy the air mass space at high speed, resulting in unstable two-phase flow, which will violently impact equipment and pipelines, resulting in strong vibration and noise , which seriously threatens the safety of equipment operation

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