Plate Heat exchanger manufacturer, industry solution expert

Technical requirements found during maintenance of plate heat exchanger_

by:DIGUANG     2021-04-11
Technical requirements found during maintenance of plate heat exchangers

2018-11-29 14:00
The overall technical requirements of the 888 plate heat exchanger technical specifications are that the plate heat exchanger is a detachable heat exchanger and adopts the same side flow form. Plate heat exchanger maintenance suggests that when selecting and determining the heat exchange area, various unfavorable factors such as the difference between operation and design conditions should be fully considered. The heating conditions should be selected according to the heat transfer coefficient not exceeding 5500W/m2K. The plate material is AISI316, the thickness is 0.5mm, and the gasket material is EPDM, snap-on type, without sticking; the commonly used design pressure is 1.6MPa, and the gasket temperature is 150℃; the design pressure drop of the plate heat exchanger, the primary side ≤50kPa, two The secondary side is less than or equal to 50kPa; during the strength test, the unilateral pressure is carried out at 1.3 times the working pressure. When the pressure on the hot water side is 1.6 MPa and the pressure on the cold water side is normal, the safety of the heat exchanger should be guaranteed; similarly, when the pressure on the cold water side is 1.6 MPa and the pressure on the hot water side is normal, it should be able to ensure the replacement. The safety of the heater. The leakage rate of the plate heat exchanger is zero under P≤1.6Mpa, t≤120℃ or occasional water hammer conditions, and conforms to the standard 'Plate Heat Exchanger' GB/T16409, and also complies with relevant European manufacturing standards. Technical requirements The main parts and heat exchange capacity of the plate heat exchanger are explained as follows: A. ※The material of the plate is the imported plate pressed by foreign countries. B. ※The sealing rubber gasket is made of imported EPDM rubber. It is a non-adhesive snap-on gasket. It is an imported gasket originally formed from abroad. C. The heat exchanger adopts the same-side flow form, with an optimized diversion area design, and a pressure balance system in the diversion area, so that the fluid is evenly distributed in the plate heat exchange area, thereby avoiding uneven flow distribution and flow dead angles. Incoming heat transfer efficiency drops, pitting corrosion and scaling and other disadvantages. D. The frame of the plate heat exchanger leaves 15% of the capacity of the plate. E. ※There are multiple self-positioning systems, in addition to the traditional five-point positioning, there are mutual locking positions at the edges and corners to prevent the plate from sliding during the clamping process. F. Provide the heat exchanger performance inspection report issued by the heat exchanger inspection agency. G. Able to provide the plate heat exchanger safety registration certificate (A1, A2, A3) H. ※The corner hole size of the plate is greater than or equal to the interface flange size, reducing the resistance of the corner hole passage
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