Causes of perforation of plate heat exchanger
To analyze the cause of the breakdown of the plate heat exchanger, we must first understand the operating principle of the plate heat exchanger. The plate heat exchanger is a large-scale equipment that realizes the heating of the cold side medium by the heat exchange of the convection medium, and the heat exchange effect occurs.
The reasons for plate heat exchanger breakdown are as follows:
1. Equipment Quality
The heat exchange surface of the plate heat exchanger will be relatively thin, at around 0.5mm, the corrosion degree is actually 0.05mm/year, the heat exchanger plate material of the plate heat exchanger is generally stainless steel 316/304, and 304 is the cheaper austenitic Body stainless steel will have anti-corrosion effect on organic matter, but if it is used in strong acid or alkali, its corrosion resistance will be much weaker. The plate heat exchanger of the air conditioner host is made of 304. After about 8 years of use, the plate heat exchanger will inevitably undergo corrosion and cracking.
2. Structural issues
A filter is installed in the system, but no electronic water treatment equipment is installed, and the management system will be scaled. If the filter is not cleaned in time, there will be fine gravels in the circulating water. Although there is no substantial damage to the equipment, it will appear. Breakdown of the plates of the plate heat exchanger. If the filter is a Y-type filter, the impurities in the medium will damage the equipment if it is not cleaned in time.
3. Maintenance issues
The heat exchanger gasket of the plate heat exchanger is a vulnerable component and a part that can be naturally aged under natural conditions. Its service life has an important impact on the life of the plate heat exchanger. If the heat exchanger gasket The sheet loses its elasticity and becomes hard, and the heat exchanger will leak if it is not replaced or tightened in time.
4. Cleaning issues
After a long-term operation of the plate heat exchanger, it must be cleaned in a timely manner, and the general cleaning time is once every two years. The plate heat exchanger can be disassembled for plate cleaning, but some heat exchangers cannot be disassembled and cannot be thoroughly cleaned. As the use time increases, problems such as clogging and scaling will occur. Once the plate heat exchanger appears The increase of the flow rate will increase the friction and wear will occur, which becomes one of the reasons for the breakdown of the plate of the plate heat exchanger.
The reason for the breakdown of the plate heat exchanger plates is to share with everyone, and the maintenance work can be done according to your own situation, thereby reducing the cost of investment
