Design and selection personnel often encounter questions about parameter confirmation and material matching in their practical work. The following Q&A focuses on the key points of model selection for BR-68 plate heat exchangers, for reference in procurement and design.
A: Gasket hardening and cracking, as well as edge leakage, are mostly related to a mismatch between medium composition and gasket material. During procurement, information such as medium name, concentration, operating temperature, and whether chloride ions are present should be provided. Based on this, the supplier recommends gasket materials such as nitrile rubber, EPDM, or fluororubber, and verifies the corrosion resistance of plate materials (such as 304 and 316L stainless steel) to avoid leakage after commissioning.
A: The inlet and outlet temperatures on the hot side and cold side, design flow rates, and allowable pressure drop must be specified. Technical personnel use these parameters to calculate the heat transfer area and plate combination, ensuring that the BR-68 meets the heat transfer requirements under the given working conditions while keeping the pressure drop within the process allowance. If parameters are incomplete, preliminary selection can be made based on typical working conditions and then adjusted according to actual data.
A: On-site space, maintenance access, and cleaning methods affect the equipment interface orientation and frame type. Informing the supplier in advance of the installation location and maintenance cycle can avoid difficulties in positioning or inconvenience in gasket replacement. For occasions requiring frequent disassembly and cleaning, a clamping structure that is easy to disassemble should be selected.
A: It is recommended to require the supplier to provide selection calculation sheets, material certificates, and pressure test reports to verify the consistency between design parameters and the actual product. At the same time, the supply cycle of gasket spare parts should be clarified to facilitate later maintenance.
