Considerations and elimination of liquid seals and gas collection in design
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As shown in the figure: To reduce cooling due to gas phase entrainment, the water cooler inside the tower uses cold water that flows from bottom to top to cool the top of the tower. However, a liquid seal was considered during the design, which results in a basin-shaped structure in the actual piping; as a result, the gaseous phase of cold water cannot be removed, affecting the cooling efficiency. Is there a problem with the design aspect of the process, or is it an issue with our actual operations?
Adding a liquid seal can prevent residual water from remaining in the heat exchanger in cases where cooling water is unavailable, such as when the pump stops operating. Cann’t the gas inside the heat exchanger be removed through the exhaust valve?
No exhaust valve is installed at the high point; there is concern that the presence of a gas phase during operation may affect the heat exchange efficiency.