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Heat exchanger's 5 main structural components

Views:3     Author:Site Editor     Publish Time: 2020-09-25      Origin:Site

The working principle of the plate heat exchanger: Two different media (cold/heat) are exchanged through the corresponding plate heat exchanger, and the refrigerant heating or the heat medium cooling is realized in the two different channels A and B.

  The hot and cold fluid flows in the channel at intervals, which can be countercurrent or downstream. During the flow, the hot and cold fluids exchange heat through the plate wall. There are many process combinations of plate heat exchangers, all of which are realized by using different reversing plates and different assemblies. The process combinations can be divided into single process, multi-process, vapor-liquid exchange process, and mixed process form.

  Plate heat exchanger is mainly composed of heat transfer plates, sealing gaskets, fixed clamping plates, movable clamping plates, clamping bolts, pillars, etc.

  1. Heat transfer plate

  The heat transfer plate is the main heat exchange element of the heat exchanger. Generally, the corrugation is made into a herringbone shape. According to the different fluid medium, the material of the heat transfer plate is different. Most of them are made of stainless steel and titanium.

  2. Seal gasket

  The sealing gasket of the plate heat exchanger mainly plays the role of sealing and medium diversion between the heat exchange plates. The materials are: nitrile rubber, EPDM, fluorine rubber, etc. Different rubbers are used according to different media.

  3. Fixed clamping plate and movable clamping plate

   Two-end pressure plate mainly clamps and presses all the heat transfer plates to ensure that the fluid medium does not leak.

  4. Clamping bolt

   Clamping bolts are mainly used to tighten the pressure plates at both ends. Clamping bolts are generally double-threaded. When the bolts are pre-tightened, the torque of the fixed plate is even.

   5. Pillars

  The pillars play a role in supporting the entire frame

  6. Hanger

   It is mainly to support the heat exchange plate to make it easy to disassemble, clean and assemble.

The process of heat exchanger is assembled by many plates according to a certain process and technical work requirements of the buyer. When assembling, the A plate and the B plate are arranged alternately. The four corner holes form a mesh channel between the plates to form a distribution pipe and a confluence pipe. The gasket (the gasket currently on the market is divided into three types: sticking pads). "On the plate" is more common, repair and replacement of the rubber pad is more difficult, and the pad "has a small hanging buckle that can be directly hung on the plate" This kind of maintenance and replacement is more convenient and simple. "Snap on the plate" is similar to the hang buckle in terms of maintenance and replacement) The hot and cold medium is sealed in the heat exchanger, and at the same time, the cold and hot medium are reasonably separated without mixing.

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