What is a clip-type heat exchanger? ? ?

A clip-type heat exchanger is, in simple terms, a single-pass shell-and-tube heat exchanger that is bent into a clip shape in the middle. Traditional shell-and-tube heat exchangers can only achieve partial counterflow; that is, in a heat exchanger with two tube banks, only one of them operates in counterflow mode. The primary technical advantage of clip-type heat exchangers is their ability to achieve pure counterflow. Because pure counterflow heat transfer works very well.

The standards for heat exchangers with external coils abroad include API STD663 and ISO12212, while in China the standard is SH/T3119 for shell-and-tube heat exchangers. The rear flange of the card issuer heat exchanger is further divided into oblong flanges and circular flanges, with both types of structures being in use. The oblong shape uses less material and takes up less space; however, analysis can only be performed through calculations, and the process takes a relatively longer time ； The circular flange structure can be designed using conventional calculations, but this results in material waste (although the openings in the flat cover meet the requirements specified in GB/T150 in many cases, they generally do not satisfy the requirements set by ASME for such openings). So, usually, there is still a need to analyze flat covers with two holes on the back side.