Three methods for selecting pressure vessel heat exchangers

There are methods and techniques for selecting pressure vessel heat exchangers. Let's take a look at three methods for choosing pressure vessel heat exchangers below.

The plate type or corrugated type should be determined according to the actual needs of the heat exchange occasion. For cases with large flow rates and small pressure drops, plates with low resistance should be selected; conversely, plates with high resistance should be chosen. Based on the fluid pressure and temperature, determine whether to choose the detachable type or the brazed type. When determining the plate type, it is not advisable to choose those with a single plate area that is too small, as this may lead to an excessive number of plates, a low flow rate between the plates, and a low heat transfer coefficient. Special attention should be paid to larger heat exchangers.

For the design and selection of plate heat exchangers, there are generally certain pressure drop requirements, so verification should be carried out. If the pressure drop of the check valve exceeds the allowable pressure drop, the design and selection calculation should be redone until the process requirements are met.

Heat exchanger flow refers to a group of parallel flow channels in which the medium flows in the same direction in a plate heat exchanger. In a flow-channel plate heat exchanger, the medium flow channels are composed of two adjacent plates. Under normal circumstances, several flow channels are connected in parallel or in series, forming different combinations of cold and hot medium channels. The flow combination form should be determined based on the calculation of heat exchange and fluid resistance when the process conditions are met. The convective heat transfer coefficients of the cold and hot water channels should be equal or similar to achieve a good heat exchange effect. Although the flow rates between the plates of plate heat exchangers are different, the average flow rate is still used in heat exchange and fluid resistance calculations.

The above content is about three ways to choose pressure vessel heat exchangers. We hope it will be helpful to you. Lushen Pressure Vessels will serve you wholeheartedly and look forward to your visit.