Plate heat exchangers are certainly familiar to everyone and are widely used in the fields of chemical industry, medicine, food, and fine chemistry.
Plate heat exchangers have the characteristics of high heat transfer coefficient, small pressure drop, compact structure and small footprint. At the same time, plate heat exchangers are also used in urban central heating projects. So what is the working principle of plate heat exchanger?
Let's take a look at the working principle and structure of plate heat exchangers:
The basic structure of plate heat exchanger is composed of:
1. Plate heat exchanger plates
2. Plate heat exchanger sealing gasket,
3. Fixed pressing plate,
4. Movable compression plate,
5. Clamping bolts,
6. Upper guide rod,
7. Lower guide rod,
8. Rear pillar
When these types of plate heat exchangers are running, they are made of many stamped corrugated thin plates at certain intervals, sealed with gaskets around them, and overlapping and compressed using frames and compression screws, so the gaskets There are distribution pipes and collecting pipes all around that allow the fluid to flow, and these gaskets can separate the hot and cold fluids, flow in the flow channels on both sides, and then conduct heat exchange through the plates. This is the plate type Heat exchanger working principle.
Although there are only a few plate heat exchanger structures, these different structures will distinguish more heat exchangers. For example, different shapes can be divided into:
1. Detachable plate heat exchanger
2. Welded plate heat exchanger,
3. Spiral plate heat exchanger,
4. Plate and coil heat exchangers.
In addition, there are many types of heat exchangers that divide plate and coil heat exchangers into different names according to different types.
In the plate heat exchanger, the main functions are the frame and the plates. The materials of these plates are composed of thin plates with different corrugations. When the fluid flows, the plates play a key role. The frame is composed of fixed compression plates and movable compression plates. It is precisely because of these frames that the plates can be stable when running, and the pressure drop will not be too fast or too slow. Water flow affects.