Thermal insulation plate heat exchanger is a common heat exchange equipment, which is widely used in chemical, petroleum, pharmaceutical, food and other industries. Due to the peculiarities of the working environment, the heat exchanger is easy.
Affected by corrosion, the corrosion resistance of insulated plate heat exchangers is very important.
There are two main corrosion problems on insulated plate heat exchangers: medium corrosion and external environmental corrosion. Medium corrosion refers to the corrosive effect of heat exchange medium on the internal materials of the heat exchanger, while external environmental corrosion refers to the corrosive effect of humidity, pH and other factors in the environment on the surface materials.
In order to solve these problems, the current insulation plate heat exchanger is generally made of corrosion-resistant materials, including stainless steel, titanium alloy, etc. These materials have good corrosion resistance.
Yes, it can be used for a long time in harsh working environments without corrosion.
In addition, surface treatment is also possible to improve the corrosion resistance of insulated plate heat exchangers. Common surface treatments include spraying and galvanizing. Spraying is the spraying of a special coating on the surface of the heat exchanger to form a protective film that prevents the medium from further corroding the metal material. Galvanizing is to cover the surface of zinc metal and protect the metal material through the electrochemical protection of zinc.
In addition to materials and surface treatment methods, design is also a key factor in improving the corrosion resistance of insulated plate heat exchangers. The corrosive properties of the medium should be fully considered in the design, the appropriate materials should be selected, and anti-corrosion measures should be taken according to the actual situation, such as increasing the thickness and setting the anti-corrosion layer.
The insulation layer of the insulated plate heat exchanger is also an important aspect, which can reduce the influence of the external environment on the heat exchanger and prolong its service life. The material of the insulation layer is generally selected as an acid and alkali resistant material, such as rock wool, glass wool, etc. At the same time, the integrity of the insulation layer should be ensured to avoid air or moisture penetrating into the insulation layer and causing corrosion.
In conclusion, the corrosion resistance of the insulated plate heat exchanger has an important impact on its normal operation and service life. Rational selection of materials, surface treatment and reinforced design are all key to ensuring its corrosion resistance. Only the corrosion resistance of the heat exchanger can improve its work efficiency, reduce maintenance costs, and ensure the stability and safety of production. Therefore, in the purchase and use of insulated plate heat exchanger, corrosion resistance is a non-negligible index, which needs to be paid attention to.