A noncondensable gas tube heat exchanger with variable spacing of flow stabilization devices

Abstract

The invention provides a tube-shell heat exchanger. The tube-shell heat exchanger comprises a housing, wherein sealing heads are arranged at two ends of the housing; tube plates are arranged at positions where the sealing heads are connected to the housing; heat exchange tubes are connected to the tube plates at two ends; gas phase in gas-liquid two-phase current is insoluble or slightly-soluble gas, namely, gas cannot dissolve in liquid in the heat exchanging process. The tube-shell heat exchanger is characterized in that current stabilizers for absorbing vibration and reducing noise are arranged in the heat exchange tubes; a plurality of current stabilizers are arranged in one heat exchange tube; the spacing between adjacent current stabilizers gradually increases in the flowing direction of the liquid in the heat exchange tubes until reaching some position, and then the spacing between the adjacent current stabilizers gradually decreases from the some position. According to the heatexchanger, the vibration of pipelines can be minimized based on the spacing change of the current stabilizers while the pipelines are subjected to gas-liquid two-phase flowing, and moreover, the noise level is decreased, and meanwhile, the flowing resistance is reduced.

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...

AI Technical Summary

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

Images