Heat exchanger with bypass

Which bypass are you referring to exactly? Materials? Public?

High-pressure heat exchangers are generally not designed~~~

Some heat exchangers control the temperature of the material not through a heat source or cold source, but through a bypass. Also, when the heat exchanger is prone to clogging, a bypass is provided to ensure smooth flow of the material.

The cooled medium already has a low temperature at the inlet

A bypass has been added on the process side; there is a gate valve and a stop valve on the pipeline, but no control valve.

If all the gas passes through the condenser, it can be difficult to control the pressure or temperature; this can be addressed by diverting a portion of the gas through a bypass circuit

With a bypass installed on the heat exchanger, it’s basically the same as shutting it down, right?

In applications where automatic temperature control is required, a temperature control valve is used to regulate the temperature at the outlet of the heat exchanger.

When selecting a heat exchanger, two factors must be considered: one is sufficient heat transfer, and the other is sufficient pressure drop. Watt, the steam engineer, discovered that in certain applications, the heat-side fluid has a high specific heat or a large temperature difference, while the cold side has a low specific heat or a small temperature difference ； If selection is based on heat capacity, it can sometimes result in an excessive pressure drop on the cold-side fluid. In that case, a heat exchanger together with a bypass is used to divert part of the fluid, thereby increasing the temperature difference of the fluid flowing through the cold-side heat exchanger and satisfying the requirements regarding heat transfer and pressure drop. Otherwise, meeting both the heat requirement and the pressure drop requirement will result in a heat exchanger that is too large, increasing its cost; it will also cause fluctuations in temperature control during use.