In the cooling circuit of a reactor, the matching relationship between medium flow rate and allowable pressure drop directly affects heat transfer performance. If procurement personnel select a model based solely on connection size and design pressure, they may easily overlook verification of channel flow velocity, resulting in pressure drop exceeding expectations or insufficient heat transfer capacity after operation. The YBJ-55 welded plate heat exchanger addresses such engineering parameter misalignment by providing verifiable plate channel data and pressure-temperature boundaries, facilitating parameter matching during the procurement stage.
Plate channel flow velocity should be periodically verified in conjunction with medium flow rate and allowable pressure drop. Cyclic temperature variations subject the plates to alternating thermal stress, and deviation of flow velocity from the design range will exacerbate pressure drop fluctuations. This model specifies the single-channel flow area and reference flow velocity range in its selection documentation, enabling procurement personnel to calculate the pressure drop under actual operating conditions and avoid deviations caused by ordering based solely on connection size.
Welded plate heat exchangers replace gaskets with welding, and their pressure and temperature resistance are limited by plate material and welding process. The design pressure and design temperature parameters of the YBJ-55 are clearly marked in the catalog; procurement personnel should verify whether the medium operating temperature retains a margin for alternating thermal stress and confirm the applicability of the welded structure under cyclic temperature variations. When boundary conditions are exceeded, material or structural adjustments must be discussed with technical personnel.
Procurement personnel are advised to verify in the following order: the correspondence between medium flow rate and allowable pressure drop, whether the single-channel flow velocity is within the reference range, the difference between design pressure and operating pressure, and the alternating amplitude between design temperature and medium temperature. After confirming these parameters item by item, the model can then be determined in conjunction with connection size, reducing misalignment between on-site requirements and selection parameters.
This model is suitable for reactor cooling circuits, process medium cooling and heating, and other operating conditions. Specific selection must be determined based on medium characteristics and parameter verification results.
