Process Section – Daily Hydrogenation Process Knowledge Question No. 002
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What is the difference between vertical heat exchangers and horizontal heat exchangers? Answer: If a bottom reboiler is used, the horizontal heat exchanger is filled with heat exchange fluid, resulting in a larger heat exchange area as well as better thermosiphon effects. The heat exchange area of a vertical heat exchanger depends on the liquid level in the tower bottom; when the liquid level is low, the heat exchange efficiency is poor
1. Horizontal heat exchangers require a large amount of space; they use square tubes and allow for counterflow or co-current operation. Vertical heat exchangers take up less space; they need a platform for operation and generally operate in counterflow mode. 2. If a bottom reboiler is used, the horizontal heat exchanger is filled with heat exchange fluid, resulting in a large heat exchange area as well as a good thermosiphon effect. The heat exchange area of a vertical heat exchanger depends on the liquid level in the tower bottom; when the liquid level is low, the heat exchange efficiency is poor
Horizontal water supply is stable and safe, but it requires a large amount of space, involves high investment costs, and has a low heat transfer coefficient. Vertical type is stable and safe, occupies less space, and offers good heat exchange performance
This post was last edited by Peng Zuosen on 2017-7-17 08:51. If a bottom reboiler is used, the horizontal heat exchanger is filled with heat exchange fluid, resulting in a larger heat exchange area as well as better thermosiphon effects; whereas the heat exchange area of a vertical heat exchanger depends on the liquid level in the tower bottom, and the heat exchange efficiency is lower when the liquid level is low
Horizontal heat exchangers occupy more space but are easy to use; they can operate in counterflow or co-current mode. Vertical heat exchangers take up less space, but require a platform for operation, and generally function in counterflow mode
Horizontal heat exchangers occupy more space but are easy to use; they can operate in counterflow or co-current mode. Vertical heat exchangers take up less space, but require a platform for operation, and generally function in counterflow mode
1. Horizontal volumetric heat exchanger: stable and safe water supply； The required clear height in the machine room is not high. Large land footprint and high investment costs ； The heat transfer coefficient is low, resulting in poor heat exchange performance. 2. Vertical volumetric heat exchanger: stable and safe water supply ； Space-saving ； The heat transfer coefficient is high, resulting in good heat exchange performance. The required clear height of the machine room is ≮3.5m.
1. Horizontal heat exchanger: stable and safe water supply； The required clear height in the machine room is not high. Large land footprint and high investment costs ； The heat transfer coefficient is low, resulting in poor heat exchange performance. 2. Vertical heat exchanger: stable and safe water supply ； Space-saving ； The heat transfer coefficient is high, resulting in good heat exchange performance. The required clear height of the machine room is ≮3.5m.
1. Horizontal heat exchanger: stable and safe water supply； The required clear height in the machine room is not high. Large land footprint and high investment costs ； The heat transfer coefficient is low, resulting in poor heat exchange performance. 2. Vertical heat exchanger: stable and safe water supply ； Space-saving ； The heat transfer coefficient is high, resulting in good heat exchange performance. The required clear height of the machine room is ≮3.5m.
Answer: If a bottom reboiler is used, the horizontal heat exchanger is filled with heat exchange fluid, resulting in a larger heat exchange area as well as better thermosiphon effects. The heat exchange area of a vertical heat exchanger depends on the liquid level in the tower bottom; when the liquid level is low, the heat exchange efficiency is poor