High temperature resistant plate heat exchanger

High temperature resistant heat exchanger refers to heat exchange equipment used under high temperature conditions. At present, commonly used high-temperature heat exchangers mainly include fully welded high-temperature plate heat exchangers, tubular high-temperature heat exchangers, and gas gas high-temperature plate heat exchangers. Let's further understand these high-temperature heat exchangers through their composition, structure, and working principles.

1、 Fully welded high-temperature resistant plate heat exchanger
In fact, there is no significant difference in appearance between fully welded and detachable plate heat exchangers, and their composition and structure are basically the same. However, fully welded high-temperature resistant plate heat exchangers do not use non-metallic sealing materials, do not have sealing gaskets, and use full welding technology for sealing. Therefore, the fully welded high-temperature resistant plate heat exchanger not only synchronizes the advantages of compact detachable structure, but also has the performance of high temperature and high pressure resistance, and has the ability to replace traditional shell and tube heat exchangers.

The fully welded high-temperature heat exchanger can be applied to: crude oil, natural gas purification treatment, and chemical products; Chemical industry; Pharmaceuticals and specific chemical products; Spray control system; HVAC refrigeration, district heating, thermal power plants; Food technology; In the field of heat recovery from cooling towers. Compared to other heat exchangers, it has a wider range of applications.

2、 High temperature resistant tubular heat exchanger
Although tubular heat exchangers are not as easy to clean and maintain as plate heat exchangers, and their footprint and heat transfer efficiency are not as good as plate heat exchangers, they still have certain advantages over detachable plate heat exchangers in terms of high temperature and high pressure resistance. But its cost is higher than that of fully welded plate heat exchangers under the same operating conditions.

3、 Gas gas heat exchanger
Gas gas heat exchanger is a common type of high-temperature resistant flue gas heat exchanger, which can be divided into many types due to different environments. There are generally three common forms: tubular, rotary, and plate. In fact, many industries initially used tubular and rotary structures, but with the emergence of plate modular structure gas air heat exchangers, they gradually replaced tubular and rotary structures. Due to the large footprint and susceptibility to dust accumulation and blockage, tube heat exchangers are difficult to maintain and require complete replacement, resulting in high costs. Although the rotary heat exchanger has a smaller structure, it is complex and prone to air leakage.

We have developed and produced a plate type flue gas heat exchanger that combines the advantages and disadvantages of various models of heat exchangers, and has the advantages of compact structure, small footprint, high heat transfer efficiency, low clogging, and high temperature resistance. The plate type air preheater is welded from a box and a series of heat exchange plates. Different temperature resistant and corrosion-resistant materials can be flexibly selected according to the low, medium, and high temperature ranges. Even if replaced, only one module needs to be replaced. The costs are relatively low in the early, middle, and later stages. Widely used in boiler and various industrial furnace flue gas waste heat recovery.

High temperature resistant heat exchangers have different heat exchanger models according to different working conditions and heat exchange media. High temperature resistant plate heat exchangers are customized products that need to be selected and calculated based on the comprehensive conditions of the entire working condition.